How to add leads to a campaign in zoho crm using api

How to add leads to a campaign in zoho crm using api

I made a custom php script to send leads who filled website from to zoho crm. I also want the leads to enter a specific campaign. I can't seem to figure how to do it. It will be helpful even if you provide url, parameters, json which is working in postman, rest I can figure out.

Here's the code which I made
  2.  // Get the form data
  3.     $submission = WPCF7_Submission::get_instance();
  4.     
  5.     if ($submission) {
  6.         $posted_data = $submission->get_posted_data();

  8.         $zoho_form_first_name = isset($posted_data['your-name']) ? $posted_data['your-name'] : '';
  9.         $zoho_form_last_name = isset($posted_data['your-last']) ? $posted_data['your-last'] : '';
  10.         $zoho_form_company = isset($posted_data['your-company']) ? $posted_data['your-company'] : '';
  11.         $zoho_form_email = isset($posted_data['your-email']) ? $posted_data['your-email'] : '';
  12.         $zoho_form_company_size = isset($posted_data['radio-420']) ? $posted_data['radio-420'] : '';
  13.         $zoho_form_industry = isset($posted_data['radio-427']) ? $posted_data['radio-427'] : '';
  14.         $zoho_form_expert = isset($posted_data['radio-323']) ? $posted_data['radio-323'] : '';
  15.         $zoho_form_expert_time = isset($posted_data['radio-499']) ? $posted_data['radio-499'] : '';
  16.         $zoho_form_expert_engagement = isset($posted_data['radio-624']) ? $posted_data['radio-624'] : '';
  17.         $zoho_form_online = isset($posted_data['radio-354']) ? $posted_data['radio-354'] : '';
  18.         $zoho_form_hear_about_us = isset($posted_data['radio-452']) ? $posted_data['radio-452'] : '';
  19.         $zoho_form_genai = isset($posted_data['radio-694']) ? $posted_data['radio-694'] : '';

  21.         // Prepare the data to send to Zoho CRM
  22.         $data = array(
  23.             "data" => [ 
  24.                 [   
  25.                     "Owner" => [
  26.                             "name" => "John",
  27.                             "id" => "696191000000317001"
  28.                     ],
  29.                     "First_Name" => $zoho_form_first_name,
  30.                     "Last_Name" => $zoho_form_last_name,
  31.                     "Industry"=> $zoho_form_industry[0],
  32.                     "Company" => $zoho_form_company,
  33.                     "Email" => $zoho_form_email,
  34. "Lead_Status" => "Not Contacted",
  35. "Lead_Source" => "Website",
  36.                     "Description" => "1. Company Size: {$zoho_form_company_size[0]}
  38.                                       2. Expert Requirement: {$zoho_form_expert[0]}
  39.   
  40.                                       3. Expert Required in: {$zoho_form_expert_time[0]}
  41.   
  42.                                       4. Expert Engagement Required: {$zoho_form_expert_engagement[0]}
  43.   
  44.                                       5. Comfortable with working remotely: {$zoho_form_online[0]}
  45.   
  46.                                       6. How did you hear about us: {$zoho_form_hear_about_us[0]}
  47.   
  48.                                       7. Generative AI Try: {$zoho_form_genai[0]}"
  49.                                       
  50.                                       
  51.                 ]
  52.             ]
  53.         );

  55.         // Convert array to JSON
  56.         $json_data = json_encode($data);

  58.         // Get Zoho Access Token
  59.         $access_token = get_zoho_access_token();

  61.         // Zoho CRM API URL for Leads/Contacts
  62.         $zoho_api_url = 'https://www.zohoapis.in/crm/v7/Leads'; // Change 'Leads' to 'Contacts' if needed

  64.         // Set up HTTP POST request headers
  65.         $args = array(
  66.             'body'        => $json_data,
  67.             'headers'     => array(
  68.                 'Authorization' => 'Zoho-oauthtoken ' . $access_token,
  69.                 'Content-Type'  => 'application/json',
  70.             ),
  71.         );

  73.         // Send data to Zoho CRM using wp_remote_post
  74.         $response = wp_remote_post($zoho_api_url, $args);

  76.         if (is_wp_error($response)) {
  77.             error_log('Zoho CRM API error: ' . $response->get_error_message());
  78.         } else {
  79.             error_log('Zoho CRM API response: ' . wp_remote_retrieve_body($response));
  80.            

  82.             // Parse the response to get the created lead's ID
  83.             $response_body = wp_remote_retrieve_body($response);
  84.             $response_data = json_decode($response_body, true);
  85.             log_errors('lead posted'. $response_body);
  86.             if (isset($response_data['data'][0]['id'])) {
  87.                 $lead_id = $response_data['data'][0]['id'];

  89.                
  90.             }
  91.         }
  92.     }
  93. }