30 lines
979 B
Rust
30 lines
979 B
Rust
use uuid::Uuid;
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use crate::{InputValueError, InputValueResult, Scalar, ScalarType, Value};
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#[Scalar(
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internal,
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name = "UUID",
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specified_by_url = "http://tools.ietf.org/html/rfc4122"
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)]
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/// A UUID is a unique 128-bit number, stored as 16 octets. UUIDs are parsed as
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/// Strings within GraphQL. UUIDs are used to assign unique identifiers to
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/// entities without requiring a central allocating authority.
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///
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/// # References
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///
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/// * [Wikipedia: Universally Unique Identifier](http://en.wikipedia.org/wiki/Universally_unique_identifier)
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/// * [RFC4122: A Universally Unique IDentifier (UUID) URN Namespace](http://tools.ietf.org/html/rfc4122)
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impl ScalarType for Uuid {
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fn parse(value: Value) -> InputValueResult<Self> {
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match value {
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Value::String(s) => Ok(Uuid::parse_str(&s)?),
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_ => Err(InputValueError::expected_type(value)),
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}
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}
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fn to_value(&self) -> Value {
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Value::String(self.to_string())
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}
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}
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