How to use the envalid.host function in envalid
To help you get started, we’ve selected a few envalid examples, based on popular ways it is used in public projects.
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flow-typed / flow-typed / definitions / npm / envalid_v4.x.x / flow_v0.104.x- / test_envalid_v4.x.x.js View on Github 
host,
json,
port,
num,
str,
url,
type ValidatorSpec
} from 'envalid'
const booleanValidatorSpec: ValidatorSpec = bool()
const numberValidatorSpec: ValidatorSpec = num()
const stringValidatorSpec: ValidatorSpec = str()
const jsonValidatorSpec: ValidatorSpec = json()
const urlValidatorSpec: ValidatorSpec = url()
const emailValidatorSpec: ValidatorSpec = email()
const hostValidatorSpec: ValidatorSpec = host()
const portValidatorSpec: ValidatorSpec = port()
const env1: { NODE_ENV: string, ... } = cleanEnv({ NODE_ENV: 'TEST' }, {
NODE_ENV: str()
})
// $ExpectError
const env2: { NODE_ENV: number, ... } = cleanEnv({ NODE_ENV: 'TEST' }, {
NODE_ENV: str()
})
// $ExpectError
const invalidBooleanValidatorSpec: ValidatorSpec = bool()envalid
Validation for your environment variables
