commerce-app-eventing

name	commerce-app-eventing
description	Add or modify Commerce and external event subscriptions, configure event field extraction and filter rules in an Adobe Commerce app. Use when the user wants to set up event-driven workflows triggered by Commerce operations (such as order placement or catalog changes) or third-party systems. Requires a base app initialized with commerce-app-init.
license	Apache-2.0
compatibility	Requires Node.js 22+, aio CLI, and @adobe/aio-commerce-lib-app. Requires a base app initialized with commerce-app-init.
metadata	{"author":"adobe"}

Configure Commerce App Eventing

Adds or modifies event sources — Commerce-native events or external events — in an existing app.commerce.config.ts. Extensibility domains other than eventing (webhooks, business config) are added separately via their own skills.

Prerequisites

• Verify the app is scaffolded and initialized, not merely that the config exists. Require both:
  • app.commerce.config.ts present in the project root, and
  • the project initialized — signalled by the generated src/commerce-extensibility-1/ directory and installed node_modules (the @adobe/aio-commerce-lib-app dependency).
• If app.commerce.config.ts is missing, stop and invoke commerce-app-init first (it writes the config, then runs init).
• If the config is present but the project is not initialized (no src/commerce-extensibility-1/ or node_modules), run npx @adobe/aio-commerce-lib-app init before continuing. Init is idempotent — it finds the existing config, skips the interactive prompts, installs dependencies, and generates the project files.
• Actions can be authored in TypeScript only once the project has the TypeScript build setup (webpack-config.cjs + root tsconfig.json) that init scaffolds for a TypeScript Commerce config — see commerce-app-init. Otherwise, author actions in JavaScript.
• Ensure CloudIntegrationSDK (I/O Events) and commerceeventing (Adobe I/O Events for Adobe Commerce) are subscribed in the Developer Console workspace:

  1. List currently subscribed services:

     aio console workspace api list --projectName <project> --workspaceName <workspace> --json
     

  2. If either service is missing, re-subscribe with the full merged set of service codes (existing + missing). aio console workspace api add replaces the subscription list — omitting a currently-subscribed service will remove it.

     aio console workspace api add \
       --projectName <project> \
       --workspaceName <workspace> \
       --service-code <existing-codes>,CloudIntegrationSDK,commerceeventing \
       --json
     

     If the command fails with "product profile required" for commerceeventing, ask the user for the profile name and retry with --license-config commerceeventing=<profile>.

Step 1 — Understand intent

Ask whether the user wants to configure Commerce events, external events, or both:

• Commerce events (eventing.commerce): native Commerce events. Names follow plugin.<segments> or observer.<segments>.
• External events (eventing.external): events from third-party systems (e.g., ERP, CRM). Names are free-form ([\w\-_.]+).

For each event source, gather:

• Provider label, description, and optional key
• For each event: name, label, description, and which runtime action(s) should handle it (format: <package>/<action>)
• For Commerce events only: fields to extract from the event payload (empty array captures the full payload), and any optional filter rules
• Optionally, which Commerce environments the event applies to (env)

Step 2 — Derive config values

Apply the following validation rules before writing the config. Surface any issues to the user before proceeding.

Field	Constraint
Commerce event name	Starts with plugin. or observer.; each segment matches [a-z_]+; max 180 chars
External event name	[\w\-_.]+; max 180 chars
Provider label	Max 100 chars
Provider description	Max 255 chars
Provider key	Optional; alphanumeric + hyphens only; max 50 chars
Event label	Max 100 chars
Event description	Max 255 chars
Field name	[a-zA-Z0-9_\-.[\]]+ or *
Rule operator	greaterThan, lessThan, equal, regex, in, or onChange
Runtime action	<package>/<action> (e.g., my-package/handle-order-placed)
Event env (optional)	Non-empty array of "paas" / "saas"; omitted = all environments

Step 3 — Update app.commerce.config.ts

Add or merge eventing.commerce and/or eventing.external into the existing config, preserving all other domains. If the config already has an eventing key, extend it rather than replacing it.

Minimal example (Commerce event):

eventing: {
  commerce: [{
    provider: { label: "Commerce Events Provider", description: "..." },
    events: [{
      name: "plugin.order_placed",          // plugin.<segments> or observer.<segments>
      label: "Order Placed",
      description: "Triggered when a customer places an order.",
      fields: [{ name: "order_id" }],       // empty array = full payload; Commerce events only
      runtimeActions: ["my-package/handle-order-placed"], // <package>/<action>
    }],
  }],
}

See assets/eventing-config.ts for the full reference including external event sources.

Creating the handler action

For events that reference runtime actions via runtimeActions, create the action file under src/actions/ and register it in app.config.yaml.

Register the action

Add a user-defined package to src/commerce-extensibility-1/ext.config.yaml alongside the existing app-management package. Use any name except app-management (reserved by the framework):

# src/commerce-extensibility-1/ext.config.yaml
# (add below the auto-generated app-management package)
runtimeManifest:
  packages:
    app-management:
      # ... auto-generated — do not edit
    my-app: # your package name — any name except "app-management"
      actions:
        handle-order-placed:
          function: actions/handle-order-placed/index.js # relative to src/commerce-extensibility-1/
          web: "no"
          runtime: nodejs:24
          annotations:
            require-adobe-auth: false

The <package>/<action> format in runtimeActions maps directly: my-app/handle-order-placed → package my-app, action handle-order-placed.

Handler skeleton

Event handlers receive a CloudEvents-shaped payload. params.data bundles the event payload together with metadata, so don't read fields directly off params.data: params.data.value is the event payload — the fields declared in the event's fields array (or the full payload if fields is empty); params.data._metadata is Commerce instance metadata; params.data.source is the merchant/environment ID pair configured in the Commerce eventing configuration.

// src/commerce-extensibility-1/actions/handle-order-placed/index.ts
export async function main(params: Record<string, unknown>) {
  const data = params.data as Record<string, unknown>;
  const value = data.value as Record<string, unknown>;
  // value contains the fields declared in the event's `fields` array
  // (or the full payload if fields is empty)

  const orderId = value["order_id"];

  // process the event ...

  return { statusCode: 200, body: { processed: true } };
}

Step 4 — Validate

Build the project to confirm the updated config is valid:

aio app build

A build failure with a validation error points directly to the offending config field.

Common Issues

• External event has fields: The fields property is only valid on Commerce events; external events don't support it.
• runtimeActions format error: Must be <package>/<action>. Both parts are lowercase alphanumeric + hyphens only.
• app-management package name conflict: The framework generates this package in ext.config.yaml on every build. Use any other name for your own actions.
• Function path is relative to src/commerce-extensibility-1/: Do not use src/... or project-root-relative paths. actions/handle-order-placed/index.js resolves correctly; src/commerce-extensibility-1/actions/handle-order-placed/index.js does not.
• defineConfig not found: Ensure @adobe/aio-commerce-lib-app is installed and defineConfig is imported from @adobe/aio-commerce-lib-app/config.
• Build fails on missing action: A runtime action referenced in runtimeActions must exist in the project. Check the action files under src/commerce-extensibility-1/actions/ and create any missing stubs.

Quality Bar

• aio app build completes without errors

Chaining

After aio app build passes:

• Add webhook interception — invoke commerce-app-webhooks to intercept Commerce operations
• Add merchant settings — invoke commerce-app-business-config to expose configurable settings in Commerce Admin
• Extend the Admin UI — invoke commerce-app-admin-ui to add custom columns, mass actions, or menu entries in Commerce Admin
• Add persistent storage — invoke commerce-app-storage to back event handlers with queryable DB storage

References

• assets/eventing-config.ts — Reference config showing both Commerce and external event source shapes