class Slack::Events::Request
def valid?
def valid? raise MissingSigningSecret unless signing_secret digest = OpenSSL::Digest.new('SHA256') signature_basestring = [version, timestamp, body].join(':') hex_hash = OpenSSL::HMAC.hexdigest(digest, signing_secret, signature_basestring) computed_signature = [version, hex_hash].join('=') computed_signature == signature end