{
  "lexicon": 1,
  "id": "org.tangled.temp.newsletter.signup",
  "defs": {
    "main": {
      "type": "procedure",
      "description": "Add an email address to the newsletter. Unauthenticated; signed-in accounts should use org.tangled.temp.account.subscribeNewsletter so the choice is remembered.",
      "input": {
        "encoding": "application/json",
        "schema": {
          "type": "object",
          "required": ["email"],
          "properties": {
            "email": {
              "type": "string",
              "description": "Email address to subscribe."
            }
          }
        }
      },
      "errors": [
        { "name": "InvalidEmail", "description": "The email address is not valid." }
      ]
    }
  }
}