Asp.net 如何在没有OAuth的情况下获得LinkedIn用户技能、教育和职位

我正在开发一个ASP.NET核心应用程序，其中用户必须使用单个数据库帐户。在所有教程中都明确指出，在创建项目时必须选择“无身份验证”。我不明白为什么

我想让用户能够登录LinkedIn，然后获得他们的邮件、姓名和其他信息。我可以通过以下方式实现：

app.UseLinkedInAuthentication(AuthenticationSettings.LinkedInOptions(
                Configuration["LinkedIn:ClientId"],
                Configuration["LinkedIn:ClientSecret"]));

在Startup.cs和中（加上文档中的所有其他步骤）

var loginProviders=SignInManager.GetExternalAuthenticationSchemes（）.ToList（）；
如果（loginProviders.Count==0）
{

没有配置外部身份验证服务。请参阅
有关设置此ASP.NET应用程序以支持通过外部服务登录的详细信息，请参阅。

}
其他的
{

@foreach（loginProviders中的var提供程序）
{
@provider.AuthenticationScheme
}

}

在_Layout.cshtml中：

我按下按钮，要求用户授予应用程序权限，我获取个人数据，但我如何获取其他信息（技能、教育、职位等），如：

---

但是如果没有OAuth，或者在创建项目时如何在选择授权的情况下实现OAuth？

我使用的是单个数据库帐户，这就是我如何使其工作的：

在Startup.cs中

app.UseLinkedInAuthentication(AuthenticationSettings.LinkedInOptions(

                Configuration["LinkedIn:ClientId"],
                Configuration["LinkedIn:ClientSecret"]

创建一个类AuthentificationSettings，如下所示：

public class AuthenticationSettings
    {
      public static LinkedInAuthenticationOptions LinkedInOptions(string clientId, string clientSecret)
        {

            if (string.IsNullOrEmpty(clientId))
            {
                throw new ArgumentNullException($"{nameof(clientId)} is null or empty");
            }

            if (string.IsNullOrEmpty(clientSecret))
            {
                throw new ArgumentNullException($"{nameof(clientSecret)} is null or empty");
            }

            LinkedInAuthenticationOptions options = new LinkedInAuthenticationOptions
            {

                ClientId = clientId,
                ClientSecret = clientSecret,
                SaveTokens = true,
                Events = new OAuthEvents
                {
                    OnCreatingTicket = async ctx =>
                    {
                        ctx.Identity.AddClaim(new Claim("access_token", ctx.AccessToken));
                        ctx.Identity.AddClaim(new Claim("refresh_token", ctx.AccessToken));
                        ctx.Identity.AddClaim(new Claim("ExpiresIn", ctx.ExpiresIn.Value.Seconds.ToString()));


                        // request is the GET request for linkedin

                        var request = new HttpRequestMessage(HttpMethod.Get, "https://api.linkedin.com/v1/people/~:(first-name,last-name,headline,picture-url,industry,summary,positions:(title,summary,start-date,end-date,company:(name,industry)))   ");

                        request.Headers.Authorization =new AuthenticationHeaderValue("Bearer", ctx.AccessToken);
                        request.Headers.Add("x-li-format", "json");

                        var response = await ctx.Backchannel.SendAsync(request, ctx.HttpContext.RequestAborted);
                        response.EnsureSuccessStatusCode();

                        // In user is stored the profile details

                        var user = JObject.Parse(await response.Content.ReadAsStringAsync());


                        // Save the linkedin details in variabels

                        string json = user.ToString();

                        LinkedinCandidate linkedinProfile = JsonConvert.DeserializeObject<LinkedinCandidate>(json);

                        var firstName = linkedinProfile.firstName;
                        var lastName = linkedinProfile.lastName;
                        var headline = linkedinProfile.headline;
                        var pictureUrl = linkedinProfile.pictureUrl;
                        var summaryProfile = linkedinProfile.summary;

                        var summaryCOmpany = linkedinProfile.positions.values[0].summary;
                        var titleJob = linkedinProfile.positions.values[0].title;
                        var companyName = linkedinProfile.positions.values[0].company.name;
                        var industry = linkedinProfile.positions.values[0].company.industry;
                        var monthStart = linkedinProfile.positions.values[0].startDate.month;
                        var yearStart = linkedinProfile.positions.values[0].startDate.year;



                        await Task.FromResult(0);
                    },
                    OnRemoteFailure = ctx =>
                    {
                        // Handle remote errors

                        return Task.FromResult(0);
                    }
                }


            };

            return options;
        }
    }

public class AuthenticationSettings
    {
      public static LinkedInAuthenticationOptions LinkedInOptions(string clientId, string clientSecret)
        {

            if (string.IsNullOrEmpty(clientId))
            {
                throw new ArgumentNullException($"{nameof(clientId)} is null or empty");
            }

            if (string.IsNullOrEmpty(clientSecret))
            {
                throw new ArgumentNullException($"{nameof(clientSecret)} is null or empty");
            }

            LinkedInAuthenticationOptions options = new LinkedInAuthenticationOptions
            {

                ClientId = clientId,
                ClientSecret = clientSecret,
                SaveTokens = true,
                Events = new OAuthEvents
                {
                    OnCreatingTicket = async ctx =>
                    {
                        ctx.Identity.AddClaim(new Claim("access_token", ctx.AccessToken));
                        ctx.Identity.AddClaim(new Claim("refresh_token", ctx.AccessToken));
                        ctx.Identity.AddClaim(new Claim("ExpiresIn", ctx.ExpiresIn.Value.Seconds.ToString()));


                        // request is the GET request for linkedin

                        var request = new HttpRequestMessage(HttpMethod.Get, "https://api.linkedin.com/v1/people/~:(first-name,last-name,headline,picture-url,industry,summary,positions:(title,summary,start-date,end-date,company:(name,industry)))   ");

                        request.Headers.Authorization =new AuthenticationHeaderValue("Bearer", ctx.AccessToken);
                        request.Headers.Add("x-li-format", "json");

                        var response = await ctx.Backchannel.SendAsync(request, ctx.HttpContext.RequestAborted);
                        response.EnsureSuccessStatusCode();

                        // In user is stored the profile details

                        var user = JObject.Parse(await response.Content.ReadAsStringAsync());


                        // Save the linkedin details in variabels

                        string json = user.ToString();

                        LinkedinCandidate linkedinProfile = JsonConvert.DeserializeObject<LinkedinCandidate>(json);

                        var firstName = linkedinProfile.firstName;
                        var lastName = linkedinProfile.lastName;
                        var headline = linkedinProfile.headline;
                        var pictureUrl = linkedinProfile.pictureUrl;
                        var summaryProfile = linkedinProfile.summary;

                        var summaryCOmpany = linkedinProfile.positions.values[0].summary;
                        var titleJob = linkedinProfile.positions.values[0].title;
                        var companyName = linkedinProfile.positions.values[0].company.name;
                        var industry = linkedinProfile.positions.values[0].company.industry;
                        var monthStart = linkedinProfile.positions.values[0].startDate.month;
                        var yearStart = linkedinProfile.positions.values[0].startDate.year;



                        await Task.FromResult(0);
                    },
                    OnRemoteFailure = ctx =>
                    {
                        // Handle remote errors

                        return Task.FromResult(0);
                    }
                }


            };

            return options;
        }
    }

{  "firstName": "",  
    "headline": "",  
    "lastName": "",  
    "pictureUrl": "",  
    "positions": {    
                    "_total": 1,    
                    "values": [   {        
                                    "company": {          
                                                "industry": "",          
                                                "name": ""        },        
                                                "startDate": {          
                                                                "month": ,          
                                                                "year":         
                                                                },        
                                                "summary": "",        
                                                "title": ""      
                                                }    
                              ] 
                },  
    "summary": ""}