Our Get Salt endpoint does not accept any request bodies, but it does require a query string parameter called email, which must be set to a valid email address. Therefore, we must define a parameters property, containing a list of parameter objects. Each Parameter Object can contain the following properties:

• name* (string): The name of the parameter
• in* (string): Where the parameter is specified. Possible values are query, header, path, or cookie.
• required (boolean): Whether the parameter is required.
• schema (object): This describes the structure of the parameter:

paths:
  /salt:
    get:
      ...
      parameters:
      - name: email
        in: query
        description: The email of the user to retrieve the salt for
        required: true
        schema:
          type: string
          format: email