Apps

🧩 Apps are built-in connections that integrate WAHA with other services in a few steps.

WAHA Team fully supports 🧩 Apps.

Available Apps#

Apps available to connect:

• ChatWoot - use your WhatsApp in ChatWoot CRM

Configuration#

To use 🧩 Apps , you need to configure the following environment variables in addition to the standard ⚙️ Configuration:

Apps:

• WAHA_APPS_ENABLED=True - Enables the 🧩 Apps functionality
• REDIS_URL=redis://:redis@redis:6379 - Specifies the Redis URL required for processing background jobs
• WHATSAPP_DEFAULT_ENGINE=GOWS - Sets the recommended engine for reliable WhatsApp automation
• WAHA_API_KEY_PLAIN=0000000000000000 - plain password required for Apps in environment variables
  • It’s a quick solution, we’re working on removing it so you can use sha512 version as in WAHA_API_KEY

Jobs:

You can configure a background worker http://localhost:3000/jobs

• WAHA_APPS_JOBS_CONCURRENCY=50 - Maximum number of jobs processed concurrently
• WAHA_APPS_JOBS_REMOVE_ON_COMPLETE_AGE=259200 - Remove completed jobs after 3 days (in seconds)
• WAHA_APPS_JOBS_REMOVE_ON_COMPLETE_COUNT=1000 - Maximum number of completed jobs to keep
• WAHA_APPS_JOBS_REMOVE_ON_FAIL_AGE=2678400 - Remove failed jobs after 31 days (in seconds)
• WAHA_APPS_JOBS_REMOVE_ON_FAIL_COUNT=1000 - Maximum number of failed jobs to keep

Note: *_AGE parameters are specified in seconds by default.

Under the hood it uses bullmq.

How it works#

Apps connect WhatsApp with external services using Redis as a message broker.

Apps architecture consists of:

• HTTP API, Worker, and Session on WAHA side
• Redis acts as the central message broker.
• External Services, like ChatWoot

WhatsApp to External Service Flow:

• When a new message arrives in WhatsApp, WAHA captures it and publishes a message event to Redis.
• The Worker then picks up this event, processes it, and forwards the message to ChatWoot via its API.
• After successful delivery, the job is marked as processed in Redis.

External Service to WhatsApp Flow:

• When a new message is created in ChatWoot, it calls the WAHA API webhook.
• The API saves this job to the Redis queue, from which the Worker retrieves it.
• The Worker then requests the WAHA API to send the message to WhatsApp.
• After WhatsApp confirms delivery, the API acknowledges the Worker, which then marks the job as processed in Redis.

You can use the WAHA Jobs Dashboard at http://localhost:3000/jobs for monitoring Worker and it’s jobs:

Apps SDK#

This section is currently under development. Check back soon for detailed information about the integration architecture and workflow.