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Building APIs doing Outside-In TDD in Node and Typescript

  • Development
  • May 02, 2025
SynopsisBuilding APIs doing Outside-In TDD in Node and Typescript, av...
Building APIs doing Outside-In TDD in Node and Typescript  No.1

Building APIs doing Outside-In TDD in Node and Typescript, available at $49.99, has an average rating of 4.3, with 21 lectures, based on 10 reviews, and has 161 subscribers.

You will learn about Build REST API in Node and TypeScript Test with Jest framework Outside-in TDD approach a.k.a. mockist a.k.a. London school TDD Test doubles, mocks, spies, stubs, fakes and dummies Docker Mongo MongoDB Mongoose Node and Express This course is ideal for individuals who are Developers with certain experience writing code or Developers with certain experience writing tests or Developers with certain experience practicing TDD It is particularly useful for Developers with certain experience writing code or Developers with certain experience writing tests or Developers with certain experience practicing TDD.

Enroll now: Building APIs doing Outside-In TDD in Node and Typescript

Summary

Title: Building APIs doing Outside-In TDD in Node and Typescript

Price: $49.99

Average Rating: 4.3

Number of Lectures: 21

Number of Published Lectures: 21

Number of Curriculum Items: 21

Number of Published Curriculum Objects: 21

Original Price: 139.99

Quality Status: approved

Status: Live

What You Will Learn

  • Build REST API in Node and TypeScript
  • Test with Jest framework
  • Outside-in TDD approach a.k.a. mockist a.k.a. London school TDD
  • Test doubles, mocks, spies, stubs, fakes and dummies
  • Docker
  • Mongo MongoDB Mongoose
  • Node and Express
  • Who Should Attend

  • Developers with certain experience writing code
  • Developers with certain experience writing tests
  • Developers with certain experience practicing TDD
  • Target Audiences

  • Developers with certain experience writing code
  • Developers with certain experience writing tests
  • Developers with certain experience practicing TDD
  • In this course we will implement a REST API in Node with express and typescript. We will store data in a mongodb database using mongoose. In order to implement this REST API, we will receive an OpenAPI Specification (OAS) file that will be the base to design and build our application.

    The API we are going to build is a clone of the One Time Secret site. We will create an application that stores our secrets and provides us a URL to access them later, but with the condition that we can access that URL one time only. Whenever we attempt to retrieve the same secret again, hitting the same URL for a second time, we will receive an error.

    Given that we already know how the public interface would look like with the OpenAPI Specification file provided, we will be using Test Driven Development (TDD) but following an Outside-In approach, also known as mockist approach or London School TDD. We will start writing the acceptance criteria tests, keeping them in red, we will start the double cycle and write unit tests for the inner components. That way we will build our way inside the application, one level at a time until we can make the acceptance test completely pass. While coding, even though we already have a quite clear direction of our application design, we will try to get inspired with DDD, Hexagonal Architecture and CQRS.

    Kudos to @Panos for the constructive feedback that helped to make this course better.

    Course Curriculum

    Chapter 1: Introduction

    Lecture 1: Introduction to the Course

    Chapter 2: Problem Presentation and Project Initialization

    Lecture 1: Problem presentation

    Lecture 2: The OpenAPI Specification (OAS) File

    Lecture 3: Project Initialization

    Chapter 3: Retrieve Data from the system

    Lecture 1: First Red Acceptance Test

    Lecture 2: First Green Acceptance Test

    Lecture 3: Refactor I

    Lecture 4: Extending the Controller and the ErrorHandler

    Lecture 5: Refactor II

    Lecture 6: Secret Retriever Service

    Lecture 7: Secret Repository

    Lecture 8: Pass Get Secrets Acceptance Tests

    Lecture 9: Uncontrolled Errors

    Chapter 4: Store data from the system

    Lecture 1: Write the first failing acceptance test

    Lecture 2: Implement the controller

    Lecture 3: The Secret Storer service

    Lecture 4: Token Generator

    Lecture 5: Extending the Secret Repository

    Lecture 6: Unhandled Errors

    Lecture 7: Refactor III

    Chapter 5: End To End Testing with Jest and supertest

    Lecture 1: Write End to End (e2e) Tests

    Instructors

  • Building APIs doing Outside-In TDD in Node and Typescript  No.2
    Josep Mir
    Software Engineer/ Software Crafter
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  • 4 stars: 4 votes
  • 5 stars: 4 votes
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