Create/Update Contact

Create or update a contact in the phone's address book.

PUT

https://api.wawp.net/v2/contacts/{chatId}?chatId=123456789%40c.us&instance_id=123456789&access_token=123456789&firstName=John&lastName=Doe

Authentication Required

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

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Test /v2/contacts/{chatId} endpoint

Supports

PUT

No query parameters required

This endpoint doesn't expect data in the URL.

Local Sync

Updates the contact name in the phone's address book.

Permissions

Requires 'Write Contacts' permission on the host device.

Best practices

Keep the contact name aligned with your CRM's customer name.
Use formatted names (e.g., 'Alice - Support') for clarity.

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`		Your unique WhatsApp Instance ID Example:
`string`		Your API Access Token Example:
`string`		The unique ID of the contact Example:
`string`	—	First name of the contact Example:
`string`	—	Last name of the contact 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/contacts/123456789@c.us";
3const params = new URLSearchParams({
4  "instance_id": "123456789",
5  "access_token": "123456789"
6}).toString();
7const body = {
8  "firstName": "John",
9  "lastName": "Doe"
10};
11
12fetch(`${baseUrl}${endpoint}${params ? '?' + params : ''}`, {
13  method: "PUT",
14  headers: { "Content-Type": "application/json" },
15  body: JSON.stringify(body)
16})
17  .then(async (response) => {
18    if (response.ok) {
19      const data = await response.json();
20      console.log("Success:", data);
21      return data;
22    }
23    
24    // Error Handling
25    if (response.status === 401) {
26      console.error("Error 401: Unauthorized - Invalid or Missing Access Token");
27    }
28    if (response.status === 400) {
29      console.error("Error 400: Bad Request - Invalid Parameter Format");
30    }
31    if (response.status === 500) {
32      console.error("Error 500: Internal Server Error - Unexpected Failure");
33    }
34
35    const errorText = await response.text();
36    console.error(`Error ${response.status}: ${errorText}`);
37  })
38  .catch((error) => console.error("Network Error:", error));

Interactive SamplesUTF-8

Ln 38, 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.

Contact updated successfully

application/json

boolean *

Example

{
"ok": true
}

Bad Request - Invalid Parameter Format

Unauthorized - Invalid or Missing Access Token

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