SaaS Kit for Node.js & React

218 Startups & Developers Trust Gravity

"Gravity provided me with the foundation needed to jumpstart my new SaaS product. Kyle’s attention to detail, thoughtful approach, and creative inclination provided the most ideal outsourcing outcome. In my capacity as a UX Lead I’ve worked with countless engineers—of which Kyle stands ahead of the pack. I hope to continue working with Kyle and leveraging Gravity long into the future." Brad Bitler - Designer at Apple & Rafters Founder
"Everything worked perfectly. I was pleasantly surprised by how user-friendly the whole setup process was – loved the unexpected setup wizard. I also appreciate the clean code and comments; as a Rails developer transitioning to Node.js that’s really helpful. Great product, exactly what we needed and it over-delivered at that price-point." Martin Martinel - Martinel Marketing

Features

If it takes you 4+ weeks to write all 10,000 lines of code. At $75 per hour that's a whopping $12,000.
You save $11503

Subscription Payments

Monetise your application right now with a powerful billing system that uses Stripe.

React UI

Create beautiful user interfaces using a full suite of React components.

Users & Authentication

Teams

Empower your users to work with their team mates with a seamless invitation system.

Email Notifications

Send beautiful, pre-made email notifications to your customers for free with Mailgun.

Master Dashboard & Metrics

Manage your users from your master dashboard – complete with metrics.

Easy Form Validation

Validate and send forms with a single function call that does all the hard work for you.

GDPR-Compliant Legals

Avoid expensive lawyers with boilerplate T&Cs and privacy policy pages.

REST API

Lightening fast REST API with token authentication built with Express.js and MySQL

Security & Permissions

Manage permissions and restrict access to certain pages or features for each user group.

Landing Page

Launch your app with a beautiful, hand-crafted homepage and pricing page just like this one.

New Features

Get access to all new features and updates, for one year, for free.

Read the Full Spec

How it Works

Download the codebase and run the setup wizard – in less than two minutes, you’ll have a fully-functioning web application.

Examples

/*
* account.create()
* create a new account and stripe customer
* process the payment and create a new recurring monthly subscription
*/

exports.create = async function(req, res){

  const signup = req.body;
  let stripeData = {};

  // check if the account already exists
  const exists = await account.get(null, signup.email);

  if (exists)
    throw ({ inputError: "email", message: "You're already registered" });

  // create a stripe customer and subscribe them to a plan
  stripeData.customer = await stripe.customer.create(signup.email, signup.source);
  stripeData.subscription = await stripe.customer.subscribe(stripeData.customer.id, signup.plan);

  // create the account and user
  const accountId = await account.create(signup, stripeData);
  const userId = await user.create(signup.name, signup.email, signup.password, accountId, "owner");

  // send welcome email
  mail.send(signup.email, "Welcome to Gravity!", "welcome-account", {
    name: signup.name, plan: signup.plan, price: stripeData.subscription.price
  });

  // autheticate user
  authController.signin(req, res);

};

/*
* verify the api token
*/

exports.verify = function(permission){

  return async function(req, res, next){

    try {

      const token = req.headers['authorization'];
      if (!token) throw new Error();

       // decode the json token
      let bearer = token.split(" ");
      const decode = jwt.verify(bearer[1], settings.token.secret);

      // verify user
      if (decode.accountId && decode.userId && decode.permission){

        // now verify the permission
        const userPermissions = getPermission(req);

        if (userPermissions[permission]){

          req.account = decode.accountId;
          req.user = decode.userId;
          next();

        }
        else
          throw new Error();

      }
      else
        throw new Error();

    }
    catch (err){

      res.status(401).send({ message: "You do not have permission to perform this action. Please try logging in again" });

    }
  }
}

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Why Use Gravity?

As a founder and startup mentor, I've watched an endless number of businesses blowing huge budgets and wasting weeks of time creating standard features like login forms and billing.

I created Gravity to help developers and businesses to slash development costs and build products faster, empowering them to focus on building features that truly matter – the ones that generate revenue.

For a small fee, you'll have a market-ready web application that will save you weeks of time and thousands of dollars in in software development.

Save weeks of time and build your React & Node.js SaaS app in minutes