CODEWITHSUNDEEP
cyclejsxstream-js
Svilen
Svilen

Reputation: 2648

Getting the API error response from CycleJS HTTPDriver

I'm trying out CycleJS with xstream and I can't find a way to both rescue an error (e.g. 422) and get the JSON response from the HTTP driver.

To rescue from an error, I'm using xstream's replaceError which seems to work like this:

sources.HTTP
  .select('hello')
  .map((response$) =>
    // No response$.body or response$.error, just response$.request.
    response$.replaceError(() => xs.of(errorObject))
  ).flatten()

However, the API returns an error message that I would like to display to the user, and it is lost if replaced with a default object. The only property on the response$ that's set is the actual request data.

Versions:

"@cycle/dom": "^12.2.5"
"@cycle/http": "^11.0.1"
"@cycle/xstream-run": "^3.1.0"
"xstream": "^6.4.0"

Any ideas are appreciated!

Upvotes: 2

Views: 251

Answers (1)

André Staltz
André Staltz

Reputation: 13994

Try to catch the error object err in the argument for replaceError (you weren't using it):

response$.replaceError(err => /* use err here */)

Upvotes: 1

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