Test if the body of a POST request "goes missing" when constructing a manual Request (using the apply method of Request); it also sees if the client RequestLogger logs the request correctly.

It repeats the test using the http4s DSL to construct the request.

sbt run should test all client implementations (Async, Blaze, Jetty, OkHttp).

Currently:

• "Manual" does not work for Async or OkHttp in addition the RequestLogger does not log
• Sending using the DSL works for all implementations and the logging is successful except for OkHttp
  • If the client logger is disabled then it is successful for OkHttp

Uses a local http4s server as the endpoint for requests, this simply sends whatever JSON it received straight back.

A "manual" request looks like this:

def requestManual(uri: Uri, body: Json): F[String] = {
  val client: Client[F] = ???

  for {
    hBody    <- http4sBody(body.noSpaces)
    request  =  Request(method = Method.POST, uri = uri, headers = Headers(`Content-Type`(MediaType.application.json)), body = hBody)
    response <- client.expect[String](request)
  } yield response
}

def http4sBody(body: String)(implicit encoder: EntityEncoder[F, String]): F[EntityBody[F]] =
  F.pure(encoder.toEntity(body).body)  // I have tried this as F.delay and it does not affect the result

A request using the DSL looks like this:

def requestDsl(uri: Uri, body: Json): F[String] = {
  val client: Client[F] = ???

  client.expect[String](POST(body, uri))
}

OkHttp client request logger

With OkHttp using the DSL the following error results when the client request logger is enabled (from googling the error is because the response body is being read twice):

[info] [scala-execution-context-global-10] WARN  o.h.c.o.OkHttpBuilder - Unable to write to OkHttp sink
[info] java.lang.IllegalStateException: closed
[info]  at okio.RealBufferedSink.write(RealBufferedSink.java:84)
[info]  at org.http4s.client.okhttp.OkHttpBuilder$$anon$4.$anonfun$writeTo$3(OkHttpBuilder.scala:137)
[info]  at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
[info]  at cats.effect.internals.IORunLoop$.cats$effect$internals$IORunLoop$$loop(IORunLoop.scala:87)
[info]  at cats.effect.internals.IORunLoop$RestartCallback.signal(IORunLoop.scala:351)
[info]  at cats.effect.internals.IORunLoop$RestartCallback.apply(IORunLoop.scala:372)
[info]  at cats.effect.internals.IORunLoop$RestartCallback.apply(IORunLoop.scala:312)
[info]  at cats.effect.internals.IOShift$Tick.run(IOShift.scala:36)
[info]  at java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1402)
[info]  at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
[info]  at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
[info]  at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692)
[info]  at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)

Disabling the client fixes this and the whole request / response is successful when using the DSL.

Log output / results

The whole log output:

[info] INFO  c.p.Main - Starting test of Async
[info] INFO  c.p.Main - Sending manual request using Async
[info] INFO  c.p.Http4sClient - Sending manual request: `Request(method=POST, uri=http://127.0.0.1:8080, headers=Headers(Content-Type: application/json))`; with body: `{"foo":"bar"}`
[info] INFO  o.h.s.m.Logger - HTTP/1.1 POST / Headers(Content-Type: application/json, Accept: text/*, content-length: 0, host: 127.0.0.1:8080, user-agent: AHC/2.1) body=""
[info] INFO  o.h.s.m.ResponseLogger - service raised an error: class org.http4s.MalformedMessageBodyFailure
[info] INFO  o.h.c.m.ResponseLogger - HTTP/1.1 400 Bad Request Headers(Content-Type: text/plain; charset=UTF-8, Date: Thu, 10 Jan 2019 15:55:15 GMT, Content-Length: 31) body=""
[info] INFO  c.p.Main - Result for manual request using Async: Left(org.http4s.client.UnexpectedStatus: unexpected HTTP status: 400 Bad Request)
[info] INFO  c.p.Main - Sending DSL request using Async
[info] INFO  o.h.c.m.RequestLogger - HTTP/1.1 POST http://127.0.0.1:8080 Headers(Content-Type: application/json, Content-Length: 13, Accept: text/*) body="{"foo":"bar"}"
[info] INFO  o.h.s.m.Logger - HTTP/1.1 POST / Headers(Content-Type: application/json, Content-Length: 13, Accept: text/*, host: 127.0.0.1:8080, user-agent: AHC/2.1) body="{"foo":"bar"}"
[info] INFO  o.h.s.m.Logger - HTTP/1.1 200 OK Headers(Content-Type: application/json, Content-Length: 13) body="{"foo":"bar"}"
[info] INFO  o.h.c.m.ResponseLogger - HTTP/1.1 200 OK Headers(Content-Type: application/json, Date: Thu, 10 Jan 2019 15:55:15 GMT, Content-Length: 13) body="{"foo":"bar"}"
[info] INFO  c.p.Main - Result for DSL request using Async: Right(true)
[info] INFO  c.p.Main - Finished test of Async. Passed: false
[info] INFO  c.p.Main - Starting test of Blaze
[info] INFO  c.p.Main - Sending manual request using Blaze
[info] INFO  c.p.Http4sClient - Sending manual request: `Request(method=POST, uri=http://127.0.0.1:8080, headers=Headers(Content-Type: application/json))`; with body: `{"foo":"bar"}`
[info] INFO  o.h.c.m.RequestLogger - HTTP/1.1 POST http://127.0.0.1:8080 Headers(Content-Type: application/json, Accept: text/*) body="{"foo":"bar"}"
[info] INFO  o.h.s.m.Logger - HTTP/1.1 POST / Headers(Host: 127.0.0.1:8080, Content-Type: application/json, Accept: text/*, User-Agent: http4s-blaze/0.20.0-M4, Content-Length: 13) body="{"foo":"bar"}"
[info] INFO  o.h.s.m.Logger - HTTP/1.1 200 OK Headers(Content-Type: application/json, Content-Length: 13) body="{"foo":"bar"}"
[info] INFO  o.h.c.m.ResponseLogger - HTTP/1.1 200 OK Headers(Content-Type: application/json, Date: Thu, 10 Jan 2019 15:55:15 GMT, Content-Length: 13) body="{"foo":"bar"}"
[info] INFO  c.p.Main - Result for manual request using Blaze: Right(true)
[info] INFO  c.p.Main - Sending DSL request using Blaze
[info] INFO  o.h.c.m.RequestLogger - HTTP/1.1 POST http://127.0.0.1:8080 Headers(Content-Type: application/json, Content-Length: 13, Accept: text/*) body="{"foo":"bar"}"
[info] INFO  o.h.s.m.Logger - HTTP/1.1 POST / Headers(Host: 127.0.0.1:8080, Content-Type: application/json, Accept: text/*, User-Agent: http4s-blaze/0.20.0-M4, Content-Length: 13) body="{"foo":"bar"}"
[info] INFO  o.h.s.m.Logger - HTTP/1.1 200 OK Headers(Content-Type: application/json, Content-Length: 13) body="{"foo":"bar"}"
[info] INFO  o.h.c.m.ResponseLogger - HTTP/1.1 200 OK Headers(Content-Type: application/json, Date: Thu, 10 Jan 2019 15:55:15 GMT, Content-Length: 13) body="{"foo":"bar"}"
[info] INFO  c.p.Main - Result for DSL request using Blaze: Right(true)
[info] INFO  c.p.Main - Finished test of Blaze. Passed: true
[info] INFO  o.h.c.PoolManager - Shutting down connection pool: curAllocated=1 idleQueues.size=1 waitQueue.size=0 maxWaitQueueLimit=256 closed=false
[info] INFO  o.e.j.util.log - Logging initialized @2692ms to org.eclipse.jetty.util.log.Slf4jLog
[info] INFO  c.p.Main - Starting test of Jetty
[info] INFO  c.p.Main - Sending manual request using Jetty
[info] INFO  c.p.Http4sClient - Sending manual request: `Request(method=POST, uri=http://127.0.0.1:8080, headers=Headers(Content-Type: application/json))`; with body: `{"foo":"bar"}`
[info] INFO  o.h.c.m.RequestLogger - HTTP/1.1 POST http://127.0.0.1:8080 Headers(Content-Type: application/json, Accept: text/*) body="{"foo":"bar"}"
[info] INFO  o.h.s.m.Logger - HTTP/1.1 POST / Headers(Accept-Encoding: gzip, User-Agent: Jetty/9.4.14.v20181114, Content-Type: application/json, Accept: text/*, Host: 127.0.0.1:8080, Content-Length: 13) body="{"foo":"bar"}"
[info] INFO  o.h.s.m.Logger - HTTP/1.1 200 OK Headers(Content-Type: application/json, Content-Length: 13) body="{"foo":"bar"}"
[info] INFO  o.h.c.m.ResponseLogger - HTTP/1.1 200 OK Headers(Content-Type: application/json, Date: Thu, 10 Jan 2019 15:55:15 GMT, Content-Length: 13) body="{"foo":"bar"}"
[info] INFO  c.p.Main - Result for manual request using Jetty: Right(true)
[info] INFO  c.p.Main - Sending DSL request using Jetty
[info] INFO  o.h.c.m.RequestLogger - HTTP/1.1 POST http://127.0.0.1:8080 Headers(Content-Type: application/json, Content-Length: 13, Accept: text/*) body="{"foo":"bar"}"
[info] INFO  o.h.s.m.Logger - HTTP/1.1 POST / Headers(Accept-Encoding: gzip, User-Agent: Jetty/9.4.14.v20181114, Content-Type: application/json, Accept: text/*, Host: 127.0.0.1:8080, Content-Length: 13) body="{"foo":"bar"}"
[info] INFO  o.h.s.m.Logger - HTTP/1.1 200 OK Headers(Content-Type: application/json, Content-Length: 13) body="{"foo":"bar"}"
[info] INFO  o.h.c.m.ResponseLogger - HTTP/1.1 200 OK Headers(Content-Type: application/json, Date: Thu, 10 Jan 2019 15:55:15 GMT, Content-Length: 13) body="{"foo":"bar"}"
[info] INFO  c.p.Main - Result for DSL request using Jetty: Right(true)
[info] INFO  c.p.Main - Finished test of Jetty. Passed: true
[info] INFO  c.p.Main - Starting test of OkHttp
[info] INFO  c.p.Main - Sending manual request using OkHttp
[info] INFO  c.p.Http4sClient - Sending manual request: `Request(method=POST, uri=http://127.0.0.1:8080, headers=Headers(Content-Type: application/json))`; with body: `{"foo":"bar"}`
[info] INFO  o.h.s.m.Logger - HTTP/1.1 POST / Headers(Content-Type: application/json, Accept: text/*, Transfer-Encoding: chunked, Host: 127.0.0.1:8080, Connection: Keep-Alive, Accept-Encoding: gzip, User-Agent: okhttp/3.12.0) body=""
[info] INFO  o.h.s.m.ResponseLogger - service raised an error: class org.http4s.MalformedMessageBodyFailure
[info] INFO  o.h.c.m.ResponseLogger - HTTP/1.1 400 Bad Request Headers(Content-Length: 31, Content-Type: text/plain; charset=UTF-8, Date: Thu, 10 Jan 2019 15:55:16 GMT) body=""
[info] INFO  c.p.Main - Result for manual request using OkHttp: Left(org.http4s.client.UnexpectedStatus: unexpected HTTP status: 400 Bad Request)
[info] INFO  c.p.Main - Sending DSL request using OkHttp
[info] INFO  o.h.s.m.Logger - HTTP/1.1 POST / Headers(Content-Type: application/json, Accept: text/*, Transfer-Encoding: chunked, Host: 127.0.0.1:8080, Connection: Keep-Alive, Accept-Encoding: gzip, User-Agent: okhttp/3.12.0) body=""
[info] INFO  o.h.s.m.ResponseLogger - service raised an error: class org.http4s.MalformedMessageBodyFailure
[info] INFO  o.h.c.m.RequestLogger - HTTP/1.1 POST http://127.0.0.1:8080 Headers(Content-Type: application/json, Content-Length: 13, Accept: text/*) body="{"foo":"bar"}"
[info] INFO  o.h.c.m.ResponseLogger - HTTP/1.1 400 Bad Request Headers(Content-Length: 31, Content-Type: text/plain; charset=UTF-8, Date: Thu, 10 Jan 2019 15:55:16 GMT) body=""
[info] INFO  c.p.Main - Result for DSL request using OkHttp: Left(org.http4s.client.UnexpectedStatus: unexpected HTTP status: 400 Bad Request)
[info] INFO  c.p.Main - Finished test of OkHttp. Passed: false
[info] WARN  o.h.c.o.OkHttpBuilder - Unable to write to OkHttp sink
[info] java.lang.IllegalStateException: closed
[info]  at okio.RealBufferedSink.write(RealBufferedSink.java:84)
[info]  at org.http4s.client.okhttp.OkHttpBuilder$$anon$4.$anonfun$writeTo$3(OkHttpBuilder.scala:137)
[info]  at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
[info]  at cats.effect.internals.IORunLoop$.cats$effect$internals$IORunLoop$$loop(IORunLoop.scala:87)
[info]  at cats.effect.internals.IORunLoop$RestartCallback.signal(IORunLoop.scala:351)
[info]  at cats.effect.internals.IORunLoop$RestartCallback.apply(IORunLoop.scala:372)
[info]  at cats.effect.internals.IORunLoop$RestartCallback.apply(IORunLoop.scala:312)
[info]  at cats.effect.internals.IOShift$Tick.run(IOShift.scala:36)
[info]  at java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1402)
[info]  at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
[info]  at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
[info]  at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692)
[info]  at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)