Question 1

How to add authentication headers in sttp client?

Accepted Answer

sttp client provides built-in methods like .auth.basic() for basic authentication and .header() for custom tokens. For OAuth or advanced schemes, you can set authorization headers manually or use integrations with auth libraries, as referenced in the JSON integration features.

Question 2

sttp client vs akka-http client: which is better?

Accepted Answer

sttp client can use Akka HTTP as a backend, offering a unified API across multiple systems, while akka-http client is native to Akka. Choose sttp for flexibility with other effect systems or backends, or akka-http for deeper Akka ecosystem integration.

Question 3

How to handle streaming responses with sttp and fs2?

Accepted Answer

Configure a streaming backend compatible with fs2 and use the .response(asStream(fs2.Stream)) method to process the response body as a stream. Refer to the sttp documentation for backend-specific examples on integrating with fs2.

Question 4

Does sttp client support HTTP/2?

Accepted Answer

HTTP/2 support depends on the chosen backend, such as Java's HttpClient or OkHttp, which have native HTTP/2 capabilities. sttp itself does not enforce HTTP/2 but relies on the underlying implementation's features.

Question 5

How to test HTTP interactions with sttp client?

Accepted Answer

sttp includes testing utilities that allow mocking HTTP responses or recording interactions using a testing backend. This enables unit testing without real network calls, as mentioned in the testing tools feature.

Question 6

Can I use sttp client with Scala.JS for browser HTTP requests?

Accepted Answer

Yes, sttp client supports Scala.JS with backends like Fetch or XMLHttpRequest. Import the appropriate Scala.JS backend dependency and configure it, as noted in the multi-platform availability for JVM, Scala.JS, and Scala Native.

sttp

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