sendGroup | Single

POST

https://api.whatsiplus.com/sendGroup/APIKEY

Use this method to send messages to a group chat.

Message Size Limitation:

When sending outbound messages via our API service, please ensure that the total message size remains below the channel's maximum size limit. API requests containing media or multiple media files exceeding this limit will result in an error.
For WhatsApp messages, the maximum size limit is 100MB

New Media Upload Options

In addition to the existing URL-based media sending method, our API now supports two new direct upload parameters:
• file — Upload a media file directly to our server and have it delivered to the WhatsApp group.
• base64_file — Send media as a raw Base64-encoded string without any MIME prefix.
These new parameters allow you to send files directly, without needing to provide a public URL.

To test all message-sending capabilities in real conditions, you can use the following page:

https://whatsiplus.com/send-whatsapp-message/

Request

Body Params multipart/form-data

Responses

🟢200Success

application/json

Body

Request Example

Shell

JavaScript

Java

Swift

curl --location --request POST 'https://api.whatsiplus.com/sendGroup/APIKEY' \
--form 'groupId="120363292564959780"' \
--form 'message="This is a test message"' \
--form 'link="https://example.com/image.jpg"' \
--form 'file=@""' \
--form 'base64_file=""'

Response Example

{
    "success": "true",
    "message": "Added to the message queue",
    "messageId": 637
}

Modified at 2025-12-01 07:04:20

getGroupList

sendGroup | Single