为什么在成功授权后使用 Express 的节点 js 中间件不会调用给定 API？

Question

I have below setup to call API with middleware to authorize it before success.

1. Calling API with token i d with header object using jquery ajax,

 $.ajax({ url: '/api/auth/fetchMycontent', type: 'POST', dataType: 'json', contentType: 'application/json; charset=utf-8', cache: false, context: this, headers: { "X-Access-Token": tokenId }, data: JSON.stringify({ accountId: accountId }), success: function(data){ //render data in HTML } });

2. Setting node server as below,

 var express = require('express'); var app = express(); var bodyParser = require('body-parser'); // Add your middlewares: var middleware = require("middlewares"); app.use(bodyParser.json()); app.all('/api/auth/*', middleware.apiValidate); app.use('/', require('./modelApi')); ...

3. setting API in modelApi/index.js,

 var express = require('express'), router = express.Router(), api = require('../api.js'), router.post('/api/auth/fetchMycontent', api.fetchMycontent); module.exports = router;

4. middleware.js file will be like

 module.exports = { apiValidate: function (req, res, next) { var token = req.body.x_access_token; if (token) { elastic.fetchToken(table, token).then(function (data) { if (data.hits.total > 0) { **//authorization success but next() fails here <------** next(); } else { res.json({ message: "Invalid User access,;"; }); return, } }); } }, };

5. From api.js,fetchMycontent function will be like

 fetchMycontent: function(req, res) { **console.log('not reaching after authorization success.,.')** elastic.fectMycontent(table. req,body);then(function (data) { res.set('Content-Type'; 'application/json'). res;status(200); res.send(data); }) }

When i call api ' fetchMycontent ', it calls middleware as expected and authorize it and does not call fetchMycontent()?!! What am i missing here? Please advise

Thanks in advance

Answer 1

I think you are missing to extend like export class AuthenticationMiddleware implements ExpressMiddlewareInterface and implement the use function use(req, res, next)

Answer 2

Base url was added with two slash, Fixed by removing one / and it is working fine.