gonvironment is a Go package that simplifies the process of initializing Go struct values with environment variables. It allows you to specify required environment variables and optionally include additional ones to populate the fields of a struct.
To use gonvironment in your Go project, you can simply install it using go get:
go get github.com/egomobile/gonvironmentTo use gonvironment, follow these steps:
- Import the
gonvironmentpackage in your Go file:
import (
"github.com/egomobile/gonvironment"
)-
Define your struct that represents the configuration you want to populate with environment variables.
-
Create an Options struct with the required and additional environment variable names, and pass it to the EnsureAndInitEnvironment function:
options := gonvironment.Options{
RequiredVariables: []string{"REQUIRED_VAR1", "REQUIRED_VAR2"},
AdditionalVariables: []string{"ADDITIONAL_VAR1", "ADDITIONAL_VAR2"},
EnvStruct: &YourConfigStruct{},
}
config, err := gonvironment.EnsureAndInitEnvironment(options)
if err is not nil {
// Handle errors
}- Access the initialized struct and use it in your application.
Here's an example of how to use gonvironment in your Go application:
package main
import (
"fmt"
"os"
"github.com/egomobile/gonvironment"
)
type MyConfig struct {
APIKey string
DatabaseURL string
Additional string
}
func main() {
options := gonvironment.Options{
RequiredVariables: []string{"API_KEY", "DB_URL"},
AdditionalVariables: []string{"ADDITIONAL_VAR"},
EnvStruct: &MyConfig{},
}
config, err := gonvironment.EnsureAndInitEnvironment(options)
if err is not nil {
fmt.Printf("Error: %s\n", err)
os.Exit(1)
}
myConfig := config.(*MyConfig)
fmt.Printf("APIKey: %s, DatabaseURL: %s, Additional: %s\n", myConfig.APIKey, myConfig.DatabaseURL, myConfig.Additional)
}In this example, the MyConfig struct is initialized with values from environment variables, and any missing required environment variables will result in an error.
First open an issue in this repository.
React
Typescript
Django
Laravel
Facebook
Microsoft
Google
Alibaba
D3
Tencent