1 | import * as bodyParser from 'body-parser';
|
2 | import * as express from 'express';
|
3 | import {response, IResponse} from './tools';
|
4 |
|
5 | export interface ICheckRequiredParams {
|
6 | req: any;
|
7 | context: string;
|
8 | required: Array<string>;
|
9 | }
|
10 |
|
11 | export interface IApi {
|
12 | route?: string;
|
13 | method?: string;
|
14 | instance?: any;
|
15 | get?: any;
|
16 | execute?: any;
|
17 | executeFirst?: any;
|
18 | dependencies?: any;
|
19 | context: string;
|
20 | send?: any;
|
21 | res?: any;
|
22 | req?: any;
|
23 | allowCors?: boolean;
|
24 | required?: Array<string>;
|
25 | swaggerFilePath?: string;
|
26 | }
|
27 |
|
28 | export const checkRequiredParams = (r: ICheckRequiredParams): IResponse => {
|
29 | try {
|
30 | if (r.required && r.required.length) {
|
31 | const _body = Object.keys(r.req.body),
|
32 | _params = Object.keys(r.req.params);
|
33 |
|
34 | if(_body.length && _params.length) {
|
35 | for (let i = 0; i < r.required.length; i++) {
|
36 | if (_body.indexOf(r.required[i]) < 0) {
|
37 | if (_params.indexOf(r.required[i]) > -1) {
|
38 | continue;
|
39 | }
|
40 | return response(false, `${r.context} '${r.required[i]}' is required`);
|
41 | }
|
42 | }
|
43 | return response(true, null, true);
|
44 | } else {
|
45 | const p = _body.length ? _body : (_params.length ? _params : null);
|
46 | if (p && p.length) {
|
47 |
|
48 | for (let i = 0; i < r.required.length; i++) {
|
49 | if (p.indexOf(r.required[i]) < 0) {
|
50 | return response(false, `${r.context} '${r.required[i]}' is required`);
|
51 | }
|
52 | }
|
53 | return response(true, null, true);
|
54 | }
|
55 | }
|
56 |
|
57 | return response(false, 'Required parameters do not match requirements!', null);
|
58 | }
|
59 | }catch (error) {
|
60 | console.log(65, error)
|
61 | }
|
62 | }
|
63 |
|
64 | export class Api {
|
65 | app: any;
|
66 | dependencies: any;
|
67 |
|
68 | constructor(dependencies: any) {
|
69 | if (dependencies) {
|
70 | this.dependencies = dependencies;
|
71 | }
|
72 |
|
73 | const app = express();
|
74 | process.setMaxListeners(Infinity);
|
75 |
|
76 | app.use(bodyParser.json({strict: false}));
|
77 |
|
78 | app.use(function (req, res, next) {
|
79 | res
|
80 | .set('Access-Control-Allow-Origin', '*')
|
81 | .set('Access-Control-Allow-Methods', 'GET, POST, DELETE, PUT')
|
82 | .set('Access-Control-Allow-Credentials', true)
|
83 | .set('Access-Control-Allow-Headers', 'Origin, Accept, Content-Type, X-Requested-With, X-Merchant-Id');
|
84 |
|
85 | process.on('unhandledRejection', (reason, p) => {
|
86 | console.log('Unhandled Rejection at: Promise', p, 'reason:', reason);
|
87 |
|
88 | });
|
89 | next();
|
90 | });
|
91 | app.disable('x-powered-by');
|
92 |
|
93 | this.app = app;
|
94 | }
|
95 |
|
96 | get(dependencyName: string) {
|
97 | if (this.dependencies[dependencyName]) {
|
98 | return this.dependencies[dependencyName];
|
99 | }
|
100 | return null;
|
101 | }
|
102 |
|
103 | routes(params: Array<IApi>) {
|
104 | for (let i = 0; i < params.length; i++) {
|
105 | let route = params[i].route.toString().trim(), method,
|
106 | swaggerFilePath = params[i].swaggerFilePath || '../../swagger';
|
107 |
|
108 | if (route.indexOf(' ') > -1) {
|
109 | [method, route] = params[i].route.split(' ');
|
110 | } else {
|
111 | route = params[i].route;
|
112 | method = (params[i].method === undefined) ? 'get' : params[i].method.toString();
|
113 | }
|
114 | method = method.toLowerCase();
|
115 |
|
116 | const _params = params[i], that = this;
|
117 |
|
118 | this.app[method](route, function(req, res) {
|
119 | if (_params.allowCors === undefined) {
|
120 | _params.allowCors = true;
|
121 | }
|
122 |
|
123 |
|
124 | res
|
125 | .set('Access-Control-Allow-Origin', '*')
|
126 | .set('Access-Control-Allow-Methods', 'GET, POST, DELETE, PUT')
|
127 | .set('Access-Control-Allow-Credentials', true)
|
128 | .set('Access-Control-Allow-Headers', 'Origin, Accept, Content-Type, X-Requested-With, X-Merchant-Id');
|
129 |
|
130 |
|
131 | if (route.indexOf('_swagger') > -1) {
|
132 | return res.json(require(swaggerFilePath));
|
133 | } else {
|
134 | if (_params.required && _params.required.length) {
|
135 | const __response = checkRequiredParams({req, required: _params.required, context: _params.context});
|
136 |
|
137 | if (!__response.success) {
|
138 | return res.status(400).json(__response);
|
139 | }
|
140 | }
|
141 |
|
142 | const p = {
|
143 | res,
|
144 | req,
|
145 | method,
|
146 | instance: that,
|
147 | context: _params.context,
|
148 | execute: _params['execute'],
|
149 | allowCors: _params.allowCors
|
150 | };
|
151 |
|
152 | that.app.res = res;
|
153 | that.app.req = req;
|
154 |
|
155 | if (_params.executeFirst) {
|
156 | p['executeFirst'] = _params['executeFirst'];
|
157 | }
|
158 |
|
159 | that.executeRoute(p);
|
160 | }
|
161 | });
|
162 | }
|
163 | }
|
164 |
|
165 | |
166 |
|
167 |
|
168 | async getSourceIp(): Promise<IResponse>{
|
169 | try{
|
170 |
|
171 | if(!this.app || !this.app.req ){
|
172 | return response(false, 'Not SourceIp Address found.');
|
173 | }
|
174 |
|
175 | const sourceIp = (this.app.req.headers['x-forwarded-for'] ||
|
176 | this.app.req.connection.remoteAddress ||
|
177 | this.app.req.socket.remoteAddress ||
|
178 | this.app.req.connection.socket.remoteAddress).split(",")[0] || '';
|
179 |
|
180 | if(sourceIp){
|
181 | return response(true, null, {sourceIp: sourceIp});
|
182 | }else{
|
183 | return response(false, 'Not SourceIp Address found.');
|
184 | }
|
185 |
|
186 | }catch (error) {
|
187 | console.log(78, error);
|
188 | return response(false, error);
|
189 | }
|
190 | }
|
191 |
|
192 | async executeRoute(params: IApi): Promise<IResponse> {
|
193 |
|
194 | const execute = params.execute,
|
195 | executeFirst = params.executeFirst,
|
196 | instance = params.instance;
|
197 | let res = params.res, req = params.req;
|
198 |
|
199 | try {
|
200 |
|
201 | if (executeFirst) {
|
202 | const [obj, meth] = params['executeFirst'].split('.');
|
203 | const awResult = await instance['dependencies'][obj][meth](
|
204 | params.method === 'get' ? params.req.params : params.req.body,
|
205 | params.method !== 'get' ? params.req.params : instance,
|
206 | params.method !== 'get' ? instance : null);
|
207 |
|
208 | if(awResult) {
|
209 |
|
210 | if (awResult.success) {
|
211 | const [obj, meth] = params['execute'].split('.');
|
212 | const _response = await instance['dependencies'][obj][meth](
|
213 | params.method === 'get' ? params.req.params : params.req.body,
|
214 | params.method !== 'get' ? params.req.params : instance,
|
215 | params.method !== 'get' ? instance : null);
|
216 | if (_response) {
|
217 | if (_response.success && _response.data) {
|
218 | if (Array.isArray(_response.data.Items)) {
|
219 | return res.status(_response.data.Items.length? 200: 404).json(response(true, false, _response.data.Items.length > 1? _response.data.Items : _response.data.Items[0]));
|
220 | } else {
|
221 | res.status(200);
|
222 | }
|
223 | } else {
|
224 | res.status(400);
|
225 | }
|
226 | } else {
|
227 | res.status(500);
|
228 | }
|
229 | } else {
|
230 | res.status(400);
|
231 | }
|
232 | } else {
|
233 | res.status(500);
|
234 | }
|
235 | res.json(awResult);
|
236 | } else {
|
237 | const [obj, meth] = params['execute'].split('.');
|
238 |
|
239 | const _response = await instance['dependencies'][obj][meth](
|
240 | params.method === 'get' ? params.req.params : params.req.body,
|
241 | params.method !== 'get' ? params.req.params : instance,
|
242 | params.method !== 'get' ? instance : null);
|
243 | if (_response) {
|
244 | if (_response.success && _response.data) {
|
245 | if (Array.isArray(_response.data.Items)) {
|
246 | return res.status(_response.data.Items.length? 200: 404).json(response(true, false, _response.data.Items.length > 1? _response.data.Items : _response.data.Items[0]));
|
247 | } else {
|
248 | res.status(200);
|
249 | }
|
250 | } else {
|
251 | res.status(400);
|
252 | }
|
253 | } else {
|
254 | res.status(500);
|
255 | }
|
256 | res.json(_response);
|
257 | }
|
258 | } catch (error) {
|
259 | console.log('[api()] error:', error);
|
260 | return res.status(500).json(response(false, error.message));
|
261 | }
|
262 | }
|
263 | }
|