wago-api

command module
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 Go to latest Published: May 2, 2026 License: MIT Imports: 13 Imported by: 0

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wago-api

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WhatsApp REST API — native protocol, multi-session, production-ready.

  • 129 REST endpoints — messaging, groups, communities, channels, privacy, business
  • Multi-session — run hundreds of WhatsApp accounts in a single instance
  • 32MB Docker image — single Go binary, zero external dependencies
  • Production-ready — auto-reconnect, webhook retry, rate limiting, SSRF protection, request tracing

Quick Start

git clone https://github.com/arktnld/wago-api && cd wago-api
docker compose up

Start a session and scan the QR code:

curl localhost:3000/session/start/main
curl localhost:3000/session/qr/main/image --output qr.png

Send a message:

curl -X POST localhost:3000/client/sendMessage/main \
  -H 'Content-Type: application/json' \
  -d '{"chatId":"5511999999999@s.whatsapp.net","text":"Hello from wago-api!"}'

{"success":true,"messageId":"3EB0F85AB813A2BB26F73D","timestamp":1777744034}

Features

Messaging

Send text, images, videos, audio, and documents. Reply, forward, edit, and delete messages. Send reactions, create polls, and star messages. Upload media via URL or base64.

Groups

Create and manage groups. Add, remove, promote, and demote participants. Generate and revoke invite links. Set group name, description, photo, and permissions. Approve or reject membership requests.

Communities

Create WhatsApp Communities. Link and unlink sub-groups. List all sub-groups and participants. Control join approval mode and member add permissions.

Channels (Newsletters)

Create, follow, and unfollow channels. Send messages and fetch message history. Send reactions, mute/unmute, and mark as viewed.

Contacts & Presence

Access contact list and profile pictures. Subscribe to online/offline status. Send typing and recording indicators. Block and unblock contacts. Generate and resolve contact QR links.

Privacy

10 granular privacy settings: last seen, profile photo, about, status, groups, read receipts, online status, calls, messages, and stickers. Set disappearing messages globally or per-chat.

Business

Fetch verified business profiles and resolve wa.me message links. List official WhatsApp bots with their commands and prompts.

Calls

Reject incoming voice and video calls programmatically.

Labels

Create, edit, and delete labels with custom colors. Assign labels to chats and individual messages.

Infrastructure
  • Auto-reconnect with error tracking
  • Webhooks with 3x retry and exponential backoff
  • WebSocket real-time event stream
  • Per-IP rate limiting with auto-cleanup
  • CORS headers for browser access
  • API key authentication (header-only)
  • Request tracing via X-Request-Id
  • SSRF protection on media URL fetches
  • SQLite session persistence with WAL mode
  • Parallel session restore on startup

Architecture

┌──────────┐     REST      ┌──────────┐    Native Protocol    ┌──────────────────┐
│ Your App ├──────────────►│ wago-api ├──────────────────────►│ WhatsApp Servers │
└──────────┘               └────┬─────┘                       └──────────────────┘
                                │
                    ┌───────────┼───────────┐
                    ▼           ▼           ▼
              ┌──────────┐ ┌────────┐ ┌──────────┐
              │ Webhooks │ │  WS    │ │  SQLite  │
              │ (retry)  │ │ events │ │ sessions │
              └──────────┘ └────────┘ └──────────┘

API Reference

Session
Method Endpoint Description
GET /ping Health check
GET /session/getSessions List all sessions
GET /session/start/{id} Start new session
GET /session/stop/{id} Disconnect session
GET /session/status/{id} Get session state
GET /session/qr/{id} Get QR code string
GET /session/qr/{id}/image Get QR code as PNG
POST /session/requestPairingCode/{id} Get pairing code (no QR)
GET /session/restart/{id} Restart session
GET /session/terminate/{id} Terminate and delete session
GET /session/terminateInactive Terminate inactive sessions
GET /session/terminateAll Terminate all sessions
Message
Method Endpoint Description
POST /client/sendMessage/{id} Send text or media message
POST /client/sendPoll/{id} Send poll
POST /message/reply/{id} Reply to a message
POST /message/forward/{id} Forward a message
POST /message/react/{id} React to a message
POST /message/edit/{id} Edit a sent message
POST /message/delete/{id} Delete a message
POST /message/star/{id} Star a message
POST /message/unstar/{id} Unstar a message
POST /message/downloadMedia/{id} Download message media
POST /message/downloadMediaAsData/{id} Download media as base64
POST /message/getReactions/{id} Get reactions info
POST /message/getPollVotes/{id} Get poll votes info
Client
Method Endpoint Description
GET /client/getContacts/{id} Get all contacts
GET /client/getChats/{id} Get joined groups
GET /client/getChannels/{id} Get subscribed channels
GET /client/getState/{id} Get connection state
POST /client/isRegisteredUser/{id} Check if phone is on WhatsApp
POST /client/getNumberId/{id} Get JID for phone number
POST /client/getContactById/{id} Get contact info
POST /client/getChatById/{id} Get chat info
POST /client/getProfilePicUrl/{id} Get profile picture URL
POST /client/setProfilePicture/{id} Set profile picture
DELETE /client/deleteProfilePicture/{id} Delete profile picture
POST /client/setStatus/{id} Set status message
POST /client/setPushName/{id} Set display name
POST /client/sendPresenceAvailable/{id} Set presence to available
POST /client/sendPresenceUnavailable/{id} Set presence to unavailable
POST /client/subscribePresence/{id} Subscribe to contact presence
POST /client/sendSeen/{id} Mark messages as read
POST /client/getBlockedContacts/{id} Get blocked contacts
POST /client/getPrivacySettings/{id} Get privacy settings
POST /client/acceptInvite/{id} Join group via invite link
POST /client/getInviteInfo/{id} Get group info from invite
POST /client/archiveChat/{id} Archive a chat
POST /client/unarchiveChat/{id} Unarchive a chat
POST /client/muteChat/{id} Mute a chat
POST /client/unmuteChat/{id} Unmute a chat
POST /client/pinChat/{id} Pin a chat
POST /client/unpinChat/{id} Unpin a chat
POST /client/markChatUnread/{id} Mark chat as unread
POST /client/syncHistory/{id} Request history sync
POST /client/getCommonGroups/{id} Get common groups with contact
POST /client/getContactDeviceCount/{id} Get linked device count
POST /client/getUserDevices/{id} Get user's linked devices
POST /client/getCountryCode/{id} Get country code from phone
POST /client/getFormattedNumber/{id} Format phone number
POST /client/getLabels/{id} Get labels
POST /client/addOrRemoveLabels/{id} Add/remove label from chat
POST /client/editLabel/{id} Create/edit/delete label
POST /client/createGroup/{id} Create a group
POST /client/createChannel/{id} Create a channel
POST /client/subscribeToChannel/{id} Follow a channel
POST /client/unsubscribeFromChannel/{id} Unfollow a channel
POST /client/getChannelByInviteCode/{id} Get channel by invite code
Chat
Method Endpoint Description
POST /chat/sendStateTyping/{id} Send typing indicator
POST /chat/sendStateRecording/{id} Send recording indicator
POST /chat/clearState/{id} Clear typing/recording state
POST /chat/sendSeen/{id} Mark chat as read
POST /chat/markUnread/{id} Mark chat as unread
POST /chat/delete/{id} Delete a chat
POST /chat/fetchMessages/{id} Request message history
POST /chat/syncHistory/{id} Sync message history
POST /chat/getContact/{id} Get contact for chat
POST /chat/getLabels/{id} Get labels for chat
POST /chat/changeLabels/{id} Change labels on chat
Contact
Method Endpoint Description
POST /contact/block/{id} Block a contact
POST /contact/unblock/{id} Unblock a contact
POST /contact/getProfilePicUrl/{id} Get profile picture
POST /contact/getAbout/{id} Get contact about/status
POST /contact/getChat/{id} Get chat for contact
POST /contact/getFormattedNumber/{id} Format phone number
POST /contact/getCountryCode/{id} Get country code
POST /contact/getCommonGroups/{id} Get common groups
POST /contact/getQRLink/{id} Generate contact QR link
POST /contact/resolveQR/{id} Resolve contact QR code
Group
Method Endpoint Description
POST /groupChat/getClassInfo/{id} Get group info
POST /groupChat/leave/{id} Leave group
POST /groupChat/addParticipants/{id} Add members
POST /groupChat/removeParticipants/{id} Remove members
POST /groupChat/promoteParticipants/{id} Promote to admin
POST /groupChat/demoteParticipants/{id} Demote from admin
POST /groupChat/getInviteCode/{id} Get invite link
POST /groupChat/revokeInvite/{id} Revoke invite link
POST /groupChat/setSubject/{id} Set group name
POST /groupChat/setDescription/{id} Set group description
POST /groupChat/setPicture/{id} Set group picture
POST /groupChat/deletePicture/{id} Delete group picture
POST /groupChat/setMessagesAdminsOnly/{id} Toggle admin-only messages
POST /groupChat/setInfoAdminsOnly/{id} Toggle admin-only info edit
POST /groupChat/getGroupMembershipRequests/{id} Get join requests
POST /groupChat/approveGroupMembershipRequests/{id} Approve join requests
POST /groupChat/rejectGroupMembershipRequests/{id} Reject join requests
Channel
Method Endpoint Description
POST /channel/getClassInfo/{id} Get channel info
POST /channel/sendMessage/{id} Send channel message
POST /channel/fetchMessages/{id} Fetch channel messages
POST /channel/sendSeen/{id} Mark channel as viewed
POST /channel/sendReaction/{id} React to channel message
POST /channel/mute/{id} Mute channel
POST /channel/unmute/{id} Unmute channel
POST /channel/deleteChannel/{id} Delete channel
Community
Method Endpoint Description
POST /community/create/{id} Create community
POST /community/linkGroup/{id} Link group to community
POST /community/unlinkGroup/{id} Unlink group from community
POST /community/getSubGroups/{id} List sub-groups
POST /community/getParticipants/{id} List all participants
POST /community/setJoinApprovalMode/{id} Toggle join approval
POST /community/setMemberAddMode/{id} Set member add permissions
Privacy
Method Endpoint Description
POST /privacy/setSetting/{id} Set privacy setting
POST /privacy/setDefaultDisappearingTimer/{id} Set default disappearing timer
POST /privacy/setDisappearingTimer/{id} Set per-chat disappearing timer
Business & Bot
Method Endpoint Description
POST /business/getProfile/{id} Get business profile
POST /business/resolveLink/{id} Resolve wa.me link
GET /bot/list/{id} List available bots
Call
Method Endpoint Description
POST /call/reject/{id} Reject incoming call
Status
Method Endpoint Description
GET /status/privacy/{id} Get status privacy settings
WebSocket

Connect to /ws/{sessionId} for real-time events.

Events

Events are delivered via webhooks (HTTP POST) and/or WebSocket.

Event Trigger
ready Session connected
disconnected Session disconnected
logged_out Session logged out
temporary_ban Account temporarily banned
connect_failure Connection attempt failed
stream_replaced Session replaced by another device
qr New QR code generated
authenticated QR scanned successfully
message Message received
message_create Message sent by this session
message_ack Message delivery/read receipt
presence Contact typing/recording state
group_update Group metadata changed
group_join Added to a group
call Incoming call
contact_changed Contact name changed
blocklist Block list updated
blocklist_change Contact blocked/unblocked
chat_archived Chat archived/unarchived
chat_muted Chat muted/unmuted
chat_pinned Chat pinned/unpinned
chat_removed Chat deleted
message_starred Message starred/unstarred
message_revoke_me Message deleted for me
unread_count Chat read state changed
label_edit Label created/edited/deleted
label_association_chat Label assigned to chat
label_association_message Label assigned to message
history_sync Message history synced
identity_change Contact security code changed
newsletter_message Channel message received
newsletter_join Joined a channel
newsletter_leave Left a channel
newsletter_mute_change Channel mute state changed
picture Profile picture changed

Webhook payload example:

{
  "sessionId": "main",
  "event": "message",
  "data": {
    "id": "3EB0F85AB813A2BB26F73D",
    "chat": "5511999999999@s.whatsapp.net",
    "sender": "5511999999999@s.whatsapp.net",
    "pushName": "John",
    "body": "Hello!",
    "type": "text",
    "timestamp": 1777744034,
    "isGroup": false,
    "isFromMe": false
  }
}

Webhook URL pattern: {BASE_WEBHOOK_URL}/{sessionId}/{event}

Failed webhooks are retried 3 times with exponential backoff (1s, 2s, 4s).

Configuration

Variable Default Description
PORT 3000 HTTP server port
API_KEY (empty) API key for authentication (header X-Api-Key)
BASE_WEBHOOK_URL (empty) Base URL for webhook callbacks
ENABLE_WEBHOOK true Enable webhook delivery
ENABLE_WEBSOCKET false Enable WebSocket event stream
AUTO_START_SESSIONS true Restore sessions on startup
SESSIONS_PATH ./sessions Path for session database files
SET_MESSAGES_AS_SEEN false Auto-mark incoming messages as read
LOG_LEVEL info Log level: trace, debug, info, warn, error
RATE_LIMIT_MAX 1000 Max requests per window per IP
RATE_LIMIT_WINDOW_MS 1000 Rate limit window in milliseconds
DISABLED_CALLBACKS (empty) Pipe-separated list of disabled events

Docker

docker pull arktnld/wago-api:latest

services:
  api:
    image: arktnld/wago-api:latest
    ports:
      - "3000:3000"
    volumes:
      - ./sessions:/app/sessions
    environment:
      - API_KEY=your-secret-key
      - BASE_WEBHOOK_URL=https://your-server.com/webhook
    restart: unless-stopped
  • Image size: 32MB
  • Built-in healthcheck: GET /ping every 30s
  • Session data persisted in /app/sessions volume

Build from Source

git clone https://github.com/arktnld/wago-api
cd wago-api
CGO_ENABLED=1 go build -ldflags="-s -w" -o wago-api .
./wago-api

Requires Go 1.25+ and a C compiler (for SQLite).

Security

  • Authentication — API key via X-Api-Key header (query parameter intentionally disabled to prevent key leakage in logs)
  • SSRF Protection — Media URL fetches validate against private IPs, loopback addresses, and cloud metadata endpoints
  • Rate Limiting — Per-IP token bucket with automatic stale entry cleanup
  • Request Tracing — Every response includes X-Request-Id header for debugging

Roadmap

  • OpenAPI/Swagger spec
  • Prometheus /metrics endpoint
  • Admin web dashboard
  • Multi-arch Docker images (ARM64)
  • End-to-end test suite

Credits

Built on whatsmeow by tulir. API design inspired by wwebjs-api.

License

MIT

Documentation

The Go Gopher

There is no documentation for this package.

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