mirror of
https://github.com/Ratstail91/sineQL.git
synced 2025-11-29 02:34:28 +11:00
Kayne Ruse
128a42aaa6
it's because the query parser is impossible to understand, and the handlers are too long for this to be usable. It's a nice idea, but I can't do this while drinking.
54 lines
1.3 KiB
JavaScript
54 lines
1.3 KiB
JavaScript
const buildTypeGraph = require('./build-type-graph');
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const parseInput = require('./parse-input');
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const parseQuery = require('./parse-query');
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//the main function to be returned (sineQL())
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const sineQL = (schema, handler, options = {}) => {
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let typeGraph;
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try {
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typeGraph = buildTypeGraph(schema, options);
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}
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catch(e) {
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console.log('Type Graph Error:', e);
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return null;
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}
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//the receiving function (sine()) - this will be called multiple times
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return async (reqBody) => {
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try {
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//parse the query
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const tokens = parseInput(reqBody, true, options);
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let pos = 0;
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switch(tokens[pos]) {
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//check for keywords
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case 'create':
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case 'update':
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case 'delete':
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return [501, 'Keyword not implemented: ' + tokens[pos]];
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//TODO: implement these keywords
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break;
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//no leading keyword - regular query
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default:
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const [result, endPos] = await parseQuery(handler, tokens, pos, typeGraph);
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//reject the request, despite finishing processing it
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if (tokens[endPos]) {
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throw 'Unexpected data found at the end of the token list (found ' + tokens[endPos] + ')';
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}
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return [200, result];
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}
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}
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catch(e) {
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console.log('Error:', e);
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return [400, e.stack || e];
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}
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};
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};
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//return to the caller
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module.exports = sineQL;
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