Encountered a JSON.Parse error in Angular 9's HttpErrorResponse even though the response was successful

Why am I encountering an error with this code snippet?

 deleteUser(userId: string) {
    this.dataService.deleteUser(userId).subscribe((response: string) => {
      console.log(response);
    });
  }

"SyntaxError: Unexpected token f in JSON at position 1 at JSON.parse () at XMLHttpRequest.onLoad (https://localhost:5001/vendor.js:34968:51) at ZoneDelegate.invokeTask (https://localhost:5001/polyfills.js:412:35) at Object.onInvokeTask (https://localhost:5001/vendor.js:72879:33) at ZoneDelegate.invokeTask (https://localhost:5001/polyfills.js:411:40) at Zone.runTask (https://localhost:5001/polyfills.js:180:51) at ZoneTask.invokeTask [as invoke] (https://localhost:5001/polyfills.js:493:38) at invokeTask (https://localhost:5001/polyfills.js:1634:18) at XMLHttpRequest.globalZoneAwareCallback (https://localhost:5001/polyfills.js:1671:25)"

The response received is a plain string value and has a status of 200.

https://i.sstatic.net/t95z2.png

https://i.sstatic.net/1dCgo.png

What could I have overlooked or missed in my implementation?

Answer №1

Revise the deleteUser function in your dataService to ensure that it is using the proper responseType (JSON typically being the default). Additionally, it appears this is where you are utilizing the httpClient.

httpClient.get('your_endpoint', { responseType: 'text' }).subscribe(response => {
    console.log(response);
});

Keep in mind that you are retrieving text data, not JSON.

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