Sails JS action2 snippet

action2:
------------

module.exports = {

   friendlyName: 'Welcome user',

   description: 'Look up the specified user and welcome them, or redirect to a signup page if no user was found.',

   inputs: {
      userId: {
        description: 'The ID of the user to look up.',
        // By declaring a numeric example, Sails will automatically respond with `res.badRequest`
        // if the `userId` parameter is not a number.
        type: 'number',
        // By making the `userId` parameter required, Sails will automatically respond with
        // `res.badRequest` if it's left out.
        required: true
      }
   },

   exits: {
      success: {
        responseType: 'view',
        viewTemplatePath: 'pages/welcome'
      },
      notFound: {
        description: 'No user with the specified ID was found in the database.',
        responseType: 'notFound'
      }
   },

   fn: async function (inputs, exits) {

      // Look up the user whose ID was specified in the request.
      // Note that we don't have to validate that `userId` is a number;
      // the machine runner does this for us and returns `badRequest`
      // if validation fails.
      var user = await User.findOne({ id: inputs.userId });

      // If no user was found, respond "notFound" (like calling `res.notFound()`)
      if (!user) { return exits.notFound(); }

      // Display the welcome view.
      return exits.success({name: user.name});
   }
};

Sails JS Policies

Applying policies to a controller
==================================
config/policies.js

module.exports.policies = {
  UserController: {
    // By default, require requests to come from a logged-in user
    // (runs the policy in api/policies/isLoggedIn.js)
    '*': 'isLoggedIn',

    // Only allow admin users to delete other users
    // (runs the policy in api/policies/isAdmin.js)
    'delete': 'isAdmin',

    // Allow anyone to access the login action, even if they're not logged in.
    'login': true
  }
};

Applying policies to actions
----------------------------

module.exports.policies = {
  'user/*': 'isLoggedIn',
  'user/delete': 'isAdmin',
  'user/login': true
}

Sample policy
-------------
// policies/isLoggedIn.js
module.exports = async function (req, res, proceed) {

  // If `req.me` is set, then we know that this request originated
  // from a logged-in user.  So we can safely proceed to the next policy--
  // or, if this is the last policy, the relevant action.
  // > For more about where `req.me` comes from, check out this app's
  // > custom hook (`api/hooks/custom/index.js`).
  if (req.me) {
    return proceed();
  }

  //--•
  // Otherwise, this request did not come from a logged-in user.
  return res.forbidden();

};

Sails JS sample helper file

sample helper file
-------------------
// api/helpers/format-welcome-message.js
module.exports = {

  friendlyName: 'Format welcome message',


  description: 'Return a personalized greeting based on the provided name.',


  inputs: {

    name: {
      type: 'string',
      example: 'Ami',
      description: 'The name of the person to greet.',
      required: true
    }

  },


  fn: async function (inputs, exits) {
    var result = `Hello, ${inputs.name}!`;
    return exits.success(result);
  }

};