reqwest-middleware/reqwest-tracing

reqwest-tracing

Opentracing middleware implementation for reqwest-middleware.

Overview

Attach TracingMiddleware to your client to automatically trace HTTP requests:

# Cargo.toml
# ...
[dependencies]
opentelemetry = "0.16"
reqwest = "0.11"
reqwest-middleware = "0.1.1"
reqwest-retry = "0.1.1"
reqwest-tracing = { version = "0.1.2", features = ["opentelemetry_0_16"] }
tokio = { version = "1.12.0", features = ["macros", "rt-multi-thread"] }
tracing = "0.1"
tracing-opentelemetry = "0.15"
tracing-subscriber = "0.2"

use opentelemetry::sdk::export::trace::stdout;
use reqwest_middleware::ClientBuilder;
use reqwest_tracing::TracingMiddleware;
use tracing_subscriber::layer::SubscriberExt;
use tracing_subscriber::Registry;

#[tokio::main]
async fn main() {
  let tracer = stdout::new_pipeline().install_simple();
  let telemetry = tracing_opentelemetry::layer().with_tracer(tracer);
  let subscriber = Registry::default().with(telemetry);
  tracing::subscriber::set_global_default(subscriber).unwrap();

  run().await;
}

async fn run() {
  let client = ClientBuilder::new(reqwest::Client::new())
    .with(TracingMiddleware)
    .build();

  client.get("https://truelayer.com").send().await.unwrap();
}

$ cargo run
SpanData { span_context: SpanContext { trace_id: ...

See the tracing crate for more information on how to set up a tracing subscriber to make use of the spans.

How to install

Add reqwest-tracing to your dependencies. Optionally enable opentelemetry integration by enabling an opentelemetry version feature:

[dependencies]
# ...
reqwest-tracing = { version = "0.1.0", features = ["opentelemetry_0_16"] }

Available opentelemetry features are opentelemetry_0_16, opentelemetry_0_15, opentelemetry_0_14 and opentelemetry_0_13.

License

^{Licensed under either of Apache License, Version 2.0 or MIT license at your option.}
_{Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.}