@HttpJsonDataSource

Generates a resolver for a HTTP based Data Source which returns JSON.

Directive Definition
directive @HttpJsonDataSource (
    """
    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 = GET
    """
    parameters
    """
    params: [Parameter]
) on FIELD_DEFINITION
This directive lets you define how to fetch data for the attached field.
Example usage
type Query {
    post(id: Int!): JSONPlaceholderPost
    @HttpJsonDataSource(
        host: "jsonplaceholder.typicode.com"
        url: "/posts/{{ .id }}"
        params: [
            {
                name: "id"
                sourceKind: FIELD_ARGUMENTS
                sourceName: "id"
                variableType: "Int!"
            }
        ]
    )
}
Example Query
{
    post(id: 1) {
        id
        name
    }
}
This query will internally resolve the following URL:
https://jsonplaceholder.typicode.com/posts/1
The field argument with name "id" will be used to "render" the url template using golang templating syntax.

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Last updated 1 year ago