How to configure OpenTelemetrySdk endpoint when I want to report trace data to a locally deployed coze-loop.

[lennonn]

    public OpenTelemetrySdk init(){
        // 创建一个 OTLP HTTP 导出器
        Supplier<Map<String, String>> headersSupplier = () -> {
            Map<String, String> headers = new HashMap<>();
            headers.put("cozeloop-workspace-id", "7540****");
            headers.put("Authorization", "Bearer 531caf43076d81227e2bbbb49b3***");
            return headers;
        };
        OtlpHttpSpanExporter otlpExporter = OtlpHttpSpanExporter.builder()
                .setEndpoint("http://localhost:8082/v1/loop/opentelemetry/v1/traces") // 设置你的 OTLP 接收器的 URL
                //.setEndpoint("https://api.coze.cn/v1/loop/opentelemetry/v1/traces") // 设置你的 OTLP 接收器的 URL
                .setHeaders(headersSupplier)
                .build();

        // 创建 TracerProvider 并添加批量处理器
        SdkTracerProvider tracerProvider = SdkTracerProvider.builder()
                .addSpanProcessor(BatchSpanProcessor.builder(otlpExporter).build())
                .build();

        // 创建 OpenTelemetrySdk 实例
        OpenTelemetrySdk openTelemetrySdk = OpenTelemetrySdk.builder()
                .setTracerProvider(tracerProvider)
                .buildAndRegisterGlobal();
        return openTelemetrySdk;
    }

}

        Tracer tracer1 = init.getTracer("test-coze-loop-otl");
        // 创建根节点，存储userID和sessionID
        Span span = tracer1.spanBuilder("root-span")
                .setAttribute("user.id", "user-123456")
                .setAttribute("session.id", "session-123456")
                .startSpan();

        try (Scope ignored = span.makeCurrent()) {
            traceService.invokeAI();
        } finally {
            span.end();
        }

public OpenTelemetrySdk init(){
    // 创建一个 OTLP HTTP 导出器
    Supplier<Map<String, String>> headersSupplier = () -> {
        Map<String, String> headers = new HashMap<>();
        headers.put("cozeloop-workspace-id", "7540618059673763841");
        headers.put("Authorization", "Bearer 531caf43076d81227e2bbbb49b36f08fa6c5623cd4e0b194dc461cac21dc5c52");
        return headers;
    };
    OtlpHttpSpanExporter otlpExporter = OtlpHttpSpanExporter.builder()
            .setEndpoint("http://localhost:8082/v1/loop/opentelemetry/v1/traces") // 设置你的 OTLP 接收器的 URL
            //.setEndpoint("https://api.coze.cn/v1/loop/opentelemetry/v1/traces") // 设置你的 OTLP 接收器的 URL
            .setHeaders(headersSupplier)
            .build();

    // 创建 TracerProvider 并添加批量处理器
    SdkTracerProvider tracerProvider = SdkTracerProvider.builder()
            .addSpanProcessor(BatchSpanProcessor.builder(otlpExporter).build())
            .build();

    // 创建 OpenTelemetrySdk 实例
    OpenTelemetrySdk openTelemetrySdk = OpenTelemetrySdk.builder()
            .setTracerProvider(tracerProvider)
            .buildAndRegisterGlobal();
    return openTelemetrySdk;
}

}

    Tracer tracer1 = init.getTracer("test-coze-loop-otl");
    // 创建根节点，存储userID和sessionID
    Span span = tracer1.spanBuilder("root-span")
            .setAttribute("user.id", "user-123456")
            .setAttribute("session.id", "session-123456")
            .startSpan();

    try (Scope ignored = span.makeCurrent()) {
        traceService.invokeAI();
    } finally {
        span.end();
    }

• Failed to export spans. Server responded with HTTP status code 405. Error message: Unable to parse response body, HTTP status message: Not Allowed

[cyang302]

same issue #76 , We'll support this feature this week.

[lennonn]

same issue #76 , We'll support this feature this week.

I want to start a span in a Java project, then call a Python API. How can I pass the span context to the Python project?

[lsy357]

@taoyifan89 Please help check if this can be implemented.

[lennonn]

so.
Once I implement this feature, the main steps are as follows:

1. java start root span

2. set header when call python api
   ` public static Map<String, String> injectTraceHeaders(Span span) {
   SpanContext context = span.getSpanContext();
   Map<String, String> headers = new HashMap<>();
   if (context.isValid()) {
   // traceparent = version-traceId-spanId-flags
   String traceparent = String.format("00-%s-%s-%s",
   context.getTraceId(),
   context.getSpanId(),
   context.getTraceFlags().asHex());

        headers.put(TRACEPARENT, traceparent);
   
        if (!context.getTraceState().isEmpty()) {
            headers.put(TRACESTATE, context.getTraceState().toString());
        }
    }
    return headers;
   

   }`

3. python get parent span
   ` headers = dict(request.headers)
   parent_span = client.get_span_from_header(headers)
   //start child span
   span = self.client.start_span("llm_call", "llm", child_of=parent_span)

`

[taoyifan89]

@lennonn Yes, you are right.