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Creating DAGs

Via CLI​

ash proai dag create user-processing-dag

Via YAML​

dag:
  name: user-processing-dag
  description: "User data processing workflow"
  schedule: "0 3 * * *"

  nodes:
    - id: extract
      type: source
      connector: prod-postgres
      query: "SELECT * FROM users"

    - id: validate
      type: transform
      depends_on: [extract]
      sql: "SELECT * FROM extract WHERE email IS NOT NULL"

    - id: enrich
      type: transform
      depends_on: [validate]
      sql: "SELECT * FROM validate LEFT JOIN geo_data ON validate.country = geo_data.code"

    - id: load
      type: destination
      depends_on: [enrich]
      connector: prod-snowflake
      table: enriched_users
`

## Via Designer

1. Open the DAG Builder
2. Add nodes from the component palette
3. Connect nodes by drawing edges
4. Configure each node's properties
5. Validate and save

## See Also

- [Dependencies](/docs/dag-builder/dependencies) — Node dependencies
- [Conditionals](/docs/dag-builder/conditionals) — Conditional branching