Send Image Messages

Sends a message with an image attached via a URL.

Send a message that includes an image. Provide the image via a publicly accessible URL in the media_url parameter.

You can optionally include caption text in the message parameter.

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💡 Note: Supported image formats: JPEG, PNG. Maximum file size: 5MB.

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Parameters

Name	Type	Required	Description
group_id	string	Yes	The WhatsApp group JID (example: 12345@g.us).
message	string	No	Text content of the message. Required for text, buttons, interactive, and optional for others.
message_type	string	Yes	Type of message to send. One of: text, image, video, audio, document, location, buttons, interactive.
media_url	string	Yes	URL of media file (image/video/audio/document) to send, depending on message_type.
file_name	string	No	File name for documents (e.g. document.pdf).
mimetype	string	Yes	MIME type of media, e.g., image/jpeg, video/mp4, audio/mp4, application/pdf.
latitude	number	No	Latitude coordinate for location messages.
longitude	number	No	Longitude coordinate for location messages.
buttons	array	No	Array of button objects for interactive messages. Each button should have buttonId and displayText.
quoted_message_id	string	No	ID of the message to quote (reply to).
quoted_message	string	No	Fallback text content for the quoted message if the original message is not found in the store.

API Endpoint

POST https://app.rapiwa.com/api/group/send-message

Header

Content-Type: application/json
Authorization: Bearer Your_Device_Key

Body

{
  "group_id": "XXXXXXXXXXXX",
  "message_type": "image",
  "message": "Here is an image for you!",
  "media_url": "https://rapiwa.com/xyz.jpg",
  "mimetype": "image/jpeg"
}

###Response:

{
  "success": true,
  "message_type": "image",
  "message_id": "XXXXXXXXXXXXXXXXXXXXXX",
  "to": "XXXXXXXXXXXXX"
}

Code examples

bash

curl -X POST "https://app.rapiwa.com/api/group/send-message" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer Your_Device_Key" \
  -d '{"group_id":"XXXXXXXXXXXX","message_type":"image","message":"Here is an image for you!","media_url":"https://rapiwa.com/xyz.jpg","mimetype":"image/jpeg"}'

python

import requests
url = "https://app.rapiwa.com/api/group/send-message"
headers = {"Content-Type": "application/json", "Authorization": "Bearer Your_Device_Key"}
payload = {"group_id": "XXXXXXXXXXXX", "message_type": "image", "message": "Here is an image for you!", "media_url": "https://rapiwa.com/xyz.jpg", "mimetype": "image/jpeg"}
requests.post(url, json=payload, headers=headers)

javascript

await fetch('https://app.rapiwa.com/api/group/send-message', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json', 'Authorization': 'Bearer Your_Device_Key' },
  body: JSON.stringify({ group_id: 'XXXXXXXXXXXX', message_type: 'image', message: 'Here is an image for you!', media_url: 'https://rapiwa.com/xyz.jpg', mimetype: 'image/jpeg' })
});

php

<?php
$data = ['group_id' => 'XXXXXXXXXXXX', 'message_type' => 'image', 'message' => 'Here is an image for you!', 'media_url' => 'https://rapiwa.com/xyz.jpg', 'mimetype' => 'image/jpeg'];
$options = ['http' => ['header' => "Content-Type: application/json\r\nAuthorization: Bearer Your_Device_Key\r\n", 'method' => 'POST', 'content' => json_encode($data)]];
file_get_contents('https://app.rapiwa.com/api/group/send-message', false, stream_context_create($options));

ruby

require 'net/http'
require 'json'
uri = URI('https://app.rapiwa.com/api/group/send-message')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request['Authorization'] = 'Bearer Your_Device_Key'
request.body = { group_id: 'XXXXXXXXXXXX', message_type: 'image', message: 'Here is an image for you!', media_url: 'https://rapiwa.com/xyz.jpg', mimetype: 'image/jpeg' }.to_json
Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) { |h| h.request(request) }

go

payload := map[string]interface{}{"group_id": "XXXXXXXXXXXX", "message_type": "image", "message": "Here is an image for you!", "media_url": "https://rapiwa.com/xyz.jpg", "mimetype": "image/jpeg"}
body, _ := json.Marshal(payload)
req, _ := http.NewRequest("POST", "https://app.rapiwa.com/api/group/send-message", bytes.NewBuffer(body))
req.Header.Set("Content-Type", "application/json")
req.Header.Set("Authorization", "Bearer Your_Device_Key")
http.DefaultClient.Do(req)

csharp

var payload = new { group_id = "XXXXXXXXXXXX", message_type = "image", message = "Here is an image for you!", media_url = "https://rapiwa.com/xyz.jpg", mimetype = "image/jpeg" };
var content = new StringContent(JsonSerializer.Serialize(payload), Encoding.UTF8, "application/json");
client.DefaultRequestHeaders.Add("Authorization", "Bearer Your_Device_Key");
await client.PostAsync("https://app.rapiwa.com/api/group/send-message", content);

java

HttpRequest.newBuilder()
    .uri(URI.create("https://app.rapiwa.com/api/group/send-message"))
    .header("Content-Type", "application/json")
    .header("Authorization", "Bearer Your_Device_Key")
    .method("POST", HttpRequest.BodyPublishers.ofString("{\"group_id\":\"XXXXXXXXXXXX\",\"message_type\":\"image\",\"message\":\"Here is an image for you!\",\"media_url\":\"https://rapiwa.com/xyz.jpg\",\"mimetype\":\"image/jpeg\"}"))
    .build();

swift

var request = URLRequest(url: URL(string: "https://app.rapiwa.com/api/group/send-message")!)
request.httpMethod = "POST"
request.setValue("application/json", forHTTPHeaderField: "Content-Type")
request.setValue("Bearer Your_Device_Key", forHTTPHeaderField: "Authorization")
request.httpBody = try? JSONEncoder().encode(["group_id": "XXXXXXXXXXXX", "message_type": "image", "message": "Here is an image for you!", "media_url": "https://rapiwa.com/xyz.jpg", "mimetype": "image/jpeg"])
URLSession.shared.dataTask(with: request).resume()

powershell

$body = @{ group_id = "XXXXXXXXXXXX"; message_type = "image"; message = "Here is an image for you!"; media_url = "https://rapiwa.com/xyz.jpg"; mimetype = "image/jpeg" } | ConvertTo-Json
Invoke-RestMethod -Uri "https://app.rapiwa.com/api/group/send-message" -Method Post -Headers @{"Content-Type"="application/json"; "Authorization"="Bearer Your_Device_Key"} -Body $body

typescript

await fetch('https://app.rapiwa.com/api/group/send-message', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json', 'Authorization': 'Bearer Your_Device_Key' },
  body: JSON.stringify({ group_id: 'XXXXXXXXXXXX', message_type: 'image', message: 'Here is an image for you!', media_url: 'https://rapiwa.com/xyz.jpg', mimetype: 'image/jpeg' })
});

rust

let payload = json!({"group_id": "XXXXXXXXXXXX", "message_type": "image", "message": "Here is an image for you!", "media_url": "https://rapiwa.com/xyz.jpg", "mimetype": "image/jpeg"});
client.post("https://app.rapiwa.com/api/group/send-message").header("Authorization", "Bearer Your_Device_Key").json(&payload).send().await?;

💡 Tip: Keep your Device Key secure. Never share it publicly.

Contributors: Mannan Zinnat