Create SustainableSupplyChainContract.sol

sidra_chain_integration/contracts/SustainableSupplyChainContract.sol

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+const { ChaincodeStub } = require('fabric-shim');
+const { Chaincode } = require('fabric-contract-api');
+
+class SustainableSupplyChainContract extends Chaincode {
+    async Init(stub) {
+        // Initialize the contract with a set of sustainability standards
+        await stub.putState('sustainabilityStandards', JSON.stringify([
+            { name: 'Organic', description: 'Produced without the use of synthetic pesticides or fertilizers' },
+            { name: 'Recyclable', description: 'Made from recyclable materials' },
+        ]));
+    }
+
+    async Invoke(stub) {
+        let ret = stub.getFunctionAndParameters();
+        console.log(ret);
+        let method = this[ret.fcn];
+        if (!method) {
+            console.log('No method of name:' + ret.fcn + ' found');
+            throw new Error('Invalid function name');
+        }
+        try {
+            let payload = await method(stub, ret.params);
+            return shim.success(payload);
+        } catch (err) {
+            console.log(err);
+            return shim.error(err);
+        }
+    }
+
+    async verifySustainability(stub, args) {
+        // Verify that the product meets the sustainability standards
+        let product = args[0];
+        let sustainabilityStandards = await stub.getState('sustainabilityStandards');
+        let standards = JSON.parse(sustainabilityStandards);
+
+        for (let standard of standards) {
+            if (product[standard.name]) {
+                // Product meets the sustainability standard
+                return true;
+            }
+        }
+        return false;
+    }
+
+    async trackProduct(stub, args) {
+        // Track the product's origin, production process, and transportation
+        let product = args[0];
+        let origin = args[1];
+        let productionProcess = args[2];
+        let transportation = args[3];
+
+        // Update the product's tracking information
+        product.origin = origin;
+        product.productionProcess = productionProcess;
+        product.transportation = transportation;
+
+        // Store the updated product information
+        await stub.putState('product', JSON.stringify(product));
+    }
+
+    async queryProduct(stub, args) {
+        // Query the product's tracking information
+        let product = args[0];
+
+        // Retrieve the product's tracking information
+        let productInfo = await stub.getState('product');
+        let info = JSON.parse(productInfo);
+
+        // Return the product's tracking information
+        return info;
+    }
+}