@stuntman/shared/dist/gqlParser.js

Stuntman - HTTP proxy / mock shared types and utils

import { logger } from './logger.js';
export const naiveGQLParser = (body) => {
    // TODO consider real parser :P
    try {
        let json = undefined;
        try {
            json = JSON.parse(Buffer.isBuffer(body) ? body.toString('utf-8') : body);
        }
        catch {
            // ignore
        }
        if (!json?.query && !json?.operationName) {
            return undefined;
        }
        const trimmed = json.query.trim();
        if (!/^(query|mutation)\s+/.test(trimmed) || !/[{}]/.test(trimmed)) {
            throw new Error('invalid query');
        }
        const lines = trimmed
            .replace(/{/g, '{\n')
            .split('\n')
            .map((l) => l.replace(/^\s+/g, '').trim())
            .filter((l) => !!l);
        if (/^query /.test(lines[0])) {
            json.type = 'query';
        }
        else if (/^mutation /.test(lines[0])) {
            json.type = 'mutation';
        }
        if (json.operationName && lines[1]) {
            json.methodName = lines[1].split('(')[0].split('{')[0];
        }
        return json;
    }
    catch (error) {
        logger.debug(error, 'unable to parse GQL');
    }
    return undefined;
};
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