string ID types?

[buchanae]

Would it be possible to generate code using string as the underlying type of GQL ID? Currently it is generated as int, which is more cumbersome for my databases.

[vektah]

They should be already?

eg https://github.com/vektah/gqlgen/blob/master/example/chat/schema.graphql#L7

type Message {
    id: ID!
    text: String!
    createdBy: String!
    createdAt: Time!
}

results in
https://github.com/vektah/gqlgen/blob/master/example/chat/models_gen.go#L10

type Message struct {
	ID        string
	Text      string
	CreatedBy string
	CreatedAt time.Time
}

[ereyes01]

Yes, as a matter of fact I was trying to do the opposite- use an int as the ID type in my own mapped type, but gqlgen fails with this error:

type mismatch on Org.id, expected string got int

But it looks like this is the correct behavior, according to the graphql docs:

ID: The ID scalar type represents a unique identifier, often used to refetch an object or as the key for a cache. The ID type is serialized in the same way as a String; however, defining it as an ID signifies that it is not intended to be human‐readable.

[vektah]

You could define your own ID type if you want to use ints, see the example.