TILs - Fueling Curiosity, One Insight at a Time

require 'webmock/webmock_api.rb'

config.before(:each) do
    stub_request(:any, /domain_name/).to_rack(WebmockApi
end

# spec/fixtures/member_api_success.json
[
  {
    "id": 1,
    "name": "John Doe",
    "email": "[email protected]",
    "phone": "123-456-7890",
    "membership_type": "Gold",
    "status": "active"
  },
  {
    "id": 2,
    "name": "Jane Smith",
    "email": "[email protected]",
    "phone": "987-654-3210",
    "membership_type": "Silver",
    "status": "inactive"
  }
]

class WebmockApi
  SPEC_FIXTURES_PATH = 'spec/fixtures'.freeze
  MEMBERS_SUCCESS = File.read("#{SPEC_FIXTURES_PATH}/members_api_success.json").freeze
  POSTS_SUCCESS = File.read("#{SPEC_FIXTURES_PATH}/posts_api_success.json").freeze
  ERROR = File.read("#{SPEC_FIXTURES_PATH}/error.json").freeze

  def self.call(env)
    new.call(env)
  end

  def call(env)
    action = env['REQUEST_METHOD']
    path = env['PATH_INFO']
    params = env['QUERY_STRING']

    case path
    when '/external_members_api_path'
      params.include?('test_user') ? [ 200, {}, [ MEMBERS_SUCCESS ] ] : [ 500, {}, [ ERROR ] ]
    when '/external_post_api_path'
      params.include?('new_post') ? [ 200, {}, [ POSTS_SUCCESS ] ] : [ 500, {}, [ ERROR ] ]
    end
  end
end

require 'rails_helper'
require 'webmock/rspec'

RSpec.describe "Members", type: :request do
  describe "GET /members_search_path" do
    context "when the members API call is successful" do
      it "returns member details from the API" do
        get "/external_members_api_path", params: { member: "test_user" }

        expect(response).to have_http_status(:ok)
        user = response.parsed_body["member"]
        expect(["id"]).to eq("123456")
        expect(user["name"]).to eq("abc")
      end
    end
    
    context "when the members API call is successful" do
      it "returns error message from the API" do
        get "/external_members_api_path", params: { member: "unknown_user" }

        expect(response).to have_http_status(:ok)
        expect(response).to have_http_status(:internal_server_error)
        error = response.parsed_body["error"]
        expect(error).to eq("Something went wrong")
      end
    end
  end
end

import { WebClient } from "@slack/web-api";

const client = new WebClient("YOUR_SLACK_BOT_TOKEN");

async function sendThreadedMessage(channel: string, parent_ts: string, message: string) {
  try {
    // Post a new message as a reply in the thread
    const response = await client.chat.postMessage({
      channel,
      text: message,
      thread_ts: parent_ts, // This makes it a threaded message
    });
  } catch (error) {
    console.error("Error sending threaded message:", error);
  }
}

// Usage example
sendThreadedMessage("C123456789", "1688852910.123456", "This is a reply in the thread.");

async function sendMessageWithThread(channel: string, message: string, replyMessage: string) {
  try {
    // Send the parent message
    const parentMessage = await client.chat.postMessage({
      channel,
      text: message,
    });

    // Reply to the message in a thread
    await client.chat.postMessage({
      channel,
      text: replyMessage,
      thread_ts: parentMessage.ts,
    });
  } catch (error) {
    console.error("Error sending messages:", error);
  }
}

// Usage example
sendMessageWithThread("C123456789", "This is the main message", "This is a reply in the thread.");

// In your stimulus controller 
updateList() {
  this.listTarget.innerHTML = `
    <div class="flex gap-2">
      <span>${this.name}</span>
      <button>Delete</button>
    </div>
  `
}

// In your view 
<template data-list-target="template">
  <div class="flex gap-2">
    <span data-placeholder="name"></span>
    <button>Delete</button>
  </div>
</template>

// In your Stimulus controller
updateList() {
  const template = this.templateTarget.content.cloneNode(true)
  template.querySelector('[data-placeholder="name"]').textContent = this.name
  this.listTarget.appendChild(template)
}

def set_variant
    browser = Browser.new(request.user_agent)

    if browser.device.mobile?
      request.variant = :mobile
    else
      request.variant = :desktop
    end
  end

app/views/orders/index.html.erb
app/views/orders/index.html+mobile.erb

<%= form_with url: some_path, method: :post do |form| %>
  <%= form.text_field :some_field %>
  <%= form.submit "Submit" %>
<% end %>

<%= form_with model: @record do |form| %>
  <%= form.text_field :name %>
  <%= form.submit %>
<% end %>

aws cognito-idp admin-set-user-password \\
    --user-pool-id <pool-id> \\
    --username <cognito-username> \\
    --password <password> \\
    --permanent

const queryClient = new QueryClient(
 defaultOptions: {
  queries: {
   staleTime: 10 * 1000
  }
 }
}

queryClient.setQueryDefaults(
 ['todos','list'],
 {staleTime: 10 * 1000}
) 
//This sets default stale time of 10secs for all the matched queries having keys 'todos' and 'list'

useQuery({
 queryKey: ['todo'],
 staleTime: 10 * 1000,
});

const promises = [
  Promise.resolve(1),
  Promise.reject('Error'),
  Promise.resolve(2),
];

Promise.allSettled(promises).then((results) => {
  results.forEach((result) => {
    if (result.status === 'fulfilled') {
      console.log('Result:', result.value);
    } else {
      console.log('Error:', result.reason);
    }
  });
});

Output :
Result: 1
Error: Error
Result: 2

orders = Order.all 
orders.each do |order| 
  puts order.items # Each order triggers a separate query for items
end

orders = Order.includes(:items)
orders.each do |order|
  puts order.items # No extra query is triggered here
end

class PointsController < ApplicationController
  before_action :set_user_points, only: [:show, :redeem]
  after_action :update_points_history, only: [:redeem]

  def show
    # Show points balance
  end

  def redeem
    # Redeem points logic
  end

  private

  def set_user_points
    @points = current_user.points
  end

  def update_points_history
    # Log the points redemption action
  end
end

model User {
  id    Int     @id @default(autoincrement())
  posts Post[]
}

model Post {
  id     Int   @id @default(autoincrement())
  userId Int
  user   User  @relation(fields: [userId], references: [id], onDelete: Cascade)
}

await prisma.user.delete({ where: { id: 123 } })

git checkout branch-name

git rebase -i HEAD~3

pick 7f9d4bf first commit
pick 3f8e810 second commit
pick ec48d74 third commit

# This is a combination of 3 commits.
# The first commit message:

fix for bug

# Commit message for #2:
Updated this

# Commit message for #3:
Added comments & updated README

module ExampleConcern
  extend ActiveSupport::Concern

  included do
    # any code that you want inside the class
    # that includes this concern
  end

  class_methods do
    # methods that you want to create as
    # class methods on the including class
  end
end

class SomeController < ApplicationController
 include ExampleConcern
end

import type { MetadataRoute } from 'next'
 
export default function robots(): MetadataRoute.Robots {
  return {
    rules: {
      userAgent: '*',
      allow: '/',
      disallow: '/private/',
    },
  }
}

class Current < ActiveSupport::CurrentAttributes
  attribute :user, :account, :request_id
end

class MyJob < ApplicationJob
  after_perform :clear_current_attributes

  def perform(params)
    set_current_attributes(params[:user_id])
  end

  private

  def set_current_attributes(user_id)
    Current.user = User.find_by(id: user_id)
    Current.request_id = SecureRandom.uuid
  end

  def clear_current_attributes
    Current.reset
  end
end

const {
  data,
  mutate,
  error,
} = useSWR(endpoint, fetcherFunction, {
  fallbackData: initialData,
});