Wow aggregate discovery

Discovery is a generator behavior, not a public AggregateResolver API. A dotted operation name alone is insufficient. The table reflects the current implementation, including component request-body references and response-reference aliases.

Recognition matrix

Input	Recognized	Missing/wrong shape
Root tags	A tag named exactly context.aggregate, with two nonempty parts	Operation tags alone do not seed aggregates
Command operationId	Exactly three dot-separated parts; last part is command name	Missing/wrong part count ignored; wow.command.send excluded
Command response	responses['200'].$ref directly or by response-component alias chain reaches #/components/responses/wow.CommandOk	Inline equivalent or 201-only response does not identify a command; cycles throw
Command body	Inline RequestBody or resolved component requestBody, with application/json schema $ref to a resolvable model	Missing/non-reference JSON schema is skipped
State operation	operationId ends .snapshot_state.single; 200 application/json schema is a reference	No state means aggregate excluded from final set
Fields operation	operationId ends .snapshot.count; request body carries x-wow-query-fields: { $ref: ... }, or JSON condition schema has properties.field reference	No fields means aggregate excluded; malformed expected shape may throw
Operation tags	Must match the seeded root tag for command/state/fields to attach	Unmatched tags ignored
Events (optional)	.event.list_query; response array items reference stream schema with properties.body.items.anyOf; variants contain name.const and body reference	Absence produces empty event union; malformed nested structure can throw

The resolver requires both state and fields; commands and events may be empty. The two-part root tag determines the context/aggregate; operationId text and tags are not a semantic consistency validator. info['x-wow-context-alias'] affects ordinary client base paths separately.

Complete minimal input

Save this as wow.json, then use the same CLI invocation with -i ./wow.json. It deliberately uses an inline command RequestBody, a 200 CommandOk reference, and both required query operations. The result should contain commandClient.ts and queryClient.ts beneath the shop/order namespace.

{
  "openapi": "3.0.3",
  "info": {
    "title": "Orders",
    "version": "1"
  },
  "tags": [
    {
      "name": "shop.order"
    }
  ],
  "paths": {
    "/orders": {
      "post": {
        "operationId": "shop.order.create",
        "tags": ["shop.order"],
        "requestBody": {
          "content": {
            "application/json": {
              "schema": {
                "$ref": "#/components/schemas/shop.CreateOrder"
              }
            }
          }
        },
        "responses": {
          "200": {
            "$ref": "#/components/responses/wow.CommandOk"
          }
        }
      }
    },
    "/orders/state": {
      "post": {
        "operationId": "shop.order.snapshot_state.single",
        "tags": ["shop.order"],
        "responses": {
          "200": {
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/shop.OrderState"
                }
              }
            }
          }
        }
      }
    },
    "/orders/count": {
      "post": {
        "operationId": "shop.order.snapshot.count",
        "tags": ["shop.order"],
        "requestBody": {
          "content": {
            "application/json": {
              "schema": {
                "$ref": "#/components/schemas/shop.Condition"
              }
            }
          },
          "x-wow-query-fields": {
            "$ref": "#/components/schemas/shop.OrderFields"
          }
        },
        "responses": {
          "200": {
            "description": "Count",
            "content": {
              "application/json": {
                "schema": {
                  "type": "integer"
                }
              }
            }
          }
        }
      }
    }
  },
  "components": {
    "schemas": {
      "shop.CreateOrder": {
        "type": "object",
        "properties": {
          "name": {
            "type": "string"
          }
        },
        "required": ["name"]
      },
      "shop.OrderState": {
        "type": "object",
        "properties": {
          "name": {
            "type": "string"
          }
        }
      },
      "shop.OrderFields": {
        "type": "string",
        "enum": ["name"]
      },
      "shop.Condition": {
        "type": "object",
        "properties": {
          "field": {
            "$ref": "#/components/schemas/shop.OrderFields"
          }
        }
      }
    },
    "responses": {
      "wow.CommandOk": {
        "description": "Accepted"
      }
    }
  }
}

Implementation sources

packages/generator/src/aggregate/aggregateResolver.ts:51

packages/generator/src/aggregate/utils.ts:27

packages/generator/src/utils/components.ts:25