ElasticGraph is designed to be modular, with a small core, and many built-in extensions that extend that core for specific use cases. This minimizes exposure to vulnerabilities, reduces bloat, and makes ongoing upgrades easier. The libraries that ship with ElasticGraph can be broken down into several categories.
These libraries form the core backbone of ElasticGraph that is designed to run in a production deployment. Every ElasticGraph deployment will need to use all of these.
- elasticgraph: Bootstraps ElasticGraph projects.
- elasticgraph-admin: ElasticGraph gem that provides datastore administrative tasks, to keep a datastore up-to-date with an ElasticGraph schema.
- elasticgraph-datastore_core: ElasticGraph gem containing the core datastore support types and logic.
- elasticgraph-graphql: The ElasticGraph GraphQL query engine.
- elasticgraph-indexer: ElasticGraph gem that provides APIs to robustly index data into a datastore.
- elasticgraph-json_schema: ElasticGraph gem that provides JSON Schema validation.
- elasticgraph-schema_artifacts: ElasticGraph gem containing code related to generated schema artifacts.
- elasticgraph-support: ElasticGraph gem providing support utilities to the other ElasticGraph gems.
graph LR;
elasticgraph --> elasticgraph-support & thor
elasticgraph-admin --> elasticgraph-datastore_core & elasticgraph-indexer & elasticgraph-schema_artifacts & elasticgraph-support & rake
elasticgraph-datastore_core --> elasticgraph-schema_artifacts & elasticgraph-support
elasticgraph-graphql --> elasticgraph-datastore_core & elasticgraph-schema_artifacts & graphql
elasticgraph-indexer --> elasticgraph-datastore_core & elasticgraph-json_schema & elasticgraph-schema_artifacts & elasticgraph-support & hashdiff
elasticgraph-json_schema --> elasticgraph-support & json_schemer
elasticgraph-schema_artifacts --> elasticgraph-support
elasticgraph-support --> logger
style elasticgraph color: DodgerBlue;
style elasticgraph-admin color: DodgerBlue;
style elasticgraph-datastore_core color: DodgerBlue;
style elasticgraph-graphql color: DodgerBlue;
style elasticgraph-indexer color: DodgerBlue;
style elasticgraph-json_schema color: DodgerBlue;
style elasticgraph-schema_artifacts color: DodgerBlue;
style elasticgraph-support color: DodgerBlue;
style thor color: Red;
style rake color: Red;
style graphql color: Red;
style hashdiff color: Red;
style json_schemer color: Red;
style logger color: Red;
click graphql href "https://rubygems.org/gems/graphql"
click hashdiff href "https://rubygems.org/gems/hashdiff"
click json_schemer href "https://rubygems.org/gems/json_schemer"
click logger href "https://rubygems.org/gems/logger"
click rake href "https://rubygems.org/gems/rake"
click thor href "https://rubygems.org/gems/thor"
These libraries wrap the the core ElasticGraph libraries so that they can be deployed using AWS Lambda.
- elasticgraph-admin_lambda: ElasticGraph gem that wraps elasticgraph-admin in an AWS Lambda.
- elasticgraph-graphql_lambda: ElasticGraph gem that wraps elasticgraph-graphql in an AWS Lambda.
- elasticgraph-indexer_autoscaler_lambda: ElasticGraph gem that monitors OpenSearch CPU utilization to autoscale indexer lambda concurrency.
- elasticgraph-indexer_lambda: Provides an AWS Lambda interface for an elasticgraph API
- elasticgraph-lambda_support: ElasticGraph gem that supports running ElasticGraph using AWS Lambda.
graph LR;
elasticgraph-admin_lambda --> rake & elasticgraph-admin & elasticgraph-lambda_support
elasticgraph-graphql_lambda --> elasticgraph-graphql & elasticgraph-lambda_support
elasticgraph-indexer_autoscaler_lambda --> elasticgraph-datastore_core & elasticgraph-lambda_support & aws-sdk-lambda & aws-sdk-sqs & aws-sdk-cloudwatch & ox
elasticgraph-indexer_lambda --> elasticgraph-indexer & elasticgraph-lambda_support & aws-sdk-s3 & ox
elasticgraph-lambda_support --> elasticgraph-opensearch & faraday_middleware-aws-sigv4
style elasticgraph-admin_lambda color: DodgerBlue;
style elasticgraph-graphql_lambda color: DodgerBlue;
style elasticgraph-indexer_autoscaler_lambda color: DodgerBlue;
style elasticgraph-indexer_lambda color: DodgerBlue;
style elasticgraph-lambda_support color: DodgerBlue;
style rake color: Red;
style elasticgraph-admin color: Green;
style elasticgraph-graphql color: Green;
style elasticgraph-datastore_core color: Green;
style aws-sdk-lambda color: Red;
style aws-sdk-sqs color: Red;
style aws-sdk-cloudwatch color: Red;
style ox color: Red;
style elasticgraph-indexer color: Green;
style aws-sdk-s3 color: Red;
style elasticgraph-opensearch color: Green;
style faraday_middleware-aws-sigv4 color: Red;
click aws-sdk-cloudwatch href "https://rubygems.org/gems/aws-sdk-cloudwatch"
click aws-sdk-lambda href "https://rubygems.org/gems/aws-sdk-lambda"
click aws-sdk-s3 href "https://rubygems.org/gems/aws-sdk-s3"
click aws-sdk-sqs href "https://rubygems.org/gems/aws-sdk-sqs"
click faraday_middleware-aws-sigv4 href "https://rubygems.org/gems/faraday_middleware-aws-sigv4"
click ox href "https://rubygems.org/gems/ox"
click rake href "https://rubygems.org/gems/rake"
These libraries extend ElasticGraph to provide optional but commonly needed functionality.
- elasticgraph-apollo: An ElasticGraph extension that implements the Apollo federation spec.
- elasticgraph-health_check: An ElasticGraph extension that provides a health check for high availability deployments.
- elasticgraph-query_interceptor: An ElasticGraph extension for intercepting datastore queries.
- elasticgraph-query_registry: An ElasticGraph extension that supports safer schema evolution by limiting GraphQL queries based on a registry and validating registered queries against the schema.
graph LR;
elasticgraph-apollo --> elasticgraph-graphql & elasticgraph-support & graphql & apollo-federation
elasticgraph-health_check --> elasticgraph-datastore_core & elasticgraph-graphql & elasticgraph-support
elasticgraph-query_interceptor --> elasticgraph-graphql & elasticgraph-schema_artifacts
elasticgraph-query_registry --> elasticgraph-graphql & elasticgraph-support & graphql & rake
style elasticgraph-apollo color: DodgerBlue;
style elasticgraph-health_check color: DodgerBlue;
style elasticgraph-query_interceptor color: DodgerBlue;
style elasticgraph-query_registry color: DodgerBlue;
style elasticgraph-graphql color: Green;
style elasticgraph-support color: Green;
style graphql color: Red;
style apollo-federation color: Red;
style elasticgraph-datastore_core color: Green;
style elasticgraph-schema_artifacts color: Green;
style rake color: Red;
click apollo-federation href "https://rubygems.org/gems/apollo-federation"
click graphql href "https://rubygems.org/gems/graphql"
click rake href "https://rubygems.org/gems/rake"
These libraries adapt ElasticGraph to your choice of datastore (Elasticsearch or OpenSearch).
- elasticgraph-elasticsearch: Wraps the Elasticsearch client for use by ElasticGraph.
- elasticgraph-opensearch: Wraps the OpenSearch client for use by ElasticGraph.
graph LR;
elasticgraph-elasticsearch --> elasticgraph-support & elasticsearch & faraday & faraday-retry
elasticgraph-opensearch --> elasticgraph-support & faraday & faraday-retry & opensearch-ruby
style elasticgraph-elasticsearch color: DodgerBlue;
style elasticgraph-opensearch color: DodgerBlue;
style elasticgraph-support color: Green;
style elasticsearch color: Red;
style faraday color: Red;
style faraday-retry color: Red;
style opensearch-ruby color: Red;
click elasticsearch href "https://rubygems.org/gems/elasticsearch"
click faraday href "https://rubygems.org/gems/faraday"
click faraday-retry href "https://rubygems.org/gems/faraday-retry"
click opensearch-ruby href "https://rubygems.org/gems/opensearch-ruby"
These libraries are used for local development of ElasticGraph applications, but are not intended to be deployed to production (except for elasticgraph-rack).
elasticgraph-rack is used to boot ElasticGraph locally but can also be used to run ElasticGraph in any rack-compatible server (including a Rails application).
- elasticgraph-local: Provides support for developing and running ElasticGraph applications locally.
- elasticgraph-rack: ElasticGraph gem for serving an ElasticGraph GraphQL endpoint using rack.
- elasticgraph-schema_definition: ElasticGraph gem that provides the schema definition API and generates schema artifacts.
graph LR;
elasticgraph-local --> elasticgraph-admin & elasticgraph-graphql & elasticgraph-indexer & elasticgraph-rack & elasticgraph-schema_definition & rackup & rake & webrick
elasticgraph-rack --> elasticgraph-graphql & rack
elasticgraph-schema_definition --> elasticgraph-graphql & elasticgraph-indexer & elasticgraph-json_schema & elasticgraph-schema_artifacts & elasticgraph-support & graphql & rake
style elasticgraph-local color: DodgerBlue;
style elasticgraph-rack color: DodgerBlue;
style elasticgraph-schema_definition color: DodgerBlue;
style elasticgraph-admin color: Green;
style elasticgraph-graphql color: Green;
style elasticgraph-indexer color: Green;
style rackup color: Red;
style rake color: Red;
style webrick color: Red;
style rack color: Red;
style elasticgraph-json_schema color: Green;
style elasticgraph-schema_artifacts color: Green;
style elasticgraph-support color: Green;
style graphql color: Red;
click graphql href "https://rubygems.org/gems/graphql"
click rack href "https://rubygems.org/gems/rack"
click rackup href "https://rubygems.org/gems/rackup"
click rake href "https://rubygems.org/gems/rake"
click webrick href "https://rubygems.org/gems/webrick"