@graphql-tools/utils/esm/mergeIncrementalResult.js

Common package containing utils and types for GraphQL tools

import { dset } from 'dset/merge';
export function mergeIncrementalResult({ incrementalResult, executionResult, }) {
    if (incrementalResult.path) {
        const path = ['data', ...incrementalResult.path];
        executionResult.data = executionResult.data || {};
        if (incrementalResult.items) {
            for (const item of incrementalResult.items) {
                dset(executionResult, path, item);
            }
        }
        if (incrementalResult.data) {
            dset(executionResult, ['data', ...incrementalResult.path], incrementalResult.data);
        }
    }
    else if (incrementalResult.data) {
        executionResult.data = executionResult.data || {};
        Object.assign(executionResult.data, incrementalResult.data);
    }
    if (incrementalResult.errors) {
        executionResult.errors = executionResult.errors || [];
        executionResult.errors.push(...executionResult.errors);
    }
    if (incrementalResult.incremental) {
        incrementalResult.incremental.forEach(incrementalSubResult => {
            mergeIncrementalResult({
                incrementalResult: incrementalSubResult,
                executionResult,
            });
        });
    }
}