Skip to Content
APIs for Modern Commerce
book

APIs for Modern Commerce

by Kelly Goetsch
December 2017
Intermediate to advanced
78 pages
1h 33m
English
O'Reilly Media, Inc.
Content preview from APIs for Modern Commerce

Chapter 3. Implementing APIs

This chapter focuses on actually implementing what’s behind your APIs. You’ve modeled your APIs, but now it’s time to write the code. Here’s how you get started.

Identifying Needs of Clients

Before you start writing code, remember who you’re building APIs for and what they want. Are your APIs primarily for internal developers at your company? Or are they for external developers not employed by your company? Are your APIs for paying customers or for partners?

We’ll discuss this more in Chapter 4, but for now, let’s ask the simple question—who are your clients? Are they other microservices? Are they web frontends? Are they mobile frontends? Your client could be on the other side of the world or on the next rack over in the data center. These are all important considerations. Who’s calling your APIs will have a direct impact on how you design, deploy, and manage them.

Keep these factors in mind as you look at building the code behind your APIs.

Applications Backing APIs

All large applications fall somewhere on a spectrum between monolithic and microservices. A traditional monolithic has multiple business functions in the same codebase. Pricing, orders, inventory, and so on are all included in the same codebase and are deployed as a single large application requiring dozens or hundreds of people working in horizontal (frontend, backend, ops, etc.) teams. These monolithic applications often retroactively add APIs to access functionality contained within ...

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.

Read now

Unlock full access

More than 5,000 organizations count on O’Reilly

AirBnbBlueOriginElectronic ArtsHomeDepotNasdaqRakutenTata Consultancy Services

QuotationMarkO’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.
Head of Cybersecurity
QuotationMarkI 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.
Field Engineer
QuotationMarkI’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.
Data Platform Tech Lead
QuotationMarkI'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.
Mark W.
Embedded Software Engineer

You might also like

GraphQL for Modern Commerce

GraphQL for Modern Commerce

Kelly Goetsch
Crypto Dictionary

Crypto Dictionary

Jean-Philippe Aumasson

Publisher Resources

ISBN: 9781491995266