Merge pull request #32 from fosteramanda/main

Adding LangChain Quickstart

Author: Derek Legenzoff

Basic_Samples/LangChain/README.md

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+# Introduction
+This repository shows how to setup and use Azure OpenAI models' API with LangChain.
+
+## Installation
+Install all Python modules and packages listed in the requirements.txt file using the below command.
+
+```python
+pip install -r requirements.txt
+```
+
+### Microsoft Azure Endpoints
+In order to use the Open AI library or REST API with Microsoft Azure endpoints, you need to set DEPLOYMENT_NAME, OPENAI_API_BASE & OPENAI_API_VERSION in _config.json_ file. 
+
+```js
+{
+    "DEPLOYMENT_NAME":"<Model Deployment Name>",
+    "OPENAI_API_BASE":"https://<Your Azure Resource Name>.openai.azure.com",
+    "OPENAI_API_VERSION":"<OpenAI API Version>"
+}
+``` 
+
+### For getting started:
+- Add "OPENAI_API_KEY" as variable name and \<Your API Key Value\> as variable value in the environment variables.
+<br>
+One can get the OPENAI_API_KEY value from the Azure Portal. Go to https://portal.azure.com, find your resource and then under "Resource Management" -> "Keys and Endpoints" look for one of the "Keys" values.
+ <br>
+      
+      WINDOWS Users: 
+         setx OPENAI_API_KEY "REPLACE_WITH_YOUR_KEY_VALUE_HERE"
+
+      MACOS/LINUX Users: 
+         export OPENAI_API_KEY="REPLACE_WITH_YOUR_KEY_VALUE_HERE"
+
+- To find your "DEPLOYMENT_NAME" go to the deployments page of the Azure AI Studio. Create a deployment if one does not already exist.
+One can start with using your model name as "gpt-35-turbo-0613" or "gpt-4."
+
+- To find your "OPENAI_API_BASE" go to https://portal.azure.com, find your resource and then under "Resource Management" -> "Keys and Endpoints" look for the "Endpoint" value.
+
+- Check out versions [here](https://learn.microsoft.com/en-us/azure/cognitive-services/openai/reference).
+
+
+## Requirements
+Python 3.8+ <br>
+Jupyter Notebook 6.5.2
+
+<br>
+
+## Trademarks
+
+This project may contain trademarks or logos for projects, products, or services. Authorized use of Microsoft 
+trademarks or logos is subject to and must follow 
+[Microsoft's Trademark & Brand Guidelines](https://www.microsoft.com/en-us/legal/intellectualproperty/trademarks/usage/general).
+Use of Microsoft trademarks or logos in modified versions of this project must not cause confusion or imply Microsoft sponsorship.
+Any use of third-party trademarks or logos are subject to those third-party's policies.

Basic_Samples/LangChain/config.json

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+{
+    "DEPLOYMENT_NAME":"<Model Deployment Name>",
+    "OPENAI_API_BASE":"https://<Your Azure Resource Name>.openai.azure.com",
+    "OPENAI_API_VERSION":"<OpenAI API Version>"
+}

Basic_Samples/LangChain/requirements.txt

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+# Packages needed to call AOAI API with the OpenAI Python API
+openai
+
+# Packages needed to run the notebook samples
+jupyter
+
+# Other packages needed to run the notebook samples
+langchain
+json