Install Medusa Backend
This document will guide you through setting up your Medusa backend in a three steps.
Prerequisites
Before you can install and use Medusa, you need the following tools installed on your machine:
Create a Medusa Backend
It is recommended to use Yarn for the installation process as it's much faster than using NPM.
1. Install Medusa CLI
To install the Medusa backend, you need Medusa's CLI tool. You can install it globally or, alternatively, use it through npx with npx @medusajs/medusa-cli <command>
.
If you run into any errors while installing the CLI tool, check out the troubleshooting guide.
2. Create a new Medusa project
You'll then be asked to specify your PostgreSQL database credentials. You can choose "Continue" to use the default credentials shown in the terminal, choose "Change credentials" to specify your PostgreSQL credentails, or choose "Skip database setup" to create the database later.
If you choose "Skip database setup" you will need to set the database configurations and run migrations later.
3. Start your Medusa backend
Make sure your PostgreSQL server is running before you run the Medusa backend.
After these three steps and in only a couple of minutes, you now have a complete commerce engine running locally. You can test it out by sending a request using a tool like Postman or through the command line:
Troubleshooting Installation
Error: SASL: SCRAM-SERVER-FIRST-MESSAGE: Client password must be a string
Can't Connect to PostgreSQL Docker Container
Error: connect ECONNREFUSED ::1:5432
Error: EADDRINUSE
AwilixResolutionError: Could Not Resolve X
Seed Data
For better testing, you can add demo data to your Medusa backend by running the seed command in your Medusa backend directory:
Health Route
You can access /health
to get health status of your backend.
Next Steps
Learn about the purpose of each file and directory in the Medusa backend.
Learn about configuring your backend and loading environment variables.
Learn about the different resources that your Medusa backend is made of.