Eventual consistency

Technical Preview

The Rust SDK is a technical preview. Its API surface may still evolve and changes may not follow semantic versioning. Pin an exact version if you need stability.

Camunda's read APIs are eventually consistent. Wrap a read in eventual to poll through replication lag, transparently retrying 404s:

use camunda_orchestration_sdk::ConsistencyOptions;

// Reads are eventually consistent: poll until the instance is visible, retrying 404s.
let instance = client
    .eventual(ConsistencyOptions::default(), || {
        let client = client.clone();
        let key = process_instance_key.clone();
        async move { client.get_process_instance(&key).await }
    })
    .await?;