Click-to-Call

A button that calls you, or requests a callback.

Drop-in widget. Load https://webforms.dropcowboy.com/latest/dropcowboy-click-to-call.min.js and pass it a site token your server mints. Do not rebuild browser calling or the callback request; the widget already does it.

When to use this vs REST

Use Click-to-Call for a button that calls your business or asks for a callback. There is no REST equivalent for the visitor side.

Do not rebuild

• Browser calling.
• The callback request flow.

Drop-in

1. On your server, trade your API key for a short-lived site token (the key needs numbers:write):

// Your server. Browser code never sees KEY/SECRET.
app.post('/dropcowboy/token', async function (req, res) {
  const r = await fetch('https://api-v2.dropcowboy.com/phone/public/embed/token', {
    method: 'POST',
    headers: {
      'x-key': process.env.DC_KEY,
      'x-secret': process.env.DC_SECRET,
      'Content-Type': 'application/json'
    },
    body: JSON.stringify({ site_id: process.env.DC_SITE_ID, scope: ['dialer:webrtc'], ttl_seconds: 900 })
  });
  const body = await r.json();
  if (!r.ok) return res.status(r.status).json(body);
  // The API wraps results in data. Hand the browser just the token.
  res.json({ token: body.data.token, expires_at: body.data.expires_at });
});

Or test the mint with cURL:

# On your server: trade your API key (needs numbers:write) for a site token. 1 hour max.
curl -s -X POST https://api-v2.dropcowboy.com/phone/public/embed/token \
  -H "x-key: $KEY" -H "x-secret: $SECRET" \
  -H "Content-Type: application/json" \
  -d '{"site_id":"YOUR_SITE_ID","scope":["dialer:webrtc"],"ttl_seconds":900}'

1. Load the script, init with the token, and call a method:

<script src="https://webforms.dropcowboy.com/latest/dropcowboy-click-to-call.min.js"></script>
<script>
(async function () {
  const minted = await fetch('/dropcowboy/token', { method: 'POST' }).then(function (r) { return r.json(); });
  await DropCowboy.clickToCall.init({ token: minted.token });
  DropCowboy.clickToCall.setTheme({ theme: 'LIGHT', primaryColor: '#009efb' });
  DropCowboy.clickToCall.addCallEndedListener(function (event) {
    console.log('ended', event.disposition);
  });
  document.getElementById('call-us').addEventListener('click', function () {
    DropCowboy.clickToCall.startCall('+15125550100');
  });
  document.getElementById('call-me-back').addEventListener('click', function () {
    DropCowboy.clickToCall.startCall(document.getElementById('phone').value, {
      mode: 'callback',
      consentId: window.lastConsentId
    });
  });
})();
</script>

JS API / HTML tag

HTML tag:

<dc-click-to-call number="+15125550100"></dc-click-to-call>

Auth and scopes

Site token. Your API secret stays on your server.

Site token scope: dialer:webrtc. Mint it with POST https://api-v2.dropcowboy.com/phone/public/embed/token using an API key with numbers:write. Tokens last up to one hour.

Limits

• Site tokens last at most one hour (the default). Mint a fresh one per page load or session; do not cache one across users.
• Calls and texts need a connected carrier (BYOC) and prepaid balance. Without them the mint returns 402 or 403 for telephony scopes.
• Callback mode needs a consent_id from Consent Capture.

Related REST

Routes are on https://api-v2.dropcowboy.com.

• POST /phone/public/embed/token - mint the site token

Full reference: Embed site tokens.