how to submit input data along with ng2 file upload angular ionic - php

Question

Please I want to send some text data with file upload(ng2 file upload) in angular ionic. I am new to angular and ionic as well. I have tried so many options but I don't seem to get a way out. I am using Php as a backend.I am able to send the file only but not the input data like username. Meanwhile I am able to log the input data that's username on the console but the server response is null. And it never inserts in my database. This is my code.
public fileUploader: FileUploader = new FileUploader({});
ngOnInit() {
this.fileUploader = new FileUploader({ url: "http://localhost/paat/server/post.php"});
this.fileUploader.onBuildItemForm = (fileItem: any, form: FormData): any => {
form.append('body', this.body);
form.append('username', this.username);
// Add file to upload
form.append('file', fileItem);
fileItem.withCredentials = false;
return { fileItem, form };
};
}
fileOverBase(event): void {
this.hasBaseDropZoneOver = event;
}
//return files from ng2 upload
getFiles(): FileLikeObject[] {
return this.fileUploader.queue.map((fileItem) => {
return fileItem.file;
});
}
// the upload method where the post to server is made
uploadFiles() {
let bodys = {
body:this.body,
username:this.username,
};
let files = this.getFiles();
let requests = [];
files.forEach((file) => {
let formData = new FormData();
formData.append('file' , file.rawFile, file.name);
formData.append('body' , this.body);
formData.append('username' , this.username);
requests.push(this.uploadingService.uploadFormData(formData));
});
concat(...requests).subscribe(
(res) => {
console.log(res);
console.log(this.body);
console.log(this.username);
console.log(this.file.name);
},
(err) => {
console.log(err);
}
);
}
this is my uploadservice.ts
import { Injectable } from '#angular/core';
import { HttpClient } from '#angular/common/http';
#Injectable({
providedIn: 'root'
})
export class UploadingService {
API_SERVER: string = "http://localhost/paat/server/post.php";
constructor(private http: HttpClient) { }
public uploadFormData(formData) {
return this.http.post<any>(`${this.API_SERVER}`, formData);
}
}
This is my backend code:
<?php
header("Access-Control-Allow-Origin: *");
header("Content-Type: application/json; charset=UTF-8");
header("Access-Control-Allow-Methods:POST,GET,PUT,DELETE");
header("Access-Control-Max-Age:86400");
header("Access-Control-Allow-Headers: Content-Type,Access-Control-Allow-Headers,Authorization,X-Requested-With");
$con = mysqli_connect("localhost", "root", "", "social");
$postjson = json_decode(file_get_contents('php://input'), true);
$filename = $_FILES['file']['name'];
$meta = $_POST;
$targetDir = "assets/images/posts/";
$destination = $targetDir . $filename;
move_uploaded_file( $_FILES['file']['tmp_name'] , $destination );
$body = $postjson['body'];
$date_added = date("Y-m-d H:i:s");
//get username
$added_by = $postjson['username'];
//if user is on own profile, user_to is 'none'
$targetfile = $destination;
$user_to ="none";
$query = mysqli_query($con,"INSERT INTO posts VALUES(NULL, '$body', '$added_by', '$user_to', '$date_added', 'no', 'no', '0', '$targetfile')");
What am I doing wrong? Please help.

Answer 1

I have found out what I was doing wrong. The problem was with my backend code. It was the way I was retrieving the formdata values from the request. So I changed
$body = $postjson['body'];
$added_by = $postjson['username'];
to
$body = $_POST['body'];
$added_by = $_POST['username'];
Also I modified my ngOnInit() method and the instance of fileuploader method to
public fileUploader: FileUploader = new FileUploader({ url: "http://localhost/paat/server/post.php"});
ngOnInit() {
this.fileUploader.onBuildItemForm = (fileItem: any, form: FormData): any => {
form.append('body', this.body);
// Add file to upload
form.append('file', fileItem);
form.append('username', this.username);
fileItem.withCredentials = false;
return { fileItem, form };
};
}
and it now works.