Rust product analytics installation

Install the posthog-rs crate by adding it to your Cargo.toml.

[dependencies]
posthog-rs = "0.14"

Next, set up the client with your PostHog project key.

let client = posthog_rs::client("<ph_project_token>").await;

Blocking client

Our Rust SDK supports both blocking and async clients. The async client is the default and is recommended for most use cases.

If you need to use a synchronous client instead – like we do in our CLI –, you can opt into it by disabling the asynchronous feature on your Cargo.toml file.

[dependencies]
posthog-rs = { version = "0.14", default-features = false }

With the blocking client, the same methods are available without .await. Either way, capture is non-blocking: it hands the event to a background worker that batches and sends it, so it returns immediately instead of waiting on the network. Because delivery happens in the background, call flush() or shutdown() before your program exits, or buffered events may be lost.