fixed batching to work better

apps/data-service/src/utils/batch-processor.ts

@@ -22,14 +22,16 @@ const logger = getLogger('batch-processor');
 export class BatchProcessor {
   private cacheProvider: CacheProvider;
   private isReady = false;
+  private keyPrefix: string = 'batch:'; // Default key prefix for batch payloads
 
   constructor(
     private queueManager: any,
     private cacheOptions?: { keyPrefix?: string; ttl?: number } // Optional cache configuration
   ) {
+    this.keyPrefix = cacheOptions?.keyPrefix || 'batch:';
     // Initialize cache provider with batch-specific settings
     this.cacheProvider = createCache('redis', {
-      keyPrefix: cacheOptions?.keyPrefix || 'batch:',
+      keyPrefix: this.keyPrefix,
       ttl: cacheOptions?.ttl || 86400 * 2, // 48 hours default
       enableMetrics: true
     });
@@ -51,7 +53,7 @@ export class BatchProcessor {
       this.isReady = true;
       logger.info('BatchProcessor initialized successfully', {
         cacheReady: this.cacheProvider.isReady(),
-        keyPrefix: this.cacheOptions?.keyPrefix || 'batch:',
+        keyPrefix: this.keyPrefix,
         ttlHours: ((this.cacheOptions?.ttl || 86400 * 2) / 3600).toFixed(1)
       });
     } catch (error) {
@@ -69,13 +71,13 @@ export class BatchProcessor {
   getReadyStatus(): boolean {
     return this.isReady && this.cacheProvider.isReady();
   }
-
   /**
    * Generate a unique key for storing batch payload in Redis
+   * Note: The cache provider will add its keyPrefix ('batch:') automatically
    */
   private generatePayloadKey(jobNamePrefix: string, batchIndex: number): string {
-    return `batch:payload:${jobNamePrefix}:${batchIndex}:${Date.now()}`;
-  }  /**
+    return `payload:${jobNamePrefix}:${batchIndex}:${Date.now()}`;
+  }/**
    * Store batch payload in Redis and return the key
    */
   private async storeBatchPayload<T>(
@@ -123,21 +125,36 @@ export class BatchProcessor {
     batchIndex: number;
     config: BatchConfig<T>;
   } | null> {
-    // Ensure cache is ready before loading
-    if (!this.cacheProvider.isReady()) {
-      logger.error('Cache provider not ready - cannot load batch payload', { payloadKey });
-      return null;
+    // Auto-initialize if not ready
+    if (!this.cacheProvider.isReady() || !this.isReady) {
+      logger.info('Cache provider not ready, initializing...', { payloadKey });
+      try {
+        await this.initialize();
+      } catch (error) {
+        logger.error('Failed to initialize cache provider for loading', {
+          payloadKey,
+          error: error instanceof Error ? error.message : String(error)
+        });
+        throw new Error('Cache provider initialization failed - cannot load batch payload');
+      }
     }
 
     try {
-      const payloadJson = await this.cacheProvider.get<string>(payloadKey);
+      const payloadData = await this.cacheProvider.get<any>(payloadKey);
       
-      if (!payloadJson) {
+      if (!payloadData) {
         logger.error('Batch payload not found in Redis', { payloadKey });
-        return null;
+        throw new Error('Batch payload not found in Redis');
       }
 
-      const payload = JSON.parse(payloadJson);
+      // Handle both string and already-parsed object
+      let payload;
+      if (typeof payloadData === 'string') {
+        payload = JSON.parse(payloadData);
+      } else {
+        // Already parsed by cache provider
+        payload = payloadData;
+      }
       
       logger.info('Loaded batch payload from Redis', {
         payloadKey,
@@ -151,7 +168,7 @@ export class BatchProcessor {
         payloadKey,
         error: error instanceof Error ? error.message : String(error)
       });
-      return null;
+      throw new Error('Failed to load batch payload from Redis');
     }
   }
   /**
@@ -230,7 +247,7 @@ export class BatchProcessor {
           },
           opts: {
             delay: globalIndex * delayPerItem,
-            jobId: `${jobNamePrefix}-${globalIndex}-${Date.now()}`,
+            jobId: `${jobNamePrefix}:${globalIndex}:${Date.now()}`,
             removeOnComplete,
             removeOnFail
           }
@@ -300,7 +317,6 @@ export class BatchProcessor {
         const batchItems = items.slice(startIndex, endIndex);
           // Store batch payload in Redis and get reference key
         const payloadKey = await this.storeBatchPayload(batchItems, config, batchIndex);
-        
         batchJobs.push({
           name: `${jobNamePrefix}-batch-processing`,
           data: {
@@ -310,7 +326,7 @@ export class BatchProcessor {
             operation: `process-${jobNamePrefix}-batch`,
             payload: {
               // Optimized: only store reference and metadata
-              payloadKey,
+              payloadKey: payloadKey,
               batchIndex,
               total: totalBatches,
               itemCount: batchItems.length,
@@ -329,7 +345,7 @@ export class BatchProcessor {
           },
           opts: {
             delay: batchIndex * delayPerBatch,
-            jobId: `${jobNamePrefix}-batch-${batchIndex}-${Date.now()}`
+            jobId: `${jobNamePrefix}-batch:${batchIndex}:${Date.now()}`
           }
         });
       }
@@ -459,7 +475,7 @@ export class BatchProcessor {
         },
         opts: {
           delay: itemIndex * delayPerItem,
-          jobId: `${config.jobNamePrefix}-${batchIndex}-${itemIndex}-${Date.now()}`,
+          jobId: `${config.jobNamePrefix}:${batchIndex}:${itemIndex}:${Date.now()}`,
           removeOnComplete: config.removeOnComplete || 5,
           removeOnFail: config.removeOnFail || 3
         }