twilio-node-server-worker-capability-token.js

// Helper function to create Policy
function buildWorkspacePolicy(options) {
  options = options || {};
  var resources = options.resources || [];
  const workspaceSid = process.env.WORKSPACE_SID
  const version = 'v1';
  var urlComponents = [TASKROUTER_BASE_URL, version, 'Workspaces', workspaceSid]

  return new Policy({
    url: urlComponents.concat(resources).join('/'),
    method: options.method || 'GET',
    allow: true
  });
}

function workerCapability(request, response) {
  const accountSid = process.env.ACCOUNT_SID
  const authToken = process.env.AUTH_TOKEN
  const workspaceSid = process.env.WORKSPACE_SID

  const workerSid = request.query.workerSid

  const capability = new TaskRouterCapability({
    accountSid: accountSid,
    authToken: authToken,
    workspaceSid: workspaceSid,
    channelId: workerSid
  });

  // Event Bridge Policies
  var eventBridgePolicies = util.defaultEventBridgePolicies(accountSid, workerSid);

  var workspacePolicies = [
    // Workspace fetch Policy
    buildWorkspacePolicy(),
    // Workspace Activities Update Policy
    buildWorkspacePolicy({ resources: ['Activities'], method: 'POST' }),
    // Workspace Activities Worker Reserations Policy
    buildWorkspacePolicy({ resources: ['Workers', workerSid, 'Reservations', '**'], method: 'POST' }),
  ];

  eventBridgePolicies.concat(workspacePolicies).forEach(function (policy) {
    capability.addPolicy(policy);
  });

  var token = capability.toJwt();
  return response.send({ token: token })
}