@theguild/federation-composition
Version:
Open Source Composition library for Apollo Federation
25 lines (24 loc) • 1.05 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.KnownRootTypeRule = KnownRootTypeRule;
const graphql_1 = require("graphql");
function KnownRootTypeRule(context) {
const { definitions } = context.getDocument();
const typeNames = new Set(definitions.filter(isTypeDefinitionOrExtensionNode).map(def => def.name.value));
return {
SchemaDefinition(node) {
node.operationTypes.forEach(operationType => {
if (!typeNames.has(operationType.type.name.value)) {
context.reportError(new graphql_1.GraphQLError(`Cannot set schema ${operationType.operation} root to unknown type ${operationType.type.name.value}`, {
extensions: {
code: 'INVALID_GRAPHQL',
},
}));
}
});
},
};
}
function isTypeDefinitionOrExtensionNode(node) {
return (0, graphql_1.isTypeDefinitionNode)(node) || (0, graphql_1.isTypeExtensionNode)(node);
}