[Solved] Identify the error in this Kafka Streams interactive query code snippet:var store = streams.store("ordersStore", ReadOnlyKeyValueStore.class); var order = store.get(12345); System.out.println(order); | Kafka

Kafka - Advanced Stream Processing

Identify the error in this Kafka Streams interactive query code snippet:

var store = streams.store("ordersStore", ReadOnlyKeyValueStore.class);
var order = store.get(12345);
System.out.println(order);

APassing integer key instead of string key

BMissing try-catch block for exceptions

CUsing streams.store instead of streams.getStore

DIncorrect store type ReadOnlyKeyValueStore

Step-by-Step Solution

Solution:

Step 1: Check method to get state store
The method streams.store is correct.
Step 2: Validate key type and store type
Key type mismatch: passing integer 12345 instead of string key (common for ordersStore).
Final Answer:
Passing integer key instead of string key -> Option A
Quick Check:
Key type must match store definition [OK]

Quick Trick: Use correct key type in store.get(key) [OK]

Common Mistakes:

MISTAKES

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