Serverless Contact Us Form

Quickly deploy an endpoint to handle your contact us form on your static website. We don't want to have servers running just to handle our contact us form which rarely gets invoked. Oh, and we also need Captcha because we don't have time in our lives for spam.

You can get your reCAPTCHA secret here: https://www.google.com/recaptcha/admin#list

Package and Deploy

aws cloudformation package --template-file stack.yml --output-template-file stack-output.yml --s3-bucket serverless-contact-us-form

aws cloudformation deploy --template-file stack-output.yml --stack-name contact-us --capabilities CAPABILITY_IAM --parameter-overrides "Subject=Contact Us" "ReCaptchaSecret=???" "ToEmailAddress=???"

What AWS resources does this template use?

• Lambda (API Function)
• API Gateway (HTTP proxy to Lambda)
• SNS (Send us the email)
• IAM (AWS permissions & users)

HTML Form

<form action="<your api gateway url>" method="POST" id="contact-us-form">
    <div class="form-group">
        <label for="nameInputEmail1">Name</label>
        <input type="text" class="form-control" id="nameInputEmail1" name="name" placeholder="Full name">
    </div>
    <div class="form-group">
        <label for="exampleInputEmail1">Email address</label>
        <input type="email" class="form-control" id="exampleInputEmail1" name="email"
               placeholder="Enter email">
    </div>
    <div class="form-group">
        <label for="phoneInputEmail1">Phone number</label>
        <input type="text" class="form-control" id="phoneInputEmail1" name="phone"
               placeholder="Enter phone">
    </div>
    <div class="form-group">
        <label for="messageInputEmail1">Message</label>
        <textarea type="textarea" class="form-control" id="messageInputEmail1" name="message"
                  placeholder="Enter message"></textarea>
    </div>
    <p class="thanks">Thanks!  We'll contact you soon.</p>
    <button type="submit" class="btn btn-primary g-recaptcha"
      data-sitekey="6LdrWS0UAAAAAPAokGKpRhrObJkaaCX0EMsEiofN"
      data-callback="onContctUsSubmit" data-badge="inline" >Submit</button>
</form>

JQuery example...

$.post($("#contact-us-form").attr('action'), JSON.stringify({
    name: $("#contact-us-form input[name='name']").val(),
    email: $("#contact-us-form input[name='email']").val(),
    phone: $("#contact-us-form input[name='phone']").val(),
    message: $("#contact-us-form textarea[name='message']").val(),
    'g-recaptcha-response': $("#contact-us-form textarea[name='g-recaptcha-response']").val()
}), function (data) {
    $(".thanks").show();
    $("#contact-us-form button").hide();
}, 'json');