codesnips

twelve-factor

go 
package appconfig

import (
	"flag"
	"io"
	"os"

Parsing and Validating CLI Flags into a Typed Config Struct in Go

cli flags configuration
by codesnips 3 tabs
rust 
use serde::{Deserialize, Serialize};

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct AppConfig {
    #[serde(default)]
    pub server: ServerConfig,

Layered Config Loading From TOML File and Environment Variables in Rust

config serde toml
by codesnips 3 tabs
typescript 
import { z } from "zod";

const booleanFromString = z
  .string()
  .transform((v) => v.trim().toLowerCase())
  .pipe(z.enum(["true", "false", "1", "0"]))

Type-Safe Environment Variable Parsing and Validation With Zod

config zod environment
by codesnips 3 tabs
go 
package config

import (
	"fmt"
	"os"
	"strconv"

Load Go Configuration From Environment Variables With Typed Defaults

go configuration environment-variables
by codesnips 3 tabs