Add temperature support to conversational api (#3566)

Signed-off-by: yaron2 <[email protected]>

Author: yaron2

conversation/anthropic/anthropic.go

@@ -92,7 +92,13 @@ func (a *Anthropic) Converse(ctx context.Context, r *conversation.ConversationRe
 		})
 	}
 
-	resp, err := a.llm.GenerateContent(ctx, messages)
+	opts := []llms.CallOption{}
+
+	if r.Temperature > 0 {
+		opts = append(opts, conversation.LangchainTemperature(r.Temperature))
+	}
+
+	resp, err := a.llm.GenerateContent(ctx, messages, opts...)
 	if err != nil {
 		return nil, err
 	}

conversation/aws/bedrock/bedrock.go

@@ -104,7 +104,13 @@ func (b *AWSBedrock) Converse(ctx context.Context, r *conversation.ConversationR
 		})
 	}
 
-	resp, err := b.llm.GenerateContent(ctx, messages)
+	opts := []llms.CallOption{}
+
+	if r.Temperature > 0 {
+		opts = append(opts, conversation.LangchainTemperature(r.Temperature))
+	}
+
+	resp, err := b.llm.GenerateContent(ctx, messages, opts...)
 	if err != nil {
 		return nil, err
 	}

conversation/converse.go

@@ -42,6 +42,7 @@ type ConversationRequest struct {
 	Inputs              []ConversationInput   `json:"inputs"`
 	Parameters          map[string]*anypb.Any `json:"parameters"`
 	ConversationContext string                `json:"conversationContext"`
+	Temperature         float64               `json:"temperature"`
 
 	// from metadata
 	Key       string   `json:"key"`

conversation/openai/openai.go

@@ -111,8 +111,9 @@ func (o *OpenAI) Converse(ctx context.Context, r *conversation.ConversationReque
 	}
 
 	req := openai.ChatCompletionRequest{
-		Model:    o.model,
-		Messages: messages,
+		Model:       o.model,
+		Messages:    messages,
+		Temperature: float32(r.Temperature),
 	}
 
 	// TODO: support ConversationContext

conversation/temperature.go

@@ -0,0 +1,22 @@
+/*
+Copyright 2024 The Dapr Authors
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+	http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+package conversation
+
+import "github.com/tmc/langchaingo/llms"
+
+// LangchainTemperature returns a langchain compliant LLM temperature
+func LangchainTemperature(temperature float64) llms.CallOption {
+	return llms.WithTemperature(temperature)
+}