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feat: combine successive user messages in bedrock #749

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feat: combine successive user messages in bedrock #749

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19 changes: 18 additions & 1 deletion src/providers/bedrock/chatComplete.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -149,14 +149,31 @@ export const BedrockConverseChatCompleteConfig: ProviderConfig = {
required: true,
transform: (params: BedrockChatCompletionsParams) => {
if (!params.messages) return [];
return params.messages
const transformedMessages = params.messages
.filter((msg) => msg.role !== 'system')
.map((msg) => {
return {
role: msg.role === 'assistant' ? 'assistant' : 'user',
content: getMessageContent(msg),
};
});
let prevRole = '';
// combine user messages in succession
const combinedMessages = transformedMessages.reduce(
(acc: typeof transformedMessages, msg) => {
if (msg.role === 'user' && prevRole === 'user') {
const lastMessage = acc[acc.length - 1];
const newContent = [...lastMessage.content, ...msg.content];
lastMessage.content = newContent as typeof lastMessage.content;
} else {
acc.push(msg);
}
prevRole = msg.role;
return acc;
},
[]
);
return combinedMessages;
},
},
{
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