One of the three identical paths in Node.JS is experiencing issues

I'm brand new to Node.js and currently working on creating a backend api for a project. I have 3 routes in my application: societies, users, and emails.

   //module for email functionality
   emailsModule = require('./api/routes/emails')(connection);
   const emailsRoutes = emailsModule.router;
   app.use('/emails', emailsRoutes);

   //module for societies
   societyModule = require('./api/routes/societies')(connection);
   const societyRoutes = societyModule.router;
   app.use('/societies', societyRoutes);

   //module for users
   usersModule = require('./api/routes/users')(connection);
   const usersRoutes = usersModule.router;
   app.use('/users', usersRoutes);

The societies and emails modules are functional, but the emails module is not working properly. I've tried different approaches to fix it, but Postman output keeps showing "Cannot GET /emails/". Here's my module.exports function:

module.exports = function(connection) {
    module.connection = connection;
    sql = connection;
    module.router = router;
    console.log("sacramento");    //testing
    return module;
}

An example route is

router.get("/:email"), (req, res) => {
    var credentialCheck = new sql.Request();
    credentialCheck.input("email", sql.VarChar, req.query.email);
    credentialCheck.input("password", sql.VarChar, req.body.password);
    credentialCheck.execute("checkSocietyCredentials",
    (err, result) => {
        if ( err ) {
            res.status(200).send({
                error: err
            });
        }
        else {
            res.status(200).send(
               {
                   isEmailValid    : result.recordsets[0][0],
                   isPasswordValid : result.recordsets[0][1]
               } 
            );
        }
    });
}

It could be a minor mistake like a typo in a path. The URL I'm using for this module is

http://localhost:3000/emails/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="38075d55595154055d40595548545d785f55595154165b5755">[email protected]</a>
. I would appreciate any help in finding the issue with my script.

Answer №1

There are several issues that need attention and correction.

The following syntax is incorrect:

router.get("/:email"), (req, res) => {

It should be corrected to:

router.get("/:email", (req, res) => { 

Furthermore, make sure to add ) at the end of the function's code.

You were essentially defining a route for:

router.get("/:email")

without any route handler. Additionally, you were declaring an arrow function without utilizing it as intended. If this code was able to run without errors, it may have been due to a typo skewing your logic (a common occurrence in dynamically-typed languages).


In addition, in the lines:

app.use('/emails', emailsRoutes)

and

router.get("/:email")

The requested route should be /emails/someEmail, where someEmail represents the desired value for the :email parameter. Proper URL encoding is necessary if using an actual email address.


Moreover, within the /:email route handler, referencing req.body.password will not yield the expected results. For a GET request, req.body remains empty and is typically utilized with POST or PUT requests after employing suitable middleware to parse and read the body into req.body.

If sending both an email and password to this route is the intention, consider making it a POST request where both values are transmitted within the body.

Answer №2

The reason for this issue is that you have specified an email route parameter within the sub-route of /emails.

As a result, the expected URL should resemble something like this:

http://localhost:3000/emails/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="f5908d9498859990b59298949c99db969a98">[email protected]</a>
.

You have two choices to resolve this:

  1. Modify the route definition to router.get("/", ...)
  2. Keep the current route definition as router.get("/:email", ...), adjust the URL as shown above, and access the email using req.params.email

I assume you are utilizing express. To learn more about route parameters, refer to the routing documentation available here.

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