I am trying to decode proto data. But the proto is not properly decoded.
This is how I am doing:
decodedStr, err := base64.StdEncoding.DecodeString(request.Body)
if err != nil {
panic("malformed input")
}
data := &tracepb.ExportTraceServiceRequest{}
if err := proto.Unmarshal(decodedStr, data); err != nil {
log.Fatalln("Failed to parse:", err)
}
log.Printf("Response - %v", data)
The output is like this:
Response - resource_spans:{resource:{attributes:{key:"service.name" value:{string_value:"node_app"}} attributes:{key:"telemetry.sdk.language" value:{string_value:"nodejs"}} attributes:{key:"telemetry.sdk.name" value:{string_value:"opentelemetry"}} attributes:{key:"telemetry.sdk.version" value:{string_value:"1.8.0"}} attributes:{key:"process.pid" value:{int_value:1}} attributes:{key:"process.executable.name" value:{string_value:"node"}} attributes:{key:"process.command" value:{string_value:"/usr/app/index.js"}} attributes:{key:"process.command_line" value:{string_value:"/usr/local/bin/node /usr/app/index.js"}} attributes:{key:"process.runtime.version" value:{string_value:"18.13.0"}} attributes:{key:"process.runtime.name" value:{string_value:"nodejs"}} attributes:{key:"process.runtime.description" value:{string_value:"Node.js"}}} scope_spans:{scope:{name:"@opentelemetry/instrumentation-express" version:"0.32.0"} spans:{trace_id:"\xb5\x81\x91\x8b\x02\x9a/\xf1\x08\x06\xaf~\xea\x9fQ\xc0" span_id:"T\x06\x89m\x1ex\xf9A" parent_span_id:"?\xbc\x18`O\xa5\xb8\xe1" name:"middleware - query" kind:SPAN_KIND_INTERNAL start_time_unix_nano:1673434036590614272 end_time_unix_nano:1673434036590671104 attributes:{key:"http.route" value:{string_value:"/"}} attributes:{key:"express.name" value:{string_value:"query"}} attributes:{key:"express.type" value:{string_value:"middleware"}} status:{}} spans:{trace_id:"\xb5\x81\x91\x8b\x02\x9a/\xf1\x08\x06\xaf~\xea\x9fQ\xc0" span_id:"\xd5c\xf7>\xf6Cxz" parent_span_id:"?\xbc\x18`O\xa5\xb8\xe1" name:"middleware - expressInit" kind:SPAN_KIND_INTERNAL start_time_unix_nano:1673434036590760704
Not sure why traceId is shown like this:
spans:{trace_id:"\xb5\x81\x91\x8b\x02\x9a/\xf1\x08\x06\xaf~\xea\x9fQ\xc0"
Am new to GoLang. Any help would be greatly appreciated
Used encoding/hex module's hex.EncodeToString() function to convert bytes to hex