README
¶
env
Auto-tagged env access: !wasm reads os.Getenv (+ .env fallback), wasm reads Cloudflare context.env via syscall/js. No injection — the build tag selects the implementation. tinywasm/fmt is the only dep, os never leaks into wasm.
import "github.com/tinywasm/env"
port := env.Get("PORT") // "" if unset
dsn, err := env.Require("DATABASE_URL") // error if unset
host := env.GetOr("HOST", "localhost")
if v, ok := env.Lookup("KEY"); ok { ... }
env.Set("KEY", "value") // !wasm only
flag := env.Arg("port") // !wasm only, -port=8080 / -port 8080
Low-level .env path override: env.LookupAt("KEY", "/path/to/.env").
Wasm target is Cloudflare Workers (context.env); other wasm targets get "".
Documentation
¶
Overview ¶
Package env provides auto-tagged environment access: on !wasm it reads the process environment (os.Getenv + .env fallback), on wasm it reads Cloudflare's context.env via syscall/js. No injection, no Reader — the build tag selects the implementation.
Index ¶
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
func Arg ¶ added in v0.0.2
Arg returns the value for -key=value or -key value in os.Args (skipping argv[0]). Only available on !wasm; wasm has no argv.
func Lookup ¶ added in v0.0.8
Lookup returns the value of key from the process environment, falling back to a .env file in the working directory. The bool indicates if the key was found.
func LookupAt ¶ added in v0.0.8
LookupAt is Lookup with an explicit .env path, for callers not running from the project root.
Types ¶
This section is empty.
Source Files