idibidiart

Building a Maintainable, Agile Architecture for Realtime, Transactional Apps

A maintainable application architecture requires that the UI only contain the rendering logic and execute queries and mutations against the underlying data model on the server. A maintainable architecture must not contain any logic for composing "app state" on the client as that would necessarily embed business logic in the client. App state should be persisted to the database and the client projection of it should be composed in the mid tier, and refreshed as mutations occur on the server (and after network interruption) for a highly interactive, realtime UX.

With GraphQL we are able to define an easy-to-change application-level data schema on the server that captures the types and relationships in our data, and wiring it to data sources via resolvers that leverage our db's own query language (or data-oriented, uniform service APIs) to resolve client-specified "queries" and "mutations" against the schema.

We use GraphQL to dyn

guumaster

Upload a file with $.ajax to AWS S3 with a pre-signed url

When you read about how to create and consume a pre-signed url on this guide, everything is really easy. You get your Postman and it works like a charm in the first run.

Then you open your browser, try your usual $.ajax() and send your PUT operation, and you hit the cold iced wall of AWS error message, a simple <Code>SignatureDoesNotMatch</Code> that will steal hours from your productivity.

So here I come to save you and give you a free working example of how to upload a file directly to AWS S3 from your browser. You are wellcome :).

marty-wang

Disclaimer: The instructions are the collective efforts from a few places online. 
Nothing here is my original. But I want to put them together in one place to save people from spending the same time as I did.

First off, bundle.
==================

1. cd to the project directory
2. Start the react-native packager if not started
3. Download the bundle to the asset folder:
curl "http://localhost:8081/index.android.bundle?platform=android" -o "android/app/src/main/assets/index.android.bundle"

aembleton

Converting a Word Document to Markdown in One Move

The Problem

A lot of important government documents are created and saved in Microsoft Word (*.docx). But Microsoft Word is a proprietary format, and it's not really useful for presenting documents on the web. So, I wanted to find a way to convert a .docx file into markdown.

Installing Pandoc

On a mac you can use homebrew by running the command brew install pandoc.

The Solution

pankaj28843

Deprecated Notice

This script, originally created on April 29, 2015, addressed a different behavior of LibreOffice installation on macOS at that time. However, it is now outdated and no longer relevant. Please refer to the latest comments for updated information, as much has changed over the past 8–9 years.

---

Quick Start

sudo curl https://gist.githubusercontent.com/pankaj28843/3ad78df6290b5ba931c1/raw/soffice.sh > /usr/local/bin/soffice && sudo chmod +x /usr/local/bin/soffice

samhernandez

#!/bin/bash

# This script assumes you have ssh access to a remote server
# Both databases are backed up to sql files in the same directory
# this script is executed from.
# Usage: 
#   1. Make sure this file is executable with `chmod +x mysqlsync`
#   2. Set the credentials for the variables at the top
#      (Remember, no spaces around the '=' sign)
#   3. Run it from a directory where you'd like the backup files to go:

wincent

2015-01-29 Unofficial Relay FAQ

Compilation of questions and answers about Relay from React.js Conf.

Disclaimer: I work on Relay at Facebook. Relay is a complex system on which we're iterating aggressively. I'll do my best here to provide accurate, useful answers, but the details are subject to change. I may also be wrong. Feedback and additional questions are welcome.

What is Relay?

Relay is a new framework from Facebook that provides data-fetching functionality for React applications. It was announced at React.js Conf (January 2015).

john2x

Clojure Destructuring Tutorial and Cheat Sheet

(Related blog post)

Simply put, destructuring in Clojure is a way extract values from a datastructure and bind them to symbols, without having to explicitly traverse the datstructure. It allows for elegant and concise Clojure code.

Vectors and Sequences

labnol

Learning Google Apps Script

Find the best resources for learning Google Apps Script, the glue that connects all Google Workspace services including Gmail, Google Drive, Calendar, Google Sheets, Forms, Maps, and more.

A good place to learn more about Google Apps Script is the official documentation available at developers.google.com. Here are other Apps Script resources that will help you get up to speed.

1. Google Apps Script Code Samples by Amit Agarwal
2. Google Apps Script Development - Create Google Apps Script projects locally inside VS Code - video tutorial
3. Awesome Google Scripts by Amit Agarwal
4. Google Developer Experts - Follow Apps Scr

whoahbot

Clojure West

Domain driven design with Clojure

• Organizing larger applications
• Domain logic shouldn’t include handlers for bad/unclean data.
  • validateur, bouncer, clj-schema for checking data going into the pipeline.
  • domain-specific, semantic checks
  • TODO: Any better ways for doing this conditional validation.
  • Need to factor out common data cleaning utils into shared library.