尝试在 Heroku 上托管我的 rest api (node.js) 时如何解决此问题？

Question

https://github.com/pickypickleapp/herokutest123

Hello I just started learning about Rest API's and I am trying to make my own one and host/upload it on heroku. I get this error when trying to host. I've tried many solutions and most seem to say its Procfile related but it doesn't seem to be working for me. Any suggestions?

Answer 1

If you see a little above your message, you'll probably notice you missed the dotenv/config package, referenced in server.js (line 6). Otherwise, committing the node_module is not good practice, instead, commit the file package-lock.json . It will ensure that the proper packages, meaning the right code according to the version, will be installed on heroku.

npm install --save dotenv

Answer 2

First of all you need to understand what happens when you load your website to Heroku. It looks for package.json to install dependencies. When you run npm install on your machine, that happens only on your machine. Heroku is a different machine, so it needs to install everything too. To see how it happens do the following on your machine.

1. Remove node_modules rm -rf node_modules

2. Run npm install

3. Go to localhost and see what happens.

If something is wrong you will see an error in your node console.

Also when you put your website on hosting service you do not need to use nodemon package, as it is used in development only. Instead of this you want to use pm2 to monitor your app performance and automatically reload in case it crashes.