This example based on next resourses:
- https://medium.com/@wesselsbernd/bff-back-end-for-front-end-architecture-as-of-may-2019-5d09b913a8ed
- https://www.youtube.com/watch?v=rjiiNpJzOYk
.env file should include:
USER_POOL_ID=
USER_POOL_AWS_REGION=
POST_TABLE=
Appsync direct lambda support issue and workaround: pulumi/pulumi-aws#1081 hashicorp/terraform-provider-aws#14488