@graphql-tools/merge
Version:
A set of utils for faster development of GraphQL tools
41 lines (40 loc) • 1.65 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.mergeSchemaDefs = exports.DEFAULT_OPERATION_TYPE_NAME_MAP = void 0;
const graphql_1 = require("graphql");
const directives_js_1 = require("./directives.js");
exports.DEFAULT_OPERATION_TYPE_NAME_MAP = {
query: 'Query',
mutation: 'Mutation',
subscription: 'Subscription',
};
function mergeOperationTypes(opNodeList = [], existingOpNodeList = []) {
const finalOpNodeList = [];
for (const opNodeType in exports.DEFAULT_OPERATION_TYPE_NAME_MAP) {
const opNode = opNodeList.find(n => n.operation === opNodeType) ||
existingOpNodeList.find(n => n.operation === opNodeType);
if (opNode) {
finalOpNodeList.push(opNode);
}
}
return finalOpNodeList;
}
function mergeSchemaDefs(node, existingNode, config, directives) {
if (existingNode) {
return {
kind: node.kind === graphql_1.Kind.SCHEMA_DEFINITION || existingNode.kind === graphql_1.Kind.SCHEMA_DEFINITION
? graphql_1.Kind.SCHEMA_DEFINITION
: graphql_1.Kind.SCHEMA_EXTENSION,
description: node['description'] || existingNode['description'],
directives: (0, directives_js_1.mergeDirectives)(node.directives, existingNode.directives, config, directives),
operationTypes: mergeOperationTypes(node.operationTypes, existingNode.operationTypes),
};
}
return (config?.convertExtensions
? {
...node,
kind: graphql_1.Kind.SCHEMA_DEFINITION,
}
: node);
}
exports.mergeSchemaDefs = mergeSchemaDefs;