---
title: Feedback Mechanism
description: "Provide positive or negative feedback on generated memories to continuously improve accuracy and search results."
---

Deja Vu's Feedback Mechanism allows you to provide feedback on the memories generated by your application. This feedback is used to improve the accuracy of the memories and search results.

## How it works

The feedback mechanism is a simple API that allows you to provide feedback on the memories generated by your application. The feedback is stored in the database and used to improve the accuracy of the memories and search results. Over time, Deja Vu continuously learns from this feedback, refining its memory generation and search capabilities for better performance.

## Give Feedback

You can give feedback on a memory by calling the `feedback` method on the Deja Vu client.

<CodeGroup>

```python Python
from dejavu import MemoryClient

client = MemoryClient(api_key="your_api_key")

client.feedback(memory_id="your-memory-id", feedback="NEGATIVE", feedback_reason="I don't like this memory because it is not relevant.")
```

```javascript JavaScript
import MemoryClient from 'dejavu-memory';

const client = new MemoryClient({ apiKey: 'your-api-key'});

client.feedback({
    memory_id: "your-memory-id", 
    feedback: "NEGATIVE", 
    feedback_reason: "I don't like this memory because it is not relevant."
})
```

</CodeGroup>

## Feedback Types

The `feedback` parameter can be one of the following values:

- `POSITIVE`: The memory is useful.
- `NEGATIVE`: The memory is not useful.
- `VERY_NEGATIVE`: The memory is not useful at all.

## Parameters

The `feedback` method accepts these parameters:

| Parameter | Type | Required | Description |
|-----------|------|----------|-------------|
| `memory_id` | string | Yes | The ID of the memory to give feedback on |
| `feedback` | string | No | Type of feedback: `POSITIVE`, `NEGATIVE`, or `VERY_NEGATIVE` |
| `feedback_reason` | string | No | Optional explanation for the feedback |

<Note>
Pass `None` or `null` to the `feedback` and `feedback_reason` parameters to remove existing feedback for a memory.
</Note>

## Bulk Feedback Operations

For applications with high volumes of feedback, you can provide feedback on multiple memories at once:

<CodeGroup>

```python Python
from dejavu import MemoryClient

client = MemoryClient(api_key="your_api_key")

# Bulk feedback example
feedback_data = [
    {
        "memory_id": "memory-1", 
        "feedback": "POSITIVE", 
        "feedback_reason": "Accurately captured the user's preference"
    },
    {
        "memory_id": "memory-2", 
        "feedback": "NEGATIVE", 
        "feedback_reason": "Contains outdated information"
    }
]

for item in feedback_data:
    client.feedback(**item)
```

```javascript JavaScript
import MemoryClient from 'dejavu-memory';

const client = new MemoryClient({ apiKey: 'your-api-key'});

// Bulk feedback example
const feedbackData = [
    {
        memory_id: "memory-1", 
        feedback: "POSITIVE", 
        feedback_reason: "Accurately captured the user's preference"
    },
    {
        memory_id: "memory-2", 
        feedback: "NEGATIVE", 
        feedback_reason: "Contains outdated information"
    }
];

for (const item of feedbackData) {
    await client.feedback(item);
}
```

</CodeGroup>

## Best Practices

### When to Provide Feedback

- Immediately after memory retrieval when you can assess relevance
- During user interactions when users explicitly indicate satisfaction or dissatisfaction
- Through automated evaluation using your application's success metrics

### Effective Feedback Reasons

Provide specific, actionable feedback reasons:

**Good examples:**
- "Contains outdated contact information"
- "Accurately captured the user's dietary restrictions"
- "Irrelevant to the current conversation context"

**Avoid vague reasons:**
- "Bad memory"
- "Wrong"
- "Not good"

### Feedback Strategy

1. Be consistent: Apply the same criteria across similar memories
2. Be specific: Detailed reasons help improve the system faster
3. Monitor patterns: Regular feedback analysis helps identify improvement areas

## Error Handling

Handle potential errors when submitting feedback:

<CodeGroup>

```python Python
from dejavu import MemoryClient
from dejavu.exceptions import MemoryNotFoundError, APIError

client = MemoryClient(api_key="your_api_key")

try:
    client.feedback(
        memory_id="memory-123", 
        feedback="POSITIVE", 
        feedback_reason="Helpful context for user query"
    )
    print("Feedback submitted successfully")
except MemoryNotFoundError:
    print("Memory not found")
except APIError as e:
    print(f"API error: {e}")
except Exception as e:
    print(f"Unexpected error: {e}")
```

```javascript JavaScript
import MemoryClient from 'dejavu-memory';

const client = new MemoryClient({ apiKey: 'your-api-key'});

try {
    await client.feedback({
        memory_id: "memory-123", 
        feedback: "POSITIVE", 
        feedback_reason: "Helpful context for user query"
    });
    console.log("Feedback submitted successfully");
} catch (error) {
    if (error.status === 404) {
        console.log("Memory not found");
    } else {
        console.log(`Error: ${error.message}`);
    }
}
```

</CodeGroup>

## Feedback Analytics

Track the impact of your feedback by monitoring memory performance over time. Consider implementing:

- Feedback completion rates: What percentage of memories receive feedback
- Feedback distribution: Balance of positive vs. negative feedback
- Memory quality trends: How accuracy improves with feedback volume
- User satisfaction metrics: Correlation between feedback and user experience

