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fix(aws): inference config and system message | ChatBedrockConverse #9324

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fix(aws): inference config and system message | ChatBedrockConverse #9324

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33 changes: 25 additions & 8 deletions libs/providers/langchain-aws/src/chat_models.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -812,13 +812,26 @@ export class ChatBedrockConverse
: undefined,
};
}
const candidateInferenceConfig: NonNullable<
ConverseCommandParams["inferenceConfig"]
> = {
maxTokens: this.maxTokens,
temperature: this.temperature,
topP: this.topP,
stopSequences: options?.stop,
};

const hasInferenceValues =
candidateInferenceConfig.maxTokens !== undefined ||
candidateInferenceConfig.temperature !== undefined ||
candidateInferenceConfig.topP !== undefined ||
(Array.isArray(candidateInferenceConfig.stopSequences) &&
candidateInferenceConfig.stopSequences.length > 0);

return {
inferenceConfig: {
maxTokens: this.maxTokens,
temperature: this.temperature,
topP: this.topP,
stopSequences: options?.stop,
},
inferenceConfig: hasInferenceValues
? candidateInferenceConfig
: undefined,
toolConfig,
additionalModelRequestFields:
this.additionalModelRequestFields ??
Expand Down Expand Up @@ -868,7 +881,9 @@ export class ChatBedrockConverse
const command = new ConverseCommand({
modelId: this.model,
messages: converseMessages,
system: converseSystem,
...(Array.isArray(converseSystem) && converseSystem.length > 0
? { system: converseSystem }
: {}),
requestMetadata: options.requestMetadata,
...params,
});
Expand Down Expand Up @@ -909,7 +924,9 @@ export class ChatBedrockConverse
const command = new ConverseStreamCommand({
modelId: this.model,
messages: converseMessages,
system: converseSystem,
...(Array.isArray(converseSystem) && converseSystem.length > 0
? { system: converseSystem }
: {}),
requestMetadata: options.requestMetadata,
...params,
});
Expand Down