![]() In case you don’t know what Postman is or you are entirely new to Postman, I will recommend you check out the Postman getting started documentation page and then come back to this article to learn how to automate testing your API with Postman.ĪPIs or Web APIs pretty much drive most of the user-facing digital products. So if you are like me and you use Postman and you are tired of manually testing your APIs, this article will show how to harness the test automation feature provided by Postman. One of my favorite features in Postman is the ability to write automated tests for my APIs. In order to follow along to this tutorial, you’ll need at least a fair amount of familiarity with Postman. Once the branch has been promoted to production, head back to src/user/ this article, we will learn how to write automated tests on web APIs with Postman. In the modal that pops up, click Promote branch and wait for the process to complete. To promote your main branch to production, go to your database dashboard, and click Promote a branch to production. This ensures that your database is always available. Queued requests are handled in a non-blocking manner, which means that there is no downtime while the migrations are executed. Additionally, the deploy request can be reviewed by the team, approved, and then queued. It is able to detect dangerous schema alterations, as well as missing unique keys, and warn you accordingly. PlanetScale compares the production version of your database schema with the version from the deploy request. To update a production branch, a deploy request has to be created. The main branch can be promoted to production, where it will receive an additional replica and be protected from direct schema changes. To protect you from this, PlanetScale provides a branching workflow. Also, as the team grows, it may become more difficult to manage change if developers across the team are not aware of recent database changes. There is the risk of data loss as a result of human error in the event that a column or table is accidentally dropped. However, once customers start making use of your application and interacting with your database, this approach exposes you to several risks. ![]() In the early stages of product development, having the main branch and making changes directly to the database schema is fine, as the application is not serving any external clients. To do this, you can make API requests using Postman or any API testing platform, as shown below: Deploy development database branch to production # Next, you can test your API to see that it functions as expected. Once this is done, head back to your PlanetScale dashboard and view the updated table schema by running the DESCRIBE user command again.Īs you can see, three new columns have been added for the user’s profession, country, and state. Once a file change is detected, Nest.js will start an incremental compilation and re-serve the application. You can always generate a new set of credentials if you do forget to store Column () profession : string Column () country : string Column () state : string īecause Nest.js is watching the files, there is no need to stop the application before making any changes. Copy the full set of credentials and store them somewhere, as you won’t be able to see them again when you leave the page.While you can use either of these options, this guide covers connecting with username and password.īack in your PlanetScale dashboard, click on the " Branches" tab of your database, and select main. You can connect your application to the PlanetScale database in one of two ways: Then, whenever you need to make schema changes, you'll make a new dev branch off of production. If you ever deploy the Nest.js application you're working on, you can promote this database branch to production. PlanetScale utilizes a git-like database branching workflow to make safe schema changes.įor this tutorial, you'll work in the main branch, which is created by default. Click Create to set up your database or New database → Create new database if you have other databases. The image above depicts what your dashboard will look like if you haven’t created any databases. Creating the MySQL databaseĪfter successfully setting up an account, you can now create the database for your application. Sign up for a free PlanetScale account if you haven’t done that already. - A configuration module for Nest.js application to load environment variables.typeorm - A TypeScript ORM (Object relational mapper) library for connecting an application to a relational database. ![]() mysql2 - A MySQL database driver module for Nodejs applications.Some of the existing dependencies in the project required for successful database connection and integration include: ![]() Terminal # Change directory cd nest-user-api # Install dependencies npm install
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