@GraphQLDataSource

Directive Definition
directive @GraphQLDataSource (
    """
    the host of the origin
    """
    host: String!
    """
    the url of the origin
    """
    url: String!
    """
    the HTTP method the client should use for the request, defaults to GET
    """
    method: HTTP_METHOD = POST
    """
    parameters
    """
    params: [Parameter]
) on FIELD_DEFINITION

Example usage
type Query {
    country(code: String!): Country
        @GraphQLDataSource(
            host: "countries.trevorblades.com"
            url: "/"
            field: "country"
            params: [
                {
                    name: "code"
                    sourceKind: FIELD_ARGUMENTS
                    sourceName: "code"
                    variableType: "String!"
                }
            ]
        )
}
​
type Country {
    code: String
    name: String
    native: String
    phone: String
    continent: Continent
    currency: String
    languages: [Language]
    emoji: String
    emojiU: String
    coordinates: [Coordinates]
    @HttpJsonDataSource(
        host: "locationiq.com"
        url: "/v1/search_sandbox.php?format=json&q={{ .name }}&accept-language=en"
        params: [
            {
                name: "name"
                sourceKind: OBJECT_VARIABLE_ARGUMENT
                sourceName: "name"
                variableType: "String"
            }
        ]
    )
}

Example Query
{
    country(code: "DE") {
        code
        name
    }
}

Example Query
{
    country(code: "DE") {
        code
        name
    }
}