Unable to connect properly to API with HTTP Client Connector

[Nur Atiqah]

Hi All,

I'm using HTTP Client Connector to make an HTTP GET call. I configured the connection with HTTP Parser with Client Mode activated.

So i've added few headers and seems they are read. However, i received an error on http.body when i add below codes to its Output Map

metricsObj = java.lang.System.getProperties().get("metricsObj");
errorsObj = java.lang.System.getProperties().get("errorsObj");
returnPayload = {
status: (metrics==null)?"Not Runnning":"OK",
metrics: metricsObj,
errors: errorsObj}
work["http.body"]=toJson(returnPayload

This is what i received i run a debugger:
19:11:13,618 ERROR - CTGDIS266E Error in NextConnectorOperation. Exception occurred: java.lang.Exception: [HTTPClientConnector] CTGDIS183E Error while mapping attribute 'http.body' in the Output Attribute Map of Component 'HTTPClientConnector' (HTTPClientConnector.Output.http.body).
java.lang.Exception: [HTTPClientConnector] CTGDIS183E Error while mapping attribute 'http.body' in the Output Attribute Map of Component 'HTTPClientConnector' (HTTPClientConnector.Output.http.body).
at com.ibm.di.server.AttributeMapping.mapAttribute(AttributeMapping.java:287)
at com.ibm.di.server.AttributeMapping.mapEntry(AttributeMapping.java:510)
at com.ibm.di.server.AttributeMapping.mapEntry(AttributeMapping.java:361)
at com.ibm.di.server.AssemblyLineComponent.callreply(AssemblyLineComponent.java:2115)
at com.ibm.di.server.AssemblyLine.msExecuteNextConnector(AssemblyLine.java:3827)
at com.ibm.di.server.AssemblyLine.executeMainStep(AssemblyLine.java:3418)
at com.ibm.di.server.AssemblyLine.executeMainLoop(AssemblyLine.java:3026)
at com.ibm.di.server.AssemblyLine.executeMainLoop(AssemblyLine.java:3009)
at com.ibm.di.server.AssemblyLine.executeAL(AssemblyLine.java:2975)
at com.ibm.di.server.AssemblyLine.run(AssemblyLine.java:1338)
Caused by: java.lang.Exception: 'metrics' not found
at com.ibm.di.script.ScriptEngine.unWrap(ScriptEngine.java:977)
at com.ibm.di.script.ScriptEngine.interpret(ScriptEngine.java:942)
at com.ibm.di.script.ScriptEngine.interpret(ScriptEngine.java:925)
at com.ibm.di.server.AttributeMapping$SingleAttributeMap.eval(AttributeMapping.java:729)
at com.ibm.di.server.AttributeMapping.mapAttribute(AttributeMapping.java:281)
... 9 more

Idk whether this is the correct way to add http.body into the Output Map or there is another way to do so. Can anyone help me on this?

Thanks!