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NOTE: This is a sample application to help you understand how Semantic Kernel and AI can work in Web Applications. This sample is NOT FOR PRODUCTION deployments.

Chat Copilot Sample Application

This sample allows you to build your own integrated large language model (LLM) chat copilot. The sample is built on Microsoft Semantic Kernel and has three components:

  1. A frontend application React web app
  2. A backend REST API .NET web API service
  3. A .NET worker service for processing semantic memory.

These quick-start instructions run the sample locally. They can also be found on the official Chat Copilot Microsoft Learn documentation page for getting started.

To deploy the sample to Azure, please view Deploying Chat Copilot after meeting the requirements described below.

IMPORTANT: This sample is for educational purposes only and is not recommended for production deployments.

IMPORTANT: Each chat interaction will call Azure OpenAI/OpenAI which will use tokens that you may be billed for.

Chat Copilot answering a question

Requirements

You will need the following items to run the sample:

  • .NET 7.0 SDK (via Setup install.* script)
  • Node.js (via Setup install.* script)
  • Yarn (via Setup install.* script)
  • JQ (Install manually, only required in linux/macos env)
  • Git
  • AI Service (one of the following is required)
AI Service Requirement
Azure OpenAI - Access
- Resource
- Deployed models (gpt-35-turbo and text-embedding-ada-002)
- Endpoint
- API key
OpenAI - Account
- API key

Running the sample using the Azure Developer CLI (azd)

The Azure Developer CLI (azd) is a developer-centric command-line interface (CLI) tool for creating Azure applications.

You need to install it before running and deploying with the Azure Developer CLI.

Windows

powershell -ex AllSigned -c "Invoke-RestMethod 'https://aka.ms/install-azd.ps1' | Invoke-Expression"

Linux/MacOS

curl -fsSL https://aka.ms/install-azd.sh | bash

After logging in with the following command, you will be able to use the azd cli to quickly provision and deploy the application.

azd auth login

Then, execute the azd init command to initialize the environment (You do not need to run this command if you already have the code or have opened this in a Codespace or DevContainer).

azd init -t microsoft/chat-copilot

Enter an environment name.

Next, run azd up to provision all the resources to Azure and deploy the code to those resources.

azd up 

Select your desired subscription and location. Then choose a resource group or create a new resource group. Wait a moment for the resource deployment to complete, click the Website endpoint and you will see the web app page.

You can also run the sample directly locally (See below).

Running the sample locally

Windows

  1. Open PowerShell as an administrator.

    NOTE: Ensure that you have PowerShell Core 6+ installed. This is different from the default PowerShell installed on Windows.

  2. Clone this repository

    git clone https://github.com/microsoft/chat-copilot
  3. Setup your environment.

    The following is a script to help you install the dependencies required. Feel free to install dotnet, nodejs, and yarn with your method of choice or use this script.

    cd <path to chat-copilot>\scripts\
    .\Install.ps1

    NOTE: This script will install Chocolatey, dotnet-7.0-sdk, nodejs, and yarn.

    NOTE: If you receive an error that the script is not digitally signed or cannot execute on the system, you may need to change the execution policy (see list of policies and scopes) or unblock the script.

  4. Configure Chat Copilot.

    .\Configure.ps1 -AIService {AI_SERVICE} -APIKey {API_KEY} -Endpoint {AZURE_OPENAI_ENDPOINT}
    • AI_SERVICE: AzureOpenAI or OpenAI.

    • API_KEY: The API key for Azure OpenAI or for OpenAI.

    • AZURE_OPENAI_ENDPOINT: The Azure OpenAI resource Endpoint address. This is only required when using Azure OpenAI, omit -Endpoint if using OpenAI.

    • IMPORTANT: For AzureOpenAI, if you deployed models gpt-35-turbo and text-embedding-ada-002 with custom names (instead of the default names), also use the parameters:

      -CompletionModel {DEPLOYMENT_NAME} -EmbeddingModel {DEPLOYMENT_NAME} -PlannerModel {DEPLOYMENT_NAME}

      -PlannerModel name will be the same as -CompletionModel

      Open the .\Configure.ps1 script to see all of the available parameters.

  5. Run Chat Copilot locally. This step starts both the backend API and frontend application.

    .\Start.ps1

    It may take a few minutes for Yarn packages to install on the first run.

    NOTE: Confirm pop-ups are not blocked and you are logged in with the same account used to register the application.

    • (Optional) To start ONLY the backend:

      .\Start-Backend.ps1

Linux/macOS

  1. Open Bash as an Administrator.

  2. Clone this repository

    git clone https://github.com/microsoft/chat-copilot
  3. Configure environment.

    The following is a script to help you install the dependencies required. Feel free to install dotnet, nodejs, and yarn with your method of choice or use this script.

    cd <path to chat-copilot>/scripts/

    Ubuntu/Debian Linux

    ./install-apt.sh

    NOTE: This script uses apt to install dotnet-sdk-7.0, nodejs, and yarn.

    macOS

    ./install-brew.sh

    NOTE: This script uses homebrew to install dotnet-sdk, nodejs, and yarn.

  4. Configure Chat Copilot.

    1. For OpenAI

      ./configure.sh --aiservice OpenAI --apikey {API_KEY}
      • API_KEY: The API key for OpenAI.
    2. For Azure OpenAI

      ./configure.sh --aiservice AzureOpenAI \
                     --endpoint {AZURE_OPENAI_ENDPOINT} \
                     --apikey   {API_KEY}
      • AZURE_OPENAI_ENDPOINT: The Azure OpenAI resource Endpoint address.
      • API_KEY: The API key for Azure OpenAI.

      IMPORTANT: If you deployed models gpt-35-turbo and text-embedding-ada-002 with custom names (instead of the default names), you need to specify the deployment names with three additional parameters:

      ./configure.sh --aiservice AzureOpenAI \
                     --endpoint        {AZURE_OPENAI_ENDPOINT} \
                     --apikey          {API_KEY} \
                     --completionmodel {DEPLOYMENT_NAME} \
                     --plannermodel    {DEPLOYMENT_NAME} \
                     --embeddingmodel  {DEPLOYMENT_NAME}

      --plannermodel will be the same name as --completionmodel

  5. Run Chat Copilot locally. This step starts both the backend API and frontend application.

    ./start.sh

    It may take a few minutes for Yarn packages to install on the first run.

    NOTE: Confirm pop-ups are not blocked and you are logged in with the same account used to register the application.

    • (Optional) To start ONLY the backend:

      ./start-backend.sh

(Optional) Run the memory pipeline

By default, the webapi is configured to work without the memory pipeline for synchronous processing documents locally. To enable asynchronous document processing, you need to configure the webapi and the memory pipeline. Please refer to the webapi README and the memory pipeline README for more information.

Notes: If you run the sample using the Azure Developer CLI (azd), memory pipeline has been configured and deployed, no additional action is required.

(Optional) Enable backend authentication via Azure AD

By default, Chat Copilot runs locally without authentication, using a guest user profile. If you want to enable authentication with Azure Active Directory, follow the steps below.

Requirements

Instructions

  1. Create an application registration for the frontend web app, using the values below

    • Supported account types: "Accounts in this organizational directory only ({YOUR TENANT} only - Single tenant)"
    • Redirect URI (optional): Single-page application (SPA) and use http://localhost:3000.
  2. Create a second application registration for the backend web api, using the values below:

    • Supported account types: "Accounts in this organizational directory only ({YOUR TENANT} only - Single tenant)"
    • Do not configure a Redirect URI (optional)

NOTE: Other account types can be used to allow multitenant and personal Microsoft accounts to use your application if you desire. Doing so may result in more users and therefore higher costs.

Take note of the Application (client) ID for both app registrations as you will need them in future steps.

  1. Expose an API within the second app registration

    1. Select Expose an API from the menu

    2. Add an Application ID URI

      1. This will generate an api:// URI

      2. Click Save to store the generated URI

    3. Add a scope for access_as_user

      1. Click Add scope

      2. Set Scope name to access_as_user

      3. Set Who can consent to Admins and users

      4. Set Admin consent display name and User consent display name to Access copilot chat as a user

      5. Set Admin consent description and User consent description to Allows the accesses to the Copilot chat web API as a user

    4. Add the web app frontend as an authorized client application

      1. Click Add a client application

      2. For Client ID, enter the frontend's application (client) ID

      3. Check the checkbox under Authorized scopes

      4. Click Add application

  2. Add permissions to web app frontend to access web api as user

    1. Open app registration for web app frontend

    2. Go to API Permissions

    3. Click Add a permission

    4. Select the tab APIs my organization uses

    5. Choose the app registration representing the web api backend

    6. Select permissions access_as_user

    7. Click Add permissions

  3. Run the Configure script with additional parameters to set up authentication.

    Powershell

    .\Configure.ps1 -AiService {AI_SERVICE} -APIKey {API_KEY} -Endpoint {AZURE_OPENAI_ENDPOINT} -FrontendClientId {FRONTEND_APPLICATION_ID} -BackendClientId {BACKEND_APPLICATION_ID} -TenantId {TENANT_ID} -Instance {AZURE_AD_INSTANCE}

    Bash

    ./configure.sh --aiservice {AI_SERVICE} --apikey {API_KEY} --endpoint {AZURE_OPENAI_ENDPOINT} --frontend-clientid {FRONTEND_APPLICATION_ID} --backend-clientid {BACKEND_APPLICATION_ID} --tenantid {TENANT_ID} --instance {AZURE_AD_INSTANCE}
    • AI_SERVICE: AzureOpenAI or OpenAI.
    • API_KEY: The API key for Azure OpenAI or for OpenAI.
    • AZURE_OPENAI_ENDPOINT: The Azure OpenAI resource Endpoint address. This is only required when using Azure OpenAI, omit -Endpoint if using OpenAI.
    • FRONTEND_APPLICATION_ID: The Application (client) ID associated with the application registration for the frontend.
    • BACKEND_APPLICATION_ID: The Application (client) ID associated with the application registration for the backend.
    • TENANT_ID : Your Azure AD tenant ID
    • AZURE_AD_INSTANCE (optional): The Azure AD cloud instance for the authenticating users. Defaults to https://login.microsoftonline.com.

    Notes: If you want to use the Azure Developer CLI (azd) to set up authentication, please run the following azd env commands.

    azd env set AZURE_AD_TENANT_ID 'YOUR_TENANT_ID'
    azd env set AZURE_BACKEND_APPLICATION_ID 'YOUR_BACKEND_APPLICATION_ID'
    azd env set AZURE_FRONTEND_APPLICATION_ID 'YOUR_FRONTEND_APPLICATION_ID'
    
  4. Run Chat Copilot locally. This step starts both the backend API and frontend application.

    Powershell

    .\Start.ps1

    Bash

    ./start.sh

    Notes: If you want to use the Azure Developer CLI (azd) to run this project, please run the command azd up.

Troubleshooting

  1. Issue: Unable to load chats.

    Details: interactionin_progress: Interaction is currently in progress.

    Explanation: The WebApp can display this error when the application is configured for a different AAD tenant from the browser, (e.g., personal/MSA account vs work/school account).

    Solution: Either use a private/incognito browser tab or clear your browser credentials/cookies. Confirm you are logged in with the same account used to register the application.

  2. Issue:: Challenges using text completion models, such as text-davinci-003

    Solution: For OpenAI, see model endpoint compatibility for the complete list of current models supporting chat completions. For Azure OpenAI, see model summary table and region availability.

  3. Issue: Localhost SSL certificate errors / CORS errors

    Cert-Issue

    Explanation: Your browser may be blocking the frontend access to the backend while waiting for your permission to connect.

    Solution:

    1. Confirm the backend service is running. Open a web browser and navigate to https://localhost:40443/healthz
      • You should see a confirmation message: Healthy
      • If your browser asks you to acknowledge the risks of visiting an insecure website, you must acknowledge this before the frontend can connect to the backend server.
    2. Navigate to http://localhost:3000 or refresh the page to use the Chat Copilot application.
  4. Issue: Yarn is not working.

    Explanation: You may have the wrong Yarn version installed such as v2.x+.

    Solution: Use the classic version.

    npm install -g yarn
    yarn set version classic
  5. Issue: Missing /usr/share/dotnet/host/fxr folder.

    Details: "A fatal error occurred. The folder [/usr/share/dotnet/host/fxr] does not exist" when running dotnet commands on Linux.

    Explanation: When .NET (Core) was first released for Linux, it was not yet available in the official Ubuntu repo. So instead, many of us added the Microsoft APT repo in order to install it. Now, the packages are part of the Ubuntu repo, and they are conflicting with the Microsoft packages. This error is a result of mixed packages. (Source: StackOverflow)

    Solution:

    # Remove all existing packages to get to a clean state:
    sudo apt remove --assume-yes dotnet*;
    sudo apt remove --assume-yes aspnetcore*;
    sudo apt remove --assume-yes netstandard*;
    
    # Set the Microsoft package provider priority
    echo -e "Package: *\nPin: origin \"packages.microsoft.com\"\nPin-Priority: 1001" | sudo tee /etc/apt/preferences.d/99microsoft-dotnet.pref;
    
    # Update and install dotnet
    sudo apt update;
    sudo apt install --assume-yes dotnet-sdk-7.0;
  6. Issue: Lack of permission to execute webapp/add-redirecturl.sh file.

    Details: "ERROR: failed deploying service 'web': failed invoking event handlers for 'postdeploy', 'postdeploy' hook failed with exit code: '126', Path: './add-redirecturl.sh'. : exit code: 126, stdout: , stderr: /bin/sh: 1: ./add-redirecturl.sh: Permission denied" when the azd deploy command is executed on Linux/macOS, the postdeploy hook of the web is triggered.

    Solution: Add execution permissions to files.

    chmod +x webapp/add-redirecturl.sh
    
  7. Issue: az command is not available.

    Details: "The term 'az' is not recognized as a name of a cmdlet, function, script file, or executable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again" when running azd deploy with backend authentication enabled via Azure AD.

    Explanation: After enabling backend authentication via Azure AD, running azd deploy will trigger the postdeploy hook of the web. The hook will run webapp/add-redirecturl.sh or webapp/add-redirecturl.ps1 script file, and the az command is used in the script.

    Solution: Install Azure CLI and execute the command az login.

A note on branches

Every release is associated with a release branch. For instance, release v0.9 is on a branch called 0.9. Once a release is out, its branch will no longer be updated. The exception to this is the latest release branch, which will only receive bug fixes. This is to provide some stability to those for whom breaking changes and being on the bleeding edge (with the bugs it can entail) is not a desirable option.

Check out our other repos!

If you would like to learn more about Semantic Kernel and AI, you may also be interested in other repos the Semantic Kernel team supports:

Repo Description
Semantic Kernel A lightweight SDK that integrates cutting-edge LLM technology quickly and easily into your apps.
Semantic Kernel Docs The home for Semantic Kernel documentation that appears on the Microsoft learn site.
Semantic Kernel Starters Starter projects for Semantic Kernel to make it easier to get started.
Semantic Memory A service that allows you to create pipelines for ingesting, storing, and querying knowledge.

Join the community

We welcome your contributions and suggestions to the Chat Copilot Sample App! One of the easiest ways to participate is to engage in discussions in the GitHub repository. Bug reports and fixes are welcome!

To learn more and get started:

Code of Conduct

This project has adopted the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ or contact [email protected] with any additional questions or comments.

License

Copyright (c) Microsoft Corporation. All rights reserved.

Licensed under the MIT license.

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