{"id":6974,"date":"2025-11-07T17:46:02","date_gmt":"2025-11-07T12:16:02","guid":{"rendered":"https:\/\/simplileap.com\/blog\/?p=6974"},"modified":"2025-11-07T18:14:29","modified_gmt":"2025-11-07T12:44:29","slug":"how-to-submit-contact-form-7-data-via-rest-api","status":"publish","type":"post","link":"https:\/\/simplileap.com\/blog\/technical\/how-to-submit-contact-form-7-data-via-rest-api\/","title":{"rendered":"How to Submit Contact Form 7 Data via REST API"},"content":{"rendered":"

Introduction:<\/strong><\/h2>\n

Contact Form 7 is the most popular and widely used WordPress plugin. It works perfectly for standard form submissions, but in advanced use cases contact form-7 often requires programmatic submissions via the <\/span>REST API.\u00a0 <\/b>Contact Form – 7 can now be integrated with custom forms, CRM\u2019s and third-party services, you can use Contact Form Rest API to send form submissions securely.<\/span><\/p>\n

What is a REST API?<\/b><\/h3>\n

A <\/span>REST API<\/b> (Representational State Transfer \u2013 Application Programming Interface) is a method that enables different applications to communicate with each other over the internet using a set of defined rules.<\/span><\/p>\n

REST<\/b> is an architectural approach that specifies how data should be accessed and transmitted.<\/span><\/p>\n

API<\/b> acts as a connector that lets two systems\u2014whether applications, servers, or services\u2014exchange information.<\/span><\/p>\n

When working with a REST API, you usually rely on standard HTTP methods, such as:<\/span><\/p>\n

GET<\/b> \u2192 Fetch data<\/span><\/p>\n

POST<\/b> \u2192 Add or send new data<\/span><\/p>\n

PUT\/PATCH<\/b> \u2192 Modify existing data<\/span><\/p>\n

DELETE<\/b> \u2192 Remove data<\/span><\/p>\n

Benefits of Using the Contact Form 7 REST API<\/b><\/h2>\n

1. Fill out forms anywhere – <\/b>Data can be sent using CF7 forms from external platforms, mobile apps, or websites.<\/span><\/p>\n

2. Frontend design flexibility –<\/b> Use React, Vue, or other frameworks to create bespoke forms, and let CF7 manage submissions.<\/span><\/p>\n

3. Easy integrations – <\/b>Connect to automation systems, email tools, and CRMs with ease.<\/span><\/p>\n

4. Simple error handling –\u00a0 <\/b>Get organized answers that indicate validation problems or success.<\/span><\/p>\n

5. Safe and consistent –\u00a0 <\/b>Use WordPress and HTTPS safeguards to keep data safe while applying the same validation guidelines everywhere.<\/span><\/p>\n

Step-1 : Exploring the Contact Form 7 REST API<\/b><\/h4>\n

A REST API endpoint has been provided by every CF7 form:
\n<\/span> https:\/\/yourdomain.com\/wp-json\/contact-form-7\/v1\/contact-forms\/{form_id}\/feedback<\/span><\/p>\n

1. Open the form in the WordPress admin.<\/span><\/p>\n

2. Look at the browser\u2019s address bar.<\/span><\/p>\n

3. The URL will look like this:<\/span>
\n\"\"
\n4. The number after post <\/span>=<\/span> (<\/span>13230<\/span> in this image) is your <\/span>FORM ID<\/b>.<\/span><\/p>\n

5. Use this ID in your API endpoint:
\n<\/span>Method: POST<\/strong>
\nhttps:\/\/yourdomain.com\/wp-json\/contact-form-7\/v1\/contact-forms\/<\/span>13230<\/b>\/feedback<\/span><\/p>\n

{form_id}<\/b> – This is the form’s WordPress database ID, not its shortcode ID. It is located in the WordPress admin URL while the form is being edited.<\/span><\/p>\n

Approach: POST<\/span><\/p>\n

Types of Content: application\/x-www-form-urlencoded or application\/json<\/span><\/p>\n

For public forms, authentication is optional; if the website limits access to the API, it is necessary.<\/span><\/p>\n

Step-2 : Preparing Form Data<\/b>
\n<\/b><\/b><\/h4>\n

1<\/span>. <\/b>The field names in your request must exactly match the form fields specified in CF7 when sending data to the Contact Form 7 REST API.<\/span><\/p>\n

2. CF7 identifies each input by its field name<\/b> (not the label). If the names don\u2019t match, the submission will fail or return a validation error.
\n<\/span><\/p>\n

3. Example CF7 Form:<\/span>
\n<\/span>Suppose your form contains these fields:<\/span><\/p>\n

\"\"<\/p>\n

4. Example HTML Form:<\/span><\/p>\n

\n\t\t\t
\n
\n
\n
<\/div>\n
<\/div>\n
<\/div>\n <\/div>\n
\n \n Copy Code<\/span>\n Copied<\/span>\n Use a different Browser<\/span><\/a>\n <\/div>\n <\/div>\n 
<\/p>\n
<form class=\"contact-form\" id=\"contactForm\">\r\n  <div class=\"form-group\">\r\n    <label for=\"name\">Name *<\/label>\r\n    <input type=\"text\" id=\"name\" name=\"your-name\" placeholder=\"Name *\" required>\r\n  <\/div>\r\n\r\n  <div class=\"form-group\">\r\n    <label for=\"phone\">Phone *<\/label>\r\n    <input type=\"tel\" id=\"phone\" name=\"your-phone\" placeholder=\"Phone *\" required>\r\n    <span id=\"phone-error\" style=\"color:red; display:none;\">\r\n      Please enter a valid phone number\r\n    <\/span>\r\n  <\/div>\r\n\r\n  <div class=\"form-group\">\r\n    <label for=\"email\">Email<\/label>\r\n    <input type=\"email\" id=\"email\" name=\"your-email\" placeholder=\"Email\">\r\n  <\/div>\r\n\r\n  <button type=\"submit\" class=\"submit-btn\" id=\"submitBtn\">Submit<\/button>\r\n<\/form>\r\n<\/pre>\n
<\/code><\/pre>\n\t\t\t<\/div>\n        <\/div>\n
5. your-name, your-email, your-message, and your-file<\/span> are the <\/span>field names<\/b>.<\/span><\/p>\n
6. You must use these exact names when sending data via the API.<\/p>\n
Step-3 : Submitting Data via REST API<\/b><\/h4>\n
<\/b>1. Using JavaScript (Fetch API)<\/p>\n
\n\t\t\t
\n                
\n                    
\n                        
<\/div>\n                        
<\/div>\n                        
<\/div>\n                    <\/div>\n                    
\n                        \n                        Copy Code<\/span>\n                        Copied<\/span>\n                        Use a different Browser<\/span><\/a>\n                    <\/div>\n                <\/div>\n                
<\/p>\n
<script>\r\nasync function submitCF7Form() {\r\n  const formData = {\r\n    \"your-name\": \"John Doe\",\r\n    \"your-email\": \"john@example.com\",\r\n    \"your-message\": \"Testing CF7 REST API submission\"\r\n  };\r\n\r\n  try {\r\n    const response = await fetch('https:\/\/yourdomain.com\/wp-json\/contact-form-7\/v1\/contact-forms\/123\/feedback', {\r\n      method: 'POST',\r\n      headers: { 'Content-Type': 'application\/json' },\r\n      body: JSON.stringify(formData)\r\n    });\r\n\r\n    const result = await response.json();\r\n\r\n    if(result.status === 'mail_sent') {\r\n      console.log('Form submitted successfully!');\r\n    } else if(result.status === 'validation_failed') {\r\n      console.error('Validation errors:', result.invalid_fields);\r\n    } else {\r\n      console.error('Submission failed:', result.message);\r\n    }\r\n  } catch (error) {\r\n    console.error('Network or server error:', error);\r\n  }\r\n}\r\n\r\nsubmitCF7Form();\r\n<\/script><\/pre>\n
<\/code><\/pre>\n\t\t\t<\/div>\n        <\/div>\n
Note<\/b>: <\/span>https:\/\/yourdomain.com\/wp-json\/contact-form-7\/v1\/contact-forms\/123\/feedback<\/span><\/a>Replace {form_id} with your actual form ID. You can find the form ID in the URL when editing the form in WordPress, e.g., post=14498.<\/span>
\n<\/span><\/p>\n
2.\u00a0 Using PHP (cURL)<\/span><\/p>\n
\n\t\t\t
\n                
\n                    
\n                        
<\/div>\n                        
<\/div>\n                        
<\/div>\n                    <\/div>\n                    
\n                        \n                        Copy Code<\/span>\n                        Copied<\/span>\n                        Use a different Browser<\/span><\/a>\n                    <\/div>\n                <\/div>\n                
<\/p>\n
$form_id = 123;\r\n$url = \"https:\/\/yourdomain.com\/wp-json\/contact-form-7\/v1\/contact-forms\/{$form_id}\/feedback\";\r\n\r\n$data = [\r\n    'your-name' => 'John Doe',\r\n    'your-email' => 'john@example.com',\r\n    'your-message' => 'Hello from PHP via CF7 API'\r\n];\r\n\r\n$ch = curl_init($url);\r\ncurl_setopt($ch, CURLOPT_POST, true);\r\ncurl_setopt($ch, CURLOPT_HTTPHEADER, ['Content-Type: application\/json']);\r\ncurl_setopt($ch, CURLOPT_RETURNTRANSFER, true);\r\ncurl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));\r\n\r\n$response = curl_exec($ch);\r\ncurl_close($ch);\r\n\r\n$result = json_decode($response, true);\r\n\r\nif($result['status'] === 'mail_sent') {\r\n    echo \"Form submitted successfully!\";\r\n} elseif($result['status'] === 'validation_failed') {\r\n    print_r($result['invalid_fields']); \/\/ Handle errors\r\n} else {\r\n    echo \"Submission failed: \" . $result['message'];\r\n}<\/pre>\n
<\/code><\/pre>\n\t\t\t<\/div>\n        <\/div>\n
Step 4: Handling Validation and Errors<\/b>
\n<\/b><\/b><\/h4>\n
CF7 REST API returns structured JSON responses:<\/span><\/p>\n
\n\t\t\t
\n                
\n                    
\n                        
<\/div>\n                        
<\/div>\n                        
<\/div>\n                    <\/div>\n                    
\n                        \n                        Copy Code<\/span>\n                        Copied<\/span>\n                        Use a different Browser<\/span><\/a>\n                    <\/div>\n                <\/div>\n                
<\/span><\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 {\r\n\r\n\u00a0\u00a0\"status\": \"validation_failed\",\r\n\r\n\u00a0\u00a0\"invalid_fields\": [\r\n\r\n\u00a0\u00a0\u00a0\u00a0{\"name\": \"your-email\", \"message\": \"Email is required.\"}\r\n\r\n\u00a0\u00a0],\r\n\r\n\u00a0\u00a0\"message\": \"Validation errors occurred.\"\r\n\r\n}<\/pre>\n
<\/code><\/pre>\n\t\t\t<\/div>\n        <\/div><\/span>
\n<\/span> Note: <\/b>Always verify the status (mail_sent, mail_failed, validation_failed) before processing a response, show errors in your custom forms next to the corresponding fields, and keep track of every response to troubleshoot server problems.<\/p>\n
Step 5: Authentication & Security<\/b><\/h4>\n
<\/b>Even though CF7 forms are public by default, advanced integrations require security:<\/span><\/p>\n
1. HTTPS \u2013 Always use encrypted connections.<\/span><\/p>\n
2. WordPress Nonce \u2013 Validate requests originating from your site.<\/span><\/p>\n
3. JWT Authentication \u2013 Use JWT Authentication for WP REST API plugin for secure API submissions.<\/span><\/p>\n
4. Restrict Access \u2013 Limit API access to specific IPs or roles using functions.php.<\/span><\/p>\n
Step 6: Debugging & Error Handling<\/b><\/h4>\n
1. To facilitate development, enable WordPress WP_DEBUG.<\/span><\/p>\n
2. Log API responses so you may debug them.<\/span><\/p>\n
3. Make sure your mobile app or front-end handles server-side errors appropriately.<\/span><\/p>\n
Conclusion:<\/b><\/h3>\n
<\/b>Advanced form handling in WordPress is made possible by the Contact Form 7 REST API. The API allows you to submit forms from any frontend or application, interact with email tools, CRMs, and third-party services with ease, and provide uniform security and validation for all submissions.<\/span><\/p>\n
Whether your forms are submitted via a website, mobile app, or bespoke application, their dependability depends on your ability to recognize your form ID, accurately prepare field data, handle API responses, and implement appropriate authentication.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"
Introduction: Contact Form 7 is the most popular and widely used WordPress plugin. It works perfectly for standard form submissions, but in advanced use cases contact form-7 often requires programmatic submissions via the REST API.\u00a0 Contact Form – 7 can now be integrated with custom forms, CRM\u2019s and third-party services, you can use Contact Form […]<\/p>\n","protected":false},"author":7,"featured_media":7046,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[33],"tags":[],"class_list":["post-6974","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technical"],"acf":[],"yoast_head":"\nStep-by-Step Guide: Submit Contact Form 7 Data via REST API<\/title>\n<meta name=\"description\" content=\"How to submit Contact Form 7 data via REST API. 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