Verifying Nylas webhooks using Ruby

verify.rb

require 'openssl'

# verify_webhook: check that a webhook was sent by a Nylas server.
# params: 
#  - request: the request object you get from Rails,
#  - nylas_app_secret: your app secret.
def verify_webhook(request, nylas_app_secret)
	digest = OpenSSL::Digest.new('sha256')
        data = request.body.read
	digest = OpenSSL::HMAC.hexdigest(digest, nylas_app_secret, data)
	digest == request.headers['X-Nylas-Signature']

still works!