How to get error json response?

[SharkFourSix]

According to this https://github.com/elbywan/wretch#catchers- , I should be able to get a response JSON object even during errors. However, the error parameter does not have a .json property. The .text property is present but having to serialize to JSON manually is very counterintuitive.

wretch("...")
  .get()
  .badRequest((err) => console.log(err.json[0].Message))
  .res();

type WretchError = Error & {
  status: number;
  response: WretchResponse;
  text?: string;
  json?: Object;
};

Perhaps there is another way that I'm not aware of?

[elbywan]

Hey @SharkFourSix,

However, the error parameter does not have a .json property. The .text property is present but having to serialize to JSON manually is very counterintuitive

You can call the .errorType method to specify the error body type. Putting .errorType("json") in the chain should populate the error.json field.

[SharkFourSix]

Thanks. :+1: That worked. I was about to switch to axios because of that that little inconvenience which can build up into lots of boilerplate code :sweat_smile:

[SharkFourSix]

Bump...

So it appears that this applies to all the error "catchers"? Is there a way to only call the parsing on demand in the handlers?

Because as it appears I have to design my API to always return a JSON response, again, something which is counterintuitive :/

I'm getting a JSON conversion error because some responses are only returning standard HTTP responses without any additional JSON data.

Can't you only parse JSON by looking at the content-type response?

[elbywan]

Because as it appears I have to design my API to always return a JSON response, again, something which is counterintuitive :/

Absolutely, I fully agree 👍.

Can't you only parse JSON by looking at the content-type response?

No, but this is an excellent idea! I just released v2.5.0 which will automatically deserialize the error body if the response content-type header is set to application/json, which should make it unnecessary to set .errorType in the first place if your server sets the header properly.

The error.text property will still get populated in case the parsing fails.

[SharkFourSix]

Cool. That was quick too. :+1: