1 | /**
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2 | * This file is part of the @egodigital/egoose distribution.
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3 | * Copyright (c) e.GO Digital GmbH, Aachen, Germany (https://www.e-go-digital.com/)
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4 | *
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5 | * @egodigital/egoose is free software: you can redistribute it and/or modify
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6 | * it under the terms of the GNU Lesser General Public License as
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7 | * published by the Free Software Foundation, version 3.
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8 | *
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9 | * @egodigital/egoose is distributed in the hope that it will be useful, but
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10 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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12 | * Lesser General Public License for more details.
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13 | *
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14 | * You should have received a copy of the GNU Lesser General Public License
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15 | * along with this program. If not, see <http://www.gnu.org/licenses/>.
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16 | */
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17 | import { StatisticProvider, StatisticResultRow } from '../statistics/index';
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18 | import * as express from 'express';
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19 | /**
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20 | * Options for 'registerStatisticsEndpoint()' function.
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21 | */
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22 | export interface RegisterStatisticsEndpointOptions {
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23 | /**
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24 | * A custom function that is invoked AFTER a request.
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25 | *
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26 | * @param {any} err The error (if occurred).
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27 | * @param {StatisticApiContext} context The context.
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28 | */
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29 | afterRequest?: (err: any, context: StatisticApiContext) => any;
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30 | /**
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31 | * A function that checks if a request is authorized to access the endpoint or not.
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32 | *
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33 | * @param {StatisticApiContext} context The context.
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34 | *
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35 | * @return {boolean|PromiseLike<boolean>} The result that indicates if request is authorized or not.
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36 | */
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37 | authorizer?: (context: StatisticApiContext) => boolean | PromiseLike<boolean>;
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38 | /**
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39 | * A custom function that is invoked BEFORE a request is handled.
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40 | *
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41 | * @param {StatisticApiContext} context The context.
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42 | */
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43 | beforeRequest?: (context: StatisticApiContext) => any;
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44 | /**
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45 | * A function that detects a statistic provider by name.
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46 | */
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47 | providerDetector: StatisticProviderDetector;
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48 | /**
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49 | * The custom name of API root.
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50 | */
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51 | rootName?: string;
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52 | /**
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53 | * A custom response handler.
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54 | *
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55 | * @param {StatisticProviderApiResult} result The result to handle.
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56 | * @param {StatisticApiContext} context The context.
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57 | *
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58 | * @return {express.Response|PromiseLike<express.Response>} The (new) response context.
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59 | */
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60 | responseHandler?: (result: StatisticProviderApiResult, context: StatisticApiContext) => express.Response | PromiseLike<express.Response>;
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61 | }
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62 | /**
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63 | * An statistic API request context.
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64 | */
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65 | export interface StatisticApiContext {
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66 | /**
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67 | * The HTTP request context.
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68 | */
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69 | readonly request: express.Request;
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70 | /**
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71 | * The HTTP response context.
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72 | */
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73 | readonly response: express.Response;
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74 | /**
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75 | * Gets or sets a value for the whole execution chain.
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76 | */
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77 | value?: any;
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78 | }
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79 | /**
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80 | * A result of statistic end point call.
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81 | */
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82 | export interface StatisticProviderApiResult {
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83 | /**
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84 | * Indicates if there are more rows or not.
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85 | */
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86 | hasMore: boolean;
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87 | /**
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88 | * The zero based offset.
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89 | */
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90 | offset: number;
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91 | /**
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92 | * The list of rows.
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93 | */
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94 | rows: StatisticResultRow[];
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95 | /**
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96 | * The total number of rows.
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97 | */
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98 | totalCount: number;
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99 | }
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100 | /**
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101 | * A function that detects a statistic provider by name.
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102 | *
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103 | * @param {string} name The name of the provider, in lower case letters.
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104 | * @param {StatisticApiContext} context The context.
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105 | *
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106 | * @return {StatisticProviderDetectorResult|PromiseLike<StatisticProviderDetectorResult>} The result.
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107 | */
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108 | export declare type StatisticProviderDetector = (name: string, context: StatisticApiContext) => StatisticProviderDetectorResult | PromiseLike<StatisticProviderDetectorResult>;
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109 | /**
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110 | * The result of a statistic provider detection function.
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111 | */
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112 | export declare type StatisticProviderDetectorResult = StatisticProvider | false;
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113 | /**
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114 | * Registers an API endpoint for providing statistics.
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115 | *
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116 | * @param {express.Express | express.Router} hostOrRouter The host or router.
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117 | * @param {RegisterStatisticsEndpointOptions} opts The options for the registration.
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118 | */
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119 | export declare function registerStatisticsEndpoint(hostOrRouter: express.Express | express.Router, opts: RegisterStatisticsEndpointOptions): void;
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