Merge pull request #36 from smartcontractkit/harry/add-tasks-back

added tasks back in to starter kit

README.md

@@ -19,7 +19,7 @@
 ## Installation
 
 ### Kovan Ethereum Testnet
-Set your `KOVAN_RPC_URL` [environment variable.](https://www.twilio.com/blog/2017/01/how-to-set-environment-variables.html). You can get one for free at [Infura's site.](https://infura.io/) You'll also need to set the variable `MNEMONIC` which is your mnemonic from your wallet, ie MetaMask. This is needed for deploying contracts to public networks. You can optionally set your `PRIVATE_KEY` instead with some changes to the `hardhat.config.js`.
+Set your `KOVAN_RPC_URL` [environment variable.](https://www.twilio.com/blog/2017/01/how-to-set-environment-variables.html). You can get one for free at [Infura's site.](https://infura.io/) You'll also need to set the variable `PRIVATE_KEY`, which is your private key from your wallet, ie MetaMask. This is needed for deploying contracts to public networks. You can optionally set your `MNEMONIC` environment variable instead with some changes to the `hardhat.config.js`.
 
 ### Matic Mumbai Testnet
 Set your `MUMBAI_RPC_URL` [environment variable](https://www.twilio.com/blog/2017/01/how-to-set-environment-variables.html). You can get one from the [Matic docs](https://docs.matic.network/docs/develop/network-details/network). You'll also need to set the variable `PRIVATE_KEY` which is your private key from your wallet, ie MetaMask. This is needed for deploying contracts to public networks. You can obtain testnet MATIC and LINK via the [MATIC Faucet](https://faucet.matic.network/)
@@ -34,15 +34,15 @@ Don't commit and push any changes to .env files that may contain sensitive infor
 `.env` example:
 ```
 KOVAN_RPC_URL='www.infura.io/asdfadsfafdadf'
-MNEMONIC='cat dog frog...'
+PRIVATE_KEY='abcdef'
 MAINNET_RPC_URL="https://eth-mainnet.alchemyapi.io/v2/your-api-key"
 MUMBAI_RPC_URL='https://rpc-mumbai.maticvigil.com'
 POLYGON_MAINNET_RPC_URL='https://rpc-mainnet.maticvigil.com'
 ```
 `bash` example
 ```
 export KOVAN_RPC_URL='www.infura.io/asdfadsfafdadf'
-export MNEMONIC='cat dog frog...'
+export PRIVATE_KEY='abcdef'
 export MAINNET_RPC_URL='https://eth-mainnet.alchemyapi.io/v2/your-api-key'
 export MUMBAI_RPC_URL='https://rpc-mumbai.maticvigil.com'
 export POLYGON_MAINNET_RPC_URL='https://rpc-mainnet.maticvigil.com'

hardhat.config.js

@@ -5,17 +5,16 @@ require("@nomiclabs/hardhat-waffle")
 require("@nomiclabs/hardhat-ethers")
 require("@nomiclabs/hardhat-truffle5")
 require("@nomiclabs/hardhat-etherscan")
-require("@appliedblockchain/chainlink-plugins-api-consumer")
-require("@appliedblockchain/chainlink-plugins-price-consumer")
-require("@appliedblockchain/chainlink-plugins-random-number-consumer")
-require("@appliedblockchain/chainlink-plugins-fund-link")
 require("hardhat-deploy")
 require("./tasks/accounts")
 require("./tasks/balance")
 require("./tasks/withdraw-link")
 require("./tasks/block-number")
 require("./tasks/price-consumer")
-
+require("./tasks/random-number-consumer")
+require("./tasks/price-consumer")
+require("./tasks/api-consumer")
+require("@appliedblockchain/chainlink-plugins-fund-link")
 
 require('dotenv').config()
 
@@ -42,10 +41,10 @@ module.exports = {
         },
         kovan: {
             url: KOVAN_RPC_URL,
-            // accounts: [PRIVATE_KEY],
-            accounts: {
-                mnemonic: MNEMONIC,
-            },
+             accounts: [PRIVATE_KEY],
+            //accounts: {
+           //     mnemonic: MNEMONIC,
+           // },
             saveDeployments: true,
         },
         rinkeby: {

tasks/api-consumer/index.js

@@ -0,0 +1,2 @@
+exports.readData = require("./read-data.js")
+exports.requestData = require("./request-data.js")

tasks/api-consumer/read-data.js

@@ -0,0 +1,26 @@
+task("read-data", "Calls an API Consumer Contract to read data obtained from an external API")
+    .addParam("contract", "The address of the API Consumer contract that you want to call")
+    .setAction(async taskArgs => {
+
+        const contractAddr = taskArgs.contract
+        const networkId = network.name
+        console.log("Reading data from API Consumer contract ", contractAddr, " on network ", networkId)
+        const APIConsumer = await ethers.getContractFactory("APIConsumer")
+
+        //Get signer information
+        const accounts = await ethers.getSigners()
+        const signer = accounts[0]
+
+        //Create connection to API Consumer Contract and call the createRequestTo function
+        const apiConsumerContract = new ethers.Contract(contractAddr, APIConsumer.interface, signer)
+        let result = BigInt(await apiConsumerContract.volume()).toString()
+        console.log('Data is: ', result)
+        if (result == 0 && ['hardhat', 'localhost', 'ganache'].indexOf(network.name) == 0) {
+            console.log("You'll either need to wait another minute, or fix something!")
+        }
+        if (['hardhat', 'localhost', 'ganache'].indexOf(network.name) >= 0) {
+            console.log("You'll have to manually update the value since you're on a local chain!")
+        }
+    })
+
+module.exports = {}

tasks/api-consumer/request-data.js

@@ -0,0 +1,23 @@
+let { networkConfig, getNetworkIdFromName } = require('../../helper-hardhat-config')
+
+task("request-data", "Calls an API Consumer Contract to request external data")
+    .addParam("contract", "The address of the API Consumer contract that you want to call")
+    .setAction(async taskArgs => {
+
+        const contractAddr = taskArgs.contract
+        let networkId = await getNetworkIdFromName(network.name)
+        console.log("Calling API Consumer contract ", contractAddr, " on network ", network.name)
+        const APIConsumer = await ethers.getContractFactory("APIConsumer")
+
+        //Get signer information
+        const accounts = await ethers.getSigners()
+        const signer = accounts[0]
+
+        //Create connection to API Consumer Contract and call the createRequestTo function
+        const apiConsumerContract = new ethers.Contract(contractAddr, APIConsumer.interface, signer)
+        var result = await apiConsumerContract.requestVolumeData()
+        console.log('Contract ', contractAddr, ' external data request successfully called. Transaction Hash: ', result.hash)
+        console.log("Run the following to read the returned result:")
+        console.log("npx hardhat read-data --contract " + contractAddr + " --network " + network.name)
+    })
+module.exports = {}

tasks/price-consumer/index.js

@@ -1 +1,2 @@
 exports.readPriceFeedEns = require("./read-price-feed-ens.js")
+exports.readPriceFeed = require("./read-price-feed.js")

tasks/price-consumer/read-price-feed.js

@@ -0,0 +1,20 @@
+task("read-price-feed", "Gets the latest price from a Chainlink Price Feed")
+    .addParam("contract", "The address of the Price Feed consumer contract that you want to read")
+    .setAction(async taskArgs => {
+
+        const contractAddr = taskArgs.contract
+        const networkId = network.name
+
+        const PriceFeedConsumerContract = await ethers.getContractFactory("PriceConsumerV3")
+        console.log("Reading data from Price Feed consumer contract ", contractAddr, " on network ", networkId)
+
+        //Get signer information
+        const accounts = await ethers.getSigners()
+        const signer = accounts[0]
+        const priceFeedConsumerContract = await new ethers.Contract(contractAddr, PriceFeedConsumerContract.interface, signer)
+        await priceFeedConsumerContract.getLatestPrice().then((data) => {
+            console.log('Price is: ', BigInt(data).toString())
+        })
+    })
+
+module.exports = {}

tasks/random-number-consumer/index.js

@@ -0,0 +1,2 @@
+exports.readRandomNumber = require("./read-random-number.js")
+exports.requestRandomNumber = require("./request-random-number.js")

tasks/random-number-consumer/read-random-number.js

@@ -0,0 +1,26 @@
+task("read-random-number", "Reads the random number returned to a contract by Chainlink VRF")
+    .addParam("contract", "The address of the VRF contract that you want to read")
+    .setAction(async taskArgs => {
+
+        const contractAddr = taskArgs.contract
+        const networkId = network.name
+        console.log("Reading data from VRF contract ", contractAddr, " on network ", networkId)
+        const RandomNumberConsumer = await ethers.getContractFactory("RandomNumberConsumer")
+
+        //Get signer information
+        const accounts = await hre.ethers.getSigners()
+        const signer = accounts[0]
+
+        //Create connection to API Consumer Contract and call the createRequestTo function
+        const vrfConsumerContract = new ethers.Contract(contractAddr, RandomNumberConsumer.interface, signer)
+        let result = BigInt(await vrfConsumerContract.randomResult()).toString()
+        console.log('Random Number is: ', result)
+        if (result == 0 && ['hardhat', 'localhost', 'ganache'].indexOf(network.name) == 0) {
+            console.log("You'll either need to wait another minute, or fix something!")
+        }
+        if (['hardhat', 'localhost', 'ganache'].indexOf(network.name) >= 0) {
+            console.log("You'll have to manually update the value since you're on a local chain!")
+        }
+    })
+
+module.exports = {}

tasks/random-number-consumer/request-random-number.js

@@ -0,0 +1,22 @@
+task("request-random-number", "Requests a random number for a Chainlink VRF enabled smart contract")
+    .addParam("contract", "The address of the API Consumer contract that you want to call")
+    .setAction(async taskArgs => {
+
+        const contractAddr = taskArgs.contract
+        const networkId = network.name
+        console.log("Requesting a random number using VRF consumer contract ", contractAddr, " on network ", networkId)
+        const RandomNumberConsumer = await ethers.getContractFactory("RandomNumberConsumer")
+
+        //Get signer information
+        const accounts = await hre.ethers.getSigners()
+        const signer = accounts[0]
+
+        //Create connection to VRF Contract and call the getRandomNumber function
+        const vrfConsumerContract = new ethers.Contract(contractAddr, RandomNumberConsumer.interface, signer)
+        var result = await vrfConsumerContract.getRandomNumber()
+        console.log('Contract ', contractAddr, ' random number request successfully called. Transaction Hash: ', result.hash)
+        console.log("Run the following to read the returned random number:")
+        console.log("npx hardhat read-random-number --contract " + contractAddr + " --network " + network.name)
+    })
+
+module.exports = {}