feat: Support LangChain orchestration client streaming #711
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| @@ -0,0 +1,6 @@ | ||
| --- | ||
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Check warning on line 1 in .changeset/chilly-steaks-divide.md
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| '@sap-ai-sdk/orchestration': minor | ||
| '@sap-ai-sdk/langchain': minor | ||
| --- | ||
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| [New Functionality] Support streaming in LangChain orchestration client. | ||
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| // Jest Snapshot v1, https://goo.gl/fbAQLP | ||
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| exports[`mapOrchestrationChunkToLangChainMessageChunk should map a chunk with content to AIMessageChunk: AIMessageChunk with content 1`] = ` | ||
| { | ||
| "id": [ | ||
| "langchain_core", | ||
| "messages", | ||
| "AIMessageChunk", | ||
| ], | ||
| "kwargs": { | ||
| "additional_kwargs": { | ||
| "module_results": { | ||
| "llm": { | ||
| "choices": [ | ||
| { | ||
| "delta": { | ||
| "content": "Test content", | ||
| "role": "assistant", | ||
| "tool_calls": undefined, | ||
| }, | ||
| "finish_reason": "", | ||
| "index": 0, | ||
| }, | ||
| ], | ||
| "created": 1634840000, | ||
| "id": "test-id", | ||
| "model": "test-model", | ||
| "object": "chat.completion.chunk", | ||
| "system_fingerprint": "fp_123", | ||
| "usage": undefined, | ||
| }, | ||
| }, | ||
| "request_id": "req-123", | ||
| }, | ||
| "content": "Test content", | ||
| "invalid_tool_calls": [], | ||
| "response_metadata": {}, | ||
| "tool_call_chunks": [], | ||
| "tool_calls": [], | ||
| "usage_metadata": undefined, | ||
| }, | ||
| "lc": 1, | ||
| "type": "constructor", | ||
| } | ||
| `; | ||
|
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| exports[`mapOrchestrationChunkToLangChainMessageChunk should map a chunk with tool call chunks to AIMessageChunk: AIMessageChunk with tool call chunks 1`] = ` | ||
| { | ||
| "id": [ | ||
| "langchain_core", | ||
| "messages", | ||
| "AIMessageChunk", | ||
| ], | ||
| "kwargs": { | ||
| "additional_kwargs": { | ||
| "module_results": { | ||
| "llm": { | ||
| "choices": [ | ||
| { | ||
| "delta": { | ||
| "content": "", | ||
| "role": "assistant", | ||
| "tool_calls": [ | ||
| { | ||
| "function": { | ||
| "arguments": "", | ||
| "name": "test_function", | ||
| }, | ||
| "id": "call-123", | ||
| "index": 0, | ||
| "type": "function", | ||
| }, | ||
| ], | ||
| }, | ||
| "finish_reason": "", | ||
| "index": 0, | ||
| }, | ||
| ], | ||
| "created": 1634840000, | ||
| "id": "test-id", | ||
| "model": "test-model", | ||
| "object": "chat.completion.chunk", | ||
| "system_fingerprint": "fp_123", | ||
| "usage": undefined, | ||
| }, | ||
| }, | ||
| "request_id": "req-123", | ||
| }, | ||
| "content": "", | ||
| "invalid_tool_calls": [], | ||
| "response_metadata": {}, | ||
| "tool_call_chunks": [ | ||
| { | ||
| "args": "", | ||
| "id": "call-123", | ||
| "index": 0, | ||
| "name": "test_function", | ||
| "type": "tool_call_chunk", | ||
| }, | ||
| ], | ||
| "tool_calls": [ | ||
| { | ||
| "args": {}, | ||
| "id": "call-123", | ||
| "name": "test_function", | ||
| "type": "tool_call", | ||
| }, | ||
| ], | ||
| "usage_metadata": undefined, | ||
| }, | ||
| "lc": 1, | ||
| "type": "constructor", | ||
| } | ||
| `; |
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Some properties are concatenated multiple times, as
concat()inAIMessageChunkdoes not have these properties. We need to custom handle these properties during concatenation. Will handle this in a follow-up BLI: https://github.com/SAP/ai-sdk-js-backlog/issues/322.I don't think this is a blocker for the streaming feature. What do the others think?