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Data

This README.md is a guide to understanding the Space Exploration data model used in this FastAPI example and the associated fixtures.

The Data Model

The data model consists of three main entities:

  1. Space Agencies
  2. Launching Sites
  3. Satellites

1. Space Agencies

A space agency represents an organization that has capabilities of launching satellites into space. This entity consists of the following properties:

  • id (UUID): A unique identifier for the agency.
  • name (string): The name of the space agency.
  • description (string): A brief description about the space agency.
  • website (string): The URL of the agency's official website.
  • active (boolean): Indicates whether the agency is currently active.

2. Launching Sites

A launching site is a location from where space agencies launch their satellites. This entity consists of the following properties:

  • id (UUID): A unique identifier for the launching site.
  • name (string): The name of the launching site.
  • description (string): A brief description about the launching site.
  • country (string): The country where the launching site is located.
  • address (string): The address of the launching site.
  • agency_ids (list of UUIDs): A list of unique identifiers of space agencies that use this launching site.
  • avg_rating (float): An average rating representing the site's performance or reputation.

3. Satellites

A satellite is an object that has been intentionally placed into orbit. In this model, a satellite represents one launched by a space agency from a specific launching site. This entity consists of the following properties:

  • id (UUID): A unique identifier for the satellite.
  • name (string): The name of the satellite.
  • launch_date (string): The date the satellite was launched.
  • status (string): Current status of the satellite (e.g., "active", "inactive", "decommissioned").
  • agency_id (UUID): The unique identifier of the space agency that launched the satellite.
  • launching_site_id (UUID): The unique identifier of the launching site from where the satellite was launched.

Fixtures

Fixtures are sets of data to be imported into a local database or used to run unit tests. The data model uses three fixtures, each corresponding to one of our entities.

  • space_agencies.json: a list of space agencies.
  • launching_sites.json: a list of launching sites, each linked to the space agencies that use them. A launching site can be shared by different space agencies.
  • satellites.json: a list of satellites, each linked to a space agency and launching site.

The data in these fixtures are for illustrative purposes and should be replaced with actual data for a production environment. The relationships among the data (e.g., satellites are linked to agencies and launching sites) are representative of real-world relationships in the domain of space exploration.