README
¶
env
Agnostic config reads/writes: Get/GetRequired take an injected Reader,
so this package never imports os and stays wasm-safe. A server binary
injects osenv.Reader() (process env vars, falling back to a .env file);
an edge binary injects a Reader over its own platform binding — the same
call works against either.
import (
"github.com/tinywasm/env"
"github.com/tinywasm/env/osenv"
)
dsn, err := env.GetRequired(osenv.Reader(), "DATABASE_URL")
osenv also carries Arg(key) (CLI flag lookup via os.Args) and
Writer() (sets a value in the current process's own environment) — both
process-only, with no edge equivalent.
Documentation
¶
Overview ¶
Package env reads and writes configuration through an injected source, agnostic of where that source lives. This keeps the package wasm-safe (no "os" import): a server binary injects a Reader/Writer backed by the process environment (see the osenv subpackage), while an edge binary injects one backed by its own platform binding (e.g. Cloudflare env vars) — the same Get/GetRequired call works against either.
Index ¶
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
Types ¶
type Reader ¶ added in v0.0.7
Reader returns the value of key from whatever source it wraps, or "" if key is unset there. "" always means "not found" — no separate ok bool, matching the rest of the ecosystem's convention.
Source Files
Directories
¶
| Path | Synopsis |
|---|---|
|
Package osenv provides the process-backed env.Reader/env.Writer: real environment variables, falling back to a .env file, plus CLI argument lookup.
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Package osenv provides the process-backed env.Reader/env.Writer: real environment variables, falling back to a .env file, plus CLI argument lookup. |