Send Voice

Voice messages accept OGG/Opus. Required params: instance_id, access_token, chatId, file[url], file[filename], file[mimetype], convert.

POST

https://api.wawp.net/v2/send/voice?instance_id=123456789&access_token=YOUR_ACCESS_TOKEN&chatId=447441429009%40c.us&file%5Burl%5D=https%3A%2F%2Fraw.githubusercontent.com%2Frafaelreis-hotmart%2FAudio-Sample-files%2Fmaster%2Fsample.ogg&file%5Bfilename%5D=voice.ogg&file%5Bmimetype%5D=audio%2Fogg%3B+codecs%3Dopus&convert=true&reply_to=false_111...AAAA

Authentication Required

Login to swap the placeholders with your real Instance ID and Access Token.

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Test /v2/send/voice endpoint

Supports

POSTGET

No query parameters required

This endpoint doesn't expect data in the URL.

Format

Requires OGG format with Opus codec for PTT (Push-to-Talk) styling.

Experience

Appears as a playable waveform in the chat.

Best practices

Convert audio to the correct format using ffmpeg before sending.
Keep voice notes short (under 2 minutes) for better engagement.

Request Parameters

Configure the parameters required to interact with this endpoint. All query and body arguments are listed below with their details.

Request Body

Sent as a JSON object

`string`		Unique ID of the WhatsApp session Example:
`string`		API access token Example:
`string`		Recipient's WhatsApp ID (JID). Supports Individuals (@c.us), Groups (@g.us), and Newsletters (@newsletter). Example:
`string`		Publicly accessible HTTPS URL of the audio file Example:
`string`		Filename for the audio note Example:
`string`		MIME type (audio/ogg; codecs=opus recommended) Example:
`boolean`		Automatically transcode to WhatsApp compatible OGG/Opus Example:
`string`	—	The ID of the message you are replying to Example:

Request Samples

Use these ready-to-go code snippets to integrate our API into your project quickly and efficiently. Choose your preferred language and library.

1const baseUrl = "https://api.wawp.net";
2const endpoint = "/v2/send/voice";
3const params = new URLSearchParams({
4  "instance_id": "123456789",
5  "access_token": "YOUR_ACCESS_TOKEN"
6}).toString();
7const body = {
8  "chatId": "447441429009@c.us",
9  "file[url]": "https://raw.githubusercontent.com/rafaelreis-hotmart/Audio-Sample-files/master/sample.ogg",
10  "file[filename]": "voice.ogg",
11  "file[mimetype]": "audio/ogg; codecs=opus",
12  "convert": "true",
13  "reply_to": "false_111...AAAA"
14};
15
16fetch(`${baseUrl}${endpoint}${params ? '?' + params : ''}`, {
17  method: "POST",
18  headers: { "Content-Type": "application/json" },
19  body: JSON.stringify(body)
20})
21  .then(async (response) => {
22    if (response.ok) {
23      const data = await response.json();
24      console.log("Success:", data);
25      return data;
26    }
27    
28    // Error Handling
29    if (response.status === 400) {
30      console.error("Error 400: Bad Request - Missing Required Parameter(s)");
31    }
32    if (response.status === 400) {
33      console.error("Error 400: Bad Request - Invalid Number (Egypt)");
34    }
35    if (response.status === 400) {
36      console.error("Error 400: Bad Request - Invalid Number (Saudi Arabia)");
37    }
38    if (response.status === 400) {
39      console.error("Error 400: Bad Request - Invalid Number (Unknown)");
40    }
41    if (response.status === 400) {
42      console.error("Error 400: Bad Request (XML Format)");
43    }
44    if (response.status === 400) {
45      console.error("Error 400: Bad Request (Plain Text)");
46    }
47    if (response.status === 401) {
48      console.error("Error 401: Unauthorized - Invalid or Missing Access Token");
49    }
50    if (response.status === 401) {
51      console.error("Error 401: Unauthorized (XML Format)");
52    }
53    if (response.status === 404) {
54      console.error("Error 404: Not Found - Session Does Not Exist");
55    }
56    if (response.status === 404) {
57      console.error("Error 404: Not Found (XML Format)");
58    }
59    if (response.status === 429) {
60      console.error("Error 429: Too Many Requests - Rate Limit Exceeded");
61    }
62    if (response.status === 500) {
63      console.error("Error 500: Internal Server Error - Unexpected Failure");
64    }
65    if (response.status === 500) {
66      console.error("Error 500: Internal Server Error (HTML)");
67    }
68    if (response.status === 502) {
69      console.error("Error 502: Bad Gateway - Connection Failed to Upstream");
70    }
71    if (response.status === 502) {
72      console.error("Error 502: Bad Gateway (XML Format)");
73    }
74
75    const errorText = await response.text();
76    console.error(`Error ${response.status}: ${errorText}`);
77  })
78  .catch((error) => console.error("Network Error:", error));

Interactive SamplesUTF-8

Ln 78, Col 1javascript

Expected Responses

Explore all possible responses and outcomes from the server. We have documented each status code with data examples to make success and error handling easier.

Message Sent Successfully

3 Variants

Type:

application/json

object *

string *

object *

number *

boolean *

string *

number *

string *

boolean *

number *

boolean *

array *

boolean *

array *

Example

{
"_data": {
  "id": {
    "fromMe": true,
    "remote": "000000000000@c.us",
    "id": "MSG_ID_123456",
    "_serialized": "true_000000000000@c.us_MSG_ID_123456"
    },
  "viewed": false,
  "body": "BASE64_IMAGE_DATA",
  "type": "image",
  "t": 1759108866,
  "from": {
    "server": "c.us",
    "user": "111111111111",
    "_serialized": "111111111111@c.us"
    },
  "to": {
    "server": "c.us",
    "user": "000000000000",
    "_serialized": "000000000000@c.us"
    },
  "ack": 0,
  "isNewMsg": true,
  "star": false,
  "kicNotified": false,
  "caption": "Here's your requested image.",
  "deprecatedMms3Url": "https://example.com/media-url",
  "directPath": "/media/direct/path/example",
  "mimetype": "image/jpeg",
  "filehash": "FILE_HASH_PLACEHOLDER",
  "encFilehash": "ENC_FILE_HASH_PLACEHOLDER",
  "size": 192487,
  "mediaKey": "MEDIA_KEY_PLACEHOLDER",
  "mediaKeyTimestamp": 1759108865,
  "streamable": false,
  "mediaHandle": null,
  "isFromTemplate": false,
  "pollInvalidated": false,
  "isSentCagPollCreation": false,
  "latestEditMsgKey": null,
  "latestEditSenderTimestampMs": null,
  "mentionedJidList": {
    },
  "groupMentions": {
    },
  "isEventCanceled": false,
  "eventInvalidated": false,
  "isVcardOverMmsDocument": false,
  "isForwarded": false,
  "isQuestion": false,
  "questionReplyQuotedMessage": null,
  "questionResponsesCount": 0,
  "readQuestionResponsesCount": 0,
  "labels": {
    },
  "hasReaction": false,
  "disappearingModeInitiator": "chat",
  "disappearingModeTrigger": "chat_settings",
  "productHeaderImageRejected": false,
  "lastPlaybackProgress": 0,
  "isDynamicReplyButtonsMsg": false,
  "isCarouselCard": false,
  "parentMsgId": null,
  "callSilenceReason": null,
  "isVideoCall": false,
  "callDuration": null,
  "callCreator": null,
  "callParticipants": null,
  "isCallLink": null,
  "callLinkToken": null,
  "isMdHistoryMsg": false,
  "stickerSentTs": 0,
  "lastUpdateFromServerTs": 0,
  "invokedBotWid": null,
  "bizBotType": null,
  "botResponseTargetId": null,
  "botPluginType": null,
  "botPluginReferenceIndex": null,
  "botPluginSearchProvider": null,
  "botPluginSearchUrl": null,
  "botPluginSearchQuery": null,
  "botPluginMaybeParent": false,
  "botReelPluginThumbnailCdnUrl": null,
  "botMessageDisclaimerText": null,
  "botMsgBodyType": null,
  "requiresDirectConnection": false,
  "bizContentPlaceholderType": null,
  "hostedBizEncStateMismatch": false,
  "senderOrRecipientAccountTypeHosted": false,
  "placeholderCreatedWhenAccountIsHosted": false,
  "galaxyFlowDisabled": false,
  "links": {
    }
  },
"mediaKey": "MEDIA_KEY_PLACEHOLDER",
"id": {
  "fromMe": true,
  "remote": "000000000000@c.us",
  "id": "MSG_ID_123456",
  "_serialized": "true_000000000000@c.us_MSG_ID_123456"
  },
"ack": 0,
"hasMedia": true,
"body": "Here's your requested image.",
"type": "image",
"timestamp": 1759108866,
"from": "111111111111@c.us",
"to": "000000000000@c.us",
"deviceType": "android",
"isForwarded": false,
"forwardingScore": 0,
"isStatus": false,
"isStarred": false,
"fromMe": true,
"hasQuotedMsg": false,
"hasReaction": false,
"vCards": {
  },
"mentionedIds": {
  },
"groupMentions": {
  },
"isGif": false,
"links": {
  }
}

Bad Request - Missing Required Parameter(s)

6 Variants

Unauthorized - Invalid or Missing Access Token

2 Variants

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