added the private key and the alchemy api url functionality in the init function

Author: ibilalkayy

README.md

@@ -25,8 +25,15 @@ To know about the application in detail, you can visit the [docs](https://github
 To get started in flow, you need to have two applications installed on your machine.
 
 1. [Golang](https://go.dev/dl/)
-2. [Docker](https://www.docker.com/get-started/)
-3. [PostgreSQL](https://www.postgresql.org/)
+2. [Cobra Framework](cobra.dev/)
+3. [Docker](https://www.docker.com/get-started/)
+4. [PostgreSQL](https://www.postgresql.org/)
+5. [Alchemy API URL](https://docs.alchemy.com/docs/alchemy-quickstart-guide)
+6. Wallet Private key
+
+### How to get Alchemy API URL?
+
+Signup to Alchemy, go to it's dashboad and the app section. Create a new app. If the new app is not allowed to create, then select the existing app, go to the network tab of the app and take the Ethereum Seplia API URL.
 
 ## Installation
 
@@ -56,7 +63,7 @@ Each subcommand has its own set of options and arguments. Here are some examples
 
 ```bash
 # Initialize the application
-flow init -n username -g gmail-id -a app-password -o postgresql-host -p postgresql-port -u postgresql-user -w postgresql-password -d postgresql-dbname -s sslmode
+flow init -n username -g gmail-id -a app-password -o postgresql-host -p 5432 -u postgresql-user -w postgresql-password -d postgresql-dbname -s sslmode -k privatekey -i alchemy-url
 
 # Create a budget
 flow budget create --category groceries/utilities --amount 300

cmd/init/main.go

@@ -40,6 +40,9 @@ func initApp(cmd *cobra.Command, args []string) {
 	postgresDBName, _ := cmd.Flags().GetString("db-name")
 	sslMode, _ := cmd.Flags().GetString("sslmode")
 
+	privateKey, _ := cmd.Flags().GetString("private-key")
+	alchemyApiURL, _ := cmd.Flags().GetString("alchemy-api-url")
+
 	authParams := &entities.AuthVariables{
 		Username:    username,
 		Gmail:       gmail,
@@ -55,12 +58,18 @@ func initApp(cmd *cobra.Command, args []string) {
 		SSLMode:  sslMode,
 	}
 
+	blockchainParams := &entities.BlockchainVariables{
+		PrivateKey:    privateKey,
+		AlchemyApiURL: alchemyApiURL,
+	}
+
 	if allNonEmpty(
 		authParams.Username, authParams.Gmail, authParams.AppPassword,
 		dbParams.Host, dbParams.Port, dbParams.User, dbParams.Password,
-		dbParams.DBName, dbParams.SSLMode,
+		dbParams.DBName, dbParams.SSLMode, blockchainParams.PrivateKey,
+		blockchainParams.AlchemyApiURL,
 	) {
-		err := InitializeApplication(authParams, dbParams)
+		err := InitializeApplication(authParams, dbParams, blockchainParams)
 		if err != nil {
 			fmt.Println("Error during initialization:", err)
 			return
@@ -84,9 +93,9 @@ func takeHandler() *handler.Handler {
 	return handle
 }
 
-func InitializeApplication(authParams *entities.AuthVariables, dbParams *entities.DatabaseVariables) error {
+func InitializeApplication(authParams *entities.AuthVariables, dbParams *entities.DatabaseVariables, blockchainParams *entities.BlockchainVariables) error {
 	h := takeHandler()
-	err := h.Deps.Init.WriteEnvFile(authParams, dbParams)
+	err := h.Deps.Init.WriteEnvFile(authParams, dbParams, blockchainParams)
 	if err != nil {
 		return fmt.Errorf("error writing to .env file: %v", err)
 	}
@@ -110,4 +119,6 @@ func init() {
 	InitCmd.Flags().StringP("db-user", "u", "", "Write the PostgreSQL user")
 	InitCmd.Flags().StringP("db-name", "d", "", "Write the PostgreSQL DB name")
 	InitCmd.Flags().StringP("sslmode", "s", "", "Write the PostgreSQL SSLMode")
+	InitCmd.Flags().StringP("private-key", "k", "", "Write your wallet private key to store in .env file")
+	InitCmd.Flags().StringP("alchemy-api-url", "i", "", "Write your alchemy api url for sepolia test network")
 }

cmd/root.go

@@ -9,7 +9,7 @@ import (
 	"github.com/spf13/cobra"
 )
 
-const version = "v0.2.2"
+const version = "v0.2.3"
 
 // rootCmd represents the base command when called without any subcommands
 var RootCmd = &cobra.Command{

entities/init.go

@@ -14,3 +14,8 @@ type DatabaseVariables struct {
 	DBName   string
 	SSLMode  string
 }
+
+type BlockchainVariables struct {
+	PrivateKey    string
+	AlchemyApiURL string
+}

interfaces/interfaces.go

@@ -8,7 +8,7 @@ import (
 )
 
 type Init interface {
-	WriteEnvFile(av *entities.AuthVariables, dv *entities.DatabaseVariables) error
+	WriteEnvFile(av *entities.AuthVariables, dv *entities.DatabaseVariables, bv *entities.BlockchainVariables) error
 }
 
 type Connect interface {

usecases/app/init/init.go

@@ -12,7 +12,7 @@ type MyInit struct {
 	*handler.Handler
 }
 
-func (MyInit) WriteEnvFile(av *entities.AuthVariables, dv *entities.DatabaseVariables) error {
+func (MyInit) WriteEnvFile(av *entities.AuthVariables, dv *entities.DatabaseVariables, bv *entities.BlockchainVariables) error {
 	f, err := os.Create(".env")
 	if err != nil {
 		return err
@@ -33,6 +33,9 @@ func (MyInit) WriteEnvFile(av *entities.AuthVariables, dv *entities.DatabaseVari
 		{"DB_PASSWORD", dv.Password},
 		{"DB_NAME", dv.DBName},
 		{"SSL_MODE", dv.SSLMode},
+
+		{"PRIVATE_KEY", bv.PrivateKey},
+		{"ALCHEMY_API_URL", bv.AlchemyApiURL},
 	}
 
 	for _, field := range fields {