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## Description This change adds support for nested object fields in HGE IR and Schema Cache, the Data Connectors backend and API, and the MongoDB agent. ### Data Connector API changes - The `/schema` endpoint response now includes an optional set of GraphQL type definitions. Table column types can refer to these definitions by name. - Queries can now include a new field type `object` which contains a column name and a nested query. This allows querying into a nested object within a field. ### MongoDB agent changes - Add support for querying into nested documents using the new `object` field type. ### HGE changes - The `Backend` type class has a new type family `XNestedObjects b` which controls whether or not a backend supports querying into nested objects. This is currently enabled only for the `DataConnector` backend. - For backends that support nested objects, the `FieldInfo` type gets a new constructor `FINestedObject`, and the `AnnFieldG` type gets a new constructor `AFNestedObject`. - If the DC `/schema` endpoint returns any custom GraphQL type definitions they are stored in the `TableInfo` for each table in the source. - During schema cache building, the function `addNonColumnFields` will check whether any column types match custom GraphQL object types stored in the `TableInfo`. If so, they are converted into `FINestedObject` instead of `FIColumn` in the `FieldInfoMap`. - When building the `FieldParser`s from `FieldInfo` (function `fieldSelection`) any `FINestedObject` fields are converted into nested object parsers returning `AFNestedObject`. - The `DataConnector` query planner converts `AFNestedObject` fields into `object` field types in the query sent to the agent. ## Limitations ### HGE not yet implemented: - Support for nested arrays - Support for nested objects/arrays in mutations - Support for nested objects/arrays in order-by - Support for filters (`where`) in nested objects/arrays - Support for adding custom GraphQL types via track table metadata API - Support for interface and union types - Tests for nested objects ### Mongo agent not yet implemented: - Generate nested object types from validation schema - Support for aggregates - Support for order-by - Configure agent port - Build agent in CI - Agent tests for nested objects and MongoDB agent PR-URL: https://github.com/hasura/graphql-engine-mono/pull/7844 GitOrigin-RevId: aec9ec1e4216293286a68f9b1af6f3f5317db423
37 lines
912 B
JSON
37 lines
912 B
JSON
{
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"name": "@hasura/dc-api-types",
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"version": "0.30.0",
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"description": "Hasura GraphQL Engine Data Connector Agent API types",
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"author": "Hasura (https://github.com/hasura/graphql-engine)",
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"license": "Apache-2.0",
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"repository": {
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"type": "git",
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"url": "git+https://github.com/hasura/graphql-engine.git"
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},
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"bugs": {
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"url": "https://github.com/hasura/graphql-engine/issues"
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},
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"homepage": "https://github.com/hasura/graphql-engine#readme",
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"keywords": [
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"hasura",
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"data-connectors"
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],
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"types": "./src/index.ts",
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"exports": "./src/index.ts",
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"files": [
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"./src",
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"./README.md"
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],
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"dependencies": {},
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"scripts": {
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"build": "tsc",
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"typecheck": "tsc --noEmit",
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"test": "echo \"Error: no test specified\" && exit 1"
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},
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"devDependencies": {
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"@tsconfig/node16": "^1.0.3",
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"@types/node": "^16.11.49",
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"typescript": "^4.7.4"
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}
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}
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