freeCodeCamp/guide/english/certifications/apis-and-microservices/basic-node-and-express/get-route-parameter-input-from-the-client/index.md

title

title
Get Route Parameter Input from the Client

Get Route Parameter Input from the Client

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Problem Explanation

If someone tells you to build a GET or POST endpoint you would achieve the same using app.get(...) or app.post(...) accordingly.

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Hints

Hint #1

In order to get route parameters from a POST request, the general format is as follows:

app.post("/:param1/:param2", (req, res) => {
  // Access the corresponding key in the req.params
  // object as defined in the endpoint
  var param1 = req.params.parameter1;
  // OR use destructuring to get multiple paramters
  var { param1, param2 } = req.params;
  // Send the req.params object as a JSON Response
  res.json(req.params);
});

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Solutions

Solution 1 (Click to Show/Hide)

app.get("/:word/echo", (req, res) => {
  const { word } = req.params;
  res.json({
    echo: word
  });
});