Edge templating express TypeError

Question

Im using edge template engine in my application node.js and I getting back the error; TypeError: app.use() requires middleware function

this is my code the index.js

const path = require('path');
const express = require('express');
const expressEdge = require('express-edge');




const app = new express();

app.use(express.static('public'));
app.use(expressEdge);
app.set('views', __dirname + '/views');


app.get('/', (req, res) => {
  res.render('index');
});
app.get('/about',(req,res)=>{
  res.sendFile(path.resolve(__dirname,'pages/about.html'));
});
app.get('/post',(req,res)=>{
  res.sendFile(path.resolve(__dirname,'pages/post.html'));
});

app.get('/contact',(req,res)=>{
  res.sendFile(path.resolve(__dirname,'pages/contact.html'));
});


app.listen(4000,() =>{
  console.log('App listening on port 4000')
});

This is how I set up the folder in my application enter image description here

There are many of questions on SO that regards TypeError with app.use(). Why are they not relevant to you? As far as I can tell app.use() takes 3 arguments and you only give it one.[link1](https://stackoverflow.com/questions/32883626/typeerror-app-use-requires-middleware-functions), [link2](https://stackoverflow.com/questions/31496100/cannot-app-usemulter-requires-middleware-function-error) — Kent Kostelac, Feb 20 '20 at 01:42
Does this answer your question? [Cannot app.use(multer). "requires middleware function" error](https://stackoverflow.com/questions/31496100/cannot-app-usemulter-requires-middleware-function-error) — Kent Kostelac, Feb 20 '20 at 01:42

score 0 · Accepted Answer · answered Feb 20 '20 at 09:22

From the docs, you are supposed to pass expressEdge.engine as the middleware to app.use not the entire expressEdge object. So this is what your index.js code should be like:

const path = require('path');
const express = require('express');
// Use the config method to configure express-edge if needed
const { config, engine } = require('express-edge');

const app = new express();

app.use(express.static('public'));
// Pass in the engine not the entire express-edge object
app.use(engine);
app.set('views', __dirname + '/views');


app.get('/', (req, res) => {
  res.render('index');
});
app.get('/about',(req,res)=>{
  res.sendFile(path.resolve(__dirname,'pages/about.html'));
});
app.get('/post',(req,res)=>{
  res.sendFile(path.resolve(__dirname,'pages/post.html'));
});

app.get('/contact',(req,res)=>{
  res.sendFile(path.resolve(__dirname,'pages/contact.html'));
});


app.listen(4000,() =>{
  console.log('App listening on port 4000')
});

More details in the usage documentation here.

Edge templating express TypeError

1 Answers1