Open
Description
Describe the bug
Method that receives and parses JSON fails from time to time with an error zio.http.codec.HttpCodecError$MalformedBody: Malformed request body failed to decode: Unexpected end of input
JSON content is valid and static (checked in the browser developer tools) but sometimes the page loads successfully, sometimes fails with the error message above.
We're using zio-http 3.3.3 Endpoint API and zio-json 0.7.42 for requesting a server for data.
Simplified model is TreeNode(data: Data, children: List[TreeNode])
Response of the request is around 17k bytes.
To Reproduce
Steps to reproduce the behaviour:
- Refresh the page that contains this method multiple times
Expected behaviour
Page loads successfully, no error messages appear in the console.
Desktop (please complete the following information):
- OS: Windows 11 Pro 24H2
- Browser [Chrome 137.0.7151.104, Firefox 139.0.4]
Additional context
Full error message:
timestamp=2025-06-16T08:59:57.725Z level=ERROR thread=#zio-fiber-2481762 message="Error occurred during loadGroups (Invocation(Endpoint(GET /api/groups,Combine(Method(<function1>,0),Path(/api/groups,0),zio.http.codec.Combiner$$anon$1@80),Annotated(Combine(Content(Choices(ListMap(MediaType(application,json,true,false,List(json, map),Map(),Map()) -> BinaryCodecWithSchema(<function1>,Sequence(CaseClass7(Nominal(Chunk(datasapience,licman),Chunk(),GroupDto), Field(id,$Lazy$),Field(name,$Lazy$),Field(description,$Lazy$),Field(groupId,$Lazy$),Field(subgroups,$Lazy$),Field(modules,$Lazy$),Field(metricTemplates,$Lazy$)), List)), MediaType(application,protobuf,false,true,List(),Map(),Map()) -> BinaryCodecWithSchema(<function1>,Sequence(CaseClass7(Nominal(Chunk(datasapience,licman),Chunk(),GroupDto), Field(id,$Lazy$),Field(name,$Lazy$),Field(description,$Lazy$),Field(groupId,$Lazy$),Field(subgroups,$Lazy$),Field(modules,$Lazy$),Field(metricTemplates,$Lazy$)), List)), MediaType(text,plain,true,false,List(txt, text, conf, def, list, log, in, ini),Map(),Map()) -> BinaryCodecWithSchema(<function1>,Sequence(CaseClass7(Nominal(Chunk(datasapience,licman),Chunk(),GroupDto), Field(id,$Lazy$),Field(name,$Lazy$),Field(description,$Lazy$),Field(groupId,$Lazy$),Field(subgroups,$Lazy$),Field(modules,$Lazy$),Field(metricTemplates,$Lazy$)), List)), MediaType(application,octet-stream,false,true,List(bin, dms, lrf, mar, so, dist, distz, pkg, bpk, dump, elc, deploy, exe, dll, deb, dmg, iso, img, msi, msp, msm, buffer),Map(),Map()) -> BinaryCodecWithSchema(<function1>,Sequence(CaseClass7(Nominal(Chunk(datasapience,licman),Chunk(),GroupDto), Field(id,$Lazy$),Field(name,$Lazy$),Field(description,$Lazy$),Field(groupId,$Lazy$),Field(subgroups,$Lazy$),Field(modules,$Lazy$),Field(metricTemplates,$Lazy$)), List)))),None,0),Status(<function1>,0),zio.http.codec.CombinerLowPriority1$$anon$2@81),Documented(Paragraph(Text(Found groups with its modules)))),TransformOrFail(TransformOrFail(Fallback(TransformOrFail(Fallback(Combine(Content(Choices(ListMap(MediaType(application,json,true,false,List(json, map),Map(),Map()) -> BinaryCodecWithSchema(<function1>,CaseClass0(Nominal(Chunk(datasapience,licman),Chunk(),NotAuthenticated), )), MediaType(application,protobuf,false,true,List(),Map(),Map()) -> BinaryCodecWithSchema(<function1>,CaseClass0(Nominal(Chunk(datasapience,licman),Chunk(),NotAuthenticated), )), MediaType(text,plain,true,false,List(txt, text, conf, def, list, log, in, ini),Map(),Map()) -> BinaryCodecWithSchema(<function1>,CaseClass0(Nominal(Chunk(datasapience,licman),Chunk(),NotAuthenticated), )), MediaType(application,octet-stream,false,true,List(bin, dms, lrf, mar, so, dist, distz, pkg, bpk, dump, elc, deploy, exe, dll, deb, dmg, iso, img, msi, msp, msm, buffer),Map(),Map()) -> BinaryCodecWithSchema(<function1>,CaseClass0(Nominal(Chunk(datasapience,licman),Chunk(),NotAuthenticated), )))),Some(error-response),0),Status(<function1>,0),zio.http.codec.CombinerLowPriority1$$anon$2@82),Combine(Content(Choices(ListMap(MediaType(application,json,true,false,List(json, map),Map(),Map()) -> BinaryCodecWithSchema(<function1>,CaseClass0(Nominal(Chunk(datasapience,licman),Chunk(),NotAuthorized), )), MediaType(application,protobuf,false,true,List(),Map(),Map()) -> BinaryCodecWithSchema(<function1>,CaseClass0(Nominal(Chunk(datasapience,licman),Chunk(),NotAuthorized), )), MediaType(text,plain,true,false,List(txt, text, conf, def, list, log, in, ini),Map(),Map()) -> BinaryCodecWithSchema(<function1>,CaseClass0(Nominal(Chunk(datasapience,licman),Chunk(),NotAuthorized), )), MediaType(application,octet-stream,false,true,List(bin, dms, lrf, mar, so, dist, distz, pkg, bpk, dump, elc, deploy, exe, dll, deb, dmg, iso, img, msi, msp, msm, buffer),Map(),Map()) -> BinaryCodecWithSchema(<function1>,CaseClass0(Nominal(Chunk(datasapience,licman),Chunk(),NotAuthorized), )))),Some(error-response),0),Status(<function1>,0),zio.http.codec.CombinerLowPriority1$$anon$2@83),zio.http.codec.AlternatorLowPriority3$$anon$4@84,IsHttpCodecError),<function1>,<function1>),Combine(Content(Choices(ListMap(MediaType(application,json,true,false,List(json, map),Map(),Map()) -> BinaryCodecWithSchema(<function1>,CaseClass1(Field(msg,$Lazy$))), MediaType(application,protobuf,false,true,List(),Map(),Map()) -> BinaryCodecWithSchema(<function1>,CaseClass1(Field(msg,$Lazy$))), MediaType(text,plain,true,false,List(txt, text, conf, def, list, log, in, ini),Map(),Map()) -> BinaryCodecWithSchema(<function1>,CaseClass1(Field(msg,$Lazy$))), MediaType(application,octet-stream,false,true,List(bin, dms, lrf, mar, so, dist, distz, pkg, bpk, dump, elc, deploy, exe, dll, deb, dmg, iso, img, msi, msp, msm, buffer),Map(),Map()) -> BinaryCodecWithSchema(<function1>,CaseClass1(Field(msg,$Lazy$))))),Some(error-response),0),Status(<function1>,0),zio.http.codec.CombinerLowPriority1$$anon$2@85),zio.http.codec.AlternatorLowPriority3$$anon$4@86,IsHttpCodecError),<function1>,<function1>),<function1>,<function1>),Combine(Content(Choices(ListMap(MediaType(text,html,true,false,List(html, htm, shtml),Map(),Map()) -> BinaryCodecWithSchema(<function1>,Transform(Transform(Primitive(string,Chunk()), SourceLocation(/home/runner/work/zio-http/zio-http/zio-http/shared/src/main/scala/zio/http/template/Dom.scala,89,56)), SourceLocation(/home/runner/work/zio-http/zio-http/zio-http/shared/src/main/scala/zio/http/codec/HttpContentCodec.scala,263,5))), MediaType(application,json,true,false,List(json, map),Map(),Map()) -> BinaryCodecWithSchema(<function1>,Transform(CaseClass2(Nominal(Chunk(zio,http,codec),Chunk(HttpContentCodec),DefaultCodecError), Field(name,$Lazy$),Field(message,$Lazy$)), SourceLocation(/home/runner/work/zio-http/zio-http/zio-http/shared/src/main/scala/zio/http/codec/HttpContentCodec.scala,272,5))))),None,0),Status(<function1>,0),zio.http.codec.CombinerLowPriority1$$anon$2@87),Paragraph(Text(Retrieves all available groups with its modules)),Bearer),undefined))" cause="zio.http.codec.HttpCodecError$MalformedBody: Malformed request body failed to decode: Unexpected end of input
" location=datasapience.licman.SecuredServer.loadGroups file=SecuredServer.scala line=35 RuntimePlatformSpecific.scala:59:44
BY RuntimePlatformSpecific.scala:59
BY ZLogger.scala:76
t3E FiberRuntime.scala:794
tN$/< ZIO.scala:4209
pa app.d46bbcd7.js:1
t FiberRuntime.scala:1084
t FiberRuntime.scala:1067
t3w FiberRuntime.scala:412
e FiberRuntime.scala:487
OB FiberRuntime.scala:137
UY MacrotaskExecutor.scala:32
ca WrappedDictionary.scala:192
t MacrotaskExecutor.scala:74
tAP MacrotaskExecutor.scala:118
tAF MacrotaskExecutor.scala:123
p app.d46bbcd7.js:1
tlY Any.scala:146