1 | // Type definitions for Express 4.17
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2 | // Project: http://expressjs.com
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3 | // Definitions by: Boris Yankov <https://github.com/borisyankov>
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4 | // Satana Charuwichitratana <https://github.com/micksatana>
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5 | // Sami Jaber <https://github.com/samijaber>
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6 | // Jose Luis Leon <https://github.com/JoseLion>
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7 | // David Stephens <https://github.com/dwrss>
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8 | // Shin Ando <https://github.com/andoshin11>
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9 | // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
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10 | // TypeScript Version: 2.3
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11 |
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12 | // This extracts the core definitions from express to prevent a circular dependency between express and serve-static
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13 | /// <reference types="node" />
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14 |
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15 | declare global {
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16 | namespace Express {
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17 | // These open interfaces may be extended in an application-specific manner via declaration merging.
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18 | // See for example method-override.d.ts (https://github.com/DefinitelyTyped/DefinitelyTyped/blob/master/types/method-override/index.d.ts)
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19 | interface Request {}
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20 | interface Response {}
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21 | interface Application {}
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22 | }
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23 | }
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24 |
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25 | import * as http from 'http';
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26 | import { EventEmitter } from 'events';
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27 | import { Options as RangeParserOptions, Result as RangeParserResult, Ranges as RangeParserRanges } from 'range-parser';
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28 | import { ParsedQs } from 'qs';
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29 |
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30 | export {};
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31 |
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32 | export type Query = ParsedQs;
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33 |
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34 | export interface NextFunction {
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35 | (err?: any): void;
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36 | /**
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37 | * "Break-out" of a router by calling {next('router')};
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38 | * @see {https://expressjs.com/en/guide/using-middleware.html#middleware.router}
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39 | */
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40 | (deferToNext: 'router'): void;
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41 | /**
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42 | * "Break-out" of a route by calling {next('route')};
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43 | * @see {https://expressjs.com/en/guide/using-middleware.html#middleware.application}
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44 | */
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45 | (deferToNext: 'route'): void;
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46 | }
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47 |
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48 | export interface Dictionary<T> {
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49 | [key: string]: T;
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50 | }
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51 |
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52 | export interface ParamsDictionary {
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53 | [key: string]: string;
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54 | }
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55 | export type ParamsArray = string[];
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56 | export type Params = ParamsDictionary | ParamsArray;
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57 |
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58 | export interface RequestHandler<
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59 | P = ParamsDictionary,
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60 | ResBody = any,
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61 | ReqBody = any,
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62 | ReqQuery = ParsedQs,
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63 | Locals extends Record<string, any> = Record<string, any>
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64 | > {
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65 | // tslint:disable-next-line callable-types (This is extended from and can't extend from a type alias in ts<2.2)
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66 | (
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67 | req: Request<P, ResBody, ReqBody, ReqQuery, Locals>,
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68 | res: Response<ResBody, Locals>,
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69 | next: NextFunction,
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70 | ): void;
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71 | }
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72 |
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73 | export type ErrorRequestHandler<
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74 | P = ParamsDictionary,
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75 | ResBody = any,
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76 | ReqBody = any,
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77 | ReqQuery = ParsedQs,
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78 | Locals extends Record<string, any> = Record<string, any>
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79 | > = (
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80 | err: any,
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81 | req: Request<P, ResBody, ReqBody, ReqQuery, Locals>,
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82 | res: Response<ResBody, Locals>,
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83 | next: NextFunction,
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84 | ) => void;
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85 |
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86 | export type PathParams = string | RegExp | Array<string | RegExp>;
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87 |
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88 | export type RequestHandlerParams<
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89 | P = ParamsDictionary,
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90 | ResBody = any,
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91 | ReqBody = any,
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92 | ReqQuery = ParsedQs,
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93 | Locals extends Record<string, any> = Record<string, any>
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94 | > =
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95 | | RequestHandler<P, ResBody, ReqBody, ReqQuery, Locals>
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96 | | ErrorRequestHandler<P, ResBody, ReqBody, ReqQuery, Locals>
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97 | | Array<RequestHandler<P> | ErrorRequestHandler<P>>;
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98 |
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99 | type RemoveTail<S extends string, Tail extends string> = S extends `${infer P}${Tail}` ? P : S;
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100 | type GetRouteParameter<S extends string> = RemoveTail<
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101 | RemoveTail<RemoveTail<S, `/${string}`>, `-${string}`>,
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102 | `.${string}`
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103 | >;
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104 |
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105 | // prettier-ignore
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106 | export type RouteParameters<Route extends string> = string extends Route
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107 | ? ParamsDictionary
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108 | : Route extends `${string}(${string}`
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109 | ? ParamsDictionary //TODO: handling for regex parameters
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110 | : Route extends `${string}:${infer Rest}`
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111 | ? (
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112 | GetRouteParameter<Rest> extends never
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113 | ? ParamsDictionary
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114 | : GetRouteParameter<Rest> extends `${infer ParamName}?`
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115 | ? { [P in ParamName]?: string }
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116 | : { [P in GetRouteParameter<Rest>]: string }
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117 | ) &
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118 | (Rest extends `${GetRouteParameter<Rest>}${infer Next}`
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119 | ? RouteParameters<Next> : unknown)
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120 | : {};
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121 |
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122 | export interface IRouterMatcher<
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123 | T,
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124 | Method extends 'all' | 'get' | 'post' | 'put' | 'delete' | 'patch' | 'options' | 'head' = any
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125 | > {
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126 | <
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127 | Route extends string,
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128 | P = RouteParameters<Route>,
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129 | ResBody = any,
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130 | ReqBody = any,
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131 | ReqQuery = ParsedQs,
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132 | Locals extends Record<string, any> = Record<string, any>
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133 | >(
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134 | // tslint:disable-next-line no-unnecessary-generics (it's used as the default type parameter for P)
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135 | path: Route,
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136 | // tslint:disable-next-line no-unnecessary-generics (This generic is meant to be passed explicitly.)
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137 | ...handlers: Array<RequestHandler<P, ResBody, ReqBody, ReqQuery, Locals>>
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138 | ): T;
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139 | <
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140 | Path extends string,
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141 | P = RouteParameters<Path>,
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142 | ResBody = any,
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143 | ReqBody = any,
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144 | ReqQuery = ParsedQs,
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145 | Locals extends Record<string, any> = Record<string, any>
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146 | >(
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147 | // tslint:disable-next-line no-unnecessary-generics (it's used as the default type parameter for P)
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148 | path: Path,
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149 | // tslint:disable-next-line no-unnecessary-generics (This generic is meant to be passed explicitly.)
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150 | ...handlers: Array<RequestHandlerParams<P, ResBody, ReqBody, ReqQuery, Locals>>
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151 | ): T;
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152 | <
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153 | P = ParamsDictionary,
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154 | ResBody = any,
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155 | ReqBody = any,
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156 | ReqQuery = ParsedQs,
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157 | Locals extends Record<string, any> = Record<string, any>
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158 | >(
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159 | path: PathParams,
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160 | // tslint:disable-next-line no-unnecessary-generics (This generic is meant to be passed explicitly.)
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161 | ...handlers: Array<RequestHandler<P, ResBody, ReqBody, ReqQuery, Locals>>
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162 | ): T;
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163 | <
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164 | P = ParamsDictionary,
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165 | ResBody = any,
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166 | ReqBody = any,
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167 | ReqQuery = ParsedQs,
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168 | Locals extends Record<string, any> = Record<string, any>
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169 | >(
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170 | path: PathParams,
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171 | // tslint:disable-next-line no-unnecessary-generics (This generic is meant to be passed explicitly.)
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172 | ...handlers: Array<RequestHandlerParams<P, ResBody, ReqBody, ReqQuery, Locals>>
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173 | ): T;
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174 | (path: PathParams, subApplication: Application): T;
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175 | }
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176 |
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177 | export interface IRouterHandler<T, Route extends string = string> {
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178 | (...handlers: Array<RequestHandler<RouteParameters<Route>>>): T;
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179 | (...handlers: Array<RequestHandlerParams<RouteParameters<Route>>>): T;
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180 | <
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181 | P = RouteParameters<Route>,
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182 | ResBody = any,
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183 | ReqBody = any,
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184 | ReqQuery = ParsedQs,
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185 | Locals extends Record<string, any> = Record<string, any>
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186 | >(
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187 | // tslint:disable-next-line no-unnecessary-generics (This generic is meant to be passed explicitly.)
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188 | ...handlers: Array<RequestHandler<P, ResBody, ReqBody, ReqQuery, Locals>>
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189 | ): T;
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190 | <
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191 | P = RouteParameters<Route>,
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192 | ResBody = any,
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193 | ReqBody = any,
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194 | ReqQuery = ParsedQs,
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195 | Locals extends Record<string, any> = Record<string, any>
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196 | >(
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197 | // tslint:disable-next-line no-unnecessary-generics (This generic is meant to be passed explicitly.)
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198 | ...handlers: Array<RequestHandlerParams<P, ResBody, ReqBody, ReqQuery, Locals>>
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199 | ): T;
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200 | <
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201 | P = ParamsDictionary,
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202 | ResBody = any,
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203 | ReqBody = any,
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204 | ReqQuery = ParsedQs,
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205 | Locals extends Record<string, any> = Record<string, any>
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206 | >(
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207 | // tslint:disable-next-line no-unnecessary-generics (This generic is meant to be passed explicitly.)
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208 | ...handlers: Array<RequestHandler<P, ResBody, ReqBody, ReqQuery, Locals>>
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209 | ): T;
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210 | <
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211 | P = ParamsDictionary,
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212 | ResBody = any,
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213 | ReqBody = any,
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214 | ReqQuery = ParsedQs,
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215 | Locals extends Record<string, any> = Record<string, any>
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216 | >(
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217 | // tslint:disable-next-line no-unnecessary-generics (This generic is meant to be passed explicitly.)
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218 | ...handlers: Array<RequestHandlerParams<P, ResBody, ReqBody, ReqQuery, Locals>>
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219 | ): T;
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220 | }
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221 |
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222 | export interface IRouter extends RequestHandler {
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223 | /**
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224 | * Map the given param placeholder `name`(s) to the given callback(s).
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225 | *
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226 | * Parameter mapping is used to provide pre-conditions to routes
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227 | * which use normalized placeholders. For example a _:user_id_ parameter
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228 | * could automatically load a user's information from the database without
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229 | * any additional code,
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230 | *
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231 | * The callback uses the samesignature as middleware, the only differencing
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232 | * being that the value of the placeholder is passed, in this case the _id_
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233 | * of the user. Once the `next()` function is invoked, just like middleware
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234 | * it will continue on to execute the route, or subsequent parameter functions.
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235 | *
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236 | * app.param('user_id', function(req, res, next, id){
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237 | * User.find(id, function(err, user){
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238 | * if (err) {
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239 | * next(err);
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240 | * } else if (user) {
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241 | * req.user = user;
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242 | * next();
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243 | * } else {
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244 | * next(new Error('failed to load user'));
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245 | * }
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246 | * });
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247 | * });
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248 | */
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249 | param(name: string, handler: RequestParamHandler): this;
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250 |
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251 | /**
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252 | * Alternatively, you can pass only a callback, in which case you have the opportunity to alter the app.param()
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253 | *
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254 | * @deprecated since version 4.11
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255 | */
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256 | param(callback: (name: string, matcher: RegExp) => RequestParamHandler): this;
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257 |
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258 | /**
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259 | * Special-cased "all" method, applying the given route `path`,
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260 | * middleware, and callback to _every_ HTTP method.
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261 | */
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262 | all: IRouterMatcher<this, 'all'>;
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263 | get: IRouterMatcher<this, 'get'>;
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264 | post: IRouterMatcher<this, 'post'>;
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265 | put: IRouterMatcher<this, 'put'>;
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266 | delete: IRouterMatcher<this, 'delete'>;
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267 | patch: IRouterMatcher<this, 'patch'>;
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268 | options: IRouterMatcher<this, 'options'>;
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269 | head: IRouterMatcher<this, 'head'>;
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270 |
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271 | checkout: IRouterMatcher<this>;
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272 | connect: IRouterMatcher<this>;
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273 | copy: IRouterMatcher<this>;
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274 | lock: IRouterMatcher<this>;
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275 | merge: IRouterMatcher<this>;
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276 | mkactivity: IRouterMatcher<this>;
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277 | mkcol: IRouterMatcher<this>;
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278 | move: IRouterMatcher<this>;
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279 | 'm-search': IRouterMatcher<this>;
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280 | notify: IRouterMatcher<this>;
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281 | propfind: IRouterMatcher<this>;
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282 | proppatch: IRouterMatcher<this>;
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283 | purge: IRouterMatcher<this>;
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284 | report: IRouterMatcher<this>;
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285 | search: IRouterMatcher<this>;
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286 | subscribe: IRouterMatcher<this>;
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287 | trace: IRouterMatcher<this>;
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288 | unlock: IRouterMatcher<this>;
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289 | unsubscribe: IRouterMatcher<this>;
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290 |
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291 | use: IRouterHandler<this> & IRouterMatcher<this>;
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292 |
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293 | route<T extends string>(prefix: T): IRoute<T>;
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294 | route(prefix: PathParams): IRoute;
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295 | /**
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296 | * Stack of configured routes
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297 | */
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298 | stack: any[];
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299 | }
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300 |
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301 | export interface IRoute<Route extends string = string> {
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302 | path: string;
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303 | stack: any;
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304 | all: IRouterHandler<this, Route>;
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305 | get: IRouterHandler<this, Route>;
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306 | post: IRouterHandler<this, Route>;
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307 | put: IRouterHandler<this, Route>;
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308 | delete: IRouterHandler<this, Route>;
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309 | patch: IRouterHandler<this, Route>;
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310 | options: IRouterHandler<this, Route>;
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311 | head: IRouterHandler<this, Route>;
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312 |
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313 | checkout: IRouterHandler<this, Route>;
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314 | copy: IRouterHandler<this, Route>;
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315 | lock: IRouterHandler<this, Route>;
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316 | merge: IRouterHandler<this, Route>;
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317 | mkactivity: IRouterHandler<this, Route>;
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318 | mkcol: IRouterHandler<this, Route>;
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319 | move: IRouterHandler<this, Route>;
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320 | 'm-search': IRouterHandler<this, Route>;
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321 | notify: IRouterHandler<this, Route>;
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322 | purge: IRouterHandler<this, Route>;
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323 | report: IRouterHandler<this, Route>;
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324 | search: IRouterHandler<this, Route>;
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325 | subscribe: IRouterHandler<this, Route>;
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326 | trace: IRouterHandler<this, Route>;
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327 | unlock: IRouterHandler<this, Route>;
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328 | unsubscribe: IRouterHandler<this, Route>;
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329 | }
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330 |
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331 | export interface Router extends IRouter {}
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332 |
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333 | export interface CookieOptions {
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334 | maxAge?: number | undefined;
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335 | signed?: boolean | undefined;
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336 | expires?: Date | undefined;
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337 | httpOnly?: boolean | undefined;
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338 | path?: string | undefined;
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339 | domain?: string | undefined;
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340 | secure?: boolean | undefined;
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341 | encode?: ((val: string) => string) | undefined;
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342 | sameSite?: boolean | 'lax' | 'strict' | 'none' | undefined;
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343 | }
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344 |
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345 | export interface ByteRange {
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346 | start: number;
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347 | end: number;
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348 | }
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349 |
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350 | export interface RequestRanges extends RangeParserRanges {}
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351 |
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352 | export type Errback = (err: Error) => void;
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353 |
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354 | /**
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355 | * @param P For most requests, this should be `ParamsDictionary`, but if you're
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356 | * using this in a route handler for a route that uses a `RegExp` or a wildcard
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357 | * `string` path (e.g. `'/user/*'`), then `req.params` will be an array, in
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358 | * which case you should use `ParamsArray` instead.
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359 | *
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360 | * @see https://expressjs.com/en/api.html#req.params
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361 | *
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362 | * @example
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363 | * app.get('/user/:id', (req, res) => res.send(req.params.id)); // implicitly `ParamsDictionary`
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364 | * app.get<ParamsArray>(/user\/(.*)/, (req, res) => res.send(req.params[0]));
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365 | * app.get<ParamsArray>('/user/*', (req, res) => res.send(req.params[0]));
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366 | */
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367 | export interface Request<
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368 | P = ParamsDictionary,
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369 | ResBody = any,
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370 | ReqBody = any,
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371 | ReqQuery = ParsedQs,
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372 | Locals extends Record<string, any> = Record<string, any>
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373 | > extends http.IncomingMessage,
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374 | Express.Request {
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375 | /**
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376 | * Return request header.
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377 | *
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378 | * The `Referrer` header field is special-cased,
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379 | * both `Referrer` and `Referer` are interchangeable.
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380 | *
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381 | * Examples:
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382 | *
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383 | * req.get('Content-Type');
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384 | * // => "text/plain"
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385 | *
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386 | * req.get('content-type');
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387 | * // => "text/plain"
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388 | *
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389 | * req.get('Something');
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390 | * // => undefined
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391 | *
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392 | * Aliased as `req.header()`.
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393 | */
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394 | get(name: 'set-cookie'): string[] | undefined;
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395 | get(name: string): string | undefined;
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396 |
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397 | header(name: 'set-cookie'): string[] | undefined;
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398 | header(name: string): string | undefined;
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399 |
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400 | /**
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401 | * Check if the given `type(s)` is acceptable, returning
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402 | * the best match when true, otherwise `undefined`, in which
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403 | * case you should respond with 406 "Not Acceptable".
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404 | *
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405 | * The `type` value may be a single mime type string
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406 | * such as "application/json", the extension name
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407 | * such as "json", a comma-delimted list such as "json, html, text/plain",
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408 | * or an array `["json", "html", "text/plain"]`. When a list
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409 | * or array is given the _best_ match, if any is returned.
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410 | *
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411 | * Examples:
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412 | *
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413 | * // Accept: text/html
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414 | * req.accepts('html');
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415 | * // => "html"
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416 | *
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417 | * // Accept: text/*, application/json
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418 | * req.accepts('html');
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419 | * // => "html"
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420 | * req.accepts('text/html');
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421 | * // => "text/html"
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422 | * req.accepts('json, text');
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423 | * // => "json"
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424 | * req.accepts('application/json');
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425 | * // => "application/json"
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426 | *
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427 | * // Accept: text/*, application/json
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428 | * req.accepts('image/png');
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429 | * req.accepts('png');
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430 | * // => undefined
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431 | *
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432 | * // Accept: text/*;q=.5, application/json
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433 | * req.accepts(['html', 'json']);
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434 | * req.accepts('html, json');
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435 | * // => "json"
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436 | */
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437 | accepts(): string[];
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438 | accepts(type: string): string | false;
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439 | accepts(type: string[]): string | false;
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440 | accepts(...type: string[]): string | false;
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441 |
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442 | /**
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443 | * Returns the first accepted charset of the specified character sets,
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444 | * based on the request's Accept-Charset HTTP header field.
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445 | * If none of the specified charsets is accepted, returns false.
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446 | *
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447 | * For more information, or if you have issues or concerns, see accepts.
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448 | */
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449 | acceptsCharsets(): string[];
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450 | acceptsCharsets(charset: string): string | false;
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451 | acceptsCharsets(charset: string[]): string | false;
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452 | acceptsCharsets(...charset: string[]): string | false;
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453 |
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454 | /**
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455 | * Returns the first accepted encoding of the specified encodings,
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456 | * based on the request's Accept-Encoding HTTP header field.
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457 | * If none of the specified encodings is accepted, returns false.
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458 | *
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459 | * For more information, or if you have issues or concerns, see accepts.
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460 | */
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461 | acceptsEncodings(): string[];
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462 | acceptsEncodings(encoding: string): string | false;
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463 | acceptsEncodings(encoding: string[]): string | false;
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464 | acceptsEncodings(...encoding: string[]): string | false;
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465 |
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466 | /**
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467 | * Returns the first accepted language of the specified languages,
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468 | * based on the request's Accept-Language HTTP header field.
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469 | * If none of the specified languages is accepted, returns false.
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470 | *
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471 | * For more information, or if you have issues or concerns, see accepts.
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472 | */
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473 | acceptsLanguages(): string[];
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474 | acceptsLanguages(lang: string): string | false;
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475 | acceptsLanguages(lang: string[]): string | false;
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476 | acceptsLanguages(...lang: string[]): string | false;
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477 |
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478 | /**
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479 | * Parse Range header field, capping to the given `size`.
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480 | *
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481 | * Unspecified ranges such as "0-" require knowledge of your resource length. In
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482 | * the case of a byte range this is of course the total number of bytes.
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483 | * If the Range header field is not given `undefined` is returned.
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484 | * If the Range header field is given, return value is a result of range-parser.
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485 | * See more ./types/range-parser/index.d.ts
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486 | *
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487 | * NOTE: remember that ranges are inclusive, so for example "Range: users=0-3"
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488 | * should respond with 4 users when available, not 3.
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489 | *
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490 | */
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491 | range(size: number, options?: RangeParserOptions): RangeParserRanges | RangeParserResult | undefined;
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492 |
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493 | /**
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494 | * Return an array of Accepted media types
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495 | * ordered from highest quality to lowest.
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496 | */
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497 | accepted: MediaType[];
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498 |
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499 | /**
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500 | * @deprecated since 4.11 Use either req.params, req.body or req.query, as applicable.
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501 | *
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502 | * Return the value of param `name` when present or `defaultValue`.
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503 | *
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504 | * - Checks route placeholders, ex: _/user/:id_
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505 | * - Checks body params, ex: id=12, {"id":12}
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506 | * - Checks query string params, ex: ?id=12
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507 | *
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508 | * To utilize request bodies, `req.body`
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509 | * should be an object. This can be done by using
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510 | * the `connect.bodyParser()` middleware.
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511 | */
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512 | param(name: string, defaultValue?: any): string;
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513 |
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514 | /**
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515 | * Check if the incoming request contains the "Content-Type"
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516 | * header field, and it contains the give mime `type`.
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517 | *
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518 | * Examples:
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519 | *
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520 | * // With Content-Type: text/html; charset=utf-8
|
521 | * req.is('html');
|
522 | * req.is('text/html');
|
523 | * req.is('text/*');
|
524 | * // => true
|
525 | *
|
526 | * // When Content-Type is application/json
|
527 | * req.is('json');
|
528 | * req.is('application/json');
|
529 | * req.is('application/*');
|
530 | * // => true
|
531 | *
|
532 | * req.is('html');
|
533 | * // => false
|
534 | */
|
535 | is(type: string | string[]): string | false | null;
|
536 |
|
537 | /**
|
538 | * Return the protocol string "http" or "https"
|
539 | * when requested with TLS. When the "trust proxy"
|
540 | * setting is enabled the "X-Forwarded-Proto" header
|
541 | * field will be trusted. If you're running behind
|
542 | * a reverse proxy that supplies https for you this
|
543 | * may be enabled.
|
544 | */
|
545 | protocol: string;
|
546 |
|
547 | /**
|
548 | * Short-hand for:
|
549 | *
|
550 | * req.protocol == 'https'
|
551 | */
|
552 | secure: boolean;
|
553 |
|
554 | /**
|
555 | * Return the remote address, or when
|
556 | * "trust proxy" is `true` return
|
557 | * the upstream addr.
|
558 | */
|
559 | ip: string;
|
560 |
|
561 | /**
|
562 | * When "trust proxy" is `true`, parse
|
563 | * the "X-Forwarded-For" ip address list.
|
564 | *
|
565 | * For example if the value were "client, proxy1, proxy2"
|
566 | * you would receive the array `["client", "proxy1", "proxy2"]`
|
567 | * where "proxy2" is the furthest down-stream.
|
568 | */
|
569 | ips: string[];
|
570 |
|
571 | /**
|
572 | * Return subdomains as an array.
|
573 | *
|
574 | * Subdomains are the dot-separated parts of the host before the main domain of
|
575 | * the app. By default, the domain of the app is assumed to be the last two
|
576 | * parts of the host. This can be changed by setting "subdomain offset".
|
577 | *
|
578 | * For example, if the domain is "tobi.ferrets.example.com":
|
579 | * If "subdomain offset" is not set, req.subdomains is `["ferrets", "tobi"]`.
|
580 | * If "subdomain offset" is 3, req.subdomains is `["tobi"]`.
|
581 | */
|
582 | subdomains: string[];
|
583 |
|
584 | /**
|
585 | * Short-hand for `url.parse(req.url).pathname`.
|
586 | */
|
587 | path: string;
|
588 |
|
589 | /**
|
590 | * Parse the "Host" header field hostname.
|
591 | */
|
592 | hostname: string;
|
593 |
|
594 | /**
|
595 | * @deprecated Use hostname instead.
|
596 | */
|
597 | host: string;
|
598 |
|
599 | /**
|
600 | * Check if the request is fresh, aka
|
601 | * Last-Modified and/or the ETag
|
602 | * still match.
|
603 | */
|
604 | fresh: boolean;
|
605 |
|
606 | /**
|
607 | * Check if the request is stale, aka
|
608 | * "Last-Modified" and / or the "ETag" for the
|
609 | * resource has changed.
|
610 | */
|
611 | stale: boolean;
|
612 |
|
613 | /**
|
614 | * Check if the request was an _XMLHttpRequest_.
|
615 | */
|
616 | xhr: boolean;
|
617 |
|
618 | //body: { username: string; password: string; remember: boolean; title: string; };
|
619 | body: ReqBody;
|
620 |
|
621 | //cookies: { string; remember: boolean; };
|
622 | cookies: any;
|
623 |
|
624 | method: string;
|
625 |
|
626 | params: P;
|
627 |
|
628 | query: ReqQuery;
|
629 |
|
630 | route: any;
|
631 |
|
632 | signedCookies: any;
|
633 |
|
634 | originalUrl: string;
|
635 |
|
636 | url: string;
|
637 |
|
638 | baseUrl: string;
|
639 |
|
640 | app: Application;
|
641 |
|
642 | /**
|
643 | * After middleware.init executed, Request will contain res and next properties
|
644 | * See: express/lib/middleware/init.js
|
645 | */
|
646 | res?: Response<ResBody, Locals> | undefined;
|
647 | next?: NextFunction | undefined;
|
648 | }
|
649 |
|
650 | export interface MediaType {
|
651 | value: string;
|
652 | quality: number;
|
653 | type: string;
|
654 | subtype: string;
|
655 | }
|
656 |
|
657 | export type Send<ResBody = any, T = Response<ResBody>> = (body?: ResBody) => T;
|
658 |
|
659 | export interface Response<
|
660 | ResBody = any,
|
661 | Locals extends Record<string, any> = Record<string, any>,
|
662 | StatusCode extends number = number
|
663 | > extends http.ServerResponse,
|
664 | Express.Response {
|
665 | /**
|
666 | * Set status `code`.
|
667 | */
|
668 | status(code: StatusCode): this;
|
669 |
|
670 | /**
|
671 | * Set the response HTTP status code to `statusCode` and send its string representation as the response body.
|
672 | * @link http://expressjs.com/4x/api.html#res.sendStatus
|
673 | *
|
674 | * Examples:
|
675 | *
|
676 | * res.sendStatus(200); // equivalent to res.status(200).send('OK')
|
677 | * res.sendStatus(403); // equivalent to res.status(403).send('Forbidden')
|
678 | * res.sendStatus(404); // equivalent to res.status(404).send('Not Found')
|
679 | * res.sendStatus(500); // equivalent to res.status(500).send('Internal Server Error')
|
680 | */
|
681 | sendStatus(code: StatusCode): this;
|
682 |
|
683 | /**
|
684 | * Set Link header field with the given `links`.
|
685 | *
|
686 | * Examples:
|
687 | *
|
688 | * res.links({
|
689 | * next: 'http://api.example.com/users?page=2',
|
690 | * last: 'http://api.example.com/users?page=5'
|
691 | * });
|
692 | */
|
693 | links(links: any): this;
|
694 |
|
695 | /**
|
696 | * Send a response.
|
697 | *
|
698 | * Examples:
|
699 | *
|
700 | * res.send(new Buffer('wahoo'));
|
701 | * res.send({ some: 'json' });
|
702 | * res.send('<p>some html</p>');
|
703 | * res.status(404).send('Sorry, cant find that');
|
704 | */
|
705 | send: Send<ResBody, this>;
|
706 |
|
707 | /**
|
708 | * Send JSON response.
|
709 | *
|
710 | * Examples:
|
711 | *
|
712 | * res.json(null);
|
713 | * res.json({ user: 'tj' });
|
714 | * res.status(500).json('oh noes!');
|
715 | * res.status(404).json('I dont have that');
|
716 | */
|
717 | json: Send<ResBody, this>;
|
718 |
|
719 | /**
|
720 | * Send JSON response with JSONP callback support.
|
721 | *
|
722 | * Examples:
|
723 | *
|
724 | * res.jsonp(null);
|
725 | * res.jsonp({ user: 'tj' });
|
726 | * res.status(500).jsonp('oh noes!');
|
727 | * res.status(404).jsonp('I dont have that');
|
728 | */
|
729 | jsonp: Send<ResBody, this>;
|
730 |
|
731 | /**
|
732 | * Transfer the file at the given `path`.
|
733 | *
|
734 | * Automatically sets the _Content-Type_ response header field.
|
735 | * The callback `fn(err)` is invoked when the transfer is complete
|
736 | * or when an error occurs. Be sure to check `res.headersSent`
|
737 | * if you wish to attempt responding, as the header and some data
|
738 | * may have already been transferred.
|
739 | *
|
740 | * Options:
|
741 | *
|
742 | * - `maxAge` defaulting to 0 (can be string converted by `ms`)
|
743 | * - `root` root directory for relative filenames
|
744 | * - `headers` object of headers to serve with file
|
745 | * - `dotfiles` serve dotfiles, defaulting to false; can be `"allow"` to send them
|
746 | *
|
747 | * Other options are passed along to `send`.
|
748 | *
|
749 | * Examples:
|
750 | *
|
751 | * The following example illustrates how `res.sendFile()` may
|
752 | * be used as an alternative for the `static()` middleware for
|
753 | * dynamic situations. The code backing `res.sendFile()` is actually
|
754 | * the same code, so HTTP cache support etc is identical.
|
755 | *
|
756 | * app.get('/user/:uid/photos/:file', function(req, res){
|
757 | * var uid = req.params.uid
|
758 | * , file = req.params.file;
|
759 | *
|
760 | * req.user.mayViewFilesFrom(uid, function(yes){
|
761 | * if (yes) {
|
762 | * res.sendFile('/uploads/' + uid + '/' + file);
|
763 | * } else {
|
764 | * res.send(403, 'Sorry! you cant see that.');
|
765 | * }
|
766 | * });
|
767 | * });
|
768 | *
|
769 | * @api public
|
770 | */
|
771 | sendFile(path: string, fn?: Errback): void;
|
772 | sendFile(path: string, options: any, fn?: Errback): void;
|
773 |
|
774 | /**
|
775 | * @deprecated Use sendFile instead.
|
776 | */
|
777 | sendfile(path: string): void;
|
778 | /**
|
779 | * @deprecated Use sendFile instead.
|
780 | */
|
781 | sendfile(path: string, options: any): void;
|
782 | /**
|
783 | * @deprecated Use sendFile instead.
|
784 | */
|
785 | sendfile(path: string, fn: Errback): void;
|
786 | /**
|
787 | * @deprecated Use sendFile instead.
|
788 | */
|
789 | sendfile(path: string, options: any, fn: Errback): void;
|
790 |
|
791 | /**
|
792 | * Transfer the file at the given `path` as an attachment.
|
793 | *
|
794 | * Optionally providing an alternate attachment `filename`,
|
795 | * and optional callback `fn(err)`. The callback is invoked
|
796 | * when the data transfer is complete, or when an error has
|
797 | * ocurred. Be sure to check `res.headersSent` if you plan to respond.
|
798 | *
|
799 | * The optional options argument passes through to the underlying
|
800 | * res.sendFile() call, and takes the exact same parameters.
|
801 | *
|
802 | * This method uses `res.sendfile()`.
|
803 | */
|
804 | download(path: string, fn?: Errback): void;
|
805 | download(path: string, filename: string, fn?: Errback): void;
|
806 | download(path: string, filename: string, options: any, fn?: Errback): void;
|
807 |
|
808 | /**
|
809 | * Set _Content-Type_ response header with `type` through `mime.lookup()`
|
810 | * when it does not contain "/", or set the Content-Type to `type` otherwise.
|
811 | *
|
812 | * Examples:
|
813 | *
|
814 | * res.type('.html');
|
815 | * res.type('html');
|
816 | * res.type('json');
|
817 | * res.type('application/json');
|
818 | * res.type('png');
|
819 | */
|
820 | contentType(type: string): this;
|
821 |
|
822 | /**
|
823 | * Set _Content-Type_ response header with `type` through `mime.lookup()`
|
824 | * when it does not contain "/", or set the Content-Type to `type` otherwise.
|
825 | *
|
826 | * Examples:
|
827 | *
|
828 | * res.type('.html');
|
829 | * res.type('html');
|
830 | * res.type('json');
|
831 | * res.type('application/json');
|
832 | * res.type('png');
|
833 | */
|
834 | type(type: string): this;
|
835 |
|
836 | /**
|
837 | * Respond to the Acceptable formats using an `obj`
|
838 | * of mime-type callbacks.
|
839 | *
|
840 | * This method uses `req.accepted`, an array of
|
841 | * acceptable types ordered by their quality values.
|
842 | * When "Accept" is not present the _first_ callback
|
843 | * is invoked, otherwise the first match is used. When
|
844 | * no match is performed the server responds with
|
845 | * 406 "Not Acceptable".
|
846 | *
|
847 | * Content-Type is set for you, however if you choose
|
848 | * you may alter this within the callback using `res.type()`
|
849 | * or `res.set('Content-Type', ...)`.
|
850 | *
|
851 | * res.format({
|
852 | * 'text/plain': function(){
|
853 | * res.send('hey');
|
854 | * },
|
855 | *
|
856 | * 'text/html': function(){
|
857 | * res.send('<p>hey</p>');
|
858 | * },
|
859 | *
|
860 | * 'appliation/json': function(){
|
861 | * res.send({ message: 'hey' });
|
862 | * }
|
863 | * });
|
864 | *
|
865 | * In addition to canonicalized MIME types you may
|
866 | * also use extnames mapped to these types:
|
867 | *
|
868 | * res.format({
|
869 | * text: function(){
|
870 | * res.send('hey');
|
871 | * },
|
872 | *
|
873 | * html: function(){
|
874 | * res.send('<p>hey</p>');
|
875 | * },
|
876 | *
|
877 | * json: function(){
|
878 | * res.send({ message: 'hey' });
|
879 | * }
|
880 | * });
|
881 | *
|
882 | * By default Express passes an `Error`
|
883 | * with a `.status` of 406 to `next(err)`
|
884 | * if a match is not made. If you provide
|
885 | * a `.default` callback it will be invoked
|
886 | * instead.
|
887 | */
|
888 | format(obj: any): this;
|
889 |
|
890 | /**
|
891 | * Set _Content-Disposition_ header to _attachment_ with optional `filename`.
|
892 | */
|
893 | attachment(filename?: string): this;
|
894 |
|
895 | /**
|
896 | * Set header `field` to `val`, or pass
|
897 | * an object of header fields.
|
898 | *
|
899 | * Examples:
|
900 | *
|
901 | * res.set('Foo', ['bar', 'baz']);
|
902 | * res.set('Accept', 'application/json');
|
903 | * res.set({ Accept: 'text/plain', 'X-API-Key': 'tobi' });
|
904 | *
|
905 | * Aliased as `res.header()`.
|
906 | */
|
907 | set(field: any): this;
|
908 | set(field: string, value?: string | string[]): this;
|
909 |
|
910 | header(field: any): this;
|
911 | header(field: string, value?: string | string[]): this;
|
912 |
|
913 | // Property indicating if HTTP headers has been sent for the response.
|
914 | headersSent: boolean;
|
915 |
|
916 | /** Get value for header `field`. */
|
917 | get(field: string): string|undefined;
|
918 |
|
919 | /** Clear cookie `name`. */
|
920 | clearCookie(name: string, options?: CookieOptions): this;
|
921 |
|
922 | /**
|
923 | * Set cookie `name` to `val`, with the given `options`.
|
924 | *
|
925 | * Options:
|
926 | *
|
927 | * - `maxAge` max-age in milliseconds, converted to `expires`
|
928 | * - `signed` sign the cookie
|
929 | * - `path` defaults to "/"
|
930 | *
|
931 | * Examples:
|
932 | *
|
933 | * // "Remember Me" for 15 minutes
|
934 | * res.cookie('rememberme', '1', { expires: new Date(Date.now() + 900000), httpOnly: true });
|
935 | *
|
936 | * // save as above
|
937 | * res.cookie('rememberme', '1', { maxAge: 900000, httpOnly: true })
|
938 | */
|
939 | cookie(name: string, val: string, options: CookieOptions): this;
|
940 | cookie(name: string, val: any, options: CookieOptions): this;
|
941 | cookie(name: string, val: any): this;
|
942 |
|
943 | /**
|
944 | * Set the location header to `url`.
|
945 | *
|
946 | * The given `url` can also be the name of a mapped url, for
|
947 | * example by default express supports "back" which redirects
|
948 | * to the _Referrer_ or _Referer_ headers or "/".
|
949 | *
|
950 | * Examples:
|
951 | *
|
952 | * res.location('/foo/bar').;
|
953 | * res.location('http://example.com');
|
954 | * res.location('../login'); // /blog/post/1 -> /blog/login
|
955 | *
|
956 | * Mounting:
|
957 | *
|
958 | * When an application is mounted and `res.location()`
|
959 | * is given a path that does _not_ lead with "/" it becomes
|
960 | * relative to the mount-point. For example if the application
|
961 | * is mounted at "/blog", the following would become "/blog/login".
|
962 | *
|
963 | * res.location('login');
|
964 | *
|
965 | * While the leading slash would result in a location of "/login":
|
966 | *
|
967 | * res.location('/login');
|
968 | */
|
969 | location(url: string): this;
|
970 |
|
971 | /**
|
972 | * Redirect to the given `url` with optional response `status`
|
973 | * defaulting to 302.
|
974 | *
|
975 | * The resulting `url` is determined by `res.location()`, so
|
976 | * it will play nicely with mounted apps, relative paths,
|
977 | * `"back"` etc.
|
978 | *
|
979 | * Examples:
|
980 | *
|
981 | * res.redirect('back');
|
982 | * res.redirect('/foo/bar');
|
983 | * res.redirect('http://example.com');
|
984 | * res.redirect(301, 'http://example.com');
|
985 | * res.redirect('http://example.com', 301);
|
986 | * res.redirect('../login'); // /blog/post/1 -> /blog/login
|
987 | */
|
988 | redirect(url: string): void;
|
989 | redirect(status: number, url: string): void;
|
990 | /** @deprecated use res.redirect(status, url) instead */
|
991 | redirect(url: string, status: number): void;
|
992 |
|
993 | /**
|
994 | * Render `view` with the given `options` and optional callback `fn`.
|
995 | * When a callback function is given a response will _not_ be made
|
996 | * automatically, otherwise a response of _200_ and _text/html_ is given.
|
997 | *
|
998 | * Options:
|
999 | *
|
1000 | * - `cache` boolean hinting to the engine it should cache
|
1001 | * - `filename` filename of the view being rendered
|
1002 | */
|
1003 | render(view: string, options?: object, callback?: (err: Error, html: string) => void): void;
|
1004 | render(view: string, callback?: (err: Error, html: string) => void): void;
|
1005 |
|
1006 | locals: Locals;
|
1007 |
|
1008 | charset: string;
|
1009 |
|
1010 | /**
|
1011 | * Adds the field to the Vary response header, if it is not there already.
|
1012 | * Examples:
|
1013 | *
|
1014 | * res.vary('User-Agent').render('docs');
|
1015 | *
|
1016 | */
|
1017 | vary(field: string): this;
|
1018 |
|
1019 | app: Application;
|
1020 |
|
1021 | /**
|
1022 | * Appends the specified value to the HTTP response header field.
|
1023 | * If the header is not already set, it creates the header with the specified value.
|
1024 | * The value parameter can be a string or an array.
|
1025 | *
|
1026 | * Note: calling res.set() after res.append() will reset the previously-set header value.
|
1027 | *
|
1028 | * @since 4.11.0
|
1029 | */
|
1030 | append(field: string, value?: string[] | string): this;
|
1031 |
|
1032 | /**
|
1033 | * After middleware.init executed, Response will contain req property
|
1034 | * See: express/lib/middleware/init.js
|
1035 | */
|
1036 | req: Request;
|
1037 | }
|
1038 |
|
1039 | export interface Handler extends RequestHandler {}
|
1040 |
|
1041 | export type RequestParamHandler = (req: Request, res: Response, next: NextFunction, value: any, name: string) => any;
|
1042 |
|
1043 | export type ApplicationRequestHandler<T> = IRouterHandler<T> &
|
1044 | IRouterMatcher<T> &
|
1045 | ((...handlers: RequestHandlerParams[]) => T);
|
1046 |
|
1047 | export interface Application<
|
1048 | Locals extends Record<string, any> = Record<string, any>
|
1049 | > extends EventEmitter, IRouter, Express.Application {
|
1050 | /**
|
1051 | * Express instance itself is a request handler, which could be invoked without
|
1052 | * third argument.
|
1053 | */
|
1054 | (req: Request | http.IncomingMessage, res: Response | http.ServerResponse): any;
|
1055 |
|
1056 | /**
|
1057 | * Initialize the server.
|
1058 | *
|
1059 | * - setup default configuration
|
1060 | * - setup default middleware
|
1061 | * - setup route reflection methods
|
1062 | */
|
1063 | init(): void;
|
1064 |
|
1065 | /**
|
1066 | * Initialize application configuration.
|
1067 | */
|
1068 | defaultConfiguration(): void;
|
1069 |
|
1070 | /**
|
1071 | * Register the given template engine callback `fn`
|
1072 | * as `ext`.
|
1073 | *
|
1074 | * By default will `require()` the engine based on the
|
1075 | * file extension. For example if you try to render
|
1076 | * a "foo.jade" file Express will invoke the following internally:
|
1077 | *
|
1078 | * app.engine('jade', require('jade').__express);
|
1079 | *
|
1080 | * For engines that do not provide `.__express` out of the box,
|
1081 | * or if you wish to "map" a different extension to the template engine
|
1082 | * you may use this method. For example mapping the EJS template engine to
|
1083 | * ".html" files:
|
1084 | *
|
1085 | * app.engine('html', require('ejs').renderFile);
|
1086 | *
|
1087 | * In this case EJS provides a `.renderFile()` method with
|
1088 | * the same signature that Express expects: `(path, options, callback)`,
|
1089 | * though note that it aliases this method as `ejs.__express` internally
|
1090 | * so if you're using ".ejs" extensions you dont need to do anything.
|
1091 | *
|
1092 | * Some template engines do not follow this convention, the
|
1093 | * [Consolidate.js](https://github.com/visionmedia/consolidate.js)
|
1094 | * library was created to map all of node's popular template
|
1095 | * engines to follow this convention, thus allowing them to
|
1096 | * work seamlessly within Express.
|
1097 | */
|
1098 | engine(
|
1099 | ext: string,
|
1100 | fn: (path: string, options: object, callback: (e: any, rendered?: string) => void) => void,
|
1101 | ): this;
|
1102 |
|
1103 | /**
|
1104 | * Assign `setting` to `val`, or return `setting`'s value.
|
1105 | *
|
1106 | * app.set('foo', 'bar');
|
1107 | * app.get('foo');
|
1108 | * // => "bar"
|
1109 | * app.set('foo', ['bar', 'baz']);
|
1110 | * app.get('foo');
|
1111 | * // => ["bar", "baz"]
|
1112 | *
|
1113 | * Mounted servers inherit their parent server's settings.
|
1114 | */
|
1115 | set(setting: string, val: any): this;
|
1116 | get: ((name: string) => any) & IRouterMatcher<this>;
|
1117 |
|
1118 | param(name: string | string[], handler: RequestParamHandler): this;
|
1119 |
|
1120 | /**
|
1121 | * Alternatively, you can pass only a callback, in which case you have the opportunity to alter the app.param()
|
1122 | *
|
1123 | * @deprecated since version 4.11
|
1124 | */
|
1125 | param(callback: (name: string, matcher: RegExp) => RequestParamHandler): this;
|
1126 |
|
1127 | /**
|
1128 | * Return the app's absolute pathname
|
1129 | * based on the parent(s) that have
|
1130 | * mounted it.
|
1131 | *
|
1132 | * For example if the application was
|
1133 | * mounted as "/admin", which itself
|
1134 | * was mounted as "/blog" then the
|
1135 | * return value would be "/blog/admin".
|
1136 | */
|
1137 | path(): string;
|
1138 |
|
1139 | /**
|
1140 | * Check if `setting` is enabled (truthy).
|
1141 | *
|
1142 | * app.enabled('foo')
|
1143 | * // => false
|
1144 | *
|
1145 | * app.enable('foo')
|
1146 | * app.enabled('foo')
|
1147 | * // => true
|
1148 | */
|
1149 | enabled(setting: string): boolean;
|
1150 |
|
1151 | /**
|
1152 | * Check if `setting` is disabled.
|
1153 | *
|
1154 | * app.disabled('foo')
|
1155 | * // => true
|
1156 | *
|
1157 | * app.enable('foo')
|
1158 | * app.disabled('foo')
|
1159 | * // => false
|
1160 | */
|
1161 | disabled(setting: string): boolean;
|
1162 |
|
1163 | /** Enable `setting`. */
|
1164 | enable(setting: string): this;
|
1165 |
|
1166 | /** Disable `setting`. */
|
1167 | disable(setting: string): this;
|
1168 |
|
1169 | /**
|
1170 | * Render the given view `name` name with `options`
|
1171 | * and a callback accepting an error and the
|
1172 | * rendered template string.
|
1173 | *
|
1174 | * Example:
|
1175 | *
|
1176 | * app.render('email', { name: 'Tobi' }, function(err, html){
|
1177 | * // ...
|
1178 | * })
|
1179 | */
|
1180 | render(name: string, options?: object, callback?: (err: Error, html: string) => void): void;
|
1181 | render(name: string, callback: (err: Error, html: string) => void): void;
|
1182 |
|
1183 | /**
|
1184 | * Listen for connections.
|
1185 | *
|
1186 | * A node `http.Server` is returned, with this
|
1187 | * application (which is a `Function`) as its
|
1188 | * callback. If you wish to create both an HTTP
|
1189 | * and HTTPS server you may do so with the "http"
|
1190 | * and "https" modules as shown here:
|
1191 | *
|
1192 | * var http = require('http')
|
1193 | * , https = require('https')
|
1194 | * , express = require('express')
|
1195 | * , app = express();
|
1196 | *
|
1197 | * http.createServer(app).listen(80);
|
1198 | * https.createServer({ ... }, app).listen(443);
|
1199 | */
|
1200 | listen(port: number, hostname: string, backlog: number, callback?: () => void): http.Server;
|
1201 | listen(port: number, hostname: string, callback?: () => void): http.Server;
|
1202 | listen(port: number, callback?: () => void): http.Server;
|
1203 | listen(callback?: () => void): http.Server;
|
1204 | listen(path: string, callback?: () => void): http.Server;
|
1205 | listen(handle: any, listeningListener?: () => void): http.Server;
|
1206 |
|
1207 | router: string;
|
1208 |
|
1209 | settings: any;
|
1210 |
|
1211 | resource: any;
|
1212 |
|
1213 | map: any;
|
1214 |
|
1215 | locals: Locals;
|
1216 |
|
1217 | /**
|
1218 | * The app.routes object houses all of the routes defined mapped by the
|
1219 | * associated HTTP verb. This object may be used for introspection
|
1220 | * capabilities, for example Express uses this internally not only for
|
1221 | * routing but to provide default OPTIONS behaviour unless app.options()
|
1222 | * is used. Your application or framework may also remove routes by
|
1223 | * simply by removing them from this object.
|
1224 | */
|
1225 | routes: any;
|
1226 |
|
1227 | /**
|
1228 | * Used to get all registered routes in Express Application
|
1229 | */
|
1230 | _router: any;
|
1231 |
|
1232 | use: ApplicationRequestHandler<this>;
|
1233 |
|
1234 | /**
|
1235 | * The mount event is fired on a sub-app, when it is mounted on a parent app.
|
1236 | * The parent app is passed to the callback function.
|
1237 | *
|
1238 | * NOTE:
|
1239 | * Sub-apps will:
|
1240 | * - Not inherit the value of settings that have a default value. You must set the value in the sub-app.
|
1241 | * - Inherit the value of settings with no default value.
|
1242 | */
|
1243 | on: (event: string, callback: (parent: Application) => void) => this;
|
1244 |
|
1245 | /**
|
1246 | * The app.mountpath property contains one or more path patterns on which a sub-app was mounted.
|
1247 | */
|
1248 | mountpath: string | string[];
|
1249 | }
|
1250 |
|
1251 | export interface Express extends Application {
|
1252 | request: Request;
|
1253 | response: Response;
|
1254 | }
|