Error encountered during the http.put() method due to invalid request payload

Question

Error encountered during the http.put() method due to invalid request payload

I'm currently using HttpClient from '@angular/common/http' to perform a PUT operation.

Here is the Angular code snippet I am working with:

public updateDetails(data: Data) {


    const url = '/project/rest/v1/configuration/device/update'
    console.log(JSON.stringify(data));
    let headers = new HttpHeaders();
     headers.append('Content-Type' , 'application/json');


    let body = JSON.stringify(data);

    return this.http.put(url, data, { headers: headers })
      .map(response => true)
      .catch(err => {
        console.log(err);
        return Observable.of(false);
      });

  }

However, I am encountering an issue where I receive the following error:

HttpErrorResponse {headers: HttpHeaders, status: 400, statusText: "Bad Request",

I'm unsure of what I might be missing. I've tried passing the data in stringified format, but it's still resulting in the same error. Any assistance would be greatly appreciated.

angular typescript

Answer 1

Answer №1

It appears that there are two issues to address.

The headers.append function does not alter the existing headers object; instead, it returns a new headers object with the added header.

Therefore, instead of:

let headers = new HttpHeaders();
headers.append('Content-Type' , 'application/json');

You should use:

const headers = new HttpHeaders()
   .append('Content-Type' , 'application/json');

There is no need to stringify the data -

Simply pass the object to the HttpClient, like this:

this.http.put(url, data, { headers: headers })

Answer 2

It appears that there are two issues to address.

The headers.append function does not alter the existing headers object; instead, it returns a new headers object with the added header.

Therefore, instead of:

let headers = new HttpHeaders();
headers.append('Content-Type' , 'application/json');

You should use:

const headers = new HttpHeaders()
   .append('Content-Type' , 'application/json');

There is no need to stringify the data -

Simply pass the object to the HttpClient, like this:

this.http.put(url, data, { headers: headers })

Answer 3

Answer №2

experiment

let headers = new Headers({ 'Content-Type': 'application/json'});
let configOptions = new RequestOptions({ headers: headers });

sendData(url, jsonData, configOptions) {
    return this.http.put(url, data, options)
}

Answer 4

experiment

let headers = new Headers({ 'Content-Type': 'application/json'});
let configOptions = new RequestOptions({ headers: headers });

sendData(url, jsonData, configOptions) {
    return this.http.put(url, data, options)
}

Error encountered during the http.put() method due to invalid request payload

Answer №1

Answer №2

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