async-graphql/src/types/external/decimal.rs
Bram Hoendervangers 6fb324182b Add decimal scalar
2021-07-01 23:47:30 +02:00

20 lines
493 B
Rust

use std::str::FromStr;
use rust_decimal::Decimal;
use crate::{InputValueError, InputValueResult, Scalar, ScalarType, Value};
#[Scalar(internal, name = "Decimal")]
impl ScalarType for Decimal {
fn parse(value: Value) -> InputValueResult<Self> {
match &value {
Value::String(s) => Ok(Decimal::from_str(s)?),
_ => Err(InputValueError::expected_type(value)),
}
}
fn to_value(&self) -> Value {
Value::String(self.to_string())
}
}