api-pagination | Link header pagination for Rails and Grape APIs | REST library
kandi X-RAY | api-pagination Summary
kandi X-RAY | api-pagination Summary
:page_facing_up: Link header pagination for Rails and Grape APIs.
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Top functions reviewed by kandi - BETA
- Set up the pagination
- Creates a collection for pagination links .
- Returns a pagination .
- Set pagination
- setup hooks
- Whether to see if the pagination is set .
- Returns the total number of pagination links for the given collection .
- Set the pagination object .
- Determine response based on response format
- Runs the given method .
api-pagination Key Features
api-pagination Examples and Code Snippets
Community Discussions
Trending Discussions on api-pagination
QUESTION
I have a simple REST api which is a books store created with FastAPI and mongo db as the backend (I have used Motor
as the library instead of Pymongo
). I have a GET
endpoint to get all the books in the database which also supports query strings (For example : A user can search for books with a single author or with a genre type etc).
Below are the corresponding codes for this endpoint :
routers.py
ANSWER
Answered 2021-May-17 at 16:45There is no right or wrong answer to such a question. A lot depends on the technology stack that you use, as well as the context that you have, considering also the future directions of both the software you wrote as well as the software you use (mongo).
Answering your questions:
It depends on the load you have to manage and the dev stack you use. Usually it is done at database level, since retrieving the first 110 and dropping the first 100 is quite dumb and resource consuming (the database will do it for you).
To me is seems pretty simple on how to do it via
fastapi
: just add to yourget
function the parameterslimit: int = 10
andskip: int = 0
and use them in the filtering function of your database.Fastapi
will check the data types for you, while you could check that limit is not negative or above, say, 100.It says that there is no silver bullet and that since
skip
function of mongo does not perform well. Thus he believes that the second option is better, just for performances. If you have billions and billions of documents (e.g. amazon), well, it may be the case to use something different, though by the time your website has grown that much, I guess you'll have the money to pay an entire team of experts to sort things out and possibly develop your own database.
Concluding, the limit
and skip
approach is the most common one. It is usually done at the database level, in order to reduce the amount of work of the application and bandwidth.
Mongo is not very efficient in skipping and limiting results. If your database has, say a million of documents, then I don't think you'll even notice. You could even use a relational database for such a workload. You can always benchmark the options you have and choose the most appropriate one.
I don't know much about mongo, but I know that generally, indexes can help limiting and skipping records (docs in this case), but I'm not sure if it's the case for mongo as well.
QUESTION
I am currently paginating the return of a query attendees that has over 9000 items. My pages and routing work fine but I would like them to appear at the bottom of the page as clickable links to that page of the results. I am relatively new at using JBuilder I am using the Kaminari gem as well as the API-Pagination gem and would like to know how to I add visible/clickable page numbers to a JBuilder view according to Kaminari Docs <%= paginate @attendees %>
is all that is needed. But as far as I understand JBuilder does not work or interpret that logic as its purely manufacturing JSON objects? Any advice is appreciated as well as a better explanation of what JBuilder is doing.
ANSWER
Answered 2020-Nov-13 at 17:48Kaminari works great of the box for HTML partials, but there are some additional things you need to do to set it up for other response formats. You can remove the paginate json: @attendees, per_page: 500
line from your controller in favor of something like
QUESTION
AFAIK, the Pageable class supports only LIMIT/OFFSET based paging. However, while being a quite universal solution, it comes with some downsides as outlined here https://momjian.us/main/blogs/pgblog/2020.html#August_10_2020
Keyset Pagination (aka Seek Method or Cursor-based Pagination) has some benefits in terms of performance and behavior during concurrent data inserts and deletes. For details see
- https://use-the-index-luke.com/no-offset
- http://allyouneedisbackend.com/blog/2017/09/24/the-sql-i-love-part-1-scanning-large-table/
- https://slack.engineering/evolving-api-pagination-at-slack-1c1f644f8e12
- https://momjian.us/main/blogs/pgblog/2020.html#August_17_2020
So, are there any plans to support this pagination method, e.g. via Pageable
and getKey()
that then gets incorporated into the SQLs WHERE clause?
ANSWER
Answered 2020-Sep-14 at 12:20This possibility was discussed in the team and while not considered urgent it is something we would like to offer eventually.
The first step would be to provide support for this in Spring Data Commons, i.e. a persistence store independent API. The issue for this is DATACMNS-1729
QUESTION
Using the Instagram Basic Display API
, how can I limit the number of posts that it fetches to less than 20?
Inside a class in PHP
, I defined the following base URL
for the endpoints:
ANSWER
Answered 2020-Mar-27 at 14:40Add an entry for the limit
parameter to the url_params
arrays:
QUESTION
I'm investigating using cursor-based pagination. I have the following (postgres) table:
...ANSWER
Answered 2020-Feb-20 at 19:57Yes, you can implement keyset pagination with a composite key. But JPA is not ideal tool for that - you'll have to construct your predicates yourself.
Details:
Let's modify an example from a framework that natively supports keyset pagination: https://www.jooq.org/doc/latest/manual/sql-building/sql-statements/select-statement/seek-clause/
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On a UNIX-like operating system, using your system’s package manager is easiest. However, the packaged Ruby version may not be the newest one. There is also an installer for Windows. Managers help you to switch between multiple Ruby versions on your system. Installers can be used to install a specific or multiple Ruby versions. Please refer ruby-lang.org for more information.
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