GraphQL Schema Not support <> using @dgraph(pred: "<other language>")

[zhaolin-st]

type Call {
    from: phone_number @hasInverse(field: calling) @dgraph(pred: "<FROM>")
    to: phone_number @hasInverse(field:called) 
}

Using graphql to update schema with @dgarph would not work while muation

Dgraph Schema would generate a "" predicate ,but there should not be "<>" in real schema data

[MichelDiz]

Angular brackets are exclusive for GraphQL+-, there's no support in GraphQL Specs tho. So don't use <> in your GraphQL schema.

Cheers.

[zhaolin-st]

Angular brackets are exclusive for GraphQL+-, there's no support in GraphQL Specs tho. So don't use <> in your GraphQL schema.

Cheers.

@draph（pred: "***"） dont't support other language if don't use "<>"

[MichelDiz]

Sorry, but what do you mean by support other language? the edge is UID type. There's no language support for UID, only Strings.

[MichelDiz]

Oh, you mean i18n in predicates. Not sure if GraphQL specs support i18n. I gonna check.

PS. You used the "FROM", you should use a nonlatin example to make it obvious.

[MichelDiz]

I wasn't able to find anything about i18n predicates in https://spec.graphql.org/
I have found some examples with i18n in the data, not the predicate see https://codesandbox.io/s/graphql-i18n-demo-znxvd

@MichaelJCompton is there support for languages in predicates in GraphQL?

[zhaolin-st]

https://graphql.dgraph.io/docs/dgraph/
I show "@dgraph" in this page about "GraphQL on Existing Dgraph"

Dgraph also allows type and edge names that aren’t valid in GraphQL, so, often, you’ll need to expose valid GraphQL names. Dgraph admits special characters and even different languages (see here), while the GraphQL Spec requires that type and field (predicate) names are generated from /[_A-Za-z][_0-9A-Za-z]*/.

By default, Dgraph generates a new predicate for each field in a GraphQL type. The name of the generated predicate is composed of the type name followed by a dot . and ending with the field name. Therefore, two different types with fields of the same name will turn out to be different Dgraph predicates and can have different indexes.

Because GraphQL Spec requires that type and field (predicate) names are generated from /[_A-Za-z][_0-9A-Za-z]/.
Can I use @dgraph(pred: "**") to save predicate and type in Dgraph with other language?

[MichaelJCompton]

Hi,

This should work to allow you to map GraphQL compliant names down to names in other languages.

I'll arrange this to be looked at in our next sprint and we'll patch it for 20.03.2 and master.