# Cache Namespace Endpoint - Final Implementation

**Date**: 2024-12-27  
**Status**: ✅ Complete, Compiled, and Ready

## What Was Done

### 1. Added Cache API Tag
**File**: `obp-api/src/main/scala/code/api/util/ApiTag.scala`

Added new tag for cache-related endpoints:
```scala
val apiTagCache = ResourceDocTag("Cache")
```

### 2. Updated Endpoint Tags
**File**: `obp-api/src/main/scala/code/api/v6_0_0/APIMethods600.scala`

The cache namespaces endpoint now has proper tags:
```scala
List(apiTagCache, apiTagSystem, apiTagApi)
```

### 3. Endpoint Registration
The endpoint is automatically registered in **OBP v6.0.0** through:
- `OBPAPI6_0_0` object includes `APIMethods600` trait
- `endpointsOf6_0_0 = getEndpoints(Implementations6_0_0)`
- `getCacheNamespaces` is a lazy val in Implementations600
- Automatically discovered and registered

## Endpoint Details

**URL**: `GET /obp/v6.0.0/system/cache/namespaces`

**Tags**: Cache, System, API

**Authorization**: Requires `CanGetCacheNamespaces` role

**Response**: Returns all cache namespaces with live Redis data

## How to Find It

### In API Explorer
The endpoint will appear under:
- **Cache** tag (primary category)
- **System** tag (secondary category)  
- **API** tag (tertiary category)

### In Resource Docs
```bash
GET /obp/v6.0.0/resource-docs/v6.0.0/obp
```
Search for "cache/namespaces" or filter by "Cache" tag

## Complete File Changes

```
obp-api/src/main/scala/code/api/cache/Redis.scala             |  47 lines
obp-api/src/main/scala/code/api/constant/constant.scala       |  17 lines
obp-api/src/main/scala/code/api/util/ApiRole.scala            |   9 lines
obp-api/src/main/scala/code/api/util/ApiTag.scala             |   1 line
obp-api/src/main/scala/code/api/v6_0_0/APIMethods600.scala    | 106 lines
obp-api/src/main/scala/code/api/v6_0_0/JSONFactory6.0.0.scala |  35 lines
---
Total: 6 files changed, 215 insertions(+), 2 deletions(-)
```

## Verification Checklist

✅ Code compiles successfully  
✅ No formatting changes (clean diffs)  
✅ Cache tag added to ApiTag  
✅ Endpoint uses Cache tag  
✅ Endpoint registered in v6.0.0  
✅ Documentation complete  
✅ All roles defined  
✅ Redis integration works  

## Testing

### Step 1: Create User with Role
```sql
-- Or use API to grant entitlement
INSERT INTO entitlement (user_id, role_name) 
VALUES ('user-id-here', 'CanGetCacheNamespaces');
```

### Step 2: Call Endpoint
```bash
curl -X GET https://your-api/obp/v6.0.0/system/cache/namespaces \
  -H "Authorization: DirectLogin token=YOUR_TOKEN"
```

### Step 3: Expected Response
```json
{
  "namespaces": [
    {
      "prefix": "rl_counter_",
      "description": "Rate limiting counters per consumer and time period",
      "ttl_seconds": "varies",
      "category": "Rate Limiting",
      "key_count": 42,
      "example_key": "rl_counter_abc123_PER_MINUTE"
    },
    ...
  ]
}
```

## Documentation

- **Full Plan**: `ideas/CACHE_NAMESPACE_STANDARDIZATION.md`
- **Implementation Details**: `IMPLEMENTATION_SUMMARY.md`

## Summary

✅ **Cache tag added** - New "Cache" category in API Explorer  
✅ **Endpoint tagged properly** - Cache, System, API tags  
✅ **Registered in v6.0.0** - Available at `/obp/v6.0.0/system/cache/namespaces`  
✅ **Clean implementation** - No formatting noise  
✅ **Fully documented** - Complete specification  

Ready for testing and deployment! 🚀
