akka http - How to call poloniex trading api in scala -


my code following.

import org.apache.commons.codec.binary.hex import akka.actor.actorsystem import akka.http.scaladsl.http import akka.http.scaladsl.model.headers.rawheader import akka.http.scaladsl.model._ import akka.stream.actormaterializer import akka.util.bytestring import javax.crypto.spec.secretkeyspec import javax.crypto.mac  import scala.concurrent.executioncontext.implicits.global import scala.concurrent.future  class poloniex {   def post(postdata: string): future[httpresponse] = {     val command = "returnbalances"     val nonce = (system.currenttimemillis / 1000).tostring     val postdata = s"nonce=$nonce&command=$command"     val headers: scala.collection.immutable.seq[httpheader] = scala.collection.immutable.seq(       rawheader("key", api_key),       rawheader("sign", hmacsha512(postdata))     )      val entity = httpentity(postdata)      {       r <- http().singlerequest(httprequest(httpmethods.post, trading_url, headers, entity))     } yield r   }    private def hmacsha512(postdata: string): string = {     val secret = new secretkeyspec(api_secret.getbytes, hmac_sha512)     val mac = mac.getinstance(hmac_sha512)     mac.init(secret)     val result: array[byte] = mac.dofinal(postdata.getbytes)     new string(hex.encodehex(result))   } }

i 

{"error":"invalid command."}

but couldn't find why error. can find reason why error?

the api documentation here. https://poloniex.com/support/api/

thanks.

the content type of request must application/x-www-form-urlencoded. set this, use formdata:

val entity =   formdata(map("nonce" -> nonce, "command" -> command)).toentity(httpcharsets.`utf-8`)

Comments

Post a Comment

Popular posts from this blog

What is happening when Matlab is starting a "parallel pool"? -

running parallel cpu processes in matlab starts command parpool() according documentation , function: [creates] special job on pool of workers, , [connects] matlab client parallel pool. this function takes bit of time execute, on order of 30 seconds. in other multi-cpu paradigms openmp, parallel execution seems totally transparent -- i've never noticed behavior analogous matlab (granted i'm not experienced parallel programming). so, happening between time parpool() called , when finishes executing? takes long? parallel computing toolbox enables run matlab code in parallel using several different paradigms (e.g. jobs , tasks, parfor , spmd , parfeval , batch processing), , run either locally (parallelised across cores in local machine) or remotely (parallelised across machines in cluster - either 1 own, or 1 in cloud). in of these cases, code run on matlab workers , copies of matlab without interactive desktop. if you're intending run on remo...
Read more

angular - DownloadURL return null in below code -

when change file updated in firebase storage when try downloadurl show null. filechange(event: any) { const imagefolder: string = this.employee.id; const filelist: filelist = event.target.files; const file: file = filelist[0]; const storageref = firebase.storage().ref().child(`${imagefolder}/profile.jpg`).put(file); console.log(storageref.snapshot.downloadurl); } the put() asynchronous. if want url after file uploaded have this: firebase.storage().ref().child(`${imagefolder}/profile.jpg`).put(file).then((snapshot) => { storageref = snapshot.downloadurl: console.log(snapshot.downloadurl); });
Read more

php - Cannot override Laravel Spark authentication with own implementation -

during login process of laravel spark need request token of remote api. api stores exact same users , passwords laravel spark application. therefore need username , non hashed password of user during authentication process. i thought overriding authenticated method solution problem. in routes/web.php override post /login endpoint , pointing endpoint own logincontroller: <?php namespace app\http\controllers\auth; use illuminate\support\facades\log; use illuminate\http\request; use laravel\spark\http\controllers\auth\logincontroller sparklogincontroller; class logincontroller extends sparklogincontroller { /** * create new login controller instance. * * @return void */ public function __construct() { parent::__construct(); } /** * handle successful authentication attempt. * * @param request $request * @param \illuminate\contracts\auth\authenticatable $user * @return response */ public fu...
Read more