Using Angular 6 to upload an XML document via httpClient

I have a service in Angular 6 using httpClient with the following code:

import { Injectable } from '@angular/core';
import { HttpClient, HttpHeaders } from '@angular/common/http';

const httpOptions = {
  headers: new HttpHeaders({ 'Content-Type': 'text/xml' })
};

@Injectable({
  providedIn: 'root'
})
export class ApiService {

  constructor(private http: HttpClient) { }

  post() {
      const postedData = { userid: 1, title: 'title here', body: 'body text' };
      return this.http.post('this url here', postedData, httpOptions).subscribe(result => {
        console.log(result);
      }, error => console.log('There was an error: '));
  }

}

Now, I am looking to modify this code to post an xml file. How should I go about making that change?

Answer №1

Looking to send XML data via a POST request? Remember to include the 'Content-Type' Http header.

For receiving XML in response, you can choose from json, text, blob, and arraybuffer. While XML is not directly supported, you can request it as plain text by specifying 'Accept: application/xml' and setting Response-Type to 'text' (depending on your API server).

post() {
  // Configure HttpHeaders for XML.
  const httpOptions = {
    headers: new HttpHeaders({
      'Content-Type':  'application/xml', //<- Specifying XML content
      'Accept':  'application/xml',       //<- Requesting XML format
      'Response-Type': 'text'             //<- Angular handle response as text
    })
  };
  const postedData = `
    <userid>1</userid>
    <title>title here</title>
    <body>body text</body>`;

  return this.http.post('this url here', postedData, httpOptions)
    .subscribe(
      result => { 
        console.log(result);  //<- XML response will be received as plain text
      }, 
      error => console.log('An error occurred: ', error));
  }

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