yonghuajiang / supplychain

UML Document: Located under uml folder

Test contract:

Run truffle test to verify all functions work properly.

transaction hash: 0xbab733be9460af3ff61808708696e0b519ce019cdd9271e0af1cd500bb7d9c3a

Contract address:0x3588cEAfe0AA8E1186B3C2b8a53e11090fCa9dE6

If libraries were used, include why these libraries were adopted.

Solidity: 0.8.1 -- Used as the contract compiler truffle-hdwallet-provider: 1.0.17 -- Use it to sign transactions web3: v1.5.3 -- collection of libraries to interact with a local or remote Ethereum.

Test: a.) Test contract in Truffle 12 tests were conducted: √ 1: Testing ownable contract (1326ms) √ 2: Testing adding farmer (587ms) √ 3: Testing adding distributor (583ms) √ 4: Testing adding retailer (668ms) √ 5: Testing smart contract function harvestItem() that allows a farmer to harvest coffee (1653ms) √ 6: Testing smart contract function processItem() that allows a farmer to process coffee (790ms) √ 7: Testing smart contract function packItem() that allows a farmer to pack coffee (785ms) √ 8: Testing smart contract function sellItem() that allows a farmer to sell coffee (1133ms) √ 9: Testing smart contract function buyItem() that allows a distributor to buy coffee (1187ms) √ 10: Testing smart contract function shipItem() that allows a distributor to ship coffee (751ms)

√ 11:Testing smart contract function receiveItem() that allows a retailer to mark coffee received (953ms) √ 12: Testing smart contract function purchaseItem() that allows a consumer to purchase coffee (1112ms)

b.) deploy to rinkeby by run: migrate --network rinkeby

c.) start frontend by run: npm run dev test: 1: AddFarmer: contract was executed successfully; 2: AddDistributor: contract was executed successfully; 3: AddRetailer: contract was executed successfully; 4: Harvest and then FetchData2: result returned as expected; 5: Process and then FetchData2: result returned as expected; 6: Pack and then FetchData2: result returned as expected; 7: ForSale and then FetchData2: result returned as expected; 8: Buy and then FetchData2: result returned as expected; 9: Ship and then FetchData2: result returned as expected; 10: Received and then FetchData2: result returned as expected; 11: Purchase and then FetchData2: result returned as expected;

d.) known issue: not all transaction history was shown in the transaction history tab. As shown below, packItem,buyItem as not shown. Transaction History [object Object] Harvested - 0xf2e5d9389ee31ef7340870d8a3fcfd34bb7116225b76ca4a25b1db349b70b720 Processed - 0x82d44807a2deba2261557d7e305219ae8951f46b8db24f08b728da1d50e296b5 ForSale - 0x889d0cac78ec91c46f6ee17b7cf55e9fc48625c24c1974b5995a7f5de6cf6064 Shipped - 0x1655bc4cdc1b469cb2daeb7bf3fea1cdd5764f7bbe76d9b420066c24ec5c0613 Received - 0x5b26ba6871f9f29b0a7b52ffc498a70a4234e90d32f490d8468190f48ea209b0 Purchased - 0x3c3ac52d639bd8e74d93af1542e63e6ca66f8480d2f8b85046f308493e70ae89