Built-in models

The validation models supported by Fatima.

Models are declared in fatima.json under model and keyed by environment variable name.

{
  "model": {
    "PORT": "integer",
    "DATABASE_URL": "url",
    "NODE_ENV": { "type": "string", "args": { "values": ["development", "production"] } }
  }
}

Models

Model	Accepted value
`string`	Any present string.
`nonempty`	A string with non-whitespace content.
`email`	A basic email-like value.
`url`	A value with `http://` or `https://`.
`uuid`	A five-part hexadecimal UUID.
`number`	A value parseable as a number.
`integer`	A numeric value without a fractional part.
`boolean`	`true`, `1`, `yes`, `on`, `y`, `enabled`, `false`, `0`, `no`, `off`, `n`, or `disabled`.
`json`	Valid JSON text.
`pem`	A value containing PEM begin and end markers.
`sk`	A value starting with `sk-` or `sk_`.
`bearer`	A value starting with `Bearer` .

Allowed values

Use args.values to restrict a parsed value:

{
  "model": {
    "NODE_ENV": {
      "type": "string",
      "args": { "values": ["development", "staging", "production"] }
    }
  }
}

The allowed-value check runs after the model parses the value.