@apollo/federation
Version:
Apollo Federation Utilities
49 lines • 2.51 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.UniqueUnionTypes = void 0;
const graphql_1 = require("graphql");
const lodash_xorby_1 = __importDefault(require("lodash.xorby"));
const utils_1 = require("../../utils");
const uniqueTypeNamesWithFields_1 = require("./uniqueTypeNamesWithFields");
function UniqueUnionTypes(context) {
const knownTypes = Object.create(null);
const schema = context.getSchema();
return {
UnionTypeDefinition: validateUnionTypes,
};
function validateUnionTypes(node) {
const typeName = node.name.value;
const typeFromSchema = schema && schema.getType(typeName);
const typeNodeFromSchema = typeFromSchema &&
typeFromSchema.astNode;
const typeNodeFromDefs = knownTypes[typeName];
const duplicateTypeNode = typeNodeFromSchema || typeNodeFromDefs;
if (duplicateTypeNode) {
const unionDiff = (0, lodash_xorby_1.default)(node.types, duplicateTypeNode.types, 'name.value');
const diffLength = unionDiff.length;
if (diffLength > 0) {
context.reportError((0, utils_1.errorWithCode)('VALUE_TYPE_UNION_TYPES_MISMATCH', `${(0, utils_1.logServiceAndType)(duplicateTypeNode.serviceName, typeName)}The union \`${typeName}\` is defined in services \`${duplicateTypeNode.serviceName}\` and \`${node.serviceName}\`, however their types do not match. Union types with the same name must also consist of identical types. The type${diffLength > 1 ? 's' : ''} ${unionDiff.map(diffEntry => diffEntry.name.value).join(', ')} ${diffLength > 1 ? 'are' : 'is'} mismatched.`, [node, duplicateTypeNode]));
}
return false;
}
if (typeFromSchema) {
context.reportError(new graphql_1.GraphQLError((0, uniqueTypeNamesWithFields_1.existedTypeNameMessage)(typeName), node.name));
return;
}
if (knownTypes[typeName]) {
context.reportError(new graphql_1.GraphQLError((0, uniqueTypeNamesWithFields_1.duplicateTypeNameMessage)(typeName), [
knownTypes[typeName],
node.name,
]));
}
else {
knownTypes[typeName] = node;
}
return false;
}
}
exports.UniqueUnionTypes = UniqueUnionTypes;
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