Wassenger

Interact with Wassenger WhatsApp API

Actions148

Send messages Actions
- Send text message
- Send multimedia message
- Send scheduled message
- Send poll message
- Send votes in a poll
- Delete votes in a poll
- Send meeting event
- Send meeting confirmation
- Send location
- Send contacts
- Send reaction
- Send catalog product
- Forward message
Outbound Messages Actions
- Search Messages
- Get Message
- Update Message
- Delete Message
WhatsApp Numbers Actions
- Get Numbers
- Get Number by ID
- Create Number
- Update Number
- Delete Number
- Delete Chats
Groups Actions
- Get Groups
- Get Group
- Create Group
- Update Group
- Update Group Image
- Add Participants
- Update Participants
- Remove Participants
- Get Pending Members
- Approve Members
- Reject Members
- Get Invite Code
- Revoke Invite Code
- Join Group
- Leave Group
Channels Actions
- Get Channels
- Get Channel
- Create Channel
- Update Channel
- Update Channel Image
- Delete Channel
- Join Channel
- Search Channels
Chats Actions
- Get Chats
- Get Chat Details
- Send Typing Status
- Sync Device Chats
- Sync Chat Messages
- Update Chat Read Status
- Set Chat Status
- Get Group Participants
- Assign Chat
- Unassign Chat
- Create Chat Note
- Delete Chat Note
- Update Chat Labels
- Update Chat Attributes
- Archive Chat
- Unarchive Chat
- Delete Chat
- Bulk Update Chats
Chat Contacts Actions
- Get Contacts
- Get Contact Details
- Create Contact
- Update Contact
- Update Contact Metadata
- Upsert Contact Metadata
- Delete Contact
- Bulk Create Contacts
- Block Contacts
- Unblock Contacts
Chat Messages Actions
- Get Messages
- Get Message Details
- Get Message Delivery Info
- Edit Message
- Delete Message
Chat Files Actions
- Get Files
- Get File Details
- Download File
Team Actions
- Get Team Members
- Update Team Member
- Delete Team Members
- Get Device Team Members
- Create Team Member
- Grant Device Access
- Revoke Device Access
Labels Actions
- Get Labels
- Create Label
- Update Label
- Delete Label
Departments Actions
- Get Departments
- Create Department
- Update Department
- Delete Department
Files Actions
- Search Files
- Upload File
- Delete Files
- Get File Preview
- Download File
- Get File
- Update File
- Delete File
Quick replies Actions
- Get Quick Replies
- Create Quick Reply
- Update Quick Reply
- Delete Quick Replies
Queue Actions
- Get Queue Status
- Set Queue Status
- Route Queue
- Empty Queue
WhatsApp session Actions
- Sync session
- Start session
- Scan QR
- Reset session
- Reboot session
- Get session health
- Request Authentication Code
WhatsApp profile Actions
- Get Profile
- Update Profile
- Get Profile Image
- Update Profile Image
Business catalog Actions
- Get My Catalog
- Query Business Catalog
Campaigns Actions
- Get Campaigns
- Get Campaign
- Update Campaign Status
- Get Campaign Contacts
- Delete Campaign
Meeting Links Actions
- Get Meeting Links
- Create Meeting Link
- Delete Meeting Links
User Status Actions
- Get User Status
- Get User Status by ID
- Update User Status
- Delete User Status
Webhooks Actions
- Get Webhooks
- Create Webhook
- Get Webhook
- Update Webhook
- Delete Webhook
- Enable Webhook
- Get Webhook Logs
Other Actions
- Verify number exists
- Validate phone numbers
- Send API request

Overview

This node interacts with the Wassenger WhatsApp API to approve pending members in WhatsApp groups. It is useful for automating group membership management, especially when you need to programmatically approve multiple users waiting to join a group without manual intervention.

Practical examples include:

Automatically approving all pending members of a specific WhatsApp group.
Approving selected phone numbers from a list of pending members.
Integrating group member approval into larger workflows that manage WhatsApp group participation dynamically.

Properties

Name	Meaning
WhatsApp Number	The ID of the WhatsApp number (device) used to perform the operation.
Group ID	The ID of the WhatsApp group where members will be approved.
Approve All	Boolean flag indicating whether to approve all pending members in the group.
Phone Numbers	List of phone numbers to approve individually (used only if "Approve All" is false).

Output

The node outputs JSON data representing the result of the approval operation. This typically includes confirmation details about which members were approved or any errors encountered during the process.

No binary data output is involved in this operation.

Dependencies

Requires an API key credential for authenticating with the Wassenger WhatsApp API.
The node depends on dynamic loading of WhatsApp devices and groups via internal methods (getDevices and getGroups).
Proper configuration of the Wassenger API key credential within n8n is necessary.

Troubleshooting

Common issues:
- Invalid or missing WhatsApp number (device) ID can cause failures.
- Incorrect or expired API key credential will prevent successful API calls.
- Specifying phone numbers that are not pending members may result in no action or errors.
- Network connectivity issues can cause timeouts or failed requests.
Error messages:
- Errors related to authorization usually indicate problems with the API key; verify and update credentials.
- Errors about invalid group IDs suggest the group does not exist or the device does not have access; check group selection.
- If "Approve All" is false but no phone numbers are provided, the node may throw an error due to missing required input.

Links and References

Wassenger Official Website
Wassenger WhatsApp API Documentation
n8n Documentation on Creating Custom Nodes

WassengerInstall