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8080 – Port where backend is hosted 4200 – my Angular2 frontend
In My Angular2 project i have file proxy.config.json with content like this
{
"/api": {
"target": "http://localhost:8080",
"secure": false,
"changeOrigin": "true",
"pathRewrite": {"^/api": ""}
}
}
In Angular2 package.json I changed start procedure to "start": "ng serve --proxy-config proxy.config.json"
When I type inside commander npm start then at the start I can see Proxy created: /api -> http://localhost:8080. Well, so far is good I guess.
I’m trying to send a request (Angular2)
constructor(private http: Http) {
this.getUsers();
}
getUsers(): any {
return this.http.get("/api/getusers")
.subscribe(response => {
console.log(response);
})
}
I’m getting an error that http://localhost:4200/api/getusers 404 (Not Found). As we can see, nothing has been proxied. Why? Did I do something wrong?
Console output of visual studio code is
10% building modules 2/2 modules 0 active[HPM] Proxy created: /api/ -> http://localhost:8080
[HPM] Proxy rewrite rule created: "^/api" ~> ""
[HPM] Subscribed to http-proxy events: [ 'error', 'close' ]
Hash: d102bcd0909a1776c844
Time: 27041ms
chunk {0} main.bundle.js, main.bundle.map (main) 13.6 kB {2} [initial] [rendered]
chunk {1} styles.bundle.js, styles.bundle.map (styles) 130 kB {3} [initial] [rendered]
chunk {2} vendor.bundle.js, vendor.bundle.map (vendor) 3.87 MB [initial] [rendered]
chunk {3} inline.bundle.js, inline.bundle.map (inline) 0 bytes [entry] [rendered]
webpack: Compiled successfully.
[HPM] Rewriting path from "/api/getusers" to "/getusers"
[HPM] GET /api/getusers ~> http://localhost:8080
This is browser console response:
GET http://localhost:4200/api/getusers 404 (Not Found)
error_handler.js:54 EXCEPTION: Response with status: 404 Not Found for URL: http://localhost:4200/api/getusers
Subscriber.js:238 Uncaught Response {_body: "<html><head><title>Apache Tomcat/7.0.47 - Error re…hade"><h3>Apache Tomcat/7.0.47</h3></body></html>", status: 404, ok: false, statusText: "Not Found", headers: Headers…}
530
json doesn't work in my project, but in JS works.
Example: proxy.conf.js file
const PROXY_CONFIG = [
{
context: ['/api'],
target: 'http://localhost:8080/',
secure: false,
logLevel: 'debug',
pathRewrite: {'^/api' : ''}
}
];
module.exports = PROXY_CONFIG;In package.json :
...
"scripts": {
"ng": "ng",
"start": "ng serve --proxy-config proxy.conf.js", //this line
"build": "ng build",
"test": "ng test",
"lint": "ng lint",
"e2e": "ng e2e"
},
...
In service.ts:
use this URL: '/api/getusers'
Finally you shuld to start with:
npm start
I have tried this way. my proxy.conf.json file is like this:
{
"/api": {
"target": "http://localhost:8080",
"secure": false,
"changeOrigin": "true",
"pathRewrite": {"^/api": ""}
}
}
and I have replaced "start": "ng serve" with this "start": "ng serve --proxy-config proxy.conf.json" in package.json
my app.component.ts file is like this:
constructor(private http: Http) {
this.getUsers();
}
getUsers(): any {
return this.http.get("http://localhost:4200/api/getusers")
.subscribe(response => {
console.log(response);
})
}
in my API it provides set of user from http://localhost:8080/getusers URL
25
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