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Building Enterprise JavaScript Applications

Building Enterprise JavaScript Applications

By : Daniel Li
4.6 (5)
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Building Enterprise JavaScript Applications

Building Enterprise JavaScript Applications

4.6 (5)
By: Daniel Li

Overview of this book

With the over-abundance of tools in the JavaScript ecosystem, it's easy to feel lost. Build tools, package managers, loaders, bundlers, linters, compilers, transpilers, typecheckers - how do you make sense of it all? In this book, we will build a simple API and React application from scratch. We begin by setting up our development environment using Git, yarn, Babel, and ESLint. Then, we will use Express, Elasticsearch and JSON Web Tokens (JWTs) to build a stateless API service. For the front-end, we will use React, Redux, and Webpack. A central theme in the book is maintaining code quality. As such, we will enforce a Test-Driven Development (TDD) process using Selenium, Cucumber, Mocha, Sinon, and Istanbul. As we progress through the book, the focus will shift towards automation and infrastructure. You will learn to work with Continuous Integration (CI) servers like Jenkins, deploying services inside Docker containers, and run them on Kubernetes. By following this book, you would gain the skills needed to build robust, production-ready applications.
Table of Contents (20 chapters)
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1
The Importance of Good Code

Validating data type


We have completed our first scenario, so let's move on to our second and third scenarios. As a reminder, they are as follows:

  • If the client sends a POST request to /users with a payload that is not JSON, our API should respond with a 415 Unsupported Media Type HTTP status code and a JSON object payload containing an appropriate error message.
  • If the client sends a POST request to /users with a malformed JSON payload, our API should respond with a 400 Bad Request HTTP status code and a JSON response payload containing an appropriate error message.

 

Start by adding the following scenario definition to the spec/cucumber/features/users/create/main.feature file:

  Scenario: Payload using Unsupported Media Type

  If the client sends a POST request to /users with an payload that is 
  not JSON,
  it should receive a response with a 415 Unsupported Media Type HTTP 
  status code.

    When the client creates a POST request to /users
    And attaches a generic non-JSON payload
...
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Building Enterprise JavaScript Applications
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