Context propagation between microservices

[isma3ilovich]

Hello,

I need to propagate context between two microservices

I use the function bellow to inject my context in the first microservice

`std::string PwcOtelCommonTracer::inject( nostd::shared_ptrtrace::Span &rootSpan)
{
std::map<std::string, std::string> headers;

opentelemetry::trace::Scope scope(rootSpan);
propagatorFormat.Inject(Setter, headers,opentelemetry::context::RuntimeContext::GetCurrent());

return headers["traceparent"];
}`

The function bellow to extract the context in the second microservice:

`void PwcOtelCommonTracer::extract( std::string headers)
{
std::map<std::string, std::string> carrier;
carrier[std::string("traceparent")] = std::string(headers);

auto current_ctx = opentelemetry::context::RuntimeContext::GetCurrent();
auto ctx         = propagatorFormat.Extract(Getter, carrier, current_ctx);
auto token       = opentelemetry::context::RuntimeContext::Attach(ctx);

}`

but when i create new span it isn't attached with the propagated context

auto rootSpan=getTracer()->GetCurrentSpan(); trace::Scope scope(rootSpan); getTracer()->StartSpan(name);

Could you help me please ?

Thanks .

[lalitb]

@isma3ilovich - Would you mind raising ticket for this, will take a look into it.

[isma3ilovich]

@lalitb thank you for your reply .
I slove the problem by using

auto current_ctx = opentelemetry::context::RuntimeContext::GetCurrent(); auto ctx = propagatorFormat.Extract(Getter, carrier, current_ctx); /*auto token = opentelemetry::context::RuntimeContext::Attach(ctx);*/ auto ctx2_span = ctx.GetValue(trace::kSpanKey); auto rootSpan = nostd::get<nostd::shared_ptr<trace::Span>>(ctx2_span); return rootSpan;