graphql-yoga/esm/plugins/resultProcessor/stringify.js

<div align="center"><img src="./website/public/cover.png" width="720" /></div>

import { isGraphQLError, createGraphQLError } from '../../error.js';
// JSON stringifier that adjusts the result error extensions while serialising
export function jsonStringifyResult(result) {
    return JSON.stringify(Array.isArray(result)
        ? result.map(omitInternalsFromResultErrors)
        : omitInternalsFromResultErrors(result));
}
function omitInternalsFromResultErrors(result) {
    return {
        ...result,
        errors: result.errors?.map(omitInternalsFromError),
    };
}
function omitInternalsFromError(err) {
    if (isGraphQLError(err)) {
        // eslint-disable-next-line @typescript-eslint/no-unused-vars -- TS should check for unused vars instead
        const { http, unexpected, ...extensions } = err.extensions;
        return createGraphQLError(err.message, {
            nodes: err.nodes,
            source: err.source,
            positions: err.positions,
            path: err.path,
            originalError: omitInternalsFromError(err.originalError),
            extensions: Object.keys(extensions).length ? extensions : undefined,
        });
    }
    return err;
}