faucet

abi.js

@@ -19,6 +19,12 @@ export const erc20Abi = [
 ]
 
 
+export const mockErc20Abi = [
+    ...erc20Abi,
+    'function mint(address,uint256)',
+]
+
+
 const factoryAbi = [
     'function deployVault(address owner, uint8 num) returns (address vault)',
     'event VaultCreated( address deployer, address owner )',

faucet.js

@@ -0,0 +1,30 @@
+import {ethers} from "ethers";
+import {getProvider} from "./blockchain.js";
+import {chainInfo} from "./chain.js";
+import {vaultAddress} from "./vault.js";
+import {mockErc20Abi} from "./abi.js";
+
+
+export async function faucet( chainId, owner, vault=null ) {
+    if( chainId === 31337 ) {
+        if( vault === null )
+            vault = vaultAddress(chainId, owner)
+        const provider = getProvider(chainId);
+        let faucet = new ethers.Wallet(
+            // Dev Account #8
+            '0xdbda1821b80551c9d65939329250298aa3472ba22feea921c0cf5d620ea67b97',
+            provider
+        )
+        let nonce = await provider.getTransactionCount(faucet.address, 'pending')
+        faucet = new ethers.NonceManager(faucet)
+        await faucet.sendTransaction({to:owner, value:1n *10n**18n, nonce: nonce++})
+        const info = chainInfo[31337]
+        if( info.mockCoins ) {
+            const [coinAddr, usdAddr] = info.mockCoins
+            const signer = await provider.getSigner()
+            await new ethers.Contract(coinAddr, mockErc20Abi, signer).mint(vault, 10n *10n**18n)
+            await new ethers.Contract(usdAddr, mockErc20Abi, signer).mint(vault, 10_1000n *10n**6n)
+        }
+    }
+}
+

main.js

@@ -2,9 +2,10 @@ import 'dotenv/config'
 
 import {lookupToken} from "./token.js";
 import {httpServer, io} from "./io.js";
-import {ensureVault, loginAddress} from "./vault.js";
+import {ensureVault, loginAddress, vaultAddress} from "./vault.js";
 import {chainInfo, VAULT_INIT_CODE_HASH} from "./chain.js";
 import {subPools, unsubPools} from "./pool.js";
+import {faucet} from "./faucet.js";
 
 
 // setup socket.io
@@ -18,13 +19,16 @@ io.on("connection", (socket) => {
     socket.on('subPools', (chainId, addresses) => subPools(socket, chainId, addresses) )
     socket.on('unsubPools', (chainId, addresses) => unsubPools(socket, chainId, addresses) )
     socket.on('ensureVault', (chainId,owner,num) => ensureVault(socket, chainId, owner, num) )
+    if( 31337 in chainInfo && chainInfo[31337]?.mockenv )
+        socket.on('faucet', async (chainId, owner) => await faucet(chainId, owner))
     socket.join('public')
     socket.emit('welcome', {chainInfo, vaultInitCodeHash:VAULT_INIT_CODE_HASH})
 });
 
-io.on("disconnection", (socket)=>{
-    socket.leave('public')
-})
+// io.on("disconnection", (socket)=>{
+//     socket.leave('public') // todo isn't this automatic?
+//     todo unsub pools etc?
+// })
 
 const port = parseInt(process.env.DEXORDER_PORT) || 3000;
 httpServer.listen(port)

order.js

@@ -62,9 +62,7 @@ export async function recentOrders( socket, chainId, vault, limit=25 ) {
             where oi.chain=${chainId} and oi.vault='${vault}'
                 and sd.series='o' and sd.key=concat('${vault}','|',to_char(oi.order_index, 'FM00000')) 
             order by oi.order_index desc limit ${limit}`;
-    console.log('sql',sql)
     const query = await db.query(sql)
-    console.log('got historical statuses', query)
     const result = []
     for( const {order_index, value} of query.rows)
         result.push([order_index,JSON.parse(value)])

token.js

@@ -12,6 +12,10 @@ const tokens = {
     31337: std_arbitrum_tokens,
 }
 
+export function erc20(chainId, addr, provider=null) {
+    return new ethers.Contract(addr, erc20Abi, provider?provider:getProvider(chainId));
+}
+
 export async function lookupToken(chainId, address) {
     // console.log('lookupToken', chainId, address)
     const chainTokens = tokens[chainId]
@@ -26,7 +30,7 @@ export async function lookupToken(chainId, address) {
             // todo look in tokens project
             const addr = ethers.getAddress(address)
             // console.log('addr', addr)
-            const token = new ethers.Contract(addr, erc20Abi, getProvider(chainId))
+            const token = erc20(chainId, addr)
             const symbol = await token.symbol()
             // console.log('symbol', symbol)
             const decimals = Number(await token.decimals())

vault.js

@@ -4,6 +4,7 @@ import {getProvider, getSigner} from "./blockchain.js";
 import {vaultBalances, vaults} from './cache.js';
 import {chainInfo, VAULT_INIT_CODE_HASH} from "./chain.js";
 import {sendVaultOrders} from "./order.js";
+import {faucet} from "./faucet.js";
 
 // Vault
 //   address owner
@@ -90,22 +91,22 @@ async function createVault(chainId, owner, num) {
     console.log('createVault', chainId, owner, num )
     const signer = getSigner(chainId);
     const deployer = new ethers.Contract(chainInfo[chainId].factory, factoryAbi, signer)
-    const addr = vaultAddress(chainId, owner, num)
+    const vaultAddr = vaultAddress(chainId, owner, num)
     try {
         const tx = await deployer.deployVault(owner, num)
         // console.log(`deploying vault for ${owner} #${num} with tx ${tx.hash}`)
         await tx.wait()
     }
     catch (e) {
-        const vault = new ethers.Contract(addr, vaultAbi, getProvider(chainId))
+        const vault = new ethers.Contract(vaultAddr, vaultAbi, getProvider(chainId))
         try {
             const ver = await vault.version()
-            console.log(`vault already deployed at ${addr} with version ${ver}`)
+            console.log(`vault already deployed at ${vaultAddr} with version ${ver}`)
         }
         catch (e2) {
             console.error('could not deploy vault:',e)
             return null
         }
     }
-    return addr
+    return vaultAddr
 }