libs/core/graphql/src/fragments/build-fragment-definition.ts
import { DocumentNode } from 'graphql';
/**
* Builds a string of fragment definitions that can be interpolated into a GraphQL query.
* Each definition is separated by a newline character: '\n'.
*
* @param documents A list of GraphQL documents that should only contain fragments.
*/
export const daffBuildFragmentDefinition = (...documents: DocumentNode[]): string =>
documents.reduce((acc, fragment) => acc.concat(`${fragment.loc.source.body}\n`), '');