# Set up and initialize

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Set up the development environment, and initiate the SDK.

## Set up the development environment

-   Download or clone the package.
-   Launch the visual studio and open the project file.
-   Change the project configuration to **Release**.

![](/img/1536105298200.png)

Set the **sdk_demo** properties as follows:

-   In the **Configuration Properties** tab, go into the **General** subtab. Then set the **Output Directory** to the **Bin** folder.

![](/img/1536105328600.png)

-   In the **Configuration Properties** tab, go into the **VC++ Directories** subtab. Set the **Include Directories** option to the **"h"** folder and set the **Library Directories** option to the **"lib"** folder.

![](/img/1536105349100.png)

-   In the **Linker** tab, click the **General** subtab. Set the **Output File** to where you want the output **"exe"** file to be.

![](/img/1536105371200.png)

-   Get the **App Key** and **Secret** from your account - check the **Credential** tab.
-   You might need the API Key and Secret for making REST calls as well.

Our Windows SDK exposes **four** different services described below.
Further detail on how to use these services can be found in the
**Developer Guide** that is bundled inside the download.

-   The **Authentication service** is used for authenticating users. This is done by passing the account App Key and Secret or by passing Zoom login credentials.

-   The **Pre-Meeting service** is used to schedule, edit or delete meetings.

-   The **Meeting service** is used to create scheduled or impromptu meetings and exposes several controller interfaces to control the meetings.

-   The **Setting service** is used to enable or disable in-meeting controls.

The app can follow the same steps for managing webinars.

## Initialize the SDK

To initialize the Meeting SDK for Windows, authenticate the SDK, create a JWT token, authenticate the users, and enable logging.

### Authenticate the SDK

To authenticate the SDK, initialize the Meeting SDK for Windows and create the authentication service. Find the APIs in `zoom_sdk.h`, and then call Zoom SDK APIs in the main UI thread for thread-safe operation.

To authenticate the SDK, initialize the Meeting SDK for Windows, create the authentication service, and call the `SDKAuth` method. Include the header files `auth_service_interface.h` and `zoom_sdk.h` and call the `SDKAuth` method from the main UI thread for thread-safe operation.

> Do not use a raw IP address as the web domain. This will expose your app to vulnerability issues. For more information, see our [security practices](/docs/meeting-sdk/security-practices/).

```cpp
void AuthenticateSDK()
{
   // Initialize SDK with InitParam object
   ZOOM_SDK_NAMESPACE::InitParam initParam;
   ZOOM_SDK_NAMESPACE::SDKError initReturnVal(ZOOM_SDK_NAMESPACE::SDKERR_UNINITIALIZE);
   // Set web domain to zoom.us
   initParam.strWebDomain = L"https://zoom.us";
   initReturnVal = ZOOM_SDK_NAMESPACE::InitSDK(initParam);
   // Check if InitSDK call succeeded
   if (initReturnVal == ZOOM_SDK_NAMESPACE::SDKError::SDKERR_SUCCESS)
   {
       // Create IAuthService object to perform Auth actions
       ZOOM_SDK_NAMESPACE::IAuthService* authService;
       ZOOM_SDK_NAMESPACE::SDKError authServiceInitReturnVal = ZOOM_SDK_NAMESPACE::CreateAuthService(&authService);
       if (authServiceInitReturnVal == ZOOM_SDK_NAMESPACE::SDKError::SDKERR_SUCCESS)
       {
           // Create IAuthServiceEvent object to listen for Auth events from SDK
           ZOOM_SDK_NAMESPACE::IAuthServiceEvent* authListener;
           // Auth SDK with AuthContext object
           ZOOM_SDK_NAMESPACE::AuthContext authContext;
           ZOOM_SDK_NAMESPACE::SDKError authCallReturnValue(ZOOM_SDK_NAMESPACE::SDKERR_UNAUTHENTICATION);
           // Call SetEvent to assign your IAuthServiceEvent listener
           yourAuthServiceEventListener = new YourAuthServiceEventListener();
           authListener = yourAuthServiceEventListener;
           authService->SetEvent(authListener);
           // Provide your JWT to the AuthContext object
           authContext.jwt_token = L"Your JWT token here";
           authCallReturnValue = authService->SDKAuth(authContext);
           if (authCallReturnValue == ZOOM_SDK_NAMESPACE::SDKError::SDKERR_SUCCESS)
           {
                   // SDK Auth in progress
           }
       }
   }
}
void yourAuthServiceEventListener::onAuthenticationReturn(ZOOM_SDK_NAMESPACE::AuthResult ret) {
 if (ret == ZOOM_SDK_NAMESPACE::SDKError::AUTHRET_JWTTOKENWRONG)
 {
   // SDK Auth call failed because the JWT token is invalid.
 } else if (ret == ZOOM_SDK_NAMESPACE::SDKError::SDKERR_SUCCESS)
 {
   // SDK Authenticated successfully
 }
}
```

### Create a JWT token

Next, create a JWT token using your Client ID and Client Secret app credentials. Generate your JWT token in the production environment on your backend server. Do not generate the JWT token on your front end or production application, as this risks exposing your credentials. See [Meeting SDK authorization](/docs/meeting-sdk/auth/) for details.

### Authenticate the user

Before you start using the Meeting SDK for Windows, authenticate the user first.

-   **To log in an end user**, see [Support OAuth in SDK app](/docs/integrations/oauth/) for details.
-   **To log out an end user**, use this code:

```cpp
void logoutUser()
{
   // Call Logout on your IAuthService instance
   ZOOM_SDK_NAMESPACE::SDKError logoutCallReturnValue(ZOOM_SDK_NAMESPACE::SDKERR_UNKNOWN);
   logoutCallReturnValue = yourSDKInstance->authService->Logout();
   if (logoutCallReturnValue == ZOOM_SDK_NAMESPACE::SDKError::SDKERR_SUCCESS)
   {
       // Logout call succeeded, listen for logout result using the onLogoutRet callback
   }
}
```

### Enable logging

To enable logging, set the `enableLogByDefault` parameter in your `InitParam` object to `true`.

```cpp
initParam.enableLogByDefault = true;
```

Once the log feature is initialized, the log file appears under `%appdata%/zoomsdk/logs/`.