The package @ts-stack/body-parser is a fork of body-parser – the native ExpressJS package. It is written in TypeScript in ESM format, without support for older versions of Node.js < v20.6.0. To install it, run the following command:
This package parses the body of an HTTP request that has the following types: JSON, Raw, Text, URL-encoded. You can use it as follows:
import { getJsonParser } from ‘@ts-stack/body-parser‘;
const jsonParser = getJsonParser({ limit: ‘1kb‘ });
http.createServer(async function (req, res) {
try {
const body = await jsonParser(req, req.headers);
res.statusCode = 200;
res.setHeader(‘Content-Type‘, ‘text/plain‘)
res.write(‘you posted:n‘);
res.end(JSON.stringify(body));
} catch (err: any) {
// handling an error
}
});
Alternatively, you can use the BodyParserGroup helper. It is designed for cases when you do not know which parser is needed for a specific route. When creating an instance of the BodyParserGroup class, you can pass options for the corresponding parsers, after which you can use the parse method as follows:
const bodyParserGroup = new BodyParserGroup({
jsonOptions: config.jsonOptions,
textOptions: config.textOptions,
urlencodedOptions: config.urlencodedOptions,
rawOptions: config.rawOptions,
});
const body = await bodyParserGroup.parse(req, req.headers, {});
