Liudmila Molkova lmolkova

HTTP

P0 - Define span modelling conventions for HTTP client spans #1747
Replace http.target with http.path and http.query? #2056
Remove http.XX_content_length* semantic attributes #2028
P0 - Confirm that HTTP instrumentations can provide sampling-relevant attributes at creation time #2011
P? - required/optional #2114

Semantic convention around retry attempts? #1306
Adding semantic conventions for setting attributes to record retry behavior [#729](https://github.com/open-telemetry/opentelemetry-sp

Azure SDK supports global configuration through Common environment variables
.NET allows to configure SDKs through appsettings.json or any other MS.Extensions.Configuration-compatible source using additional Microsoft.Extensions.Azure package.
- .NET configuration and examples
Java Azure Spring Cloud works on extensive list of configuration options
Cloud Configuration draft

	package com.example.http;

	import com.squareup.okhttp.Interceptor;
	import com.squareup.okhttp.OkHttpClient;
	import com.squareup.okhttp.Request;
	import com.squareup.okhttp.Response;

	import java.io.IOException;

	import io.opentelemetry.api.trace.SpanKind;

	package org.example;

	import io.opentelemetry.api.trace.Span;
	import io.opentelemetry.api.trace.StatusCode;
	import io.opentelemetry.api.trace.Tracer;
	import io.opentelemetry.context.Scope;
	import io.opentelemetry.exporter.jaeger.JaegerGrpcSpanExporter;
	import io.opentelemetry.sdk.OpenTelemetrySdk;
	import io.opentelemetry.sdk.common.CompletableResultCode;
	import io.opentelemetry.sdk.trace.ReadableSpan;

	private static final Method SET_REACTOR_CONTEXT_METHOD = getStoreContextMethod();
	static Method getStoreContextMethod() {
	try {
	Class<?> contextPropagationOperatorClass = Class.forName("io.opentelemetry.javaagent.shaded.instrumentation.reactor.ContextPropagationOperator");
	Class<?> oteContextShaded = Class.forName("io.opentelemetry.javaagent.shaded.io.opentelemetry.context.Context");
	if (contextPropagationOperatorClass != null && oteContextShaded != null) {
	Method storeMethod = contextPropagationOperatorClass.getDeclaredMethod("storeOpenTelemetryContext", reactor.util.context.Context.class, oteContextShaded);
	if (storeMethod.getReturnType() == reactor.util.context.Context.class) {
	return storeMethod;
	}

	public static void main(String[] args) {
	// first call in not instrumented...
	doSomething();

	doSomething().transform(t -> {
	Span s = GlobalOpenTelemetry.getTracer("test")
	.spanBuilder("span")
	.startSpan();

	return t.doFinally(signal -> s.end())

	package org.example.functions;

	import com.azure.core.models.CloudEvent;
	import com.azure.core.util.serializer.TypeReference;
	import com.azure.messaging.eventgrid.EventGridEvent;
	import com.fasterxml.jackson.core.JsonProcessingException;
	import com.fasterxml.jackson.databind.ObjectMapper;
	import com.microsoft.azure.functions.ExecutionContext;
	import com.microsoft.azure.functions.HttpMethod;
	import com.microsoft.azure.functions.HttpRequestMessage;

	public static class MessagingExtensions
	{
	// potential addition to event hubs SDK. service bus is similar
	// The only concern is availability of ActivityContext prior to .NET 5
	// there is a potential to update DiagnosticSource, but it's problematic because of
	// version conflict: binding redirects on .NET Fx and version conflicts with Functions load contexts
	public static ActivityContext ExtractTraceContext(this EventData @event)
	{
	if (@event.Properties.TryGetValue("Diagnostic-Id", out var tp) && tp is string traceparent)
	{

	@Autowired
	ServiceBusSenderClient serviceBusClient;

	@PostMapping("/queues")
	public String send(@RequestParam("message") String message) {
	serviceBusClient.sendMessage(new ServiceBusMessage(message));
	return message;
	}