Error Detail:

Hello, as you can see in the picture, I am sending a request to the API I wrote. api works but it shows an error even though the response status code is 200, what is the reason for this?

Angular Service:   giveCertificate(studentID:number,certificateID:number):Observable<any>{
    return this.httpClient.post(`https://localhost:6001/Admin/api/Certificates/give?studentID=` studentID "&certificateID=" certificateID, { responseType: 'text' });
  }

Angular methot:  giveCertificate(): void {
    if (this.CertificateAssignmentForm.valid) {
      let certificateGive: CertificateGive = new CertificateGive();
      certificateGive = Object.assign({}, this.CertificateAssignmentForm.value);
      
      this.certificateService.giveCertificate(certificateGive.studentID,certificateGive.certificateID)
      .subscribe(response=>{
        if (response.success) {
          this.alertfyService.confirm("Sertifika Öğrenciye Verildi")
        }
       
      })
    }
  }

CodePudding user response：

You have two issues here:

1. You're passing options in the place where you should pass the request body. The signature is:

   post(url, body, options)

2. You're not requesting text/plain from the server, so you're leaving it up to the server what format you want the response in.

Your request should actually look like this (newlines added for clarity):

this.httpClient.post(
    "http://localhost:6001/Admin/api/Certificates/give?studentID= studentID "&certificateID=" certificateID,
    null,
    { headers: { Accept: 'text/plain' }, responseType: 'text' }
);

Here we're specifying that we accept text/plain from the server. Then we're telling Angular that the response type is text.