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Verify env vars with Node.js
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ARR1 = "value1 value2 value3" | |
ANOTHER = "test" | |
OPTIONAL_EXAMPLE = "optional test" |
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export enum RequiredEnvVar { | |
ARR1 = 'ARR1', | |
ANOTHER = 'ANOTHER' | |
} | |
export enum OptionalEnvVar { | |
OPTIONAL_EXAMPLE = 'OPTIONAL_EXAMPLE' | |
} | |
export type EnvVar = RequiredEnvVar | OptionalEnvVar | |
export const loadOptionalEnvVar = (key: EnvVar): string | undefined => | |
process.env[key] | |
export const loadEnvVar = (key: RequiredEnvVar): string => | |
loadOptionalEnvVar(key) as string | |
export const loadOptionalEnvVarArray = ( | |
key: EnvVar, | |
separator = ' ' | |
): string[] | undefined => { | |
const env = process.env[key] | |
return env?.split(separator) | |
} | |
export const loadEnvArray = (key: RequiredEnvVar, separator = ' '): string[] => | |
loadOptionalEnvVarArray(key, separator) as string[] | |
/** Verifies that all required environment variables exist. */ | |
export const envVarsAreCorrect = (): boolean => { | |
return ( | |
Object.values(RequiredEnvVar).every(key => !!loadEnvVar(key)) && | |
Object.values(OptionalEnvVar).every(key => !!loadOptionalEnvVar(key)) | |
) | |
} |
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