Yeah! You can have a look at this docker-compose file. You will find how to set-up a lambda service running along with Alpha and Zero. Notice how the --graphql_lambda_url flag is passed to the Alpha.
These files will also be useful:
- Sample schema
-
Sample JS script (specially the
newAuthorfunction inside this script)
The documentation for lambda is not yet there, but it would surely be out by 20.11 release.