A Connection struct stores information about how to connect to a database */.

A DatabaseUploadResponse is used to alert a caller information about their uploaded file.

MockMongoCollection is used for unit testing to mock a MongoDB */.

MockMongoQuery is used for unit testing MongoDB queries */.

MongoDatabaseService encapsulates behaviors for working with MongoDB databases */.

A MongoUploader uploads files to a MongoDB database.

BaseDatabase defines the simplest things a database can do: connect and disconnect */.

A DatabaseUploader defines an interface for uploading files to a database */.

DocumentDatabase defines the basics of what a document-based database system can do */.

MongoCollection is an interface describing MongoDB collection methods */.

MongoQuery is an interface describing a MongoDB query */.