4. Querying Documents

Activity 4.01: Finding Movies by Genre and Paginating Results

Solution:

The most important part of the findMoviesByGenre function is the underlying MongoDB query. You will take a step-by-step approach to solving the problem, starting with creating the query on a mongo shell. Once the query has been prepared, you will wrap it into a function:

1. Create a query to filter results by genre. For this activity, we are using the Action genre:

         db.movies.find(
             {"genres" : "Action"}
         )

2. The requirement is to return only the titles of the movies. For this, add a projection to project only the title field and exclude the rest, including _id:

         db.movies.find(
             {"genres" : "Action"},
      ...