bedrock langchain (#199)

aws/bedrock1.py

@@ -1,5 +1,3 @@
-
-
 from dotenv import load_dotenv
 load_dotenv()
 

aws/langchain-bedrock.py

@@ -0,0 +1,27 @@
+'''
+(titan) gyliu@Guangyas-MacBook-Air .aws % cat credentials
+[bedrock-admin]
+AWS_ACCESS_KEY_ID=
+AWS_SECRET_ACCESS_KEY=
+
+(titan) gyliu@Guangyas-MacBook-Air .aws % pwd
+/Users/gyliu/.aws
+'''
+
+from dotenv import load_dotenv
+load_dotenv()
+
+from traceloop.sdk import Traceloop
+from traceloop.sdk.decorators import task, workflow
+
+Traceloop.init(app_name="joke_generation_service")
+
+from langchain_aws import BedrockLLM
+
+llm = BedrockLLM(
+    credentials_profile_name="bedrock-admin",
+    model_id="amazon.titan-text-express-v1",
+    region_name="us-west-2",
+)
+
+print(llm.invoke(input="What is the recipe of mayonnaise?"))

haystack/hay-chat-bot.py

@@ -0,0 +1,32 @@
+from dotenv import load_dotenv
+load_dotenv()
+
+from haystack.telemetry import tutorial_running
+
+tutorial_running(40)
+'''
+from haystack.dataclasses import ChatMessage
+from haystack.components.generators.chat import OpenAIChatGenerator
+
+messages = [
+    ChatMessage.from_system("Always respond in German even if some input data is in other languages."),
+    ChatMessage.from_user("What's Natural Language Processing? Be brief."),
+]
+
+chat_generator = OpenAIChatGenerator(model="gpt-3.5-turbo")
+chat_generator.run(messages=messages)
+'''
+'''
+from haystack.dataclasses import ChatMessage
+from haystack.components.generators.chat import OpenAIChatGenerator
+from haystack.components.generators.utils import print_streaming_chunk
+
+messages = [
+    ChatMessage.from_system("Always respond in German even if some input data is in other languages."),
+    ChatMessage.from_user("What's Natural Language Processing? Be brief."),
+]
+
+chat_generator = OpenAIChatGenerator(model="gpt-3.5-turbo", streaming_callback=print_streaming_chunk)
+response = chat_generator.run(messages=messages)
+print(response)
+'''