WABA API

Reference for WhatsApp Business API integration through Sendeasy public routes.

Authentication

Required header:

Authorization: Bearer <api_token>

Route prefix

/api/v1/waba/:whatsappId

Templates

Method	Endpoint	Purpose
`GET`	`/templates`	List templates
`POST`	`/templates`	Create template
`PUT`	`/templates/:templateId`	Update template
`DELETE`	`/templates/:templateName`	Delete template

Messages

Method	Endpoint	Purpose
`POST`	`/send`	Send template (or plain text with specific payload body)
`POST`	`/send-text`	Send text
`POST`	`/send-image`	Send image
`POST`	`/send-video`	Send video
`POST`	`/send-audio`	Send audio
`POST`	`/send-document`	Send document
`POST`	`/marketing-lite/send`	Send marketing message (Marketing Messages Lite API)

New API: marketing message

Public endpoint:

POST /api/v1/waba/:whatsappId/marketing-lite/send

Meta endpoint used by the backend:

POST /{phone-number-id}/marketing_messages

Prerequisites:

WABA account with Marketing Messages Lite onboarding completed.
Marketing Messages Lite terms accepted in Meta account.
Template in MARKETING category with APPROVED status.

Payload

Field	Type	Required	Notes
`to`	`string`	Yes	international number format (digits only)
`templateName`	`string`	Yes	approved template name in Meta
`language`	`string`	No	default: `pt_BR`
`components`	`array`	No	template components/parameters
`productPolicy`	`string`	No	`CLOUD_API_FALLBACK` (default) or `STRICT`
`messageActivitySharing`	`boolean`	No	default: `true`
`bizOpaqueCallbackData`	`string`	No	echoed back in webhook for campaign correlation

Example: send marketing message

curl --location 'https://server.sendeasy.pro/api/v1/waba/YOUR_WHATSAPP_ID/marketing-lite/send' \
  --header 'Content-Type: application/json' \
  --header 'Authorization: Bearer YOUR_API_TOKEN' \
  --data '{
    "to": "5511999999999",
    "templateName": "promo_blackfriday",
    "language": "pt_BR",
    "components": [
      {
        "type": "body",
        "parameters": [
          { "type": "text", "text": "John" }
        ]
      }
    ],
    "productPolicy": "CLOUD_API_FALLBACK",
    "messageActivitySharing": true,
    "bizOpaqueCallbackData": "campaign_blackfriday_2026"
  }'

Success response (example):

{
  "messages": [
    { "id": "wamid.HBg..." }
  ]
}

Limit/opt-out error (example):

{
  "error": "MARKETING_LIMIT_REACHED",
  "message": "User has opted out of marketing messages or reached the limit",
  "details": "..."
}

Example: send text

curl --location 'https://server.sendeasy.pro/api/v1/waba/YOUR_WHATSAPP_ID/send-text' \
  --header 'Content-Type: application/json' \
  --header 'Authorization: Bearer YOUR_API_TOKEN' \
  --data '{
    "to": "5511999999999",
    "text": "Hello! Message sent through WABA API."
  }'

Example: send template

{
  "to": "5511999999999",
  "templateName": "welcome",
  "language": "en_US",
  "components": [
    {
      "type": "body",
      "parameters": [
        { "type": "text", "text": "John" }
      ]
    }
  ]
}

Common error codes

Code	Typical cause
`WHATSAPP_NOT_FOUND`	`whatsappId` does not exist
`WHATSAPP_CREDENTIALS_MISSING`	channel missing required WABA credentials
`MISSING_PARAMETERS`	required payload fields are missing
`MARKETING_LIMIT_REACHED`	recipient opted out or marketing limit was reached
`WHATSAPP_API_ERROR`	error returned by Meta API

WABA webhooks (public contract)

When project webhook is enabled, Sendeasy sends:

event: "messaging" for message events.
event: "message_status" for delivery status updates.

Example (messaging):

{
  "event": "messaging",
  "channel": "waba",
  "data": {},
  "channelId": "channel-uuid"
}

Example (message_status):

{
  "event": "message_status",
  "channel": "whatsapp",
  "data": {
    "messageId": "wamid.HBg...",
    "status": "read",
    "timestamp": "1713800010"
  },
  "channelId": "channel-uuid"
}

Common data.status values:

sent
delivered
read
failed