BT_2021

Bangalore Torpedo 2021 Hackathon Code Repo

Instructions To Run/Deploy Backend

Prerequisite

1. Node Version: v14.17.2 : https://nodejs.org/en/download/
2. Add .env in project root dir : Contact developers for this
3. Install Mongodb. No extra configurations required : https://www.mongodb.com/try/download/community

How to Run Backend

To run backend :

1. npm install
2. node app.js

APIs

1. Upload File: POST URL: http://localhost:8080/nature/upload-file

   {
    "artName":"New Art Name",
    "artDescription": "Description of this art",
    "file":"file goes here"
   }
   

   Unce uploaded, this async API does following operations:

   1. The api calls a python script, gets processed filePath (art output)
   2. Uploads the art and its metadata to IPFS
   3. The returned ipfs url is used to create a new NFT in Ethereum blockchain ( Rinkeby Testnet)
   4. Each new NFT created can be tracked in Opensea market here: https://testnets.opensea.io/collection/naturenft-v4

2. Get All Uploaded Data: GET URL: http://localhost:8080/nature/sattvas Example Output:

    [
        {
            "_id": "60e17e480e65c25ac0694300",
            "artName": "N1",
            "artDescription": "N2",
            "originalFileURL": "https://gateway.pinata.cloud/ipfs/QmYBMufaYaL1s7mJhiftjjoZtsPqhTrKqkBLpdgEhK3hv8",
            "artFileURL": "https://gateway.pinata.cloud/ipfs/QmYBMufaYaL1s7mJhiftjjoZtsPqhTrKqkBLpdgEhK3hv8"
        }
    ]
   

How To Compile and Deploy Contract

This is not a necessary step, unless you make modification and deploy new contract. From project root dir do the following things:

1. Install Truffle cli: npm install -g truffle
2. To compile: truffle compile
3. Migration:

• Deploying to Ganache: truffle migrate

• Deploying to rinkeby_local:

  1. Run a local light Geth node with following command:

  geth --rinkeby --syncmode "light" --cache 2048 --rpc --rpcapi db,eth,net,web3,personal --allow-insecure-unlock --unlock="0xddb44367f29ba53489d527247b991f32cda5526f"

  3. To deploy run: truffle console --network rinkeby_local

• Deploying to rinkeby_infura:

  1. To deploy to rinkeby using infura place .env in root project
  2. To deploy run: truffle migrate --network rinkeby_infura --reset --compile-all

How to Run AI-Camera

• Download yolov3.weights file which contains the weights of pre-trained YOLOV3 model and should be placed in the AI-Camera & TwitterFeed/weights/ directory. You can easily download the weights using the link https://pjreddie.com/darknet/yolo/

• Run python run_ai_smart_cam.py

How to Run TwitterFeed

• Setup your twitter api and get all the neccessary details like api_key secret_key etc
• Run python twitter_feeds.py