August 2025
Intermediate to advanced
372 pages
8h 31m
English
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Chapter 6. Library API
This chapter covers the following:
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Constructing an API with Fastify.js
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Building REST endpoints
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Connecting to a relational database
Although most people are familiar with the internet by way of their web browser, most activity and data transfer happens behind the scenes. Some data, like real-time train schedules, is made available not as just a standalone web app, but as a resource others can use and implement into their own apps. This resource is called an Application Programming Interface (API), and it allows its users to view all or some available data belonging to a restricted environment (like the railroad authority). Some APIs allow the addition, modification, and deletion of data, especially if it’s your own data or if you are the authority over that resource itself.
In this chapter, you’ll build a RESTful API, meaning it will support access and modification of data through a standard protocol. You’ll also connect the API to a database—to which you can add new information and from which you can access older records. In the end, you’ll have the translatable skills needed to build an API for just about any type of data.
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.