varjson

varjson addresses a straightforward challenge: incorporating values from environment variables into JSON configuration files. This functionality is akin to envyaml <https://github.com/thesimj/envyaml>_ and varyaml <https://github.com/abe-winter/varyaml>_, which offer similar capabilities for YAML, and has significantly inspired this package.

Example

Consider the following configuration saved in config.json:

  {
    "db": {
      "host": "$DB_HOST",
      "port": "$DB_PORT",
      "username": "$DB_USERNAME",
      "password": "$DB_PASSWORD",
      "name": "my_database"
    }
  }

With the environment variables set as follows:

  DB_HOST=some-host.tld
  DB_PORT=3306
  DB_USERNAME=user01
  DB_PASSWORD=veryToughPas$w0rd

This configuration can then be parsed using varjson like this:

  from varjson import EnvJSON

  cfg = EnvJSON(json_file="./config.json", strict=True)

  print(cfg)
  
  # {'db': {'host': 'some-host.tld',
  #   'port': 3306,
  #   'username': 'user01',
  #   'password': 'veryToughPas$w0rd',
  #   'name': 'my_database'}}

Tests

License

Licensed under the MIT license (see LICENSE <./LICENSE>_ file for more details).