EnvVar
EnvVar middleware for Fiber exposes environment variables with configurable options.
Signatures
func New(config ...Config) fiber.Handler
Examples
Import the middleware package:
import (
"github.com/gofiber/fiber/v3"
"github.com/gofiber/fiber/v3/middleware/envvar"
)
Once your Fiber app is initialized, configure the middleware as shown:
// Initialize default config (exports no variables)
app.Use("/expose/envvars", envvar.New())
// Or extend your config for customization
app.Use("/expose/envvars", envvar.New(
envvar.Config{
ExportVars: map[string]string{"testKey": "", "testDefaultKey": "testDefaultVal"},
}),
)
note
Mount the middleware on a path; it cannot be used without one.
Response
Sample response:
{
"vars": {
"someEnvVariable": "someValue",
"anotherEnvVariable": "anotherValue"
}
}
Config
Property | Type | Description | Default |
---|---|---|---|
ExportVars | map[string]string | ExportVars lists the environment variables to expose. | nil |
Default Config
Config{}
// Exports no environment variables