Rails 6 API Tutorial - API Pagination p.15

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In this video series we will build a Rails API from scratch. Backend APIs are useful for serving data to frontend applications, mobile apps or other backend services.

This video covers:
00:00 - What is pagination and why do we need it
00:50 - Writing a test to describe how we want pagination to work
02:35 - Adding limit and offset to our ActiveRecord Books query
03:58 - Adding a test for offset
05:41 - Adding a maximum limit of 100 to prevent users requesting too many records
06:18 - Writing a test to verify that users cannot request too many records
07:54 - Adding an RSpec 'expect to receive' model expectation
09:46 - Implementing max limit logic using Ruby's min method
13:10 - Tidy up the limit method using a named constant
14:16 - Move the max limit test into a controller spec

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Dude, your tutorial without a doubt beats up most of the paid tutorials out there

aymanhassan

Best series I have loved! Its just polishing me up. Thank you Tom.

nakittocatherine

This is the best API series, I've learned so much!! Thanks Tom!

artofthesystem

Thanks man, this series helped me a lot ❤

ahmedmustafa

I am so grateful for this video, thank you! Please make a course for RSpec in depth 🙏

michiharuono

I totally forgot pagination was so easy to do without a gem in Rails. I think if I had a view I'd still reach for kaminari for sanity, but this is neato!

MikeRogers

Another excellent video. But I can not make the limit test work. Although my API returns the MAX_PAGINATION_VALUE of posts the test gives an error. Is there any other way to test if the max limit is returned? Thanks

nickharalampopoulos

Hi @tom,

I have a very weird thing on when I am following your tutorial.

As per your last comment on a previous video, I noticed that use _transactional_fixtures is set to true by default in the rails_helper file in the spec folder.

Diff:
@@ -1, 5 +1, 5 @@
"author_age" => 48,
"author_name" => "Andy Weir",
-"id" => 1,
+"id" => 58,
"title" => "The martian",

If you noticed the book_id that's coming out is 58, whereas it should be 1. Would be great if you think you can help out. :)

nikgoy

Hi..this series is really helpful.but i am getting error with response_body

ishitaghosh

I have a question, how do i paginate with filtering, for example, i want to paginate all my results that are the newest or the ones with the most votes.

ripndipp

this doesn't seem to work (the pagination test over 100 limit) on rails 7, any reason why?

ctrlaltcal

Rails 6 API Tutorial - API Pagination p.15

Rails 6 API Tutorial - Create project and routing p.1

Rails 6 API Tutorial - HTTP Status Codes p.4

Rails 6 API Tutorial - Creating Multiple Records in Controllers p.13

Rails 6 API Tutorial - Finding the user and adding their ID to the JWT payload p.21

Rails 6 API Tutorial - Basic controllers and models p.2

Rails 6 API Tutorial - Namespacing and versioning p.8

Rails 6 API Tutorial - Building a POST Endpoint p.3

Rails 6 API Tutorial - Authentication with JWT Intro p.18

Rails 6 API Tutorial - Destroy Controller Action p.6

Rails 6 API Tutorial - API Response Body Specs & Using Spec Helpers p.14

Rails 6 API Tutorial - Exception handling in controllers p.7

Rails 6 API Tutorial - Securing API Endpoints with the Authentication Bearer Header p.23

Rails 6 API Tutorial - Testing Active Job with RSpec p.17

Rails 6 API Tutorial - API Tests with RSpec p.9

Rails 6 API Tutorial - Model Associations p.11

Rails 6 API Tutorial - Active Job For Time Intensive Operations p.16

Rails 6 API Tutorial - JWT Authentication Service p.20

Rails 6 API Tutorial - Fixing authentication specs and improving the codebase p.24

Rails 6 API Tutorial - Building an Authentication Endpoint p.19

Learn Ruby on Rails - Full Course

Rails 6 API Tutorial - RSpec API Tests POST/DELETE p.10

Rails 6 API Tutorial - API Pagination p.15

Rails 6 API Tutorial - Using has_secure_password for Authentication p.22

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