Data; using System. Get fileId. Execute ; Console. Title ; Console. Description ; Console. IsNullOrEmpty file. Create new Uri file. DownloadUrl ; authenticator. GetResponse ; if response. Args: service: Drive API service instance. Returns: File's content if successful, None otherwise. Base or file object, the stream that the Drive file's contents will be written to.
Do if err! Title fmt. Description fmt. Service, t http. Close if err! ReadAll resp. Body if err! Your app must initiate the sign-in process by contacting the Microsoft account authorization web service with a specified scope, and receive an access token. The flow follows standard OAuth 2. Scopes determine what type of access the app is granted when the user is signed in.
All scopes support single sign-on on the web, which means that if a user is already signed in to OneDrive, then the user can skip the authentication flow and go straight to the authorization flow. The easiest authentication flow is the token flow. This flow is useful for quickly obtaining an access token to use the OneDrive API in an interactive fashion. This flow does not provide a refresh token, so it can't be used for long term access to the OneDrive API.
To start the sign-in process with the token flow, use a web browser or web-browser control to load a URL request. Upon successful authentication and authorization of your application, the web browser will be redirected to your redirect URL with additional parameters added to the URL. The code flow for authentication is a three-step process with separate calls to authenticate and authorize the application and to generate an access token to use the OneDrive API.
This also allows your application to receive a refresh token that will enable long-term use of the API in some scenarios, to allow access when the user isn't actively using your application. To start the sign-in process with the code flow, use a web browser or web-browser control to load this URL request.
After you have received the code value, you can redeem this code for a set of tokens that allow you to authenticate with the OneDrive API. To redeem the code, make the following request:. You can request a new access token by using the refresh token if available , or by repeating the authentication request from the beginning. If your app has requested access to wl. You can request a new access token by using the refresh token if available or by repeating the authentication request from the beginning.
This call will remove any cookies that enable single sign-on to occur and ensure that next time your app launches the sign in experience, the user will be requested to enter a username and password to continue. After removing the cookie, the browser will be redirected to the redirect URL you provided.
Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4. For details, see the Google Developers Site Policies. Guides Reference Samples Support Switch to v2. Manage files and folders. Handle changes and revisions. Integrate with the Drive UI. Integrate Drive widgets into your web app. Integrate with shared drives. Handle errors and improve performance.
Publish your Drive app. Stay updated. Notice: important security update for Drive document URLs and resource keys. For more information, refer to Access link-shared files using resource keys. About authorization protocols Your application must use OAuth 2.
Authorizing requests with OAuth 2. The following general process applies to all application types: When you create your application, you register it using the Google API Console. Google then provides information you'll need later, such as a client ID and a client secret.
When your application needs access to user data, it asks Google for a particular scope of access. Google displays a consent screen to the user, asking them to authorize your application to request some of their data. If the user approves, then Google gives your application a short-lived access token. Your application requests user data, attaching the access token to the request.
If Google determines that your request and the token are valid, it returns the requested data. Here's the OAuth 2. Restricted Where: Recommended - These scopes provides the smallest scope of authorization access and does not require any app verification or security assessment.
Save refresh tokens in long-term storage You must save refresh tokens in secure long-term storage and continue to use them as long as they remain valid. Select scopes for a new app When your app is installed, a user is asked to validate the scopes used by the app. Authenticate users Use OAuth 2. Handle declined access requests Users can click No Thanks in the OAuth dialog to decline your app access to their files.
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