Angular4 http get parse error

Question

Request mydomain/request returns json string like "accepted" or "declined"

I would use request in angular to get this string :

  getStatus(jobOfferId): Promise<string> {
    const url = "someurl";

    return this.httpClientService.get(url)
      .toPromise()
      .then(response => response as string);
  }

This would work in angular 2, but I've just upgraded to angular 4 and this request returns an error instead

"Http failure during parsing for https://mydomain/request"

@ochi I did, it's just a single string wrapped in brackets " — Ben
– Ben, Commented Sep 3, 2017 at 15:50
@LazarLjubenović Nowhere in my code I mentioned using HttpClient class specifically. httpClientService is an abstract injection that handles http related stuff. The class itsself was migrated. — Ben
– Ben, Commented Sep 3, 2017 at 16:05
@LazarLjubenović currently httpClientService.get is the same as HttpClient.get but before migration it had different implementation — Ben
– Ben, Commented Sep 3, 2017 at 16:08

Flavien Volken · Accepted Answer · 2018-04-26 17:39:03Z

3

JSON is the default expected response type. You can try forcing using "text" instead and print the result just to understand what is happening:

httpClient.get('http://some.com/endpoint/', { responseType: 'text' }).subscribe(result => {
    console.log(result);
});

edited Apr 26, 2018 at 17:39

answered Sep 25, 2017 at 10:58

Flavien Volken

21.5k14 gold badges114 silver badges147 bronze badges

Sign up to request clarification or add additional context in comments.

3 Comments

Philipp Ludwig Over a year ago

error TS2345: Argument of type '{ responseType: "text"; }' is not assignable to parameter of type '{ headers?: HttpHeaders | { [header: string]: string | string[]; }; observe?: "body"; params?: Ht...'.   Types of property 'responseType' are incompatible.     Type '"text"' is not assignable to type '"json"'.

Also, headers is not defined.

Flavien Volken Over a year ago

@PhilippLudwig I removed the optional header from the example however the responseType: ''text' is correct. You can check a similar example here. Also this answer was for Angular 4, Angular 5 is having a new http service

bryan60 Over a year ago

Confirming that this is the correct approach if your response type is plain text instead of JSON. You mention in a comment above that your httpClientService is an abstraction layer over angular's httpClient. If this is not working, the issue is likely in how you implement your abstraction.

Collectives™ on Stack Overflow

Angular4 http get parse error

1 Answer 1

3 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

3 Comments

Your Answer

Sign up or log in

Post as a guest

Related