An API endpoint is a point of connection between two software programs.

APIs have endpoints for each resource.

The endpoints specify the exact location of a resource on the server.

Man holding tablet standing next to a screen showing words that refer to web architecture

When a client software requests information from the server, it goes through the API.

Which then accesses the request and processes a response from the server.

The API then transfers the requested information from the endpoint to the tool.

How  an API works

Your API is efficient if it can communicate effectively via its endpoints.

It makes it easier for users to access resources, improving the user experience.

How Does an API Endpoint Work?

Integrated systems communicate through APIs.

One system sends a request to the API, usinga format like SOAP or REST.

The server receives the requests and transfers the response back to the API.

The location of that requested resource is the endpoint.

Before an endpoint processes a request, the client must provide a URL, headers, and a body.

The headers contain metadata about a request and the body details data sent to the server.

A server can also connect to a database thatAPI methodscan access.

API endpoints typically work with HTTP methods such as GET, DELETE, PATCH, or POST.

The methods determine how to use an endpoint.

You should learn about some best practices you might use to ensure your API endpoints are an asset.

Use a Forward Slash

Always use forward slashes to separate URI resources.

Slashes also help to show resource hierarchy.

The following is an example:

2.

Use Nouns, Not Verbs

You should only use nouns to name a resource.

Nouns describe what a resource is for as opposed to a verb that describes what a resource does.

Here is an example of a good and a bad way to name the API endpoints.

Bad naming:

Good naming:

3.

Use Plural Nouns, Not Singular

You should always name your API endpoints in plural nouns.

This indicates to a user that there is more than one resource on the server.

Using a singular noun may confuse the user into thinking theres only one resource.

Use Lowercase Letters

You should pop in all the URLs in lowercase.

This includes API endpoint URLs.

Here is an example:

5.

Use Hyphens to Separate Words

Use hyphens to separate combined words.

Hyphens result in more readable phrases than camel case or underscores.

They are also better for SEO purposes.

Dont Add File Extensions

You dont need to add a file extension to your API endpoints.

Although it doesn’t affect the output, an extension makes it harder to read the resource.

It also makes the resource less flexible, breaking it if the extension changes in the future.

Include Versioning

You should always name your API endpoints according to the version.

This is important if you are making major changes to the API.

It helps to differentiate between two or more API versions where the resource is coming from.

you’ve got the option to indicate the version at the start of the endpoint.

For example:

Why Consider API Best Practises?

APIs have become the backbone of modern programming.

They improve collaboration, encourage innovation and improve software security.

Whether using new tools or managing existing ones, APIs simplify the process.

So its essential to have endpoints that improve the user experience.

The naming and structure of your API endpoints determine the performance of your API.

double-check you use best practices to create efficient API endpoints.