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JavaScript REST APIs with Express Create, Read, Update, Delete Create a New Quote

Posted by Akeem Ayoade
Akeem Ayoade
6,750 Points

getting "TypeError: Cannot read property 'quote' of undefined" The terminal shows the error at app.js 22:23

const express = require('express');
const { process_params } = require('express/lib/router');
const app = express();

const records = require('./records');

app.use(express.json());

// Send a GET request to /quotes to READ a list of quotes 
app.get('/quotes',  async (req, res)=> { 
  const quotes =  await records.getQuotes();
  res.json(quotes);
});
// Send a GET request to /quotes/:id to READ(view) a quote
app.get('/quotes/:id', async (req, res)=> {
   const quote =  await records.getQuote(req.params.id);
    res.json(quote);
});
// Send a POST request to /quotes to CREATE a new quote 
app.post('/quotes', (res, req)=> {
   const quote = records.createQuote({               /**TERMINAL SHOWS ERROR HERE*/
      quote: req.body.quote,
      author: req.body.author
   });
   res.json(quote);
});
// Send a PUT request to /quotes/:id to UPDATE a quote
// Send a DELETE request to /quotes/:id to DELETE a quote
// Send a GET request to /quotes/quotes/random to READ (view) random quote

app.listen(3000, () => console.log('Quote API listening on port 3000!'));

TypeError: Cannot read property 'quote' of undefined
    at /Users/akeemayoade/Downloads/rest_apis_express_projectfiles/S1V4_starter_files/app.js:22:23
    at Layer.handle [as handle_request] (/Users/akeemayoade/Downloads/rest_apis_express_projectfiles/S1V4_starter_files/node_modules/express/lib/router/layer.js:95:5)
    at next (/Users/akeemayoade/Downloads/rest_apis_express_projectfiles/S1V4_starter_files/node_modules/express/lib/router/route.js:137:13)
    at Route.dispatch (/Users/akeemayoade/Downloads/rest_apis_express_projectfiles/S1V4_starter_files/node_modules/express/lib/router/route.js:112:3)
    at Layer.handle [as handle_request] (/Users/akeemayoade/Downloads/rest_apis_express_projectfiles/S1V4_starter_files/node_modules/express/lib/router/layer.js:95:5)
    at /Users/akeemayoade/Downloads/rest_apis_express_projectfiles/S1V4_starter_files/node_modules/express/lib/router/index.js:281:22
    at Function.process_params (/Users/akeemayoade/Downloads/rest_apis_express_projectfiles/S1V4_starter_files/node_modules/express/lib/router/index.js:341:12)
    at next (/Users/akeemayoade/Downloads/rest_apis_express_projectfiles/S1V4_starter_files/node_modules/express/lib/router/index.js:275:10)
    at /Users/akeemayoade/Downloads/rest_apis_express_projectfiles/S1V4_starter_files/node_modules/body-parser/lib/read.js:130:5
    at invokeCallback (/Users/akeemayoade/Downloads/rest_apis_express_projectfiles/S1V4_starter_files/node_modules/raw-body/index.js:224:16)
Akeem Ayoade
Akeem Ayoade
6,750 Points

Error only occurs when client sends POST request (using the thunder client for testing api)

1 Answer

Rohald van Merode
seal-mask
STAFF
.a{fill-rule:evenodd;}techdegree
Rohald van Merode
Treehouse Staff
Rohald van Merode
.a{fill-rule:evenodd;}techdegree
Rohald van Merode
Treehouse Staff

Hi Akeem Ayoade 👋

Looks like there's an issue with the order of your req and res parameters. switching those around should fix your issue 🙂

app.post('/quotes', (req, res) => {
Akeem Ayoade
Akeem Ayoade
6,750 Points

That was it, thank you!