Chapter 6. Writing a REST API: Exposing the MongoDB database to the application

This chapter covers

  • Rules of REST APIs
  • API patterns
  • Typical CRUD functions (create, read, update, delete)
  • Using Express and Mongoose to interact with MongoDB
  • Testing API endpoints

As we come in to this chapter we have a MongoDB database set up, but we can only interact with it through the MongoDB shell. During this chapter we’ll build a REST API so that we can interact with our database through HTTP calls and perform the common CRUD functions: create, read, update, and delete.

We’ll mainly be working with Node and Express, using Mongoose to help with the interactions. Figure 6.1 shows where this chapter fits into the overall architecture.

Figure 6.1.

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