Simulated Authentication service. More...

Collaboration diagram for AuthService:

Public Member Functions
trace_span	verify_token (const trace_context &parent_ctx, const std::string &)
	Verify user authentication.

Static Private Member Functions
static std::string	generate_span_id ()

Private Attributes
std::string	service_name_ = "auth_service"

Detailed Description

Simulated Authentication service.

Examples: multi_service_tracing_example.cpp.

Definition at line 116 of file multi_service_tracing_example.cpp.

Member Function Documentation

◆ generate_span_id()

static std::string AuthService::generate_span_id ( )

inlinestaticprivate

Examples: multi_service_tracing_example.cpp.

Definition at line 163 of file multi_service_tracing_example.cpp.

                                        {
        std::string id;
        for (int i = 0; i < 16; ++i) {
            id += "0123456789abcdef"[rand() % 16];
        }
        return id;
    }

Referenced by verify_token().

Here is the caller graph for this function:

◆ verify_token()

trace_span AuthService::verify_token	(	const trace_context &	parent_ctx,
		const std::string &	)

inline

Verify user authentication.

Examples: multi_service_tracing_example.cpp.

Definition at line 124 of file multi_service_tracing_example.cpp.

                                                                                 {
        std::cout << "\n[" << service_name_ << "] Verifying authentication token" << std::endl;
        std::cout << "   Received context: " << parent_ctx.to_w3c_traceparent() << std::endl;
 
        // Create child span
        trace_span span;
        span.trace_id = parent_ctx.trace_id;         // Same trace ID
        span.span_id = generate_span_id();           // New span ID
        span.parent_span_id = parent_ctx.span_id;    // Link to parent
        span.operation_name = "verify_token";
        span.service_name = service_name_;
        span.start_time = std::chrono::system_clock::now();
 
        // Inherit baggage from parent
        span.baggage = parent_ctx.baggage;
 
        // Add service-specific tags
        span.tags["auth.token_type"] = "bearer";
        span.tags["auth.method"] = "jwt";
 
        std::cout << "   → Created child span: " << span.span_id << std::endl;
        std::cout << "     Parent span: " << span.parent_span_id << std::endl;
        std::cout << "     Inherited baggage: user.id=" << span.baggage["user.id"] << std::endl;
 
        // Simulate authentication work
        std::this_thread::sleep_for(5ms);
 
        span.end_time = std::chrono::system_clock::now();
        span.calculate_duration();
        span.status = trace_span::status_code::ok;
        span.tags["auth.result"] = "success";
 
        std::cout << "   ✓ Authentication successful (duration: "
                  << span.duration.count() << "µs)" << std::endl;
 
        return span;
    }