以下是一个使用ASP.NET Core调用Google API获取联系人或电子邮件的解决方案,包含代码示例:
首先,确保你已经安装了必要的NuGet包:
接下来,你需要在Google Cloud控制台中创建一个新的OAuth 2.0客户端ID,并设置正确的重定向URL。
在Startup.cs文件中,添加以下代码:
using Google.Apis.Auth.AspNetCore3;
using Google.Apis.PeopleService.v1;
public void ConfigureServices(IServiceCollection services)
{
services.AddControllersWithViews();
services
.AddAuthentication(o =>
{
// This forces challenge results to be handled by Google OpenID Handler, so there's no
// need to add an AccountController that emits challenges for Login.
o.DefaultChallengeScheme = GoogleOpenIdConnectDefaults.AuthenticationScheme;
// This forces forbid results to be handled by Google OpenID Handler, which checks if
// extra scopes are required and does automatic incremental auth.
o.DefaultForbidScheme = GoogleOpenIdConnectDefaults.AuthenticationScheme;
// Default scheme that will handle everything else.
// Once a user is authenticated, the OAuth2 token info is stored in cookies.
o.DefaultScheme = CookieAuthenticationDefaults.AuthenticationScheme;
})
.AddGoogleOpenIdConnect(options =>
{
// You must create a client ID in the Google API Console and configure the callback URL.
options.ClientId = Configuration["Google:ClientId"];
options.ClientSecret = Configuration["Google:ClientSecret"];
options.Scope.Add("openid email");
options.SaveTokens = true;
options.Events.OnCreatingTicket = context =>
{
// Store the access token and the user identity in cookies for further use.
var accessToken = context.AccessToken;
context.Properties.StoreTokens(new[]
{
new AuthenticationToken { Name = "access_token", Value = accessToken }
});
return Task.CompletedTask;
};
});
services.AddAuthorization(options =>
{
options.FallbackPolicy = new AuthorizationPolicyBuilder()
.RequireAuthenticatedUser()
.Build();
});
services.AddHttpClient();
services.AddHttpContextAccessor();
services.AddTransient();
}
public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
// ...
app.UseHttpsRedirection();
app.UseStaticFiles();
app.UseRouting();
app.UseAuthentication();
app.UseAuthorization();
// ...
}
在Controller中,你可以使用以下代码来调用Google API并获取联系人或电子邮件:
using Google.Apis.Auth.AspNetCore3;
using Google.Apis.PeopleService.v1;
public class HomeController : Controller
{
private readonly PeopleServiceService _peopleService;
public HomeController(PeopleServiceService peopleService)
{
_peopleService = peopleService;
}
public async Task Index()
{
var user = await HttpContext.GetIdentityUserAsync();
var request = _peopleService.People.Connections.List("people/me");
request.RequestMaskIncludeField = "person.names,person.email_addresses";
var response = await request.ExecuteAsync();
var connections = response.Connections;
// 处理联系人或电子邮件
return View();
}
}
这是一个基本的示例,你可以根据你的需求进行修改和扩展。