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An introduction to APIs


If technical colleagues mention APIs in meetings and you don’t know what they’re referring to or you just need a refresher on the detail, here’s a helpful recently-published introduction by Tam Nguyen on The Conversation. Tam, who is an Associate Professor at the University of Dayton describes APIs (application programming interfaces) as “the gateways to the digital world. They link a wide array of software applications and systems. APIs facilitate communication between different software systems”.

APIs are like electrical sockets; one software application you are using is like an appliance. You use an API to plug that application into a grid of enabling and complementary programmes that combine to enable a solution or service. Elsewhere, things get more complicated – an API can also be used to convey information between, say, a customer and a service provider to improve the user experience.

Tam Nguyễn

APIs are important because they power applications and services across many diverse industries and allow them to seamlessly interactto give users a good experience. They rely on defined rules and protocols that ensure accurate data exchange and effective collaboration. There are APIs for specific uses and software developer preferences.

As APIs continue to shape the digital landscape, developers face challenges. Ensuring the security and privacy of data exchanged through APIs is paramount, given their integration into critical systems. As APIs evolve, managing their complex ecosystems and making sure old programs can use new APIs will be a considerable task.