hswolff / dibs

dibs

an app for offering things up and letting people call dibs on it

Tech Used

• MongoDB 3.6's Change Streams
• Apollo GraphQL
  • Apollo Server
  • Apollo React
• React
• emotion

Development instructions

Setup

You'll need to have already installed

1. MongoDB 3.6+
2. Node 8+

Instantiate the database

mkdir db
mongod --port 27017 --dbpath $(pwd)/db --replSet rs0
# instantiate the replica set. only need to run this one time.
mongo --eval "rs.initiate()"

Install deps

npm install

Dev workflow

Start Mongo

npm run mongo

Keep the process open.

Start server and client

npm start

Features TODO

• Add spinner when a user creates a dib, and when a user claims a dib
• Location of Dib.
• Price/bounty of Dib.
• Auth with Google
• Real-time comments on a Dib
• Able to edit Dibs that you created.
• Able to un-claim a Dib if you're the creator of the dib.
• Steal more features from eBay.

dibs's Issues

application keeps crashing

I'm on the master branch, and the application keeps crashing when I run it:

Starting Webpack compilation...
Compiled successfully in 2637 ms.

The app is running at http://localhost:3000/

C:\Users\walrus2000\proj2\dibs\server\node_modules\mongodb\lib\utils.js:132
      throw err;
      ^
MongoError: cursor id 5749870846035818323 not found
    at C:\Users\walrus2000\proj2\dibs\server\node_modules\mongodb-core\lib\connection\pool.js:598:61
    at authenticateStragglers (C:\Users\walrus2000\proj2\dibs\server\node_modules\mongodb-core\lib\connection\pool.js:516:16)
    at Connection.messageHandler (C:\Users\walrus2000\proj2\dibs\server\node_modules\mongodb-core\lib\connection\pool.js:552:5)
    at emitMessageHandler (C:\Users\walrus2000\proj2\dibs\server\node_modules\mongodb-core\lib\connection\connection.js:309:10)
    at Socket.<anonymous> (C:\Users\walrus2000\proj2\dibs\server\node_modules\mongodb-core\lib\connection\connection.js:452:17)
    at Socket.emit (events.js:198:13)
    at addChunk (_stream_readable.js:288:12)
    at readableAddChunk (_stream_readable.js:269:11)
    at Socket.Readable.push (_stream_readable.js:224:10)
    at TCP.onStreamRead [as onread] (internal/stream_base_commons.js:94:17)
Emitted 'error' event at:
    at Cursor.<anonymous> (C:\Users\walrus2000\proj2\dibs\server\node_modules\mongodb\lib\change_stream.js:129:10)
    at Cursor.emit (events.js:198:13)
    at C:\Users\walrus2000\proj2\dibs\server\node_modules\mongodb\lib\cursor.js:1133:14
    at err (C:\Users\walrus2000\proj2\dibs\server\node_modules\mongodb\lib\utils.js:415:14)
    at executeCallback (C:\Users\walrus2000\proj2\dibs\server\node_modules\mongodb\lib\utils.js:404:25)
    at handleCallback (C:\Users\walrus2000\proj2\dibs\server\node_modules\mongodb\lib\utils.js:128:55)
    at C:\Users\walrus2000\proj2\dibs\server\node_modules\mongodb\lib\cursor.js:722:21
    at handleCallback (C:\Users\walrus2000\proj2\dibs\server\node_modules\mongodb-core\lib\cursor.js:199:5)
    at C:\Users\walrus2000\proj2\dibs\server\node_modules\mongodb-core\lib\cursor.js:712:23
    at queryCallback (C:\Users\walrus2000\proj2\dibs\server\node_modules\mongodb-core\lib\wireprotocol\3_2_support.js:213:21)
    at C:\Users\walrus2000\proj2\dibs\server\node_modules\mongodb-core\lib\connection\pool.js:544:18
    at process._tickCallback (internal/process/next_tick.js:61:11)
[nodemon] app crashed - waiting for file changes before starting...

It works fine for a couple minutes, and then crashes in the background. I'm on Windows 10.

$ mongo --version
MongoDB shell version v4.0.13