curl --request PUT \
  --url https://api.izap.ai/api/v1/businesses/whatsapp_cloud/numbers/{number_id}/assistant \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'business-id: <business-id>' \
  --data '
{
  "assistant_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
}
'

import requests

url = "https://api.izap.ai/api/v1/businesses/whatsapp_cloud/numbers/{number_id}/assistant"

payload = { "assistant_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a" }
headers = {
    "business-id": "<business-id>",
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.put(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'PUT',
  headers: {
    'business-id': '<business-id>',
    Authorization: 'Bearer <token>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({assistant_id: '3c90c3cc-0d44-4b50-8888-8dd25736052a'})
};

fetch('https://api.izap.ai/api/v1/businesses/whatsapp_cloud/numbers/{number_id}/assistant', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.izap.ai/api/v1/businesses/whatsapp_cloud/numbers/{number_id}/assistant",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PUT",
  CURLOPT_POSTFIELDS => json_encode([
    'assistant_id' => '3c90c3cc-0d44-4b50-8888-8dd25736052a'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json",
    "business-id: <business-id>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.izap.ai/api/v1/businesses/whatsapp_cloud/numbers/{number_id}/assistant"

	payload := strings.NewReader("{\n  \"assistant_id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\"\n}")

	req, _ := http.NewRequest("PUT", url, payload)

	req.Header.Add("business-id", "<business-id>")
	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.put("https://api.izap.ai/api/v1/businesses/whatsapp_cloud/numbers/{number_id}/assistant")
  .header("business-id", "<business-id>")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"assistant_id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.izap.ai/api/v1/businesses/whatsapp_cloud/numbers/{number_id}/assistant")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Put.new(url)
request["business-id"] = '<business-id>'
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"assistant_id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\"\n}"

response = http.request(request)
puts response.read_body

{
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "phone_number": "<string>",
  "assistant_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "assistant_name": "<string>",
  "code_verification_status": "<string>",
  "display_phone_number": "<string>",
  "messaging_backend": "izap",
  "phone_number_id": "<string>",
  "platform_type": "<string>",
  "quality_rating": "<string>",
  "status": "<string>",
  "verified_name": "<string>",
  "waba_id": "<string>"
}

{
  "detail": "<string>",
  "code": "<string>"
}

{
  "detail": "<string>",
  "code": "<string>"
}

{
  "detail": "<string>",
  "code": "<string>"
}

{
  "detail": [
    {
      "loc": [
        "<string>"
      ],
      "msg": "<string>",
      "type": "<string>",
      "ctx": {},
      "input": "<unknown>"
    }
  ]
}

{
  "detail": "<string>",
  "code": "<string>"
}