Gatling load test gives 400 bad request error - gatling

Question

i am trying write a load test for this project https://github.com/theiterators/akka-http-microservice by using post request to server. but all the responses are failed. how can i resolve it
PostSimulation
import io.gatling.core.Predef._
import io.gatling.http.Predef._
import scala.concurrent.duration._
class PostSimulation extends Simulation {
val httpProtocol = http
.baseUrl("http://localhost:9000") // Here is the root for all relative URLs
.inferHtmlResources()
.acceptHeader("*/*")
.acceptEncodingHeader("gzip, deflate")
.contentTypeHeader("application/json")
.userAgentHeader("PostmanRuntime/7.24.0")
val headers_0 = Map("Content-Type" -> "application/json")
val data = StringBody(
"""{"distance":662.3054387220024,
"ip1Info":{"query":"8.8.8.8",
"country":"United States",
"city":"Ashburn",
"lat":39.03,
"lon":-77.5},
"ip2Info":{"query":"93.184.216.34"
,"country":"United States",
"city":"Norwell",
"lat":42.1596,
"lon":-70.8217}}""")
val scn = scenario("PostSimulation")
.exec(http("request_1")
.post("/ip/8.8.8.8")
.headers(headers_0)
.body(data).asJson
.check(status.is(200)))
.exec(http("request_2")
.post("/ip/8.8.8.8")
.headers(headers_0)
.body(data).asJson
.check(status.is(200)))
.exec(http("request_3")
.post("/ip/8.8.8.8")
.headers(headers_0)
.body(data).asJson
.check(status.is(200)))
setUp(scn.inject(atOnceUsers(1))).protocols(httpProtocol)
}
Error:
sbt:akka-http-microservice> gatling:testOnly PostSimulation
[info] compiling 1 Scala source to /home/mehveen/akka-http-microservice/target/scala-2.13/test-classes ...
io.netty.util.internal.NativeLibraryLoader.loadFirstAvailable(NativeLibraryLoader.java:96)
at io.netty.handler.ssl.OpenSsl.loadTcNative(OpenSsl.java:592)
at io.netty.handler.ssl.OpenSsl.<clinit>(OpenSsl.java:136)
at io.gatling.http.util.SslContextsFactory.<init>(SslContexts.scala:52)
at io.gatling.http.engine.HttpEngine$.apply(HttpEngine.scala:49)
at io.gatling.http.protocol.HttpProtocol$$anon$1.newComponents(HttpProtocol.scala:52)
at io.gatling.core.protocol.ProtocolComponentsRegistry.$anonfun$components$1(Protocol.scala:68)
at scala.collection.mutable.HashMap.getOrElseUpdate(HashMap.scala:454)
at io.gatling.core.protocol.ProtocolComponentsRegistry.componentsFactory$1(Protocol.scala:68)
at io.gatling.core.protocol.ProtocolComponentsRegistry.comps$1(Protocol.scala:71)
at io.gatling.core.protocol.ProtocolComponentsRegistry.$anonfun$components$4(Protocol.scala:73)
at scala.collection.mutable.HashMap.getOrElseUpdate(HashMap.scala:454)
at io.gatling.core.protocol.ProtocolComponentsRegistry.components(Protocol.scala:73)
at io.gatling.http.action.HttpActionBuilder.lookUpHttpComponents(HttpActionBuilder.scala:26)
at io.gatling.http.action.HttpRequestActionBuilder.build(HttpRequestActionBuilder.scala:33)
at io.gatling.core.structure.BuildAction.$anonfun$build$1(BuildAction.scala:28)
at scala.collection.LinearSeqOps.foldLeft(LinearSeq.scala:169)
at scala.collection.LinearSeqOps.foldLeft$(LinearSeq.scala:165)
at scala.collection.immutable.List.foldLeft(List.scala:79)
at io.gatling.core.structure.BuildAction.build(BuildAction.scala:27)
at io.gatling.core.structure.BuildAction.build$(BuildAction.scala:26)
at io.gatling.core.structure.ScenarioBuilder.build(StructureBuilder.scala:51)
at io.gatling.core.structure.PopulationBuilder.build(PopulationBuilder.scala:100)
at io.gatling.core.scenario.SimulationParams.buildScenario(Simulation.scala:170)
at io.gatling.core.scenario.SimulationParams.$anonfun$scenarios$1(Simulation.scala:174)
at scala.collection.immutable.List.map(List.scala:246)
at io.gatling.core.scenario.SimulationParams.scenarios(Simulation.scala:174)
at io.gatling.app.Runner.run0(Runner.scala:82)
at io.gatling.app.Runner.run(Runner.scala:52)
at io.gatling.app.Gatling$.start(Gatling.scala:80)
at io.gatling.app.Gatling$.fromArgs(Gatling.scala:45)
at io.gatling.sbt.GatlingTask.liftedTree1$1(GatlingTask.scala:52)
at io.gatling.sbt.GatlingTask.execute(GatlingTask.scala:51)
at sbt.ForkMain$Run.lambda$runTest$1(ForkMain.java:413)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:834)
17:06:20.933 [pool-1-thread-1] DEBUG io.netty.util.internal.NativeLibraryLoader - netty_tcnative_linux_x86_64 cannot be loaded from java.library.path, now trying export to -Dio.netty.native.workdir: /tmp
java.lang.UnsatisfiedLinkError: no netty_tcnative_linux_x86_64 in java.library.path: [/usr/java/packages/lib, /usr/lib64, /lib64, /lib, /usr/lib]
at java.base/java.lang.ClassLoader.loadLibrary(ClassLoader.java:2660)
at java.base/java.lang.Runtime.loadLibrary0(Runtime.java:827)
at java.base/java.lang.System.loadLibrary(System.java:1871)
at io.netty.util.internal.NativeLibraryUtil.loadLibrary(NativeLibraryUtil.java:38)
at io.netty.util.internal.NativeLibraryLoader.loadLibrary(NativeLibraryLoader.java:351)
at io.netty.util.internal.NativeLibraryLoader.load(NativeLibraryLoader.java:136)
at io.netty.util.internal.NativeLibraryLoader.loadFirstAvailable(NativeLibraryLoader.java:96)
at io.netty.handler.ssl.OpenSsl.loadTcNative(OpenSsl.java:592)
at io.netty.handler.ssl.OpenSsl.<clinit>(OpenSsl.java:136)
at io.gatling.http.util.SslContextsFactory.<init>(SslContexts.scala:52)
at io.gatling.http.engine.HttpEngine$.apply(HttpEngine.scala:49)
at io.gatling.http.protocol.HttpProtocol$$anon$1.newComponents(HttpProtocol.scala:52)
at io.gatling.core.protocol.ProtocolComponentsRegistry.$anonfun$components$1(Protocol.scala:68)
at scala.collection.mutable.HashMap.getOrElseUpdate(HashMap.scala:454)
at io.gatling.core.protocol.ProtocolComponentsRegistry.componentsFactory$1(Protocol.scala:68)
at io.gatling.core.protocol.ProtocolComponentsRegistry.comps$1(Protocol.scala:71)
at io.gatling.core.protocol.ProtocolComponentsRegistry.$anonfun$components$4(Protocol.scala:73)
at scala.collection.mutable.HashMap.getOrElseUpdate(HashMap.scala:454)
at io.gatling.core.protocol.ProtocolComponentsRegistry.components(Protocol.scala:73)
content: UnpooledHeapByteBuf(ridx: 0, widx: 265, cap: 265/265))
POST /ip/8.8.8.8 HTTP/1.1
accept: application/json
user-agent: PostmanRuntime/7.24.0
accept-encoding: gzip, deflate
host: localhost:9000
content-type: application/json
content-length: 265, content=null}
17:06:23.538 [gatling-1-2] DEBUG io.gatling.http.client.impl.HttpAppHandler - Read msg='DefaultHttpResponse(decodeResult: success, version: HTTP/1.1)
HTTP/1.1 400 Bad Request
Server: akka-http/10.2.4
Date: Fri, 23 Apr 2021 12:06:23 GMT
Content-Type: text/plain; charset=UTF-8
Content-Length: 166'
17:06:23.543 [gatling-1-2] DEBUG io.gatling.http.client.impl.HttpAppHandler - Read msg='DefaultLastHttpContent(data: PooledSlicedByteBuf(ridx: 0, widx: 166, cap: 166/166, unwrapped: PooledUnsafeDirectByteBuf(ridx: 319, widx: 319, cap: 2048)), decoderResult: success)'
17:06:23.563 [gatling-1-2] DEBUG io.gatling.http.engine.response.DefaultStatsProcessor - Request 'request_1' failed for user 1: status.find.is(200), but actually found 400
17:06:23.583 [gatling-1-2] DEBUG io.gatling.http.engine.response.DefaultStatsProcessor -
>>>>>>>>>>>>>>>>>>>>>>>>>>
Request:
request_1: KO status.find.is(200), but actually found 400
=========================
Session:
Session(PostSimulation,1,Map(gatling.http.ssl.sslContexts -> io.gatling.http.util.SslContexts#6bb54726, gatling.http.cache.dns -> io.gatling.http.resolver.ShufflingNameResolver#4971b2c, gatling.http.cache.baseUrl -> http://localhost:9000),KO,List(),io.gatling.core.protocol.ProtocolComponentsRegistry$$Lambda$474/0x00000001004fb040#7b4036c5,io.netty.channel.epoll.EpollEventLoop#4d79eb73)
=========================
HTTP request:
POST http://localhost:9000/ip/8.8.8.8
headers:
accept: application/json
user-agent: PostmanRuntime/7.24.0
accept-encoding: gzip, deflate
host: localhost:9000
content-type: application/json
content-length: 265
body:StringChunksRequestBody{contentType='application/json', charset=UTF-8, content={"distance":662.3054387220024,
"ip1Info":{"query":"8.8.8.8",
"country":"United States",
"city":"Ashburn",
"lat":39.03,
"lon":-77.5},
"ip2Info":{"query":"93.184.216.34"
,"country":"United States",
"city":"Norwell",
"lat":42.1596,
"lon":-70.8217}}}
=========================
HTTP response:
status:
400 Bad Request
headers:
Server: akka-http/10.2.4
Date: Fri, 23 Apr 2021 12:06:23 GMT
Content-Type: text/plain; charset=UTF-8
Content-Length: 166
body:
The request content was malformed:
DecodingFailure at .ip1: Attempt to decode value on failed cursor
DecodingFailure at .ip2: Attempt to decode value on failed cursor
<<<<<<<<<<<<<<<<<<<<<<<<<
17:06:23.585 [gatling-1-2] DEBUG io.gatling.http.engine.tx.HttpTxExecutor - Sending request=request_2 uri=http://localhost:9000/ip/8.8.8.8: scenario=PostSimulation, userId=1
17:06:23.586 [gatling-1-2] DEBUG io.gatling.http.client.impl.HttpAppHandler - Write request WritableRequest{request=DefaultFullHttpRequest(decodeResult: success, version: HTTP/1.1, content: UnpooledHeapByteBuf(ridx: 0, widx: 265, cap: 265/265))
POST /ip/8.8.8.8 HTTP/1.1
accept: application/json
user-agent: PostmanRuntime/7.24.0
accept-encoding: gzip, deflate
host: localhost:9000
content-type: application/json
content-length: 265, content=null}
17:06:23.592 [gatling-1-2] DEBUG io.gatling.http.client.impl.HttpAppHandler - Read msg='DefaultHttpResponse(decodeResult: success, version: HTTP/1.1)
HTTP/1.1 400 Bad Request
Server: akka-http/10.2.4
Date: Fri, 23 Apr 2021 12:06:23 GMT
Content-Type: text/plain; charset=UTF-8
Content-Length: 166'
17:06:23.593 [gatling-1-2] DEBUG io.gatling.http.client.impl.HttpAppHandler - Read msg='DefaultLastHttpContent(data: PooledSlicedByteBuf(ridx: 0, widx: 166, cap: 166/166, unwrapped: PooledUnsafeDirectByteBuf(ridx: 319, widx: 319, cap: 2048)), decoderResult: success)'
17:06:23.593 [gatling-1-2] DEBUG io.gatling.http.engine.response.DefaultStatsProcessor - Request 'request_2' failed for user 1: status.find.is(200), but actually found 400
17:06:23.595 [gatling-1-2] DEBUG io.gatling.http.engine.response.DefaultStatsProcessor -
>>>>>>>>>>>>>>>>>>>>>>>>>>
Request:
request_2: KO status.find.is(200), but actually found 400
=========================
Session:
Session(PostSimulation,1,Map(gatling.http.ssl.sslContexts -> io.gatling.http.util.SslContexts#6bb54726, gatling.http.cache.dns -> io.gatling.http.resolver.ShufflingNameResolver#4971b2c, gatling.http.cache.baseUrl -> http://localhost:9000),KO,List(),io.gatling.core.protocol.ProtocolComponentsRegistry$$Lambda$474/0x00000001004fb040#7b4036c5,io.netty.channel.epoll.EpollEventLoop#4d79eb73)
=========================
HTTP request:
POST http://localhost:9000/ip/8.8.8.8
headers:
accept: application/json
user-agent: PostmanRuntime/7.24.0
accept-encoding: gzip, deflate
host: localhost:9000
content-type: application/json
content-length: 265
body:StringChunksRequestBody{contentType='application/json', charset=UTF-8, content={"distance":662.3054387220024,
"ip1Info":{"query":"8.8.8.8",
"country":"United States",
"city":"Ashburn",
"lat":39.03,
"lon":-77.5},
"ip2Info":{"query":"93.184.216.34"
,"country":"United States",
"city":"Norwell",
"lat":42.1596,
"lon":-70.8217}}}
=========================
HTTP response:
status:
400 Bad Request
headers:
Server: akka-http/10.2.4
Date: Fri, 23 Apr 2021 12:06:23 GMT
Content-Type: text/plain; charset=UTF-8
Content-Length: 166
body:
The request content was malformed:
DecodingFailure at .ip1: Attempt to decode value on failed cursor
DecodingFailure at .ip2: Attempt to decode value on failed cursor
<<<<<<<<<<<<<<<<<<<<<<<<<
17:06:23.597 [gatling-1-2] DEBUG io.gatling.http.engine.tx.HttpTxExecutor - Sending request=request_3 uri=http://localhost:9000/ip/8.8.8.8: scenario=PostSimulation, userId=1
17:06:23.598 [gatling-1-2] DEBUG io.gatling.http.client.impl.HttpAppHandler - Write request WritableRequest{request=DefaultFullHttpRequest(decodeResult: success, version: HTTP/1.1, content: UnpooledHeapByteBuf(ridx: 0, widx: 265, cap: 265/265))
POST /ip/8.8.8.8 HTTP/1.1
accept: application/json
user-agent: PostmanRuntime/7.24.0
accept-encoding: gzip, deflate
host: localhost:9000
content-type: application/json
content-length: 265, content=null}
17:06:23.610 [gatling-1-2] DEBUG io.gatling.http.client.impl.HttpAppHandler - Read msg='DefaultHttpResponse(decodeResult: success, version: HTTP/1.1)
HTTP/1.1 400 Bad Request
Server: akka-http/10.2.4
Date: Fri, 23 Apr 2021 12:06:23 GMT
Content-Type: text/plain; charset=UTF-8
Content-Length: 166'
17:06:23.611 [gatling-1-2] DEBUG io.gatling.http.client.impl.HttpAppHandler - Read msg='DefaultLastHttpContent(data: PooledSlicedByteBuf(ridx: 0, widx: 166, cap: 166/166, unwrapped: PooledUnsafeDirectByteBuf(ridx: 319, widx: 319, cap: 1024)), decoderResult: success)'
17:06:23.612 [gatling-1-2] DEBUG io.gatling.http.engine.response.DefaultStatsProcessor - Request 'request_3' failed for user 1: status.find.is(200), but actually found 400
17:06:23.613 [gatling-1-2] DEBUG io.gatling.http.engine.response.DefaultStatsProcessor -
>>>>>>>>>>>>>>>>>>>>>>>>>>
Request:
request_3: KO status.find.is(200), but actually found 400
=========================
Session:
Session(PostSimulation,1,Map(gatling.http.ssl.sslContexts -> io.gatling.http.util.SslContexts#6bb54726, gatling.http.cache.dns -> io.gatling.http.resolver.ShufflingNameResolver#4971b2c, gatling.http.cache.baseUrl -> http://localhost:9000),KO,List(),io.gatling.core.protocol.ProtocolComponentsRegistry$$Lambda$474/0x00000001004fb040#7b4036c5,io.netty.channel.epoll.EpollEventLoop#4d79eb73)
=========================
HTTP request:
POST http://localhost:9000/ip/8.8.8.8
headers:
accept: application/json
user-agent: PostmanRuntime/7.24.0
accept-encoding: gzip, deflate
host: localhost:9000
content-type: application/json
content-length: 265
body:StringChunksRequestBody{contentType='application/json', charset=UTF-8, content={"distance":662.3054387220024,
"ip1Info":{"query":"8.8.8.8",
"country":"United States",
"city":"Ashburn",
"lat":39.03,
"lon":-77.5},
"ip2Info":{"query":"93.184.216.34"
,"country":"United States",
"city":"Norwell",
"lat":42.1596,
"lon":-70.8217}}}
=========================
HTTP response:
status:
400 Bad Request
headers:
Server: akka-http/10.2.4
Date: Fri, 23 Apr 2021 12:06:23 GMT
Content-Type: text/plain; charset=UTF-8
Content-Length: 166
body:
The request content was malformed:
DecodingFailure at .ip1: Attempt to decode value on failed cursor
DecodingFailure at .ip2: Attempt to decode value on failed cursor
<<<<<<<<<<<<<<<<<<<<<<<<<
17:06:23.613 [gatling-1-2] DEBUG io.gatling.core.action.Exit - End user #1
17:06:23.622 [GatlingSystem-akka.actor.default-dispatcher-6] DEBUG io.gatling.core.controller.inject.Injector - End user #PostSimulation
17:06:23.623 [GatlingSystem-akka.actor.default-dispatcher-6] INFO io.gatling.core.controller.inject.Injector - All users of scenario PostSimulation are stopped
17:06:23.625 [GatlingSystem-akka.actor.default-dispatcher-6] INFO io.gatling.core.controller.inject.Injector - Stopping
17:06:23.626 [GatlingSystem-akka.actor.default-dispatcher-7] INFO io.gatling.core.controller.Controller - Injector has stopped, initiating graceful stop
================================================================================
2021-04-23 17:06:23 0s elapsed
---- Requests ------------------------------------------------------------------
> Global (OK=0 KO=3 )
> request_1 (OK=0 KO=1 )
> request_2 (OK=0 KO=1 )
> request_3 (OK=0 KO=1 )
---- Errors --------------------------------------------------------------------
> status.find.is(200), but actually found 400 3 (100.0%)
---- PostSimulation ------------------------------------------------------------
[##########################################################################]100%
waiting: 0 / active: 0 / done: 1
================================================================================
17:06:23.776 [GatlingSystem-akka.actor.default-dispatcher-4] DEBUG io.gatling.core.controller.Controller - StatsEngine was stopped
Simulation PostSimulation completed in 0 seconds
17:06:23.782 [gatling-1-2] DEBUG io.netty.buffer.PoolThreadCache - Freed 5 thread-local buffer(s) from thread: gatling-1-2
Parsing log file(s)...
17:06:23.855 [pool-1-thread-1] INFO io.gatling.charts.stats.LogFileReader - Collected List(/home/mehveen/akka-http-microservice/target/gatling/postsimulation-20210423120620892/simulation.log) from postsimulation-20210423120620892
17:06:23.866 [pool-1-thread-1] INFO io.gatling.charts.stats.LogFileReader - First pass
17:06:23.871 [pool-1-thread-1] INFO io.gatling.charts.stats.LogFileReader - First pass done: read 6 lines
17:06:23.882 [pool-1-thread-1] INFO io.gatling.charts.stats.LogFileReader - Second pass
17:06:23.917 [pool-1-thread-1] INFO io.gatling.charts.stats.LogFileReader - Second pass: read 6 lines
Parsing log file(s) done
Generating reports...
================================================================================
---- Global Information --------------------------------------------------------
> request count 3 (OK=0 KO=3 )
> min response time 7 (OK=- KO=7 )
> max response time 175 (OK=- KO=175 )
> mean response time 65 (OK=- KO=65 )
> std deviation 78 (OK=- KO=78 )
> response time 50th percentile 13 (OK=- KO=13 )
> response time 75th percentile 94 (OK=- KO=94 )
> response time 95th percentile 159 (OK=- KO=159 )
> response time 99th percentile 172 (OK=- KO=172 )
> mean requests/sec 3 (OK=- KO=3 )
---- Response Time Distribution ------------------------------------------------
> t < 800 ms 0 ( 0%)
> 800 ms < t < 1200 ms 0 ( 0%)
> t > 1200 ms 0 ( 0%)
> failed 3 (100%)
---- Errors --------------------------------------------------------------------
> status.find.is(200), but actually found 400 3 (100.0%)
================================================================================
Reports generated in 0s.
Please open the following file: /home/mehveen/akka-http-microservice/target/gatling/postsimulation-20210423120620892/index.html
[info] Simulation PostSimulation successful.
[info] Simulation(s) execution ended.
[success] Total time: 8 s, completed 23 Apr. 2021, 5:06:24 pm**

Answer 1

Your request body doesn't match what the server expects for this API.
The request content was malformed:
DecodingFailure at .ip1: Attempt to decode value on failed cursor
DecodingFailure at .ip2: Attempt to decode value on failed cursor
seems to indicate that you're supposed to have ip1 and ip2 objects in your payload.
=== edit
What you're sending with Gatling:
{
"distance":662.3054387220024,
"ip1Info":{
"query":"8.8.8.8",
"country":"United States",
"city":"Ashburn",
"lat":39.03,
"lon":-77.5
},
"ip2Info":{
"query":"93.184.216.34",
"country":"United States",
"city":"Norwell",
"lat":42.1596,
"lon":-70.8217
}
}
What you're sending with curl (-d option with the data wrapped in single quotes, I guess what comes after that is ignored):
{
"ip1":"8.8.8.8",
"ip2":"93.184.216.34"
}