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Better Queue in Node JS

Move heavy processing task to background with better-queue module in Node.js
Aug 03, 2020
A good practice in software development is to delegate as much heavy work as possible to background jobs to avoid blocking the main execution of your application that can be a web app, mobile app, or desktop.

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How to build a sitemap xml in Node js using Express

Create a sitemap in Node and Express framework for Search Engine Optimization
Jun 17, 2020
A good sitemap.xml will help you a lot in terms of SEO. It’s a nice starting point if you want to index your site. It’s just a standard XML file that search engines understand.

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Migrate sforce.connection.query to Lightning equivalent

Use Lightning Components to move your JavaScript buttons implemented for Classic
Jun 18, 2020
As you probably know, JavaScript buttons are not supported in Lightning Experience (LEX). In particular, you can’t use REQUIRESCRIPT. In this post, the idea is to show how to migrate a particular JavaScript button that uses sforce.connection.query sentence.


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Test Driven Development (TDD) in a nutshell

Jul 24, 2020
Every project has somewhere in the src folder a file called utils.js, Utils.java, utils.py, etc....


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Load dynamic data into a table using Lightning Web Component

Create a custom tab to display a Lightning Web Component
Nov 04, 2021

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How to configure HTTPS in Node.js

See how to setup a secure environment in our local machine to test HTTPS
Jul 27, 2020
Sometimes we need to configure a secure environment locally to test how our application reacts to HTTPS.

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SFDX - Error authenticating with auth code due to: grant type not supported

Common error when authenticating from SFDX CLI
Apr 27, 2021
Error authenticating with auth code due to: grant typw not supported. This is most likely not an error with the Salesforce CLI. Please ensure all information is accurate and try again

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Compress a file in Node.js

Jul 27, 2020
Zip a file in Node.js it's easy using zlib

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Hash text in Node.js

Hash a text using native crypto module in Node JS. No extra dependencies.
Aug 02, 2020
Hash a string in Node.js without extra dependencies

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5 reasons to choose WordPress as your content management tool

Popularity. Flexibility. SEO. Free and paid plans. Awesome editor
Jul 31, 2020
As Engineer I installed WordPress many times, facing issues such as performance and security. When you host WordPress by your own...

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Upload big files to S3 using Node.js

Stream big files from disk and upload them to AWS S3 bucket using chunks
Jul 29, 2020
Sometimes you need to upload a big file, let say bigger than 100MB. Stream from disk must be the approach to avoid loading the entire file into memory.

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How to connect to a PostgreSQL database in Node.js

Connect to Postgres database in Node js using pg and parse-database-url packages
Jul 28, 2020
A simple example about how to connect to a PostgreSQL database using Node.js

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How to use a GitHub repository as a dependency in Node.js

Aug 30, 2020
Sometimes you need a dependency that is not published as a regular package at npmjs.com

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Template of Java web and Heroku

Jul 31, 2020
I’ve worked in several projects with Java, specially Java web using Tomcat as a web container and then Glassfish as application server.

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How to configure and use testcontainer in Node.js

testcontainer as a Node.js module to create dynamic containers
Oct 13, 2021

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Download Salesforce metadata using SFDX

How to download Salesforce metadata to your local machine using SFDX CLI
Feb 23, 2021
Download Salesforce metadata using SFDX

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Optimizing Node JS code

Small actions that may generate big impact in your performance
Aug 03, 2020
At different levels you might optimize your JavaScript code. Sometimes optimization is a matter of good practices such as avoid using logging in loops.

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How to render HTML in Jade

Jade is a Node.js template engine that uses indentation as part of the syntax
May 15, 2021
By default, Jade buffers the output so we have to be explicit when we want unbuffered code

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Dealing with concurrency in Node.js

Yeap, race condition is present also in Node.js regardless the single thread Event Loop
Aug 30, 2020
Even though the Event Loop is a single thread we have to take care of race condition since 99% of our code will run in a non main thread.

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Full-text search in Node JS - search related data

Search related content using FlexSearch package for Node.js. See an implementation example with Express framewrok
Aug 04, 2020
If you are building a website, e-commerce, a blog, etc., you will need a full-text search to find related content like Google does for every web page.

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How to configure http auth basic in Node js and Express

Aug 04, 2020
Let’s build a small site in Node.js using Express that will have one protected page

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Migrate $User, $Profile, $Label and $Api to Lightning Components

Rollout to Lightning by migrating non-supported JavaScript buttons
Jun 18, 2020
We can’t use $User, $Profile, $Label and $Api in Lightning. We need to implement a server-side solution.

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Detect record changes in a Lightning Component

Listen to events when a record changes outside your Lightning component
Apr 16, 2021
Listening to changes in a Lightning Component from record changes

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Do you really need a mobile app?

Aug 30, 2020
I see lots of brands advertising "Hey, download our mobile app and…"


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Cache implementation in Node.js

A custom cache implementation to show how Promises powerful are
Aug 08, 2020
A cached value it’s dynamic data, expensive to calculate, that we make it constant during a period of time.


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Redirect all requests from HTTP to HTTPS in Node.js and Express

How to redirect all non secure requests to HTTPS in Node.js and Express
Jun 15, 2020
The first step will be to create a method to guess if the HTTP request comes from HTTP or HTTPS (secure or not secure). In some context like AWS or Heroku you will have to ask by the header x-forwarded-proto instead of req.secure.

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How to send a message to AWS SQS queue from Salesforce Apex class

Surprisingly, making a callout to put a message in AWS SQS queue is tricky in Apex
Jan 31, 2021
How to post a message in an AWS SQS queue from an Apex class in Salesforce

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Load stylesheets in background to increase page speed

Aug 16, 2020
Optimize the page loading time by loading your style sheets in background.

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How to use node-cache to accelerate queries

Using node-cache package to cache heavy and frequent queries in Node.js
Aug 25, 2020
Database access is usually expensive so you should optimize roundtrips as much as possible.

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How to connect to a Redshift database from Node.js

See how to use pg-promise to connect to a AWS Redshift database
Aug 11, 2020
A util piece of code to connect to a Redshift database

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Node.js and typescript project template

Oct 08, 2021
A project template with typescript, jest and linter among others configurations

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Install and run Redis locally

How to configure Redis to run it in your local machine.
Aug 18, 2020
How to install and run Redis in your local machine

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How to setup Github Actions workflow lint

Configure a workflow to execute your linter when pushing code
Apr 25, 2021
How to setup Github Actions workflow lint

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How to download a Salesforce file from Node.js

A JavaScript snippet to download a Salesforce file using the Rest API
Apr 20, 2021
Download a file from Salesforce using Node.js


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jsonplaceholder: a free fake API for testing and prototyping

JSONPlaceholder is a free online REST API that you can use whenever you need some fake data.
Sep 13, 2021

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How to make Load and Smoke testing with Artillery

Artillery is a CLI tool installed easily through npm
May 20, 2021
Artillery is a modern load testing and smoke testing solution designed for cross-functional teams that run microservice-based systems on AWS and rely on CI/CD to ship at high velocity

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Define environment variables in Tomcat

Aug 29, 2020
Sometimes you want to change the behavior of your code without recompiling or deploying.

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error authenticating with auth code due to: grant type not supported

error authenticating with auth code due to: grant type not supported
Aug 31, 2021
error authenticating with auth code due to: grant type not supported

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Clean up more than two spaces and new lines with regex

A simple JavaScript method that removes all newlines and multiple spaces from a given text
Aug 28, 2020
A simple JavaScript method that removes all new lines and multiple spaces (including tab spaces) by a single space

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Configure Prettier in your Node JS project

How to configure Prettier to format your code as It was written by only one developer
Aug 08, 2020
Prettier is a code formatter that supports many languages and can be integrated with most of the editors

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Salesforce client for an Apex RESTful web service

Expose a Rest service from an Apex class using RestResource annotation
Aug 29, 2020
An example about how to consume a Salesforce api rest

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pg-promise self signed certificate error in Postgres

To fix this issue you have to use the package with the following recommendations
Aug 20, 2020
If you are using Node.js with some of these packages: pg-promise or pg probably you are facing this issue.

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Magic Mover for Notes And Attachments to Lightning Experience

Get ready for Lightning Experience by migrating your attachments and notes
May 22, 2021
Files are more versatile and provide better functionality than attachments. Attachments can only be attached to a single record, while files...

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This is most likely not an error with the salesforce cli

Please ensure all information is accurate and try again. (Salesforce)
Oct 07, 2021
Error authenticating with auth code due to: grant type not supported

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DB schema updates with knex in Node.js

Run database migration with knex
Feb 06, 2021
Knex is a query builder and among other things, it's an awesome tool to run DB migrations to create tables and modify them as you usually do with SQL scripts

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Protect your social networks with two-factor authentication

See how to protect the most used social networks
Apr 29, 2021
Nowadays a super complex password is not enough to avoid being hacked. In fact, most of the times your password is not guessed by brutal force (try until it works).

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Download and save a file in Node.js

Get a file from a server and store it in your disk
May 13, 2021
Download a file in Node.js is pretty straightforward. We are going to make an implementation using native modules. No third parties.

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Get Visualforce usage stats from VisualforceAccessMetrics

How to find out how often your Visualforce pages are accessed using Visualforce Access Metrics
Aug 08, 2020
If you want to know how frequently your Visualforce pages are accessed, you just have to run a simple query on VisualforceAccessMetrics

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How to connect to a MySQL database in Node.js

Oct 12, 2021
To connect to a MySQL database in Node.js is pretty straightforward with the module mysql2.

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Node.js Express Mysql stack deployed on Heroku

How to build a rest API from zero using Node.js, Express and MySQL
Oct 09, 2021
Let's build a Rest API from scratch that uses a MySQL database. We are going to use Node.js and Express as a framework to generate some scaffolding for our Rest API

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Call an Apex method from Process Builder

See how to configure a Flow with process builder to execute an Apex method in Salesforce
Nov 11, 2021
As a thumb of rule in Salesforce you should always try to create new business logic through point-and-click but sometimes our logic it's a bit special and we need some Apex code.

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Invalid request provided: AWS::AppFlow::FlowCreate - Salesforce integration

This is a common error when a field is mapped in App Flow but it doesn't exist in Salesforce
Nov 19, 2021
Resource handler returned message: "Invalid request provided: AWS::AppFlow::FlowCreate Flow

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Salesforce integration with AWS AppFlow, S3, Lambda and SQS

Send data out of Salesforce with AWS AppFlow service in realtime
Aug 24, 2021
There are many ways to sync up our Salesforce data with third parties. One option is a mix of Salesforce and AWS services, specifically Change Data Capture from Salesforce and AppFlow from AWS.

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Lightning data table conditional cell color

Set text or background color for lightning data table rows
Jan 13, 2022
Let say you want to highlight a cell in a Lightning data table (lightning:datatable) when a specific value is invalid. In our example, we want to display those invalid emails in red.

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Bye bye FindBugs. Hello SpotBugs

Even FindBugs is no longer maintained we have an alternative called SpotBugs.
Aug 08, 2020
I used to use FindBugs plugin in my Java projects to detect and learn about issues and potential issues in my source code.

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How to send a pushengage notification with node-fetch

Send push notifications using pushengage.com through Node.js and node-fetch module
Jan 14, 2022
Sending push notifications from pushengage.com dashboard is pretty easy but what about f we want to automate some process in our web site?

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jsonplaceholder - free and unlimited json API placeholder

Mock backend data with a free and unlimited json API
Jan 05, 2022
Frandom is a JSON Placeholder fake REST API that is mainly used for prototyping and testing.

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Frandom API placeholder

Mock your backend using a placeholder API that returns random data
Oct 29, 2021
A simple API to generate random data such as companies and persons. It is open to the public. No API key required. No registration required.

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What is Node.js and what is the Event Loop

Node.js is a JavaScript runtime environment to run server-side web applications
Dec 03, 2021
Node.js provides simplicity in development because of its non-blocking I/O and even-based model results in short response time and concurrent processing, unlike other frameworks where developers have to use thread management.

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How to generate a random string in Apex

A Apex method to get a random string given a length
Oct 13, 2021

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Salesforce rest api download ContentVersion

Download a Salesforce file (ContentVersion) through the API using Node.js with jsforce package
Sep 09, 2021