Send Audio Messages
POST Method
Audio messages display an audio icon and a link to an audio file. When the WhatsApp user taps the icon, the WhatsApp client loads and plays the audio file.
To add an audio file to the message, you can either upload a media file with the media ID or link to a public media file URL in the messaging_object part of the API payload.
This document explains how to send an audio message.
Note:
You can upload only one audio file in a message.
Supported Audio Formats
The following table contains details about the supported audio file formats that can sent using this API:
Audio Type | Extension | MIME Type | Max Size |
---|---|---|---|
AAC | .aac | audio/aac | 16 MB |
AMR | .amr | audio/amr | 16 MB |
MP3 | .mp3 | audio/mpeg | 16 MB |
MP4 Audio | .m4a | audio/mp4 | 16 MB |
OGG Audio | .ogg | audio/ogg (OPUS codecs only; base audio/ogg not supported.) | 16 MB |
Prerequisites
- Before you get started, Create an API Key. To view the API Key and the SID, see View API Key and SID.
A prerequisite for using Kaleyra WhatsApp APIs is to have an active WhatsApp plan on kaleyra platform. - To set up a WhatsApp account on kaleyra.io, see Manual Signup
and Embedded Signup. - An active WhatsApp for Business API plan that includes:
- A WhatsApp business number.
- An associated profile with the business number.
- A WhatsApp verified and approved profile.
Base URL
https://<api_domain>/v2/<SID>
API Domain and Value
api_domain | Value |
---|---|
IN pod | api.in.kaleyra.io |
SG Pod | api.ap.kaleyra.io |
EU Pod | api.eu.kaleyra.io |
API Request to Send Audio Messages
To send audio messages use the https://<api_domain>/v2/<sid>/whatsapp/<phone_number>/messages
endpoint with the following request method:
Request Format
The following is the request format to send audio messages:
curl -X POST \
https://api.in.kaleyra.io/v2/HXAP16XXXXXX97IN/whatsapp/+91XXXXXXXXXX/messages \
-H 'Content-Type: <content_type>' \
-H 'api-key: <api-key>' \
-d '{
"messaging_object": {
"messaging_product": "<messaging_product>",
"recipient_type": "<recipient_type>",
"to": "<whatsapp_user_phone_number>",
"type": "<type>",
"audio": {
"id": "<media_id>",
"link": "<media_url>"
}
},
"extra_info": {
"ref": "<ref>",
"ref1": "<ref1>",
"ref2": "<ref2>",
"wa_source": "<wa_source>"
}
}'
Sample Request Format
The following is the sample request format to send audio messages:
curl -X POST \
https://api.in.kaleyra.io/v2/HXAP16XXXXXX97IN/whatsapp/+91XXXXXXXXXX/messages \
-H 'Content-Type: application/json' \
-H 'api-key: Axxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx3' \
-d '{
"messaging_object": {
"messaging_product":"whatsapp",
"recipient_type":"individual",
"to":"+16XXXXXX234",
"type":"audio",
"audio":{
"id":"xx746263127801xx",
"link":"https://www.luckyshrub.com/assets/lucky-track.aac",
}
},
"extra_info": {
"ref": "customer1",
"ref1": "marketing",
"ref2": "dictionary",
"wa_source": "api"
}
}'
URL Parameters and Headers
Following is the list of parameters and headers to send the outgoing message request:
Parameter / Headers | Data Type | Description | Example | Mandatory? |
---|---|---|---|---|
sid | String | Account SID (Security Identifier). | HXAP16XXXXXX97IN | Yes |
phone_number | String | Phone number of the end customer you want to send a message to. | +91XXXXXXXXXX | Yes (valid phone numbers only) |
Content-Type | String | Indicates the format of the content the API will be processing. | The only allowed value is application/json. | Yes |
api-key | String | API key generated from kaleyra platform account. | Axxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx3 | Yes |
Following is the list of attributes to be used in the payload to send the outgoing message:
Parameter | Data Type | Description | Example | Mandatory? |
---|---|---|---|---|
messaging_object | JSON object | Payload is supported only in JSON format. The messaging_object is the payload which contains the message object as defined by Meta which is used to send the WhatsApp message. | See the specific table for details. | Yes |
extra_info | JSON object | This object will contain additional details that a user can send for certain functionalities. | See the specific table for details. | No |
The following table describes the different attributes used for the messaging_object
JSON object:
Parameter | Data Type | Description | Example | Mandatory? |
---|---|---|---|---|
messaging_product | String | Messaging service used for the request. | Only allowed value is whatsapp | Yes |
recipient_type | String | Currently, you can only send messages to individuals. Default is individual. | Only allowed value is individual | No |
to | String | WhatsApp end-user phone number. It should include country code prefix following E.164 format. | +16XXXXXX234 | Yes |
type | String | The type of message you want to send. If omitted, defaults to text. | Only allowed value for sending this message is audio. | No |
audio | Array of objects | Contains the audio file information to be sent. | See the specific table for details. | Yes |
The following table describes the different attributes used for the audio
JSON object:
Parameter | Data Type | Description | Example | Mandatory? |
---|---|---|---|---|
id | String | Uploaded media asset ID. | 3674626312780147 | Required if using an uploaded media asset (recommended). |
link | String | URL of audio asset on your public server. For better performance, we recommend that you upload your media asset instead. | https://www.luckyshrub.com/assets/lucky-track.aac | Required if using an uploaded media asset (recommended). |
The following table describes the different attributes used for the extra_info
JSON object:
Parameter | Data Type | Description | Example | Mandatory? |
---|---|---|---|---|
ref | String | Include any contextual information in this parameter you want to associate with the request. For Example, Name, Customer ID, and many more. Limit: The variable can be 255 characters long only. This parameter will be available in report and callback. | customer1 | No |
ref1 | String | Include the contextual information in this parameter you want to associate with the request. For Example, Name, Customer ID, and many more. Limit: The variable can be 255 characters long only. This parameter will be available in report and callback. | marketing | No |
ref2 | String | Include the contextual information in this parameter you want to associate with the request. For Example, Name, Customer ID, and many more. Limit: The variable can be 255 characters long only. This parameter will be available in report and callback. | dictionary | No |
wa_source | String | Indicates the source from where the API has been triggered. Supported values for wa_source are "api", "clevertap", "zoho", "webengage", "shopify", "leadsquared", "responsys", "braze", "hubspot", "salesforce", "zapier", "eloqua", and "moengage". Note: If the customer passes any other value other than above-specified values, then the system will override that as the "API". | api | No |
Note:
In the case of ref, ref1, and ref2, if the length of the string exceeds 255 characters, it will be truncated.
Sample Success Response
The following success message appears with the status 202 Accepted:
202 Accepted
{
"code":"WA202"
"message":"Request Accepted",
"data":{
"message_id":"AXXXXXXXXXXXXXXXXXXX"
}
"error":{}
}
Sample Failure Response
The following are the failure responses:
401 Unauthorized
{
"code": "RBC001",
"message": "Incorrect SID or API key.",
"data": [],
"error": {
"error": "Incorrect SID or API key."
}
}
401 Unauthorized phone number
{
"code": "WA401",
"message": "Phone number is not present or does not belong to the account.",
"data": {},
"error": {
"phone_number": "Phone number is not present or does not belong to the account."
}
}
400 Incorrect payload
{
"code": "WA400",
"message": "Refer to correct payload format",
"data": {},
"error": {
"payload": "Incorrect payload format"
}
}
500 Internal Server Error
{
"code": "WA500",
"message": "Please try again later",
"data": {},
"error": {
"error": "Internal server error"
}
}
400 Low balance
{
"code": "E110",
"message": "Please check your balance, You have a low balance!",
"data": {},
"error": {
"balance": "Please check your balance, You have a low balance!"
}
}
401 Unauthorised Account type
{
"code": "WA-401",
"message": "API is not available for given customer.Please contact support for more info",
"data": {},
"error": {
"account": "API is not available for given customer.Please contact support for more info"
}
}
401 Unauthorized phone number version
{
"code": "WA-401",
"message": "The phone number you're using is associated with different Version of our WA API. Please use the appropriate endpoint.",
"data": {},
"error": {
"phone_number": "The phone number you're using is associated with different Version of our WA API. Please use the appropriate endpoint."
}
}
Updated about 13 hours ago