Batch shared — adapters/batch-shared

# Verify one original request, then publish each admitted JSON child separately.
# Shared mode accepts an object or array, processes sequentially, and reports
# confirmed sends and drops with HTTP 200. Hookway never consumes these queues.
# Fields/resources below are synthetic; bind real contracts in private config.
server: {addr: ":8080", max_body_bytes: 1048576, publish_timeout: 5s, max_inflight_requests: 16}
destinations:
  broker: {type: sqs, sqs: {region: us-east-1}}
routing:
  profiles:
    sample: {account_id: "000000000000", credential_mode: sample}
  environments:
    preview: {aliases: [staging], profiles: [sample], accounts: ["000000000000"], destination_prefix: preview}
    secondary: {profiles: [sample], accounts: ["000000000000"], destination_prefix: secondary}
flows:
  sample:
    capture_failures: false # Batch child snapshots/redrive are not supported yet.
    responses:
      auth_error: {status: 403, body: '{"error":"invalid signature"}'}
      body_error: {status: 200, body: '{"message":"Invalid JSON"}'}
    nodes:
      - {id: in, type: http_trigger, path: /webhooks/shared/sample, methods: [POST]}
      - {id: body, type: read_body, max_bytes: 1048576}
      - id: auth
        type: auth
        scheme: ecdsa_p256_sha256_headers
        secret_ref: {provider: env, name: SAMPLE_ECDSA_PUBLIC_KEY}
        signature_header: X-Sample-Signature
        timestamp_header: X-Sample-Timestamp
        timestamp_unit: seconds
        timestamp_tolerance: 5m
      - {id: env, type: envelope, body_format: json}
      - id: batch
        type: batch
        description: Sequential child publication with independent admission and FIFO IDs.
        mode: shared
        profile: sample
        environment_path: environment
        event_id_path: event_id
        group_id_path: message_id
        max_children: 1000
        concurrency: 1
        max_inflight: 64
        timeout: 30s
        child:
          entry: batch.send
          nodes:
            - id: batch.send
              type: publish
              destination: broker
              target: "{route_prefix}-sample-events.fifo"
              create: true
              wire_body: json
              fifo:
                group_id: {source: variable, path: batch_group_id}
                deduplication_id: {source: variable, path: batch_event_id}
          edges: []
    edges: [in>body, body>auth, auth>env, env>batch]