Sending POST Request to Twitter API with Play Framework 2.0

Question

How do I send a POST request to twitter API using Play Framework 2.0 (with Scala)? The API I'm trying to call work with both GET and POST, and I've successfully called it using GET with this code: ``` val followersURL = "http://api.twitter.com/1/users/lookup.json?user_id=" + listOfFollowers.mkString(",") WS.url(followersURL) .sign(OAuthCalculator(Twitter.KEY, tokens)) .get() .map{ response => val screenName: Seq[String] = response.json match { case res: JsArray => res.value.map{ value => (value \ "name").toString } case _ => Seq("") } } ``` Then I tried to call the API using POST like this: ``` WS.url("http://api.twitter.com/1/users/lookup.json") .sign(OAuthCalculator(Twitter.KEY, tokens)) .post(Map("user_id"->listOfFollowers)) .map { response => val screenName: Seq[String] = response.json match { case res: JsArray => res.value.map{ value => (value \ "name").toString } case _ => Seq("") } } ``` It didn't work and I get this exception: ``` [error] play - Waiting for a promise, but got…

Accepted Answer

I have found this to work:

```
WS.url("http://api.twitter.com/1/users/lookup.json?user_id="+listOfFollowers)
  .sign(OAuthCalculator(Twitter.KEY, tokens))
  .post("ignored")
  .map { response => 
      val screenName: Seq[String] = response.json match {
          case res: JsArray => res.value.map{ value => (value \ "name").toString }
          case _ => Seq("")
      }
  }
```

I've also made notes to revisit my code with every major upgrade of Play! to check if the above gets fixed, because this is obviously not right.

Sending POST Request to Twitter API with Play Framework 2.0

Solution

Problem