Tutorials & Guides
A collection of 16 posts
Cotter + Cloudflare Workers + Google Calendar API: Build a Calendly Clone using Google OAuth
Build a serverless Calendar Booking App using Cotter, Cloudflare Workers, and Google Calendar API.
The Simplest Way to Authorize Github OAuth Apps with Next.js and Cotter
Add "Sign in with Github" in one click to authorize your Github OAuth App and access Github REST API using Cotter and Next.js.
How to Make an Interactive Todo List CLI using Python with an Easy Login Mechanism
Build your own Todo List CLI with Python using packages like Click, PyInquirer, and Cotter in minutes!
OAuth 2.0 - Before You Start: Pick the Right Flow for Your Website, SPA, Mobile App, TV App, and CLI
OAuth 2.0 has at least 4 different flows for different use cases. Find out which flow you should use to secure your app.
What is WebAuthn: Logging in with Face ID and Touch ID on the web
Enable TouchID and Windows Hello authentication to your website. Introducing WebAuthn: how it works and how to implement it.
LocalStorage vs. Cookies: All You Need to Know About Storing JWT Tokens Securely in the Front-End
JWT Tokens are awesome but how do you store them securely in your front end? We'll go over the pros and cons of localStorage and Cookies.
What on Earth Is OAuth? A Super Simple Intro to OAuth 2.0, Access Tokens, and How to Implement It in Your Site
Get a quick intro on what OAuth 2.0 is and how signing in with OAuth 2.0 works – explained in simple terms using Google Sign In as an example.
Stop spending days to code your login page! Add Cotter's magic link to your Gatsby app under 5 minutes
Supercharge your Gatsby app's authentication system with Cotter's magic link. Like how Slack does it, but simpler.
Flutter Email & Phone Auth: 3 Simple Steps To Log Your Users In via Email, SMS, and WhatsApp using Cotter
In this tutorial, we'll build a flutter app that allows users to sign up and sign in with their email or phone number instead of using passwords.
Fast Passwordless Auth in Flutter: Add a One-line Sign Up and Login with Device using Cotter
In this tutorial, we'll create a Flutter app from scratch that allows users to sign in with their device.
Passwordless Login with Email and JSON Web Token (JWT) Authentication using Next.js
How do you log your users in and how do you give them access? We'll go over how to authenticate and authorize users without passwords in Next.js.
Angular: Send Email, SMS, and WhatsApp Verification Code to New Users Worldwide
In this tutorial, we'll create a new Angular website and add a simple email and phone number verification. To verify the user's phone number, we'll give the options to send the code via SMS or WhatsApp.
Say Goodbye To Passwords: The Easy Way to Add Sign In With Device to Your React Native App in 5 Minutes
We'll go over how to build a React Native app and allow users to "Sign in with device".
A collection of 3 posts
Restrict Your Bubble Site Login to "Allowed" Emails Only using Google Sheets
Only allow certain emails to log in to your Bubble site! Use cases include RSVP, waitlists, student lists, and more.
A collection of 5 posts