angular - ionic2 not sending post data -


following function in auth.service.ts calling 1 of pages.. 

import { injectable } '@angular/core'; import { http, headers } '@angular/http'; import { storage } '@ionic/storage'; import 'rxjs/add/operator/map';  @injectable() export class authservice {    public token: any;    constructor(public http: http, public storage: storage) {    } login(credentials){  return new promise((resolve, reject) => {     console.log(credentials);     let headers = new headers();     headers.append('content-type', 'application/json');     this.http.post('https://mysite.co.uk/ionlogin.php', json.stringify(credentials), {headers: headers})       .subscribe(res => {          let data = res.json();         this.token = data.token;         this.storage.set('token', data.token);         resolve(data);          resolve(res.json());       }, (err) => {         reject(err);       });  });  } }

the above login function called doesn't send data. in console console.log(credentials) prints before post request.

{email: "sugumar", password: "123456"}

but in network tab in browser, don't see data sent server.

and in the server printing using

var_dump(json_decode(file_get_contents("php://input")));

it prints null in network tab in browser

i see following error in console

xmlhttprequest cannot load https://mysite.co.uk/ionlogin.php. request header field access-control-allow-origin not allowed access-control-allow-headers in preflight response.

so added following lines in php

header("access-control-allow-origin: *"); header("access-control-allow-credentials: true "); header("access-control-allow-methods: options, get, post"); header("access-control-allow-headers: content-type, depth, user-agent, x-file-size,      x-requested-with, if-modified-since, x-file-name, cache-control");

but still same problem

try using requestoptions instead of sending header object directly

import { http, headers, requestoptions } '@angular/http';  public login = () => {   return new promise((resolve, reject) => {     let headers = new headers({'content-type', 'application/json'});     // took off append cause way, there's no need remove it.     let options = new requestoptions({headers: headers});     this.http.post('https://mysite.co.uk/ionlogin.php', json.stringify(credentials), options)     .subscribe(res => {        let data = res.json();       this.token = data.token;       this.storage.set('token', data.token);        // why resolve twice? it'll first resolve       resolve(data);       resolve(res.json());     }, (err) => {       reject(err);     });   }); }

the requestoptions module create options based on fetch spec requisitions, maybe passing headers object making fail or missing provided request option.

hope helps.


Comments

Post a Comment

Popular posts from this blog

php - Cannot override Laravel Spark authentication with own implementation -

during login process of laravel spark need request token of remote api. api stores exact same users , passwords laravel spark application. therefore need username , non hashed password of user during authentication process. i thought overriding authenticated method solution problem. in routes/web.php override post /login endpoint , pointing endpoint own logincontroller: <?php namespace app\http\controllers\auth; use illuminate\support\facades\log; use illuminate\http\request; use laravel\spark\http\controllers\auth\logincontroller sparklogincontroller; class logincontroller extends sparklogincontroller { /** * create new login controller instance. * * @return void */ public function __construct() { parent::__construct(); } /** * handle successful authentication attempt. * * @param request $request * @param \illuminate\contracts\auth\authenticatable $user * @return response */ public fu...
Read more

Qt QGraphicsScene is not accessable from QGraphicsView (on Qt 5.6.1) -

i new qt. trying catch mouse press , release in qgraphicsview area , draw line. this, extended qgraphicsview , called myqgraphicsview . seems scene not attached since added " hello world " , never appears in view. here code extended class: class myqgraphicsview : public qgraphicsview { q_object public: myqgraphicsview(qgraphicsscene *scene, qwidget *parent = q_nullptr) : qgraphicsview(scene,parent){ // qgraphicsview::qgraphicsview(scene,parent); } qpoint *pointptr, *startpos,*endpos; qgraphicsview *cv;//maa qgraphicsscene *c; qgraphicsscene *sceneptr; // maa protected: void paintevent(qpaintevent *event) { show(); } void mousepressevent(qmouseevent *event) { // pos wrt widget. global wer global screen qdebug()<<" mouse pressed @ "<<qwidget::mapfromglobal(event->globalpos()); //globalx(); startpos = new qpoint; startpos->setx(qwidget::mapfromglobal(event->globalpos()).x()); startpos->sety(qw...
Read more

What is happening when Matlab is starting a "parallel pool"? -

running parallel cpu processes in matlab starts command parpool() according documentation , function: [creates] special job on pool of workers, , [connects] matlab client parallel pool. this function takes bit of time execute, on order of 30 seconds. in other multi-cpu paradigms openmp, parallel execution seems totally transparent -- i've never noticed behavior analogous matlab (granted i'm not experienced parallel programming). so, happening between time parpool() called , when finishes executing? takes long? parallel computing toolbox enables run matlab code in parallel using several different paradigms (e.g. jobs , tasks, parfor , spmd , parfeval , batch processing), , run either locally (parallelised across cores in local machine) or remotely (parallelised across machines in cluster - either 1 own, or 1 in cloud). in of these cases, code run on matlab workers , copies of matlab without interactive desktop. if you're intending run on remo...
Read more