Send Image Message

POST

https://api.sendzen.io/v1/messages

Media Message Types and Specifications

This guide outlines the supported media types and their respective size limitations for messages sent via the SendZen API. Adhering to these specifications will ensure successful delivery of your media content.

Image Messages

Send engaging visuals with your WhatsApp messages.

Supported Formats: JPEG, PNG

Maximum File Size: 5 MB

Important Considerations

File Renaming: Ensure that the file extension accurately reflects the actual content type.

URL Accessibility: If providing a URL for media, ensure it is publicly accessible and directly downloadable.

Request

Authorization

Provide your bearer token in the

Authorization

header when making requests to protected resources.

Example:

Authorization: Bearer ********************

Body Params application/json

Examples

Responses

🟢202Accepted

application/json

Body

🟠400Bad Request

🟠401Unauthorized

🟠403Forbidden

🔴500Internal Server Error

Request Example

Shell

JavaScript

Java

Swift

cURL

Example Image Message using URLExample for Image Message using ID

curl --location --request POST 'https://api.sendzen.io/v1/messages' \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data-raw '{
    "from": "string",
    "to": "string",
    "type": "image",
    "image": {
        "link": "string",
        "caption": "string"
    }
}'

Response Example

202 - Example 1

{
    "message_id": "string",
    "status": "string",
    "to": "string",
    "timestamp": "string"
}

Modified at 2025-10-01 12:02:28

Send Text Message

Send Video Message

Send Image Message

Media Message Types and Specifications#

Image Messages#

Important Considerations#

Request

Responses

Media Message Types and Specifications

Image Messages

Important Considerations