CODEWITHSUNDEEP
javascriptnode.jsexpress
mura1
mura1

Reputation: 472

Error when sending a request to the Postman

So I am fairly new to the backend. Anyway, I want to create an API that I can use in the front-end, the error I am facing when I try to send a request to the localhost:5000/elements Postman is giving me Error: connect ECONNREFUSED 127.0.0.1:5000 if someone could help me it would be awesome. Thanks

var fs=require('fs');
var data=fs.readFileSync('books.json');
var elements=JSON.parse(data);
const express = require("express");
const app = express();
const cors=require('cors');

const Port = 5000

app.listen(process.env.Port, () => console.log("Server Start at " + Port));

app.use(express.static('public'));
app.use(cors());
app.get('/elements',alldata);
function alldata(request,response)
{
    response.send(elements);
}
app.get('/elements/:element/',searchElement);
function searchElement(request,response)
{
    var word=request.params.element;
    word=word.charAt(0).toUpperCase()+word.slice(1).toLowerCase();
    console.log(word);
    console.log(elements[word]);
    if(elements[word])
    {
        var reply=elements[word];
        
    }
    else
    {
        var reply={
            status:"Not Found"
        }
    }
    console.log(reply.boil);
    response.send(reply);

}

Upvotes: 0

Views: 182

Answers (2)

Thomas Sablik
Thomas Sablik

Reputation: 16453

process.env.Port is unrelated to Port.

It's

app.listen(Port, () => console.log("Server Start at " + Port));

Upvotes: 1

Nicholas
Nicholas

Reputation: 2863

This problem usually happens if you forget to run npm start.

Either way, I recommend moving the app.listen to the bottom of the code. It helps with readability, and it will mount all of code before running the Express server.

Your process.env.Port is also undefined. Change it to const port = process.env.Port || 5000 so you can get a fallback value. Change it also in the app.listen.

Then, define allData and searchElement so they are located before the app.get('/elements'). Finally, after you have done all of this, make sure that the request type in Postman is GET.

Upvotes: 1

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