Read Models projections by ReadModel query

common/changes/@boostercloud/framework-core/read_models_projections_by_readmodel_query_2024-04-19-15-13.json

@@ -0,0 +1,10 @@
+{
+  "changes": [
+    {
+      "packageName": "@boostercloud/framework-core",
+      "comment": "Read Models projections by ReadModel query",
+      "type": "minor"
+    }
+  ],
+  "packageName": "@boostercloud/framework-core"
+}

packages/framework-common-helpers/src/retrier.ts

@@ -10,7 +10,7 @@ import { Class, Logger } from '@boostercloud/framework-types'
  * @returns The result of the first successful retry.
  */
 export async function retryIfError<TReturn>(
-  logicToRetry: () => Promise<TReturn>,
+  logicToRetry: (tryNumber?: number) => Promise<TReturn>,
   errorClassThatRetries: Class<Error>,
   logger?: Logger,
   maxRetries = 1000
@@ -20,7 +20,7 @@ export async function retryIfError<TReturn>(
   for (tryNumber = 1; tryNumber <= maxRetries; tryNumber++) {
     try {
       logger?.debug(`[retryIfError] Try number ${tryNumber}`)
-      const result = await logicToRetry()
+      const result = await logicToRetry(tryNumber)
       logger?.debug(`[retryIfError] Succeeded after ${tryNumber} retries`)
       return result
     } catch (e) {

packages/framework-core/src/booster-event-dispatcher.ts

@@ -1,8 +1,8 @@
 import { BoosterConfig, TraceActionTypes } from '@boostercloud/framework-types'
 import { EventStore } from './services/event-store'
 import { RawEventsParser } from './services/raw-events-parser'
-import { ReadModelStore } from './services/read-model-store'
 import { getLogger } from '@boostercloud/framework-common-helpers'
+import { ReadModelStore } from './services/read-model-store'
 import { Trace } from './instrumentation'
 import { BoosterEventProcessor } from './booster-event-processor'
 

packages/framework-core/src/booster-read-models-reader.ts

@@ -12,9 +12,11 @@ import {
   ReadModelMetadata,
   ReadModelRequestEnvelope,
   ReadOnlyNonEmptyArray,
+  SequenceKey,
   SortFor,
   SubscriptionEnvelope,
   TraceActionTypes,
+  UUID,
 } from '@boostercloud/framework-types'
 import {
   createInstance,
@@ -130,6 +132,18 @@ export class BoosterReadModelsReader {
     return this.migrateReadModels(readModels, readModelName)
   }
 
+  public async finderByIdFunction<TReadModel extends ReadModelInterface>(
+    readModelClass: AnyClass,
+    id: UUID,
+    sequenceKey?: SequenceKey
+  ): Promise<ReadOnlyNonEmptyArray<TReadModel> | TReadModel> {
+    const readModels = await this.config.provider.readModels.fetch(this.config, readModelClass.name, id, sequenceKey)
+    if (sequenceKey) {
+      return readModels as ReadOnlyNonEmptyArray<TReadModel>
+    }
+    return readModels[0] as TReadModel
+  }
+
   private async migrateReadModels<TReadModel extends ReadModelInterface>(
     readModels: Array<TReadModel> | ReadModelListResult<TReadModel>,
     readModelName: string

packages/framework-core/src/booster.ts

@@ -1,19 +1,14 @@
 import { createInstance } from '@boostercloud/framework-common-helpers'
 import {
-  AnyClass,
   BoosterConfig,
   BoosterConfigTag,
   Class,
   EntityInterface,
   EventSearchParameters,
   EventSearchResponse,
-  FinderByKeyFunction,
   PaginatedEntitiesIdsResult,
   ReadModelInterface,
-  ReadOnlyNonEmptyArray,
   Searcher,
-  SearcherFunction,
-  SequenceKey,
   UUID,
 } from '@boostercloud/framework-types'
 import { Importer } from './importer'
@@ -24,8 +19,8 @@ import { BoosterDataMigrationStarted } from './core-concepts/data-migration/even
 import { BoosterDataMigrationFinished } from './core-concepts/data-migration/events/booster-data-migration-finished'
 import { JwksUriTokenVerifier, JWT_ENV_VARS } from './services/token-verifiers'
 import { BoosterAuthorizer } from './booster-authorizer'
-import { BoosterReadModelsReader } from './booster-read-models-reader'
 import { BoosterEntityTouched } from './core-concepts/touch-entity/events/booster-entity-touched'
+import { readModelSearcher } from './services/read-model-searcher'
 import { eventSearch } from './booster-event-search'
 import { Effect, pipe } from 'effect'
 import { Command } from '@effect/cli'
@@ -107,22 +102,7 @@ export class Booster {
   public static readModel<TReadModel extends ReadModelInterface>(
     readModelClass: Class<TReadModel>
   ): Searcher<TReadModel> {
-    const finderByIdFunction: FinderByKeyFunction<TReadModel> = async (
-      readModelClass: AnyClass,
-      id: UUID,
-      sequenceKey?: SequenceKey
-    ) => {
-      const readModels = await this.config.provider.readModels.fetch(this.config, readModelClass.name, id, sequenceKey)
-      if (sequenceKey) {
-        return readModels as ReadOnlyNonEmptyArray<TReadModel>
-      }
-      return readModels[0] as TReadModel
-    }
-    const boosterReadModelsReader = new BoosterReadModelsReader(this.config)
-    // eslint-disable-next-line @typescript-eslint/no-explicit-any
-    const searcherFunction: SearcherFunction<TReadModel, any> =
-      boosterReadModelsReader.readModelSearch.bind(boosterReadModelsReader)
-    return new Searcher(readModelClass, searcherFunction, finderByIdFunction)
+    return readModelSearcher(this.config, readModelClass)
   }
 
   public static async events(request: EventSearchParameters): Promise<Array<EventSearchResponse>> {