Medusa is a toolkit for developers to create digital commerce applications. In its simplest form, Medusa is a Node.js backend with the core API, plugins, and modules installed through npm.
create-medusa-app is a command that facilitates creating a Medusa ecosystem. It installs the Medusa backend and admin dashboard, along with the necessary configurations to run the backend.
Before you can install and use Medusa, you need the following tools installed on your machine:
- Node.js v16+
- PostgreSQL. The PostgreSQL server should also be running during your installation process.
Step 1: Run create-medusa-app
In your terminal, run the following command:
Example: Connect to a Vercel PostgreSQL Database
Example: Connect to a Supabase Database
Step 2: Specify Project Name
You’ll first be asked to enter the name of your project, which is used to create the directory holding your Medusa backend. You can use the default
my-medusa-store or enter another project name.
Step 3: Enter an admin email
You'll then be prompted to enter an admin email for your admin user. You'll be using this admin email later to login to your admin dashboard. You can use the default
firstname.lastname@example.org or enter any other email.
(Optional) Step 4: Install Next.js Starter Storefront
If you didn't pass the
--with-nextjs-starter option, you'll be asked if you want to install the Next.js starter storefront along with the Medusa backend. This will install the storefront under the
<PROJECT_NAME>-storefront directory, where
<PROJECT_NAME> is the name of the project you specified in step 2.
If you want to install the storefront, type
y and press enter. If not, you can use the default value
N and just press enter.
You can always install the storefront at a later point. Medusa is a headless backend, so it operates without a storefront by default. You can connect any storefront to it. The Next.js Starter storefront is a good option to use, but you can also build your own storefront later on.
(Optional) Step 5: Specify PostgreSQL credentials
This doesn't apply if you supplied the
--db-url option. In that case, the command will fail if it can't connect to the supplied connection URL.
By default, this command will try to use the default PostgreSQL credentials to connect to your PostgreSQL server. If they don't work, you'll be prompted to enter your PostgreSQL database and password. If they work, you can move ahead to the next step.
These credentials will be used to create a database during this setup and configure your Medusa backend to connect to that database.
After following the above steps, the project setup will start which includes:
- Creating the project directory. The directory name will be the project name you entered in step 1.
- Creating the project database if
--skip-dboptions are not passed.
- Installing dependencies in your project directory.
- Building project
- Running migrations to migrate the Medusa schema into your project database unless
- Creating the admin user unless
- Seeding the database with demo data unless
Step 6: Log into admin dashboard
Once the project is prepared, the Medusa backend will start and the admin dashboard will be opened in your default browser. You'll then be asked to enter a password for the admin email you entered earlier, as well as other account information.
Once you're logged in, you can start using Medusa! Try following the setup guide to create your first product and order.
Next Steps: Start your Development
Based on what you're building, you can find a development path for you in the Recipes page.
Find learning paths based on what you're building
Learn all the basics of developing with the Medusa backend.
Learn about the available commerce modules and features in the Medusa backend.