I'm trying to recreate Post JSON from angular 2 to php but it doesn't work as there's nothing in the $_REQUEST
variable on php side
The code:
searchHttp({body}: any): Promise<any>
{
let headers = new Headers ({ 'Content-Type': 'application/json' });
let options = new RequestOptions({ headers: headers, method: "post" });
let test_this = {"search": "person"};
return this.http.post(this.post_url, JSON.stringify(test_this), options)
.toPromise()
.then(response =>
{
return response.text();
})
.catch(this.handleError);
}
Is there something I'm missing? I know that posts works with another format because I have that answered in another question.
Also, is http.request
better than http.post
?
Edit:
After much consultation with Angular/Javascript experts, they believe this is a php issue. So anyone with knowledge of how to accept JSON objects on php side will be gladly welcomed.
angular 2 client side part
ngOnInit() {
let body=Api+'product.php'+'?id=' + this.link_id;
this._callservice.callregister(body)
.subscribe( data => {
this.outputs=data;
},
error => console.log("Error HTTP Post"),
() => console.log("completed") );
}
}
call.service.ts
import {Injectable} from '@angular/core';
import {Router} from '@angular/router';
import {Http, Response, Headers, RequestOptions} from '@angular/http';
import {Observable} from 'rxjs/Observable';
import 'rxjs/add/operator/map';
import 'rxjs/add/operator/catch';
import 'rxjs/add/observable/throw';
@Injectable()
export class AuthenticationService {
constructor(private _http:Http){}
postregister(api:any){
// console.log(api);
let headers = new Headers({'Content-Type':'application/x-www-form-urlencoded'});
let options = new RequestOptions({ headers: headers, method: "post"});
return this._http.get(api,options)
.map(res => res.json())
.catch(this.handleError);
}
private handleError (error: Response) {
console.error(error);
return Observable.throw(error.json().error || ' error');
}
}
Server side PHP make sure on server side you have these three lines in php code.
header('Access-Control-Allow-Origin: *');
header('Access-Control-Allow-Headers: X-Requested-With');
header('Access-Control-Allow-Methods: POST, GET, OPTIONS');
Php file:
<?php
header('Access-Control-Allow-Origin: *');
header('Access-Control-Allow-Headers: X-Requested-With');
header('Access-Control-Allow-Methods: POST, GET, OPTIONS');
$servername = "localhost";
$username1 = "root";
$password = "root";
$dbname = "product";
$e=array("error"=>1,"message"=>"Account Already Exists");
$accountCreated = array( "error" =>0,
"data" => array(
"username" => "amit" ,
"password" => "anypassword",
"role"=> "user",
"id" => "anyid" ) );
// Create connection
$conn = mysqli_connect($servername, $username1, $password, $dbname);
// Check connection
if (!$conn) {
die("Connection failed: " . mysqli_connect_error());
}
$username = $_GET["username"];
$Pass = $_GET["password"];
$role= $_GET["role"];
$sql="SELECT COUNT(*) as user FROM users WHERE username = '$username'";
$result = mysqli_query($conn,$sql);
$line = mysqli_fetch_assoc($result);
$count = $line['user'];
if($count!=0)
{
echo json_encode($e);
}
else
{
$sql="INSERT INTO users(username,password,role)VALUES('$username','$Pass','$role')";
$result=mysqli_query($conn,$sql);
$sql="select * from users where username ='$username'";
$result=mysqli_query($conn,$sql);
$line=mysqli_fetch_assoc($result);
{
$accountCreated['data']['username']=$line['username'];
$accountCreated['data']['password']=$line['password'];
$accountCreated['data']['role']=$line['role'];
$accountCreated['data']['id']=$line['id'];
}
echo json_encode($accountCreated);
}
?>
i hope this will work for you .. for json i guess you should pass as options and use json decode for values you get in options.
There doesn't appear to be anything wrong with the Angular code. The issue is in what the PHP is expecting to receive. I am not a PHP expert, but as you've mentioned that it works fine with jQuery, then that indicates that your PHP is expecting a URL-encoded value (as jQuery tends to work with that), not a JSON value.
In other words, what the server is trying to parse is:
search=person
What you are sending is:
{ "search": "person" }
Try something more like the following to send it in the format you're wanting:
let test_this = { "search": "person" };
let headers = new Headers ({ 'Content-Type': 'application/x-www-form-urlencoded' });
let options = new RequestOptions({ headers: headers, method: "post" });
http.post(this.post_url, test_this, options)
来源:https://stackoverflow.com/questions/41154319/how-to-post-json-object-with-http-post-angular-2-php-server-side