How do we design effective and safe APIs?

 

 

How do we design effective and safe APIs?

To understand some of the key principles of API design, let's analyze a social media platform example:

• 𝗥𝗲𝘀𝗼𝘂𝗿𝗰𝗲 𝗻𝗮𝗺𝗶𝗻𝗴

↳ Clarity is key when creating APIs. Adopting simple resource names, like /users for accessing user profiles and /posts for retrieving user posts, streamlines the development process and reduces mental strain.

• 𝗨𝘀𝗲 𝗼𝗳 𝗽𝗹𝘂𝗿𝗮𝗹𝘀

↳ It's important to maintain a standard of consistency in API design. For consistency and readability, use plural resource names, such as GET /users/{userId}/friends vs. /friend), to avoid ambiguity in API requests.

• 𝗖𝗿𝗼𝘀𝘀-𝗿𝗲𝗳𝗲𝗿𝗲𝗻𝗰𝗶𝗻𝗴 𝗿𝗲𝘀𝗼𝘂𝗿𝗰𝗲𝘀

↳ Interlinking resources, like taking comments on a post using GET /posts/{postId}/comments, simplifies the retrieval of related data. It provides a more streamlined and well-organized user experience.

• 𝗜𝗱𝗲𝗺𝗽𝗼𝘁𝗲𝗻𝗰𝘆

↳ Maintaining API reliability is crucial. Idempotency ensures that operations like profile updates (PUT /users/{userId}/profile) produce the same result no matter how many times it’s executed.

Source: Nikki Siapno