itconfig
Simple configuration with macro for rust application.
Motivation
I began to use rust with web programming experience where environment variables are widely used and often there are more then 50 of them. First I looked at already created libraries. But there it's necessary to initialise structure that needs to be moved to each function where you need variable. It uses little bit memory, but configuration lifetime is as long as application lifetime. Because of it I decided to create my own library.
Installation
These macros require a Rust compiler version 1.31 or newer.
Add itconfig = { version = "1.0", features = ["macro"] }
as a dependency in Cargo.toml
.
Cargo.toml
example:
[]
= "my-crate"
= "0.1.0"
= ["Me <user@rust-lang.org>"]
[]
= { = "1.0", = ["macro"] }
Basic usage
use config;
use env;
//use dotenv::dotenv;
config!
Macro is an optional feature, disabled by default. You can use this library without macro.
use *;
use env;
// use dotenv::dotenv;
Available features
- default - ["primitives"]
- macro - Activates
config!
macros for easy configure web application. - primitives - Group for features:
numbers
andbool
. - numbers - Group for features:
int
,uint
andfloat
. - int - Group for features:
i8
,i16
,i32
,i64
,i128
andisize
. - uint - Group for features:
u8
,u16
,u32
,u64
,u128
andusize
. - float - Group for features:
f32
andf64
- i8 - impl EnvString for
i8
type - i16 - impl EnvString for
i16
type - i32 - impl EnvString for
i32
type - i64 - impl EnvString for
i64
type - i128 - impl EnvString for
i128
type - isize - impl EnvString for
isize
type - u8 - impl EnvString for
u8
type - u16 - impl EnvString for
u16
type - u32 - impl EnvString for
u32
type - u64 - impl EnvString for
u64
type - u128 - impl EnvString for
u128
type - usize - impl EnvString for
usize
type - f32 - impl EnvString for
f32
type - f64 - impl EnvString for
f64
type - bool - impl EnvString for
bool
type - json_array - Add EnvString impl for vector type (uses optional
serde_json
package). ⚠ DEPRECATED