Add elasticgraph-protobuf schema artifacts

AGENTS.md

@@ -85,9 +85,10 @@ All gems follow the pattern: `elasticgraph-[name]/` containing:
 - `elasticgraph-elasticsearch`: Elasticsearch client wrapper
 - `elasticgraph-opensearch`: OpenSearch client wrapper
 
-**Extensions** (5 gems): Optional functionality
+**Extensions** (6 gems): Optional functionality
 - `elasticgraph-apollo`: Apollo Federation support
 - `elasticgraph-health_check`: Health checks
+- `elasticgraph-json_ingestion`: JSON Schema ingestion serializer
 - `elasticgraph-query_interceptor`: Query interception
 - `elasticgraph-query_registry`: Source-controlled query registry
 - `elasticgraph-warehouse`: Data warehouse ingestion

CODEBASE_OVERVIEW.md

@@ -111,6 +111,7 @@ graph LR;
     rackup["rackup"];
     rake["rake"];
     webrick["webrick"];
+    elasticgraph-json_ingestion["eg-json_ingestion"];
     elasticgraph-schema_artifacts["eg-schema_artifacts"];
     graphql["graphql"];
     elasticgraph --> elasticgraph-support;
@@ -125,6 +126,7 @@ graph LR;
     elasticgraph-local --> webrick;
     elasticgraph-schema_definition --> elasticgraph-graphql;
     elasticgraph-schema_definition --> elasticgraph-indexer;
+    elasticgraph-schema_definition --> elasticgraph-json_ingestion;
     elasticgraph-schema_definition --> elasticgraph-schema_artifacts;
     elasticgraph-schema_definition --> elasticgraph-support;
     elasticgraph-schema_definition --> graphql;
@@ -141,6 +143,7 @@ graph LR;
     class rackup externalGemCatStyle;
     class rake externalGemCatStyle;
     class webrick externalGemCatStyle;
+    class elasticgraph-json_ingestion otherEgGemStyle;
     class elasticgraph-schema_artifacts otherEgGemStyle;
     class graphql externalGemCatStyle;
     click thor href "https://rubygems.org/gems/thor" "Open on RubyGems.org" _blank;
@@ -192,12 +195,14 @@ graph LR;
     click opensearch-ruby href "https://rubygems.org/gems/opensearch-ruby" "Open on RubyGems.org" _blank;
 ```
 
-### Extensions (5 gems)
+### Extensions (7 gems)
 
 These libraries extend ElasticGraph to provide optional but commonly needed functionality.
 
 * [elasticgraph-apollo](elasticgraph-apollo/README.md): Transforms an ElasticGraph project into an Apollo subgraph.
 * [elasticgraph-health_check](elasticgraph-health_check/README.md): Provides a health check for high availability ElasticGraph deployments.
+* [elasticgraph-json_ingestion](elasticgraph-json_ingestion/README.md): Pluggable JSON Schema ingestion serializer for ElasticGraph.
+* [elasticgraph-protobuf](elasticgraph-protobuf/README.md): Generates Protocol Buffers schema artifacts from ElasticGraph schemas.
 * [elasticgraph-query_interceptor](elasticgraph-query_interceptor/README.md): Intercepts ElasticGraph datastore queries.
 * [elasticgraph-query_registry](elasticgraph-query_registry/README.md): Provides a source-controlled query registry for ElasticGraph applications.
 * [elasticgraph-warehouse](elasticgraph-warehouse/README.md): Extends ElasticGraph to support ingestion into a data warehouse.
@@ -216,6 +221,8 @@ graph LR;
     apollo-federation["apollo-federation"];
     elasticgraph-health_check["eg-health_check"];
     elasticgraph-datastore_core["eg-datastore_core"];
+    elasticgraph-json_ingestion["eg-json_ingestion"];
+    elasticgraph-protobuf["eg-protobuf"];
     elasticgraph-query_interceptor["eg-query_interceptor"];
     elasticgraph-schema_artifacts["eg-schema_artifacts"];
     elasticgraph-query_registry["eg-query_registry"];
@@ -228,6 +235,8 @@ graph LR;
     elasticgraph-health_check --> elasticgraph-datastore_core;
     elasticgraph-health_check --> elasticgraph-graphql;
     elasticgraph-health_check --> elasticgraph-support;
+    elasticgraph-json_ingestion --> elasticgraph-support;
+    elasticgraph-protobuf --> elasticgraph-support;
     elasticgraph-query_interceptor --> elasticgraph-graphql;
     elasticgraph-query_interceptor --> elasticgraph-schema_artifacts;
     elasticgraph-query_registry --> elasticgraph-graphql;
@@ -242,6 +251,8 @@ graph LR;
     class apollo-federation externalGemCatStyle;
     class elasticgraph-health_check targetGemStyle;
     class elasticgraph-datastore_core otherEgGemStyle;
+    class elasticgraph-json_ingestion targetGemStyle;
+    class elasticgraph-protobuf targetGemStyle;
     class elasticgraph-query_interceptor targetGemStyle;
     class elasticgraph-schema_artifacts otherEgGemStyle;
     class elasticgraph-query_registry targetGemStyle;

Gemfile.lock

@@ -128,6 +128,12 @@ PATH
       elasticgraph-support (= 1.1.1.pre)
       hashdiff (~> 1.2, >= 1.2.1)
 
+PATH
+  remote: elasticgraph-json_ingestion
+  specs:
+    elasticgraph-json_ingestion (1.1.1.pre)
+      elasticgraph-support (= 1.1.1.pre)
+
 PATH
   remote: elasticgraph-lambda_support
   specs:
@@ -157,6 +163,12 @@ PATH
       faraday-retry (~> 2.4)
       opensearch-ruby (~> 3.4)
 
+PATH
+  remote: elasticgraph-protobuf
+  specs:
+    elasticgraph-protobuf (1.1.1.pre)
+      elasticgraph-support (= 1.1.1.pre)
+
 PATH
   remote: elasticgraph-query_interceptor
   specs:
@@ -192,6 +204,7 @@ PATH
     elasticgraph-schema_definition (1.1.1.pre)
       elasticgraph-graphql (= 1.1.1.pre)
       elasticgraph-indexer (= 1.1.1.pre)
+      elasticgraph-json_ingestion (= 1.1.1.pre)
       elasticgraph-schema_artifacts (= 1.1.1.pre)
       elasticgraph-support (= 1.1.1.pre)
       graphql (~> 2.5.22)
@@ -696,9 +709,11 @@ DEPENDENCIES
   elasticgraph-indexer (= 1.1.1.pre)!
   elasticgraph-indexer_autoscaler_lambda (= 1.1.1.pre)!
   elasticgraph-indexer_lambda (= 1.1.1.pre)!
+  elasticgraph-json_ingestion (= 1.1.1.pre)!
   elasticgraph-lambda_support (= 1.1.1.pre)!
   elasticgraph-local (= 1.1.1.pre)!
   elasticgraph-opensearch (= 1.1.1.pre)!
+  elasticgraph-protobuf (= 1.1.1.pre)!
   elasticgraph-query_interceptor (= 1.1.1.pre)!
   elasticgraph-query_registry (= 1.1.1.pre)!
   elasticgraph-rack (= 1.1.1.pre)!
@@ -787,9 +802,11 @@ CHECKSUMS
   elasticgraph-indexer (1.1.1.pre)
   elasticgraph-indexer_autoscaler_lambda (1.1.1.pre)
   elasticgraph-indexer_lambda (1.1.1.pre)
+  elasticgraph-json_ingestion (1.1.1.pre)
   elasticgraph-lambda_support (1.1.1.pre)
   elasticgraph-local (1.1.1.pre)
   elasticgraph-opensearch (1.1.1.pre)
+  elasticgraph-protobuf (1.1.1.pre)
   elasticgraph-query_interceptor (1.1.1.pre)
   elasticgraph-query_registry (1.1.1.pre)
   elasticgraph-rack (1.1.1.pre)

config/docker_demo/Dockerfile

@@ -16,8 +16,10 @@ COPY elasticgraph-datastore_core elasticgraph-datastore_core/
 COPY elasticgraph-graphiql elasticgraph-graphiql/
 COPY elasticgraph-graphql elasticgraph-graphql/
 COPY elasticgraph-indexer elasticgraph-indexer/
+COPY elasticgraph-json_ingestion elasticgraph-json_ingestion/
 COPY elasticgraph-local elasticgraph-local/
 COPY elasticgraph-opensearch elasticgraph-opensearch/
+COPY elasticgraph-protobuf elasticgraph-protobuf/
 COPY elasticgraph-query_registry elasticgraph-query_registry/
 COPY elasticgraph-rack elasticgraph-rack/
 COPY elasticgraph-schema_artifacts elasticgraph-schema_artifacts/

config/site/support/doctest_helper.rb

@@ -9,6 +9,7 @@
 require "elastic_graph/apollo/schema_definition/api_extension"
 require "elastic_graph/schema_artifacts/runtime_metadata/schema_element_names"
 require "elastic_graph/schema_definition/api"
+require "elastic_graph/schema_definition/extension_module_support"
 require "elastic_graph/schema_definition/schema_artifact_manager"
 require "elastic_graph/warehouse/schema_definition/api_extension"
 require "rspec/mocks"
@@ -60,7 +61,9 @@ module ElasticGraph
         @api = SchemaDefinition::API.new(
           SchemaArtifacts::RuntimeMetadata::SchemaElementNames.new(form: :camelCase, overrides: {}),
           true,
-          extension_modules: extension_modules
+          extension_modules: SchemaDefinition::ExtensionModuleSupport.build_api_extension_modules(
+            extension_modules: extension_modules
+          )
         )
 
         # This is required in all schemas, but we don't want to have to put in all our examples,
@@ -95,7 +98,8 @@ module ElasticGraph
       ElasticGraph.define_schema do |schema|
         # `schema.json_schema_version` raises an error when the version is set more than once.
         # By default we set it above. Here we clear it to allow our example to set it.
-        schema.state.json_schema_version = nil
+        schema.state.ingestion_serializer_state.delete(:json_schema_version)
+        schema.state.ingestion_serializer_state.delete(:json_schema_version_setter_location)
       end
     end
 

elasticgraph-apollo/apollo_tests_implementation/Dockerfile

@@ -14,6 +14,7 @@ COPY elasticgraph-elasticsearch /web/elasticgraph-elasticsearch
 COPY elasticgraph-graphiql /web/elasticgraph-graphiql
 COPY elasticgraph-graphql /web/elasticgraph-graphql
 COPY elasticgraph-indexer /web/elasticgraph-indexer
+COPY elasticgraph-json_ingestion /web/elasticgraph-json_ingestion
 COPY elasticgraph-rack /web/elasticgraph-rack
 COPY elasticgraph-schema_artifacts /web/elasticgraph-schema_artifacts
 COPY elasticgraph-schema_definition /web/elasticgraph-schema_definition

elasticgraph-apollo/apollo_tests_implementation/Gemfile

@@ -16,6 +16,7 @@ source "https://rubygems.org"
   graphiql
   graphql
   indexer
+  json_ingestion
   rack
   schema_artifacts
   schema_definition

elasticgraph-json_ingestion/.rspec

@@ -0,0 +1 @@
+../spec_support/subdir_dot_rspec

elasticgraph-json_ingestion/.yardopts

@@ -0,0 +1 @@
+../config/site/yardopts

elasticgraph-json_ingestion/Gemfile

@@ -0,0 +1 @@
+../Gemfile

elasticgraph-json_ingestion/LICENSE.txt

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2024 - 2026 Block, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

elasticgraph-json_ingestion/README.md

@@ -0,0 +1,27 @@
+# ElasticGraph::JSONIngestion
+
+Pluggable JSON Schema ingestion serializer for ElasticGraph.
+
+This gem extracts the JSON Schema generation and validation logic from ElasticGraph's core into a
+pluggable extension, following the same pattern as `elasticgraph-warehouse` and `elasticgraph-apollo`.
+This is the first step toward supporting alternative ingestion serializers (e.g., Protocol Buffers).
+
+Higher-level schema-definition entry points use the JSON Schema serializer by default for backward
+compatibility, so existing users do not need configuration changes.
+
+## Dependency Diagram
+
+```mermaid
+graph LR;
+    classDef targetGemStyle fill:#FADBD8,stroke:#EC7063,color:#000,stroke-width:2px;
+    classDef otherEgGemStyle fill:#A9DFBF,stroke:#2ECC71,color:#000;
+    classDef externalGemStyle fill:#E0EFFF,stroke:#70A1D7,color:#2980B9;
+    elasticgraph-json_ingestion["elasticgraph-json_ingestion"];
+    class elasticgraph-json_ingestion targetGemStyle;
+    elasticgraph-support["elasticgraph-support"];
+    elasticgraph-json_ingestion --> elasticgraph-support;
+    class elasticgraph-support otherEgGemStyle;
+    elasticgraph-schema_definition["elasticgraph-schema_definition"];
+    elasticgraph-schema_definition --> elasticgraph-json_ingestion;
+    class elasticgraph-schema_definition otherEgGemStyle;
+```

elasticgraph-json_ingestion/elasticgraph-json_ingestion.gemspec

@@ -0,0 +1,41 @@
+# Copyright 2024 - 2026 Block, Inc.
+#
+# Use of this source code is governed by an MIT-style
+# license that can be found in the LICENSE file or at
+# https://opensource.org/licenses/MIT.
+#
+# frozen_string_literal: true
+
+require_relative "../elasticgraph-support/lib/elastic_graph/version"
+
+Gem::Specification.new do |spec|
+  spec.name = "elasticgraph-json_ingestion"
+  spec.version = ElasticGraph::VERSION
+  spec.authors = ["Josh Wilson", "Myron Marston", "Block Engineering"]
+  spec.email = ["joshuaw@squareup.com"]
+  spec.homepage = "https://block.github.io/elasticgraph/"
+  spec.license = "MIT"
+  spec.summary = "Pluggable JSON Schema ingestion serializer for ElasticGraph."
+
+  spec.metadata = {
+    "bug_tracker_uri" => "https://github.com/block/elasticgraph/issues",
+    "changelog_uri" => "https://github.com/block/elasticgraph/releases/tag/v#{ElasticGraph::VERSION}",
+    "documentation_uri" => "https://block.github.io/elasticgraph/api-docs/v#{ElasticGraph::VERSION}/",
+    "homepage_uri" => "https://block.github.io/elasticgraph/",
+    "source_code_uri" => "https://github.com/block/elasticgraph/tree/v#{ElasticGraph::VERSION}/#{spec.name}",
+    "gem_category" => "extension"
+  }
+
+  spec.files = Dir.chdir(File.expand_path(__dir__)) do
+    `git ls-files -z`.split("\x0").reject do |f|
+      (f == __FILE__) || f.match(%r{\A(?:(?:test|spec|features|sig)/|\.(?:git|travis|circleci)|appveyor)})
+    end - [".rspec", "Gemfile", ".yardopts"]
+  end
+
+  spec.required_ruby_version = [">= 3.4", "< 4.1"]
+
+  # This extension is loaded by `elasticgraph-schema_definition` at schema-definition time, so we intentionally
+  # avoid a runtime dependency here to keep the dependency direction acyclic across gems.
+  spec.add_development_dependency "elasticgraph-schema_definition", ElasticGraph::VERSION
+  spec.add_dependency "elasticgraph-support", ElasticGraph::VERSION
+end

elasticgraph-json_ingestion/lib/elastic_graph/json_ingestion.rb

@@ -0,0 +1,19 @@
+# Copyright 2024 - 2026 Block, Inc.
+#
+# Use of this source code is governed by an MIT-style
+# license that can be found in the LICENSE file or at
+# https://opensource.org/licenses/MIT.
+#
+# frozen_string_literal: true
+
+module ElasticGraph
+  # Pluggable JSON Schema ingestion serializer for ElasticGraph.
+  #
+  # This gem extracts the JSON Schema generation and validation logic from ElasticGraph's
+  # core into a pluggable extension, following the same pattern as `elasticgraph-warehouse`
+  # and `elasticgraph-apollo`. This is the first step toward supporting alternative ingestion
+  # serializers (e.g., Protocol Buffers). Higher-level schema-definition entry points use it by
+  # default for backward compatibility.
+  module JSONIngestion
+  end
+end