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refactor(handler): implement defensive token update strategy and extract cache creation token utility

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- Add extract_cache_creation_tokens utility to handle new/old cache creation token formats
- Implement defensive update strategy in StreamContext to prevent zero values overwriting valid data
- Simplify cache creation token parsing in Claude handler using new utility
- Add comprehensive test suite for cache creation token extraction
- Improve type hints in handler classes
This commit is contained in:
fawney19
2025-12-16 00:02:49 +08:00
parent adcdb73d29
commit f3a69a6160
8 changed files with 186 additions and 34 deletions
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6
src/api/handlers/claude/stream_parser.py
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@@ -9,6 +9,8 @@ from __future__ import annotations
import json
from typing import Any, Dict, List, Optional
from src.api.handlers.base.utils import extract_cache_creation_tokens
class ClaudeStreamParser:
"""
@@ -193,7 +195,7 @@ class ClaudeStreamParser:
return {
"input_tokens": usage.get("input_tokens", 0),
"output_tokens": usage.get("output_tokens", 0),
"cache_creation_tokens": usage.get("cache_creation_input_tokens", 0),
"cache_creation_tokens": extract_cache_creation_tokens(usage),
"cache_read_tokens": usage.get("cache_read_input_tokens", 0),
}
@@ -204,7 +206,7 @@ class ClaudeStreamParser:
return {
"input_tokens": usage.get("input_tokens", 0),
"output_tokens": usage.get("output_tokens", 0),
"cache_creation_tokens": usage.get("cache_creation_input_tokens", 0),
"cache_creation_tokens": extract_cache_creation_tokens(usage),
"cache_read_tokens": usage.get("cache_read_input_tokens", 0),
}