UUID validator

[edbo]

Add a validator that accepts ID or String Input Values that are UUIDs and validates them for correctness and optionally checks the version number is correct.

Example:

#[Object]
impl MutationRoot {
    async fn add_user_to_team(
        &self,
        ctx: &Context<'_>,
        #[graphql(validator(uuid))] team_id: ID,
        #[graphql(validator(uuid = 4))] user_id: ID,
    ) -> ID {
        let pool = ctx.data::<Pool<Postgres>>().unwrap();
        team_repository::add_user_to_team(
            &pool,
            Uuid::parse_str(&team_id).unwrap(),
            Uuid::parse_str(&user_id).unwrap(),
        )
        .await
        .unwrap();
        team_id
    }
}

[sunli829]

thanks 🙂

Is it possible to make the version optional?

#[graphql(validator(uuid))] team_id: ID,
#[graphql(validator(uuid = 4))] user_id: ID,

[edbo]

I went with

#[graphql(validator(uuid))] team_id: ID,
#[graphql(validator(uuid_version = 4))] user_id: ID,

I couldn't find a simple way to have a proc arg accept a bool or an int but open to suggestions if there is a way.

[sunli829]

Do it like this

async-graphql/derive/src/args.rs

Line 49 in 89b48e2

impl FromMeta for DefaultValue {

[edbo]

@sunli829 Sorry for the delay and thanks so much for the pointer. Not sure why I didn't try just putting an enum in the option.

I've rebased to master so hopefully this is good to go now.