The Extend Challenge

This is bare-bones version of our backend codebase, where we ask candidates to make a small contribution. The goal: give both the candidate and the Extend team a chance to interact on a realistic, but limited (shooting for just a few hours), task. We see this as a two-way evaluation, for the team and the candidate to decide if its a good fit.

Setup

• Install Homebrew.

• Install the Node Version Manager.

• Install yarn

  brew install yarn

• Clone the repository on the local machine.

  git clone https://github.com/helloextend/lambda-scaffold.git
  cd lambda-scaffold

• Copy this repository to your own private repository on GitHub.

• Make sure you're on the correct version of NodeJS.

  nvm use

• Install the app

  yarn

• Run all tests

  yarn test

• Confirm our a compiled-build of our sample Lamdbda handler works

  yarn test:lambda

Challenge

Follow these steps to create a new API endpoint in this codebase:

• create a new branch from master.

• use this public endpoint to pull breeds of dogs

• in src/lambdas, add a new handler module, in a file called something like breeds-get.ts, along with a breeds-get.test.ts.

• Use node-fetch (already installed) to pull from the dogs-list endpoint. Organize the code in a way that could scale if the codebase were to grow.

• the endpoint handler should return a list of all breeds as a flat array of strings, with each sub-breed getting a separate element. For example, both english sheepdog and shetland sheepdog should be on the list.

• in your handler tests breeds-get.test.ts, create a way to mock the results of the external API call, so the handler can be tested without an internet connection.

• test the happy path, and the cases of a timeout error from the external dogs-list endpoint.

• submit a PR in your repository, with a descriptive message, and no more than a few commits (each with a clear purpose).

• in your private repository, add paulswebapps as a collaborator, and send an email to [email protected] with a link to your repository.

• before the next interview, we will provide PR feedback, to give you a chance to improve your solution before the call.

• Feel free to ask questions, as we want to simulate working with the team.