Today I Learned

In PHP, unlike JavaScript, we don't have native support for Promises or asynchronous programming. This limitation can become apparent when dealing with multiple HTTP requests that need to be made simultaneously. However, the Http::pool method, as shown in the code snippet, offers a workaround by allowing us to leverage parallel processing.

The code uses the HTTP pools functionality provided by the Laravel HTTP client, which is a convenient way to execute multiple HTTP requests concurrently. Here's an expanded explanation of the code:

//dummy code

$responses = Http::pool(fn (Pool $pool) => [
    $pool->get("https://jsonplaceholder.typicode.com/todos/1"),
    $pool->get("https://jsonplaceholder.typicode.com/users/1"),
    $pool->get("https://jsonplaceholder.typicode.com/posts/1")
]);

$todoInfo = $responses[0]->json();
$userInfo = $responses[1]->json();
$postInfo = $responses[2]->json();

This code snippet demonstrates how to make three (or more) simultaneous HTTP calls to different endpoints using HTTP pools in PHP. In a specific situation on the project I'm working on, this approach significantly reduced the load time from 3 seconds to 1.1 seconds.

Problem

Transfering files in the background via rsync is possible via nohup command and some other workarounds.

These don't really work when your transfer takes days (>50TB of data) because the background job might get killed by the system.

In order to create a persistent session we need to use tmux.

Solution

Authentication

Create a ssh key and upload it to the server you want to transfer from.

ssh-keygen -t ed25519
ssh-copy-id -i ~/.ssh/id_rsa.pub [your_old_server.domain.com]

Create a new session and run rsync

tmux new -s [your_session_name]

rsync --avhPW --stats [your_old_server.domain.com]:[/source/path/] [/destination/path]

Detach from session

Press CTRL+B and then D. You session will detach and run in background.

Re-attach session

To get back into your session just:

tmux a -t [your_session_name]

That's it.

In Laravel, if you make a POST request, to a store action that injects a FormRequest, via Postman and you don't specify the correct Accept header, Laravel will redirect. By default, the generic */* header is used, which will not prevent redirection. You must explicitly change it to application/json.

In order to use TouchID on MacBook Pro for Terminal sudo prompts, we need to enable Apple's Touch ID PAM module pam_tid.so (https://opensource.apple.com/source/pam_modules/pam_modules-173.1.1/modules/pam_tid/pam_tid.c.auto.html).

Just edit /etc/pam.d/sudo and add

auth sufficient pam_tid.so

Heads up, when you do a system update this change will be most probably overwritten. In order to make it persistent, you need to create a launchd daemon.

Create a new file called pam-tid.sh in a shared path

vim /Users/Shared/pam-tid.sh

#!/bin/bash

if ! grep 'pam_tid.so' /etc/pam.d/sudo --silent; then
  sed -i -e '1s;^;auth       sufficient     pam_tid.so\n;' /etc/pam.d/sudo
fi

Create a new com.graffino.pam.plist file:

vim /Users/Shared/com.graffino.pam.plist`

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>Label</key>
    <string>com.graffino.pam</string>

    <key>KeepAlive</key>
    <false/>

    <key>LaunchOnlyOnce</key>
    <true/>

    <key>RunAtLoad</key>
    <true/>

    <key>ProgramArguments</key>
    <array>
        <string>/usr/local/bin/pam-tid.sh</string>
    </array>
</dict>
</plist>

Start the daemon

I didn't understand why git did not recognize the renamed files, also deployment build was failing due to these changes.

My initial file name was "Advanced-Menu", I changed the file name, to "advanced-menu" and committed the changes.

The actual problem is that the macOS file system is case insensitive, therefore if you rename a file on macOS, changing only the case, git will not see the changes.

In order to fix it you have to set your git repository to be case insensitive by issuing:

git config core.ignorecase false

and rename the file using git mv:

git mv Advanced-Menu advanced-menu

Commit your changes. That's all.

You could also set this change globally to prevent future issues:

git config --global  core.ignorecase false