write a function that, given a URL of an http get request, return to client a key:value structure of the parameters in the URL.

Question

javascript · Accepted Answer

// random example
app.get('/expressions/:id', (req, res, next) => {
  console.log(req.params); ---> this is the answer
  const foundExpression = getElementById(req.params.id, expressions);
  if (foundExpression) {
    res.send(foundExpression);
  } else {
    res.status(404).send();
  }
});

Avishay · Answer

// assuming the URL is valid

function myUrlParser(url){

        const result = {};
        let urlParts = url.split('?');

        if ( urlParts[1] === undefined ) {
            return 'No parameters in the given URL.';
        }

        const urlPairs = urlParts[1].split('&');

        urlPairs.forEach(pair => {
            const parts = pair.split('=');
            result[parts[0]] = parts[1];
        });

        return result;
    }

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