add crop handling to app readme

Author: matthiaszimmermann

.vscode/settings.json

@@ -37,4 +37,10 @@
     "security.olympix.project.includePath": "/contracts",
     "solidity.defaultCompiler": "localFile",
     "solidity.compileUsingLocalVersion": "/workspaces/gif-next/soljson-v0.8.26+commit.8a97fa7a.js",
+    "wake.compiler.solc.remappings": [
+        "@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts/",
+        "@openzeppelin/contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/contracts/",
+        "forge-std/=lib/forge-std/src/",
+        "@gif-next=contracts/"
+    ],
 }

app/README.md

@@ -21,15 +21,22 @@ from web3utils.contract import Contract
 from web3utils.wallet import Wallet
 from web3utils.chain import Chain
 
-load_dotenv("../.env")
+load_dotenv("./.env")
 
 # get w3 provider/node
 w3_uri = os.getenv("NETWORK_URL")
 w3 = Web3(Web3.HTTPProvider(w3_uri))
 chain = Chain(w3)
+
+# check network connection
+assert chain.id() == 80002, f"Not Polygon Amoy. Chain ID {chain.id()}, expected 80002"
 assert chain.id() == 8453, f"Not Base Mainnet. Chain ID {chain.id()}, expected 8453"
 
-# get flight contracts
+# get crop contract
+(product, usdc, instance, admin, reader, registry) = from_product(w3, "CropProduct", os.getenv("PRODUCT_CONTRACT_ADDRESS"))
+pool = pool_for_product(registry, reader, product, "CropPool")
+
+# get flight contract
 (product, usdc, instance, admin, reader, registry) = from_product(w3, "FlightProduct", os.getenv("FLIGHT_PRODUCT_ADDRESS"))
 pool = pool_for_product(registry, reader, product, "FlightPool")
 pool_nft = pool.getNftId()

app/web3utils/wallet.py

@@ -71,13 +71,15 @@ def transfer(self, to: Union [str, "Wallet"], amount: int, gas_price: int = None
             to = to.address
 
         nonce = self.nonce()
+        chain_id = self.w3.eth.chain_id
         gas = 21000
         gas_price = gas_price or self.w3.eth.gas_price
 
         tx = {
             "to": to,
             "value": amount,
             "nonce": nonce,
+            "chainId": chain_id, # only replay-protected (EIP-155) transactions allowed over RPC
             "gas": gas,
             "gasPrice": gas_price,
         }