main

This is a Rust program that defines a web API using the Rocket framework. The API provides endpoints for accessing studies and submitting responses.

The program defines a MongoDB database and a DB struct that represents a connection to this database. The #[database("mongodb")] attribute macro specifies that the DB struct should use the MongoDB database.

The ACTIVE_DB is set to the database if the debug_assertions is true or false.

The Key struct represents an API key used to access a study. The Study struct represents a study stored in the database.

The program defines the following endpoints:

• docs_assets: serves static files from the /docs/ directory.
• status: returns a static string indicating that the API is live.
• fetch_study: retrieves a study from the database by ID or by study_id property. Returns the study as JSON or an error if the study is not found.
• get_study_by_post: legacy support for retrieving studies using POST requests. all_studies: retrieves all studies from the database. Returns the studies as JSON.
• all_studies_of_study_id: retrieves all studies with a given study_id property from the database. Returns the studies as JSON.
• create_study: inserts a new study into the database. Expects a Study object in the request body. Returns the ID of the newly created study.
• save_response: saves a response to a study in the database. Expects a Response object in the request body.
• save_log: saves a log message to the database. Expects a Log object in the request body.
• create_redcap_project: creates a new REDCap project and saves the API key to the database. Expects a Study object in the request body and a username parameter in the URL.