Config

- case-insensitive by default
- support validation
- support partial validation

``
constructor(config: object, options?: Partial);
`

- options:
- caseSensitive - default false
- validation - object { rules } - rules should be valid ValidatorJs rules
- get - default { allowed: false, separator: '.' }, allow get config like cong.get('db.userName')
- logger - TBD, api in progress

- methods:
- public merge(obj: Partial): Config
- public get(path: string, defaultValue?: any) - return config value
- public getConfig(): ConfigSchema - return config object
- public validate(confPart?: any) - @throws Error
- public getValidationErrors(path?: string): TBD

example
`
const Config = require('kuconf').Config;

const conf = new Config({
db: {
username: 'username',
password: 'password',
},
redis: {
},
}, {
validation: {
rules: {
db: {
userName: 'required|string',
password: 'required|string',
},
redis: {
host: 'required|string',
},
},
},
});

const config = conf.getConfig();

console.log( config.db.userName === config.db.username ); // true
try {
conf.validate();
} catch (e) {
console.log(e.message); // {"errors":{"redis.host":["The redis.host field is required."]}}
}
conf.validate(config.db); // no errors

try {
conf.validate(config.redis);
} catch (e) {
console.log(e.message); // {"errors":{"redis.host":["The redis.host field is required."]}}
}

`

Parsers

EnvParser

`
class EnvParser(params?: Partial);
`

- params:
- prefix - default empty
- delimiter - default '__'
- ignoreOneLodash - if want user case-insensitive config object, it may be useful just remove remove all '_' from key CLIENT_NAME => CLIENTNAME
- lower - all keys will be in lower case
- format - format key function key => newFormatedKey, if defined params ignoreOneLodash and lower will be ignored


example
`
import EnvParser from '../parsers/EnvParser';

process.env.TEST__DB__USERNAME = 'username';
process.env.TEST__DB__PASSWORD = 'password';
process.env.TEST__DB__REPLICATION__WRITE__HOST = 'write.example.com';
process.env.TEST__DB__REPLICATION__READ__0__HOST = 'read0.example.com';
process.env.TEST__DB__REPLICATION__READ__1__HOST = 'read1.example.com';

const env = new EnvParser({
prefix: 'TEST__',
});
console.log(JSON.stringify(env.get(), null, 2));
`

out
`
{
"db": {
"username": "username",
"password": "password",
"replication": {
"write": {
"host": "write.example.com"
},
"read": [
{
"host": "read0.example.com"
},
{
"host": "read1.example.com"
}
]
}
}
}
``