Setup faucet for sepolia env

.github/workflows/manual-deploy-testnet-faucet.yml

@@ -21,6 +21,7 @@ on:
         options:
           - 'dev-testnet'
           - 'testnet'
+          - 'sepolia-testnet'
 
   workflow_call:
     inputs:
@@ -45,12 +46,21 @@ jobs:
         run: |
           echo "FAUCET_BUILD_TAG=testnetobscuronet.azurecr.io/obscuronet/faucet_testnet:latest" >> $GITHUB_ENV
           echo "TESTNET_ADDR=erpc.testnet.obscu.ro" >> $GITHUB_ENV
+          echo "DEFAULT_FAUCET_AMOUNT=100" >> $GITHUB_ENV
 
       - name: 'Sets env vars for dev-testnet'
         if: ${{ inputs.testnet_type == 'dev-testnet' }}
         run: |
           echo "FAUCET_BUILD_TAG=testnetobscuronet.azurecr.io/obscuronet/dev_faucet_testnet:latest" >> $GITHUB_ENV
           echo "TESTNET_ADDR=erpc.dev-testnet.obscu.ro" >> $GITHUB_ENV
+          echo "DEFAULT_FAUCET_AMOUNT=100" >> $GITHUB_ENV
+
+      - name: 'Sets env vars for sepolia-testnet'
+        if: ${{ inputs.testnet_type == 'sepolia-testnet' }}
+        run: |
+          echo "FAUCET_BUILD_TAG=testnetobscuronet.azurecr.io/obscuronet/sepolia_faucet_testnet:latest" >> $GITHUB_ENV
+          echo "TESTNET_ADDR=erpc.sepolia-testnet.obscu.ro" >> $GITHUB_ENV
+          echo "DEFAULT_FAUCET_AMOUNT=0.5" >> $GITHUB_ENV
 
       - name: 'Login to Azure docker registry'
         uses: azure/docker-login@v1
@@ -79,7 +89,7 @@ jobs:
           location: 'uksouth'
           restart-policy: 'Never'
           environment-variables: PORT=80
-          command-line: ./faucet --nodeHost ${{ env.TESTNET_ADDR }} --pk ${{ secrets.FAUCET_PK }} --jwtSecret ${{ secrets.FAUCET_JWT_SECRET }}
+          command-line: ./faucet --nodeHost ${{ env.TESTNET_ADDR }} --pk ${{ secrets.FAUCET_PK }} --jwtSecret ${{ secrets.FAUCET_JWT_SECRET }} --defaultAmount ${{ env.DEFAULT_FAUCET_AMOUNT }}
           ports: '80'
           cpu: 2
           memory: 2

README.md

@@ -363,7 +363,7 @@ it for an allocation to an externally owned addressed e.g. for the account `0x0d
 the following curl command can be used;
 
 ```bash
-curl --location --request POST 'http://127.0.0.1:8080/fund/obx' \
+curl --location --request POST 'http://127.0.0.1:8080/fund/eth' \
 --header 'Content-Type: application/json' \
 --data-raw '{ "address":"0x0d2166b7b3A1522186E809e83d925d7b0B6db084" }'
 ```

docs/_docs/testnet/deploying-a-smart-contract-programmatically.py

@@ -12,7 +12,7 @@
 WHOST = '127.0.0.1'
 LOWER = 0
 UPPER = 100
-FAUCET_URL = 'http://testnet-faucet.uksouth.azurecontainer.io/fund/obx'
+FAUCET_URL = 'http://testnet-faucet.uksouth.azurecontainer.io/fund/eth'
 
 guesser = '''
 // SPDX-License-Identifier: MIT

docs/_docs/testnet/faucet.md

@@ -30,6 +30,6 @@ the faucet server using the below;
 1. Make a note of your wallet address or copy it to your clipboard.
 2. Open a command shell and issue the below command, where `<address>` should be replaced with the value stored in your clipboard (e.g. `0x75Ad715443e1E2EBdaFA33ABB3B08443966019A6`). The faucet server will credit 100,000 OBX by default.
 ```bash
-curl --location --request POST 'http://testnet-faucet.uksouth.azurecontainer.io/fund/obx' --header 'Content-Type: application/json' --data-raw '{ "address":"<your address>" }'
+curl --location --request POST 'http://testnet-faucet.uksouth.azurecontainer.io/fund/eth' --header 'Content-Type: application/json' --data-raw '{ "address":"<your address>" }'
 ```
 3. After a short period of time the curl command will return `{"status":"ok"}` confirming OBX have been credited to your wallet.

integration/faucet/faucet_test.go

@@ -45,13 +45,14 @@ func TestFaucet(t *testing.T) {
 	time.Sleep(2 * time.Second)
 
 	faucetConfig := &faucet.Config{
-		Port:       startPort,
-		Host:       "localhost",
-		HTTPPort:   startPort + integration.DefaultHostRPCHTTPOffset,
-		PK:         "0x" + contractDeployerPrivateKeyHex,
-		JWTSecret:  "This_is_secret",
-		ChainID:    big.NewInt(integration.ObscuroChainID),
-		ServerPort: integration.StartPortFaucetHTTPUnitTest,
+		Port:              startPort,
+		Host:              "localhost",
+		HTTPPort:          startPort + integration.DefaultHostRPCHTTPOffset,
+		PK:                "0x" + contractDeployerPrivateKeyHex,
+		JWTSecret:         "This_is_secret",
+		ChainID:           big.NewInt(integration.ObscuroChainID),
+		ServerPort:        integration.StartPortFaucetHTTPUnitTest,
+		DefaultFundAmount: new(big.Int).Mul(big.NewInt(100), big.NewInt(1e18)),
 	}
 	faucetContainer, err := container.NewFaucetContainerFromConfig(faucetConfig)
 	assert.NoError(t, err)
@@ -98,7 +99,7 @@ func createObscuroNetwork(t *testing.T, startPort int) {
 }
 
 func fundWallet(port int, w wallet.Wallet) error {
-	url := fmt.Sprintf("http://localhost:%d/fund/obx", port)
+	url := fmt.Sprintf("http://localhost:%d/fund/eth", port)
 	method := "POST"
 
 	payload := strings.NewReader(fmt.Sprintf(`{"address":"%s"}`, w.Address()))

integration/networktest/env/network_setup.go

@@ -9,7 +9,7 @@ func Testnet() networktest.Environment {
 	connector := NewTestnetConnector(
 		"http://erpc.testnet.obscu.ro:80",
 		[]string{"http://erpc.testnet.obscu.ro:80"}, // for now we'll just use sequencer as validator node... todo (@matt)
-		"http://testnet-faucet.uksouth.azurecontainer.io/fund/obx",
+		"http://testnet-faucet.uksouth.azurecontainer.io/fund/eth",
 		"ws://testnet-eth2network.uksouth.cloudapp.azure.com:9000",
 	)
 	return &testnetEnv{connector}
@@ -19,7 +19,7 @@ func DevTestnet() networktest.Environment {
 	connector := NewTestnetConnector(
 		"http://erpc.dev-testnet.obscu.ro:80",
 		[]string{"http://erpc.dev-testnet.obscu.ro:80"}, // for now we'll just use sequencer as validator node... todo (@matt)
-		"http://dev-testnet-faucet.uksouth.azurecontainer.io/fund/obx",
+		"http://dev-testnet-faucet.uksouth.azurecontainer.io/fund/eth",
 		"ws://dev-testnet-eth2network.uksouth.cloudapp.azure.com:9000",
 	)
 	return &testnetEnv{connector}

tools/faucet/README.md

@@ -31,11 +31,11 @@ on port `80` within the container, but maps port `8080` on the host machine to t
 
 
 ## Allocating OBX to an EOA on a local testnet
-Allocating OBX to an externally owned account is done through a POST command to the `/fund/obx` endpoint, where the 
+Allocating OBX to an externally owned account is done through a POST command to the `/fund/eth` endpoint, where the 
 data in the POST command specifies the address e.g. for the account `0x0d2166b7b3A1522186E809e83d925d7b0B6db084`
 
 ```bash
-curl --location --request POST 'http://127.0.0.1:8080/fund/obx' \
+curl --location --request POST 'http://127.0.0.1:8080/fund/eth' \
 --header 'Content-Type: application/json' \
 --data-raw '{ "address":"0x0d2166b7b3A1522186E809e83d925d7b0B6db084" }'
 ```

tools/faucet/cmd/cli.go

@@ -4,6 +4,8 @@ import (
 	"flag"
 	"math/big"
 
+	"github.com/ethereum/go-ethereum/params"
+
 	"github.com/obscuronet/go-obscuro/tools/faucet/faucet"
 )
 
@@ -32,6 +34,10 @@ const (
 	serverPortName    = "serverPort"
 	serverPortDefault = 80
 	serverPortUsage   = "Port where the web server binds to"
+
+	defaultAmountName    = "defaultAmount"
+	defaultAmountDefault = 100.0
+	defaultAmountUsage   = "Default amount of token to fund (in ETH)"
 )
 
 func parseCLIArgs() *faucet.Config {
@@ -41,15 +47,25 @@ func parseCLIArgs() *faucet.Config {
 	faucetPK := flag.String(faucetPKName, faucetPKDefault, faucetPKUsage)
 	jwtSecret := flag.String(jwtSecretName, jwtSecretDefault, jwtSecretUsage)
 	serverPort := flag.Int(serverPortName, serverPortDefault, serverPortUsage)
+	defaultAmount := flag.Float64(defaultAmountName, defaultAmountDefault, defaultAmountUsage)
 	flag.Parse()
 
 	return &faucet.Config{
-		Port:       *faucetPort,
-		Host:       *nodeHost,
-		HTTPPort:   *nodeHTTPPort,
-		PK:         *faucetPK,
-		JWTSecret:  *jwtSecret,
-		ServerPort: *serverPort,
-		ChainID:    big.NewInt(443), // TODO make this configurable
+		Port:              *faucetPort,
+		Host:              *nodeHost,
+		HTTPPort:          *nodeHTTPPort,
+		PK:                *faucetPK,
+		JWTSecret:         *jwtSecret,
+		ServerPort:        *serverPort,
+		ChainID:           big.NewInt(443), // TODO make this configurable
+		DefaultFundAmount: toWei(defaultAmount),
 	}
 }
+
+func toWei(amount *float64) *big.Int {
+	amtFloat := new(big.Float).SetFloat64(*amount)
+	weiFloat := new(big.Float).Mul(amtFloat, big.NewFloat(params.Ether))
+	// don't care about the accuracy here, float should have less than 18 decimal places
+	wei, _ := weiFloat.Int(nil)
+	return wei
+}

tools/faucet/container/faucet_container.go

@@ -21,7 +21,7 @@ func NewFaucetContainerFromConfig(cfg *faucet.Config) (*FaucetContainer, error)
 		return nil, err
 	}
 	bindAddress := fmt.Sprintf(":%d", cfg.ServerPort)
-	server := webserver.NewWebServer(f, bindAddress, []byte(cfg.JWTSecret))
+	server := webserver.NewWebServer(f, bindAddress, []byte(cfg.JWTSecret), cfg.DefaultFundAmount)
 
 	return NewFaucetContainer(f, server)
 }

tools/faucet/faucet/faucet.go

@@ -13,18 +13,19 @@ import (
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/log"
-	"github.com/ethereum/go-ethereum/params"
 	"github.com/obscuronet/go-obscuro/go/obsclient"
 	"github.com/obscuronet/go-obscuro/go/rpc"
 	"github.com/obscuronet/go-obscuro/go/wallet"
 )
 
 const (
-	_timeout       = 60 * time.Second
-	OBXNativeToken = "obx"
-	WrappedOBX     = "wobx"
-	WrappedEth     = "weth"
-	WrappedUSDC    = "usdc"
+	_timeout    = 60 * time.Second
+	NativeToken = "eth"
+	// DeprecatedNativeToken is left in temporarily for tooling that is getting native funds using `/obx` URL
+	DeprecatedNativeToken = "obx" // todo (@matt) remove this once we have fixed the /obx usages
+	WrappedOBX            = "wobx"
+	WrappedEth            = "weth"
+	WrappedUSDC           = "usdc"
 )
 
 type Faucet struct {
@@ -50,11 +51,11 @@ func NewFaucet(rpcURL string, chainID int64, pkString string) (*Faucet, error) {
 	}, nil
 }
 
-func (f *Faucet) Fund(address *common.Address, token string, amount int64) error {
+func (f *Faucet) Fund(address *common.Address, token string, amount *big.Int) error {
 	var err error
 	var signedTx *types.Transaction
 
-	if token == OBXNativeToken {
+	if token == NativeToken || token == DeprecatedNativeToken {
 		signedTx, err = f.fundNativeToken(address, amount)
 	} else {
 		return fmt.Errorf("token not fundable atm")
@@ -105,7 +106,7 @@ func (f *Faucet) validateTx(tx *types.Transaction) error {
 	return fmt.Errorf("unable to fetch tx receipt after %s", _timeout)
 }
 
-func (f *Faucet) fundNativeToken(address *common.Address, amount int64) (*types.Transaction, error) {
+func (f *Faucet) fundNativeToken(address *common.Address, amount *big.Int) (*types.Transaction, error) {
 	// only one funding at the time
 	f.fundMutex.Lock()
 	defer f.fundMutex.Unlock()
@@ -125,7 +126,7 @@ func (f *Faucet) fundNativeToken(address *common.Address, amount int64) (*types.
 		GasPrice: big.NewInt(225),
 		Gas:      gas,
 		To:       address,
-		Value:    new(big.Int).Mul(big.NewInt(amount), big.NewInt(params.Ether)),
+		Value:    amount,
 	}
 
 	signedTx, err := f.wallet.SignTransaction(tx)

tools/faucet/faucet/faucet_config.go

@@ -3,11 +3,12 @@ package faucet
 import "math/big"
 
 type Config struct {
-	Port       int
-	Host       string
-	HTTPPort   int
-	PK         string
-	JWTSecret  string
-	ChainID    *big.Int
-	ServerPort int
+	Port              int
+	Host              string
+	HTTPPort          int
+	PK                string
+	JWTSecret         string
+	ChainID           *big.Int
+	ServerPort        int
+	DefaultFundAmount *big.Int // how much token to fund by default (in wei)
 }