Express

When asked to handle data in a request body, developers who have used Express (the “Fast, unopinionated, minimalist web framework for Node.js”) before, reach for the body-parser library. What they might not know is that body-parser is a dependency of Express and its main JSON par ...

The why and how of enterprise-style Node.js application. A setup that’s easy to test and extend using battle-hardened technologies like Express.js, Postgres and Docker Compose to run locally. Dive into the code on GitHub directly: github.com/HugoDF/express-postgres-starter. ...

To test an Express handler, it’s useful to know how to successfully mock/stub the request and response objects. The following examples will be written both using Jest and sinon (running in AVA). The rationale for this is the following. Jest is a very popular “all-in-one” testing ...

The config npm package is great (npmjs.com/package/config), but it encourages confusing and non-12-factor-app-compliant patterns. We’ll look at some of the patterns it encourages and why they’ll bring you struggles down the road as well a simple, single-file, no-dependency way to ...

DataTypes are core to the Sequelize 4 library. This is a practical and complete guide to make up for the sparse Sequelize official documentation on the subject. First of all, DataTypes contains both the types and generators for default values: eg. NOW, UUIDV1 and UUIDV4 are speci ...

There always comes a point in a web application’s life where an operation is best served in the background, this is where queues come in. There are a few queuing solutions in Node. None of them are ridiculously dominant, eg. Kue, RSMQ, Bee Queue, bull. The issue with Kue, R ...

Testing is a crucial part of the software development process. It helps to catch bugs, avoid regressions and to document the behaviour of a piece of software. Express is one of the most widespread libraries for building backend applications in JavaScript. What follows is a summar ...

Redis and Express are tools that provide a simple and clean approach to their problem domains. What follows is a Docker/Docker Compose v2 setup. The repo is available at: https://github.com/HugoDF/express-redis-docker. The docker-compose.yml is available at: github.com/HugoDF/exp ...