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Christopher Ribeiro for Alertpix

Posted on • Edited on

Ditch REST, go intent based

At Alertpix we allow streamers to receive donations from their audience via Pix Instant Payment and show an alert on the live stream.

Our API exclusively utilizes the GET and POST HTTP methods. We think that we can use native features as much as we can. We bring this inspiration from the <form> element which does not support form submissions PUT, PATCH, or DELETE methods.

In this article, we explore the reasons why your API might not require more than two request methods: GET and POST.

REST APIs

APIs are designed for machines to communicate with each other, and there are various standards when using HTTP. The most commonly used standard is REST, which provides a great pattern for constructing APIs. If we adhere to it, we end up with a RESTful API.

However, adhering to REST often compels us to write object-oriented code and use a variety of HTTP methods. While this isn't inherently problematic, one significant drawback is that we need to structure each route for each entity in the same way:

POST /book
GET /book/:id
DELETE /book/:id
PUT /book/:id
PATCH /book/:id
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If we want to add another domain we certainly will use the same route structure for it:

POST /author
GET /author/:id
DELETE /author/:id
PUT /author/:id
PATCH /author/:id
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What if we need to get a book by an author? How should we do it?

GET /books/:id/author/:id
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Or

GET /author/:id/books/:id
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In all honesty, it's not a matter of whether it's readable or understandable; it's about the need for such complexity in the first place.

APIs are for humans

While APIs are intended for machines to consume, they are designed and utilized by humans. Human developers read the documentation and test the integration, so there's no need for excessive complexity in HTTP endpoints. Instead, we can focus on making the API more intent-based.

Going Intent-Based

Now that we understand that most of the time the integration will be done by humans. We can make it as swift as possible.

The previous example to get a book by an author can be done this way:

GET /books/by-author/:id
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If you literally remove the special characters, you can read it just like an English sentence:

GET books by author id
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This shift towards an intent-based approach can make API usage more intuitive and user-friendly.

Going beyond

If we want to create, edit or delete an entity, we can easily have different endpoints for that just like this:

POST /books/create {...}
POST /books/edit/:id {...}
POST /books/delete/:id
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If we where in REST, editing and deleting whould be a mess. And we all know that, we often forget the difference between PATCH and PUT.

By going intent based we make our APIs more human readable.
This pattern is presented in our APIs and micro services so integration is always a breeze.


Alertpix

Top comments (6)

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auroratide profile image
Timothy Foster

The typical approach for your example is to use query parameters.

GET /books?author=:id
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This allows us to query by multiple things if necessary.

GET /books?author=:id&genre=mystery
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If you use the path for that, you run into the same which-way-around issue we were trying to avoid.

GET /books/by-author/:id/by-genre/mystery
...or...
GET /books/by-genre/mystery/by-author/:id
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slobodan4nista profile image
Slobi

Classic Rest is pretty common wel built and well adopted.
This is just adding to confusion by doing things in a unique way. Rearly a good idea doing any API not just web.
Respect for trying to move things in some direction, but this seems not to be it.
If this is just a contraversial post for attention, good job, got me 👍

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610470416 profile image
NotFound404

you may need to know the difference between rest apis and vig apis.
where rest apis are for resources and vig apis are for logics.
And with the backend js web framework aex you can combine them together into one class.
github.com/calidion/aex/blob/maste...

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webjose profile image
José Pablo Ramírez Vargas

I feel compelled to pile up on the negative to accept this acceptable. I'll start by saying that user interfaces are for humans, while API's are for machines: The uer interface is run by a machine, and this machine uses the API to communicate with the back-end. See? Machine to machine. The human uses the UI.

Timothy Foster is right: When you are querying, usually you query with the query string part of the URL. The added path segments are done for a different purpose. Examples:

Get all books from an author: /authors/:authorId/books

These are by no means mandatory, as this can be expressed as /books?authorId=:authorId. I personally provide the former as I believe is quite expressive and unambiguous.

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ranjancse profile image
Ranjan Dailata • Edited

Sorry, one of the deadliest misconceptions of Restful Services is to think in terms of HTTP. But that's not the right thing. Understanding the basics of resources, sub-resources, etc. is the key thing for the success. Hence, I would highly recommend everyone to invest on the basics, understand the intent and motivation behind the creation of the most patterns and best practices.

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m3rashid profile image
MD Rashid Hussain

Totally OK for RPC style APIs. If you don't provide your APIs for others to use, it's ok. REST is more of a standard (well known/good practice) rather than a principle