add back http client

Author: wlawt

Cargo.lock

@@ -84,5 +84,5 @@ opentelemetry-otlp = { version = "0.31.0", features = [
 opentelemetry_sdk = { version = "0.31.0", features = ["rt-tokio", "rt-tokio-current-thread"] }
 tracing-opentelemetry = "0.32.0"
 reqwest = { version = "0.12", features = ["json"] }
-opentelemetry-datadog = { version = "0.19.0" }
+opentelemetry-datadog = { version = "0.19.0", features = ["reqwest-blocking-client", "reqwest-client"] }
 opentelemetry-semantic-conventions = { version = "0.31.0" }

Cargo.toml

@@ -152,8 +152,9 @@ async fn main() -> anyhow::Result<()> {
         .with_service_name(&filter_name)
         .with_api_version(ApiVersion::Version05)
         .with_trace_config(trace_cfg)
+        .with_http_client(reqwest::blocking::Client::new())
         .with_agent_endpoint(&otlp_endpoint) // TODO: do we need to configure HTTP client?
-        .install_batch()?;
+        .install_simple()?; // TODO: use batch exporter later
     global::set_tracer_provider(provider.clone());
     let scope = InstrumentationScope::builder(filter_name.clone())
         .with_version(env!("CARGO_PKG_VERSION"))