aion-core

Pure domain model and shared vocabulary for Aion durable workflows. This leaf crate contains the identifiers, payload carrier, event vocabulary, workflow filters, schedules, search attributes, statuses, and error types used by servers, stores, SDKs, and workers.

Install

[dependencies]
aion-core = "0.4.0"

Key public types

• WorkflowId, RunId, ActivityId, and TimerId identify workflow executions and side effects.
• Payload and ContentType carry serialized user data through events and APIs.
• Event and EventEnvelope describe durable history records.
• WorkflowFilter, WorkflowSummary, and WorkflowStatus support visibility APIs.
• ScheduleConfig, TriggerSpec, and schedule policies model recurring starts.

Minimal usage

use aion_core::{Payload, WorkflowId};
use serde_json::json;

let workflow_id = WorkflowId::new_v4();
let payload = Payload::from_json(&json!({ "workflow_id": workflow_id.to_string() }))?;
let decoded = payload.to_json()?;
assert_eq!(decoded["workflow_id"], workflow_id.to_string());
# Ok::<(), Box<dyn std::error::Error>>(())