Google::Cloud::Bigquery::Auth

AUDIENCE = "https://www.googleapis.com/oauth2/v4/token"

DEFAULT_USER_AGENT = "Google on Crystal"

EXPIRY = 60.seconds

GOOGLE_URI = URI.parse("https://www.googleapis.com")

SIGNING_ALGORITHM = JWT::Algorithm::RS256

TOKEN_PATH = "/oauth2/v4/token"

TOKENS_CACHE = {} of String => Token

new(issuer : String, signing_key : String, scopes : String | Array(String), sub : String = "", user_agent : String = DEFAULT_USER_AGENT)

issuer=(issuer : String)

signing_key=(signing_key : String)

user_agent=(user_agent : String)