12/19/2023 0 Comments Ilike mysqlLuckily, there is a package to generate Sequelize database files based on an existing database. But when you are migrating a bigger database, you might want something more automated. For this tutorial, creating the models by hand would not be a problem because we have just four small tables in our database. Now we can do one of two things: we can either create the database models by hand or auto-generate them with an extra package. Let’s start by adding the packages (the mysql2 package is necessary to connect to the MySQL database) with either npm: npm install sequelize mysql2 To interact with our MySQL database, we’re using Sequelize as the ORM (Object-Relational Mapping) package. Virtually every framework uses models to interact with a database. It will serve as an endpoint on Let’s start building our GraphQL API! Creating the database models in MySQL After cloning the project, you need to run npm install to install the dependencies.įinished installing? You can run npm run start to start the app. It serves as a basic Express Hello World app. Bootstrapping the applicationįor this tutorial, webpack is set up to compile the app.js file inside the dist directory. You can find the SQL file inside the repository in the directory tutorial_assets. Status | Field | Type | Null | Key | Default | Extra |Ĭreate your own database with the schematics above or import the SQL file into your MySQL database. Click here to see the full demo with network requests | Field | Type | Null | Key | Default | Extra | | id | int(10) unsigned | NO | PRI | NULL | auto_increment | Users | Field | Type | Null | Key | Default | Extra | | assigned_to_user_id | int(11) | YES | | NULL | | | status_id | tinyint(4) | NO | | NULL | | | priority_id | int(11) | NO | | NULL | | | subject | varchar(256) | NO | | NULL | | | id | int(11) unsigned | NO | PRI | NULL | auto_increment | Tickets | Field | Type | Null | Key | Default | Extra | The database has four tables: tickets, priorities, status, and users. You can use the docker-compose.yaml file (inside the repository) to start a MySQL container. I like running my MySQL database inside a Docker container. I’ve created an SQL file that you can import into a MySQL database. If you want to code along, you can check out this repository and clone the start of the tutorial release with this command: git clone -branch start Building the database layerįirst, we’ll assume that we’re working with an existing database. Docker (to spin up a local MySQL database it’s optional as long as you have a MySQL instance)ĭon’t worry if you don’t know every piece I just noted, I will describe every step along the way.Sequelize (Object-Relational Mapping package).Apollo (tools to create GraphQL endpoints).The building blocks we will be using are: We want to create an endpoint where we can read tickets and get their associated data such as user, status, and priority. In this tutorial, we will build a small GraphQL endpoint for a ticketing system. In this tutorial, we will cover how to create models based on your database, create a Node GraphQL API that reads the data from the database, and learn how to make relations in your GraphQL API between different tables. Ready to make the jump to a GraphQL API? If you already have a MySQL database, you have an excellent starting point for creating a scalable API. Creating a scalable GraphQL API with MySQL, Node.js, and ApolloĮditor’s Note: This post was updated in August 2021 with relevant information and updated code. I’m a writer, designer, developer, manager, and everything in between. This is my query: results = await Wolthuis Follow Hi, I’m Dirk. All we need is an easy explanation of the problem, so here it is.
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