@medusajs/utils
Version:
Medusa utilities functions shared by Medusa core and Modules
36 lines • 1.51 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.extractRelationsFromGQL = extractRelationsFromGQL;
const graphql_1 = require("graphql");
/**
* Extracts only the relation fields from the GraphQL type map.
* @param {Map<string, any>} typeMap - The GraphQL schema TypeMap.
* @returns {Map<string, Map<string, string>>} A map where each key is an entity name, and the values are a map of relation fields and their corresponding entity type.
*/
function extractRelationsFromGQL(typeMap) {
const relationMap = new Map();
// Extract the actual type
const getBaseType = (type) => {
if ((0, graphql_1.isNonNullType)(type) || (0, graphql_1.isListType)(type)) {
return getBaseType(type.ofType);
}
return type;
};
for (const [typeName, graphqlType] of Object.entries(typeMap)) {
if (!(0, graphql_1.isObjectType)(graphqlType)) {
continue;
}
const fields = graphqlType.getFields();
const entityRelations = new Map();
for (const [fieldName, fieldConfig] of Object.entries(fields)) {
const fieldType = getBaseType(fieldConfig.type);
// only add relation fields
if ((0, graphql_1.isObjectType)(fieldType)) {
entityRelations.set(fieldName, fieldType.name);
}
}
relationMap.set(typeName, entityRelations);
}
return relationMap;
}
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