CODEWITHSUNDEEP
scalascala-dispatch
Neil
Neil

Reputation: 25935

How do I get the value of a failed request in Dispatch?

When I make a request in Dispatch, I apply the Promise and get this:

Left(dispatch.StatusCode: Unexpected response status: 400)

How do I get the actual text of the response? I'm using Solr and it still returns valuable JSON with failed HTTP requests.

Upvotes: 7

Views: 1621

Answers (1)

Travis Brown
Travis Brown

Reputation: 139058

It looks like you've written something like the following:

Http(url OK as.String)

The OK is what's providing the simple error handling you see here. You can use > to get the results more directly. For example, if you write this:

Http(url("http://google.com/") OK as.String).either()

You'll get the following (at the moment, at least):

Left(dispatch.StatusCode: Unexpected response status: 301)

But if you make the following small change:

Http(url("http://google.com/") > as.String).either()

You get the full body of the redirect page:

res1: Either[Throwable,String] = 
Right(<HTML><HEAD><meta http-equiv="content-type" ...

If you want to do something fancier with the response, you can write your own asWhatever handler—see my answer here for a demonstration of how to get access to the headers as a map, for example.

Upvotes: 10

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