Update the response type for http.post function

Question

Update the response type for http.post function

I've implemented a post method using Angular's HttpClient.

While attempting to subscribe to the response for additional tasks, I encountered the following error:

Error: Uncaught (in promise): HttpErrorResponse: {"headers":{"normalizedNames":{},"lazyUpdate":null},"status":200,"statusText":"OK","url":"XXXXXXX","ok":false,"name":"HttpErrorResponse","message":"Http failure during parsing for XXXXXXXX","error":{"error":{},"text":"OK"}}

I read that this could be due to the response not being valid JSON. When testing in Postman, I received an OK response but not in JSON format.

My question is, how can I address this issue? Is there a way to convert the response into JSON?

This is what my method currently looks like:

submitInfo() {
   this.http.post(url, data).toPromise()
      .then(
          (response: Response) => {
              console.log(response);
          }
      ));
}

angular typescript angular-httpclient

Answer 1

Answer №1

In Angular, the default behavior is to process HTTP responses as JSON. This can lead to triggering the error handler even when the actual HTTP request is successful. To handle non-JSON responses, you have the option to explicitly specify that you are expecting a text response in your HTTP request. Alternatively, you can take advantage of Angular's built-in error handling for responses by formatting your response from the server or middleware as JSON.

If you are dealing with a non-JSON response, consider adjusting your HTTP request as shown below:

this.http.post(url, parameters, { responseType: 'text' });

Answer 2

In Angular, the default behavior is to process HTTP responses as JSON. This can lead to triggering the error handler even when the actual HTTP request is successful. To handle non-JSON responses, you have the option to explicitly specify that you are expecting a text response in your HTTP request. Alternatively, you can take advantage of Angular's built-in error handling for responses by formatting your response from the server or middleware as JSON.

If you are dealing with a non-JSON response, consider adjusting your HTTP request as shown below:

this.http.post(url, parameters, { responseType: 'text' });

Update the response type for http.post function

Answer №1

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