Agristore

Agristore is a python based program which aims to store greenhouse data using ethereum blockchain. Please follow the steps to setup the program

Required programs

The entire program is developed on windows, therefore all programs below are installed on windows platform

Install node.js (v14.18.1), the website can be found: https://nodejs.org/en/

Install Ganache(v2.5.4), the website can be found:

https://trufflesuite.com/ganache/

Install Ganache-cli (v6.12.2, ganache-core: 2.13.2) for commandline style operations for ganache: ``` Using npm:

npm install -g ganache-cli

Using yarn:

yarn global add ganache-cli ```

Install conda for windows to manage other packages: https://www.anaconda.com/products/individual and use conda envirment file to install conda envirement with the correct packages: conda env create -f blockchain.yml

Setup

Visual studio code is used for development of this program. A .env file needs to be created for sensitive data such as private keys and passwords in order for brownie config file to work. An example can be: export PRIVATE_KEY = xxxxxxxxxxxxxxxxxxxxxxxxxxxx export WEB3_INFURA_PROJECT_ID = xxxxxxxxxxxxxxxxxxxxxxxxxxx export ETHERSCAN_TOKEN = xxxxxxxxxxxxxxxxxxxxxxxxxxxxx

First

Download the correct version of solidity in visual studio code by pressing shift+control+p to open the search bar. Select "Solidity: change global compiler version" and install version 0.8.10. Select the correct python envirement with correct package by pressing shift+control+p and select "Python x.x.xx 64-bit('Blockchainv2':conda).

Second

Run the correct conda interpreter by click on run for a random python script then type in the console: brownie compile to compile the contract and download its required packages

Third

Currently using dropbox as cloud storage, therefore a dropbox token needs to be required, follow the instrustion on the following link: https://www.dropbox.com/developers/apps/create

Fourth (if running on testnet or publicnet)

Make a account for metamask and infura for deploying/interacting the contract. This step can be skipped if the program is ran locally using ganache.

Demo run

To use the program (if tested locally, open the ganache app first) run the main script under folder AgriStore/scripts/main.py. The settings needs to be changed to ur local paths ```python

settings---------------------------------------------------------------------

path that the system will scan for greenhouse data

scanpath = {path/to/datascan}

path that the modified/original data will be saved

savepath = {path/to/datasave/locally}

path in the cloud of which the data can be saved

cloud_path = {path/to/datasave/cloud}

dropbox token, which is required to use the dropbox

with open("{path/to/cloudtoken.txt}", "r") as file: token = file.read()

level that can be used to divide the data

levels = 10

settings---------------------------------------------------------------------

```

More info

For more information for smartcontract and brownie usage please watch the following youtube link: https://www.youtube.com/watch?v=M576WGiDBdQ