CODEWITHSUNDEEP
scalaakkaakka-http
Frank Versnel
Frank Versnel

Reputation: 373

Idiomatic way to create a basic HTTP Post request with Akka HTTP

I'm trying to figure out how to create a basic HTTP POST request with the Akka HTTP library. This is what I came up with:

val formData = Await.result(Marshal(FormData(combinedParams)).to[RequestEntity], Duration.Inf)
val r = HttpRequest(POST, url, headers, formData)

The thing is that it seems a bit non-idiomatic to me. Are there other ways to create a HttpEntity from FormData? Especially the fact that I have to use Await or return a Future even though the data is readily available seems overly complex for such a simple task.

Upvotes: 12

Views: 10399

Answers (3)

propi
propi

Reputation: 126

You can also use RequestBuilding:

Http().singleRequest(RequestBuilding.Post(url, formData)).flatMap(Unmarshal(_).to[String])

Upvotes: 0

Frank Versnel
Frank Versnel

Reputation: 373

Apparently a toEntity method was added to the FormData class at some point. So this now seems like the simplest solution to the problem:

val formData = FormData(combinedParams).toEntity
val r = HttpRequest(POST, url, headers, formData)

Upvotes: 6

mattinbits
mattinbits

Reputation: 10428

You can use Marshal in a for comprehension with other Futures, such as the ones you need to send the request and unmarshall the response:

val content = for {
        request <- Marshal(formData).to[RequestEntity]
        response <- Http().singleRequest(HttpRequest(method = HttpMethods.POST, uri = s"http://example.com/test", entity = request))
        entity <- Unmarshal(response.entity).to[String]
      } yield entity

Upvotes: 18

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