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* fix(bedrock): respect s3_region_name for batch file uploads (#23569) * fix(bedrock): respect s3_region_name for batch file uploads (GovCloud fix) * fix: s3_region_name always wins over aws_region_name for S3 signing (Greptile feedback) * fix: _filter_headers_for_aws_signature - Bedrock KB (#23571) * fix: _filter_headers_for_aws_signature * fix: filter None header values in all post-signing re-merge paths Addresses Greptile feedback: None-valued headers were being filtered during SigV4 signing but re-merged back into the final headers dict afterward, which would cause downstream HTTP client failures. Made-with: Cursor * feat(router): tag_regex routing — route by User-Agent regex without per-developer tag config (#23594) * feat(router): add tag_regex support for header-based routing Adds a new `tag_regex` field to litellm_params that lets operators route requests based on regex patterns matched against request headers — primarily User-Agent — without requiring per-developer tag configuration. Use case: route all Claude Code traffic (User-Agent: claude-code/x.y.z) to a dedicated deployment by setting: tag_regex: - "^User-Agent: claude-code\\/" in the deployment's litellm_params. Works alongside existing `tags` routing; exact tag match takes precedence over regex match. Unmatched requests fall through to deployments tagged `default`. The matched deployment, pattern, and user_agent are recorded in `metadata["tag_routing"]` so they flow through to SpendLogs automatically. * fix(tag_regex): address backwards-compat, metadata overwrite, and warning noise Three issues from code review: 1. Backwards-compat: `has_tag_filter` was widened to activate on any non-empty User-Agent, which would raise ValueError for existing deployments using plain tags without a `default` fallback. Fix: only activate header-based regex filtering when at least one candidate deployment has `tag_regex` configured. 2. Metadata overwrite: `metadata["tag_routing"]` was overwritten for every matching deployment in the loop, leaving inaccurate provenance when multiple deployments match. Fix: write only for the first match. 3. Warning noise: an invalid regex pattern logged one warning per header string rather than once per pattern. Fix: compile first (catching re.error once), then iterate over header strings. Also adds two new tests covering these cases, and adds docs page for tag_regex routing with a Claude Code walk-through. * refactor(tag_regex): remove unnecessary _healthy_list copy * docs: merge tag_regex section into tag_routing.md, remove standalone page - Add ## Regex-based tag routing (tag_regex) section to existing tag_routing.md instead of a separate page - Remove tag_regex_routing.md standalone doc (odd UX to have a separate page for a sub-feature) - Remove proxy/tag_regex_routing from sidebars.js - Add match_any=False debug warning in tag_based_routing.py when regex routing fires under strict mode (regex always uses OR semantics) * fix(tag_regex): address greptile review - security docs, strict-mode enforcement, validation order - Strengthen security note in tag_routing.md: explicitly state User-Agent is client-supplied and can be set to any value; frame tag_regex as a traffic classification hint, not an access-control mechanism - Move tag_regex startup validation before _add_deployment() so an invalid pattern never leaves partial router state - Enforce match_any=False strict-tag policy: when a deployment has both tags and tag_regex and the strict tag check fails, skip the regex fallback rather than silently bypassing the operator's intent - Extract per-deployment match logic into _match_deployment() helper to keep get_deployments_for_tag() readable - Add two new tests: strict-mode blocks regex fallback, regex-only deployment still matches under match_any=False * fix(ci): apply Black formatting to 14 files and stabilize flaky caplog tests - Run Black formatter on 14 files that were failing the lint check - Replace caplog-based assertions in TestAliasConflicts with unittest.mock.patch on verbose_logger.warning for xdist compatibility - The caplog fixture can produce empty text in pytest-xdist workers in certain CI environments, causing flaky test failures Co-authored-by: Ishaan Jaff <ishaan-jaff@users.noreply.github.com> --------- Co-authored-by: Cursor Agent <cursoragent@cursor.com> Co-authored-by: Ishaan Jaff <ishaan-jaff@users.noreply.github.com> |
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| .. | ||
| a2a_protocol | ||
| anthropic_interface/exceptions | ||
| caching | ||
| completion_extras | ||
| containers | ||
| enterprise | ||
| expected_responses_api_request | ||
| experimental_mcp_client | ||
| google_genai | ||
| images | ||
| integrations | ||
| interactions | ||
| litellm_core_utils | ||
| llms | ||
| ocr | ||
| passthrough | ||
| proxy | ||
| responses | ||
| router_strategy | ||
| router_utils | ||
| secret_managers | ||
| test_router | ||
| types | ||
| vector_stores | ||
| __init__.py | ||
| conftest.py | ||
| log.txt | ||
| readme.md | ||
| test_a2a_registry_lookup.py | ||
| test_acompletion_session_reuse_e2e.py | ||
| test_add_deployment_no_master_key.py | ||
| test_aembedding_session_reuse_e2e.py | ||
| test_anthropic_beta_headers_filtering.py | ||
| test_anthropic_skills_transformation.py | ||
| test_azure_video_router.py | ||
| test_chat_ui_responses_session.py | ||
| test_claude_haiku_4_5_config.py | ||
| test_claude_opus_4_6_config.py | ||
| test_constants.py | ||
| test_container_router.py | ||
| test_cost_calculation_log_level.py | ||
| test_cost_calculator.py | ||
| test_count_tokens_public_api.py | ||
| test_deepseek_model_metadata.py | ||
| test_eager_tiktoken_load.py | ||
| test_exception_exports.py | ||
| test_exception_header_preservation.py | ||
| test_exception_mapping_request_attribute.py | ||
| test_filter_out_litellm_params.py | ||
| test_get_blog_posts.py | ||
| test_gpt_image_cost_calculator.py | ||
| test_groq_streaming_encoding.py | ||
| test_lazy_imports.py | ||
| test_litellm_params_reserved_keys.py | ||
| test_logging.py | ||
| test_lowest_latency_zero_tokens.py | ||
| test_main.py | ||
| test_model_cost_aliases.py | ||
| test_model_param_helper.py | ||
| test_model_response_normalization.py | ||
| test_nested_drop_params.py | ||
| test_project_tags_pydantic.py | ||
| test_redis.py | ||
| test_register_model_custom_pricing.py | ||
| test_responses_api_bridge_non_stream.py | ||
| test_responses_id_security.py | ||
| test_router.py | ||
| test_router_google_genai.py | ||
| test_router_model_cost_isolation.py | ||
| test_router_per_deployment_num_retries.py | ||
| test_router_redis_init.py | ||
| test_router_retry_non_retryable_errors.py | ||
| test_router_silent_experiment.py | ||
| test_service_logger.py | ||
| test_shared_session_integration.py | ||
| test_ssl_verify_unit.py | ||
| test_streaming_connection_cleanup.py | ||
| test_system_message_format_bug.py | ||
| test_utils.py | ||
| test_uuid_helper.py | ||
| test_video_generation.py | ||
| test_xai_responses_auto_routing.py | ||
Testing for litellm/
This directory 1:1 maps the the litellm/ directory, and can only contain mocked tests.
The point of this is to:
- Increase test coverage of
litellm/ - Make it easy for contributors to add tests for the
litellm/package and easily run tests without needing LLM API keys.
File name conventions
litellm/proxy/test_caching_routes.pymaps tolitellm/proxy/caching_routes.pytest_<filename>.pymaps tolitellm/<filename>.py