I have created a form as a plugin that searches for a user from a user field that I have defined independently. I used Web API to store user information in an external DB (AWS DynamoDB) and extract data from it for searching. class DiscourseUserSearchController < ApplicationController def index end def search dynamodb = Aws::DynamoDB::Client.new( access_key_id: ENV['ACCESS_KEY_ID'], secret_access_key: ENV['SECRET_ACCESS_KEY'], region: AWS_REGION ) scan_condition = { table_name: "DiscourseUserInformation" } result = dynamodb.scan(scan_condition) result = result.items Rails.logger.info result data = result.map do |user_data| user = User.find(user_data['UserID']) user_data['avatar_template'] = user.avatar_template user_data['username'] = user.username next user_data end render status: 200, json: { status: 200, data: data } end end The above code gets all users when the page is opened and passes them to angular. This works fine, but the response takes 3500 milliseconds, which is not very desirable. (about 1400 search users). I think the problem is that I am doing User.find(user_data[‘UserID’]) in a loop, but I can’t think of a way to make it better. I would like to display user cards, so I think it is necessary to acquire users on Ruby, but I would be happy to get suggestions on how to make it faster.

User.find_by_sql("select * from users where id in (#{user_ids.join(',')})")

Thanks. It looks like it will be resolved.

[image] Jay Pfaffman: So that was enough? You might also also do something like user_ids=user_data.pluck(:UserID) Thank you! I wasn’t familiar with Ruby so I accomplished that with dirty code, but I’ll try to improve it the way you’re presenting it!

Consultation on how to obtain user information

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pfaffman (Jay Pfaffman) October 20, 2022, 2:14pm 4

So that was enough? You might also also do something like

user_ids=user_data.pluck(:UserID)

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Consultation on how to obtain user information

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