req.params not giving anything in express nodejs-CodePudding

I am trying to use the following code to get Id in the url. The problem is that req.params is not giving anything from the route.

app.get("/getAllParcels/:Id",(req,res) => {
        custId = req.params.Id;
        res.send('this is parcel with id:', custId);
});

CodePudding user response：

The Express version of res.send(), only takes one argument so when you do this:

app.get("/getAllParcels/:Id",(req,res) => {
        custId = req.params.Id;
        res.send('this is parcel with id:', custId);
});

it's only going to do this (only paying attention to the first argument):

res.send('this is parcel with id:');

Instead, change your code to this:

app.get("/getAllParcels/:Id",(req,res) => {
    const custId = req.params.Id;
    res.send(`this is parcel with id: ${custId}`);  
});

Note, this properly declares the variable custId using const and it uses a template string (with backquotes) to efficiently incorporate the custId.

CodePudding user response：

First of all, you are missing Identifiers like let and const. Another thing, you have to now send the data with status.

Solution:

    app.get("/getAllParcels/:Id", (req, res) => {
      const custId = req.params.Id;
      res.send(`this is parcel with id: ${custId}`);
    });