@graphql-yoga/plugin-defer-stream
Version:
Defer/Stream plugin for GraphQL Yoga.
36 lines (35 loc) • 1.99 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.DeferStreamDirectiveOnRootFieldRule = void 0;
const utils_1 = require("@graphql-tools/utils");
/**
* Stream directive on list field
*
* A GraphQL document is only valid if defer directives are not used on root mutation or subscription types.
*/
function DeferStreamDirectiveOnRootFieldRule(context) {
return {
Directive(node) {
const mutationType = context.getSchema().getMutationType();
const subscriptionType = context.getSchema().getSubscriptionType();
const parentType = context.getParentType();
if (parentType && node.name.value === utils_1.GraphQLDeferDirective.name) {
if (mutationType && parentType === mutationType) {
context.reportError((0, utils_1.createGraphQLError)(`Defer directive cannot be used on root mutation type "${parentType.name}".`, { nodes: node }));
}
if (subscriptionType && parentType === subscriptionType) {
context.reportError((0, utils_1.createGraphQLError)(`Defer directive cannot be used on root subscription type "${parentType.name}".`, { nodes: node }));
}
}
if (parentType && node.name.value === utils_1.GraphQLStreamDirective.name) {
if (mutationType && parentType === mutationType) {
context.reportError((0, utils_1.createGraphQLError)(`Stream directive cannot be used on root mutation type "${parentType.name}".`, { nodes: node }));
}
if (subscriptionType && parentType === subscriptionType) {
context.reportError((0, utils_1.createGraphQLError)(`Stream directive cannot be used on root subscription type "${parentType.name}".`, { nodes: node }));
}
}
},
};
}
exports.DeferStreamDirectiveOnRootFieldRule = DeferStreamDirectiveOnRootFieldRule;