Examples:

Example Models

The following examples can be found in the /api folder.

Database Model using Knex

The model at api/profile/profileModel.js provides all CRUD operations for the profile resource using a knex connection.

API Model using Axios

The model in api/dsService is an example of using a model to wrap the calls to an internally created API.

Example routes of resources

Some examples of routes are provided.

Simple Non-resource route

The / (index) route is a simple GET route that is not tied to a resource.

Full CRUD for a single resource

The /profile route is dedicated to a single resource (model).

This route provides CRUD operations on the profile model. Profile is a replacement for the notion of a User when using an identity provider (Okta) where Users are owned by the third party service.

Wrapper Routes

The /data routes are wrappers around an internal API (DS resources)

When working on a project that has other services being created Labs wants you to keep those behind a single authenticated server. This API starter shows an example of wrapping these services.

Notice that the /data/predict route is not merely a copy of the DS service but creates a path that may be esasier for the FE to consume. Make sure to work with the owner of the service to understand it's use and if such a change will work.

Swagger Setup

Swagger docs are created using open api v3 notations. There are 2 libraries used to generate the swagger formatted docs:

• swagger-ui-express

• swagger-jsdoc

Quick review of the swagger setup in Labs projects.

Swagger UI Express

This library is used to setup and serve the offical swager ui resources (html,css,js). The express app is setup to send requests to the route /api-docs to the swagger-ui-express library.

Swagger JS Doc

This library is used to parse the root definition file and inline JsDoc comments. The api documentation entries are found inline on the router files in api/**/*Router.js and use the yaml notation format. This is the most common format found in swagger reference docs and resources found online.

The jsdoc.js definition file contains the application level information, like app name, version, description and license. You can define reusable components in this file and reference them throughout your jsdoc comments.

Take note in the jsdoc.js file that tags are used to group routes together.

Testing

You will be using jest to write function or endpoint/route unit tests in your application. Please put all of your tests for your code in the __tests__ directory. You should get into the habit of ensuring that you have coverage for your code before submitting a pull request.

Running your tests

Follow these steps when writing tests:

• cd into the root of this directory

• npm run test to run your test suite

  • if you're prompted select a to run tests in watch mode. This will re-run your test suite when you save any file in your application.

• In your terminal you will see a test runner that looks something like this:

  ​​

• When you're not actively writing tests its best to close that terminal window so that you don't keep running tests when your files are saved.

Test screenshot

Coverage

💡 Code coverage should be a good goal to have and a good starting place. But every application will be different.

• ​Kent Dodds put it nicely. Strive for solid coverage as we strive to hand you over well-tested code in which we have extreme confidence.

• To run a coverage report for your application simply run npm run coverage.

• You should see a print out in your console that looks like this:

  ​