Setup config (stackup-wallet#2)

.air-rpc.toml → .air.toml

@@ -4,8 +4,8 @@ tmp_dir = "tmp"
 
 [build]
   args_bin = []
-  bin = "./tmp/rpc"
-  cmd = "go build -o ./tmp/rpc cmd/rpc.go"
+  bin = ";ERC4337_BUNDLER_GIN_MODE=debug ./tmp/stackup-bundler"
+  cmd = "go build -o ./tmp/stackup-bundler main.go"
   delay = 1000
   exclude_dir = ["assets", "tmp", "vendor", "testdata"]
   exclude_file = []

.gitignore

@@ -17,3 +17,4 @@
 # misc
 .DS_Store
 tmp
+.env

Makefile

@@ -1,6 +1,12 @@
-setup-dev:
+install-dev:
 	go install github.com/cosmtrek/air@latest
 	go mod tidy
 
-dev-rpc:
-	air -c .air-rpc.toml
+generate-environment:
+	go run ./cmd/genenv
+
+fetch-wallet:
+	go run ./cmd/fetchwallet
+
+dev:
+	air

README.md

@@ -17,14 +17,23 @@ See the `Client` documentation at [docs.stackup.sh](https://docs.stackup.sh/docs
 ## Setup
 
 ```bash
-# Will install https://github.com/cosmtrek/air for live reloading
-make setup-dev
+# Installs https://github.com/cosmtrek/air for live reloading.
+# Runs go mod tidy.
+make install-dev
+
+# Generates base .env file.
+# All variables in this file are required and should be filled.
+# Running this command WILL override current .env file.
+make generate-environment
+
+# Parses private key in .env file and prints public key and address.
+make fetch-wallet
 ```
 
 ## Run RPC server
 
 ```bash
-make dev-rpc
+make dev
 ```
 
 # License

cmd/fetchwallet/main.go

@@ -0,0 +1,21 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/spf13/viper"
+	"github.com/stackup-wallet/stackup-bundler/internal/wallet"
+)
+
+func main() {
+	viper.SetConfigName(".env")
+	viper.SetConfigType("env")
+	viper.AddConfigPath(".")
+	if err := viper.ReadInConfig(); err != nil {
+		panic(fmt.Errorf("fatal error config file: %w", err))
+	}
+
+	w := wallet.New(viper.GetString("erc4337_bundler_private_key"))
+	fmt.Printf("Public key: %s\n", w.PublicKey)
+	fmt.Printf("Address: %s\n", w.Address)
+}

cmd/genenv/main.go

@@ -0,0 +1,33 @@
+// Use this for generating a new private key saved to .privatekey
+// Implementation from https://goethereumbook.org/en/wallet-generate/
+package main
+
+import (
+	"fmt"
+	"log"
+
+	"github.com/ethereum/go-ethereum/common/hexutil"
+	"github.com/ethereum/go-ethereum/crypto"
+	"github.com/spf13/viper"
+)
+
+func genPrivateKey() string {
+	privateKey, err := crypto.GenerateKey()
+	if err != nil {
+		log.Fatal(err)
+	}
+	privateKeyBytes := crypto.FromECDSA(privateKey)
+
+	return hexutil.Encode(privateKeyBytes)[2:]
+}
+
+func main() {
+	viper.SetConfigName(".env")
+	viper.SetConfigType("env")
+	viper.Set("ERC4337_BUNDLER_RPC_URL", "")
+	viper.Set("ERC4337_BUNDLER_PRIVATE_KEY", genPrivateKey())
+
+	if err := viper.WriteConfigAs(".env"); err != nil {
+		panic(fmt.Errorf("fatal error config file: %w", err))
+	}
+}

go.mod

@@ -1,29 +1,44 @@
-module github.com/stackup-wallet/standalone-bundler
+module github.com/stackup-wallet/stackup-bundler
 
 go 1.19
 
 require (
+	github.com/ethereum/go-ethereum v1.10.25
 	github.com/gin-gonic/gin v1.8.1
-	github.com/iancoleman/strcase v0.2.0
+	github.com/spf13/viper v1.13.0
+	golang.org/x/text v0.3.7
 )
 
 require (
+	github.com/btcsuite/btcd/btcec/v2 v2.2.0 // indirect
+	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.0.1 // indirect
+	github.com/fsnotify/fsnotify v1.5.4 // indirect
 	github.com/gin-contrib/sse v0.1.0 // indirect
 	github.com/go-playground/locales v0.14.0 // indirect
 	github.com/go-playground/universal-translator v0.18.0 // indirect
 	github.com/go-playground/validator/v10 v10.11.1 // indirect
 	github.com/goccy/go-json v0.9.11 // indirect
+	github.com/hashicorp/hcl v1.0.0 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/leodido/go-urn v1.2.1 // indirect
+	github.com/magiconair/properties v1.8.6 // indirect
 	github.com/mattn/go-isatty v0.0.16 // indirect
+	github.com/mitchellh/mapstructure v1.5.0 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/pelletier/go-toml v1.9.5 // indirect
 	github.com/pelletier/go-toml/v2 v2.0.5 // indirect
+	github.com/spf13/afero v1.8.2 // indirect
+	github.com/spf13/cast v1.5.0 // indirect
+	github.com/spf13/jwalterweatherman v1.1.0 // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
+	github.com/subosito/gotenv v1.4.1 // indirect
 	github.com/ugorji/go/codec v1.2.7 // indirect
 	golang.org/x/crypto v0.0.0-20221005025214-4161e89ecf1b // indirect
 	golang.org/x/net v0.0.0-20221004154528-8021a29435af // indirect
 	golang.org/x/sys v0.0.0-20221006211917-84dc82d7e875 // indirect
-	golang.org/x/text v0.3.7 // indirect
 	google.golang.org/protobuf v1.28.1 // indirect
+	gopkg.in/ini.v1 v1.67.0 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
 )