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API Configuration

Launchtoday comes with a backend service that your mobile app will make API requests to. The service provides secure endpoints for payment processing through Stripe, with planned expansion for push notifications and other features.

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Prerequisites

Before getting started, you should be familiar with:
  • TypeScript: The backend services are written in TypeScript
  • Koa: Used as the web framework for building backend services
  • Docker: Required for containerizing the application
  • fly.io: Used for deploying and hosting the backend services

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Repository Setup

First, clone the repository and install dependencies: 
# Clone the repository
git clone https://github.com/launchtodayhq/launchtoday-backend your-app

# Navigate to project directory
cd your-app

# Set the node version specified in the .nvmrc file
nvm use

# Install dependencies
yarn install
The project contains a .nvmrc file which specifies Node.js version 18.18.2. You can either: - Use this version by running nvm use to automatically switch to 18.18.2 - Or modify the .nvmrc file to use your preferred Node.js version (must be ≥18.18.2)
Make sure you also have Yarn installed on your system before running these commands.

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Environment Setup

Copy the example environment file to create your .env using the following command: 
cp .env.example .env
Your .env file should look like this: 
PORT=3000
HOST=0.0.0.0

# Stripe
STRIPE_SECRET_KEY=your_stripe_secret_key

# Supabase
SUPABASE_PROJECT_URL=your_supabase_project_url
SUPABASE_API_KEY=your_supabase_api_key
Don’t worry about the Stripe and Supabase keys for now, we’ll get to them later in the Stripe Setup and Supabase Setup sections.

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Running the API Service

Once you have the repository setup and the environment variables set up, you can start the API service using the following command: 
yarn dev
Your terminal should output something like this: 
➜  yarn dev
yarn run v1.22.19
$ nodemon
[nodemon] 3.1.7
[nodemon] to restart at any time, enter `rs`
[nodemon] watching path(s): src/**/*
[nodemon] watching extensions: ts,js
[nodemon] starting `ts-node ./src/server.ts`

2024-11-11T08:20:40.482Z INFO  Server running on http://0.0.0.0:3000 ✨
  port: 3000
  host: 0.0.0.0
You can verify that the API service is running by navigating to http://0.0.0.0:3000/hello in your web browser. You should see a JSON response like this: 
{
  "message": "Hello, world!"
}
You can also run the following curl command to verify that the API service is running: 
curl http://0.0.0.0:3000/hello

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Deploying the API Service

As previously mentioned, the API service is deployed to fly.io. There are several other alternatives to fly.io, but for now we’ll focus on deploying with fly.io. Ensure you have a fly.io account and are logged in before proceeding. You can run the following command to deploy the API service:
  1. Run fly auth signup if you don’t have an account
  2. Run fly auth login to login to your fly.io account
  3. Run fly launch to launch the API service
After making API changes, you can deploy the changes by running fly deploy.