Identity Server 4 - 获取invaid_client错误

我是Identity Server的新手 . 我以前没有配置它 . 但我需要它为我正在进行的项目 .

该API将为Angular JS Client，iOS App和Android App提供服务 . 我们需要实现身份验证和授权 .

Note: 我正在尝试在同一个Web API项目中配置Identity Server和我的API .

我已按照文档并配置Identity Server，如下所示：

在startup.cs中，在 ConfigureServices() 中

services.AddTransient<IProfileService, CustomProfileService>();
        services.AddTransient<IResourceOwnerPasswordValidator, CustomResourceOwnerPasswordValidator>();



        services.AddIdentityServer()
            .AddTemporarySigningCredential()
            // add the resources that need to be secured
            .AddInMemoryApiResources(IdentityServerConfig.Resources.GetApiResources())
            // add the clients that will be access the ApiResources
            .AddInMemoryClients(IdentityServerConfig.Clients.GetClients());

CustomProfileService 和 CustomResourceOwnerPasswordValidator 与此答案相同：https://stackoverflow.com/a/35306021/1910735

在 Configure()

// as this API will also be acting as an
        app.UseIdentityServer();


        // now setup the Identity Server client, this API will also be the client 

        app.UseIdentityServerAuthentication(new IdentityServerAuthenticationOptions
        {
            Authority = "http://localhost:44337",
            RequireHttpsMetadata = false,


            ApiName = "obApi"
        });

这是 GetClients()

public static IEnumerable<Client> GetClients()
    {
        var clients = new List<Client>();



        var websiteGrants = new List<string> { GrantType.ResourceOwnerPassword };
        var secret = new Secret("secret".Sha256());

        var websiteClient = new Client()
        {
            // we will be using Angular JS to access the API - so naming it js
            ClientId = "js",

            // just a human friendly name
            ClientName = "JavaScript Client",

            // set to GrantType.ResourceOwnerPassword - because using Username/Password to login
            AllowedGrantTypes = websiteGrants, 

            // secret for authentication
            //TODO: Change the secret 
            ClientSecrets = { secret },

            // we need to access the fhApi from Angular JS front-end 
            // fhApi is defined in Resources file as an API Resource
            AllowedScopes = { "obApi" }
        };


        clients.Add(websiteClient);

        return clients;
    }

这是 GetApiResources()

public static IEnumerable<ApiResource> GetApiResources()
    {
        // e.g. if we want to protect an API called api1 - then we will add it here
        // these values are hard coded for now - but we can get from DB, config file etc.

        return new List<ApiResource>
                        {
                            new ApiResource("obApi", "Order2Bite API")
                        };
    }

现在因为我想使用Angular JS，iOS和Android我想从Identity Server获取Access Token，然后使用Access Token进行身份验证和授权 .

为此，我试图从JS客户端访问 /connect/token

但是我收到了 invalid_client 错误 .

var user = { client_id: "js", grant_type: 'password', username: "testuser", password: "testpasswrd", scope: 'obApi' };

        var urlEncodedUrl = {
            'Content-Type': 'application/x-www-form-urlencoded',
        };

        this.$http({
            method: 'POST', url: "http://localhost:44337/connect/token",
            headers: urlEncodedUrl,
            data: user,

        })
            .then(data => {
                console.log(data)
            },
            data => {
                console.log(data)

            });

我在服务器端得到的错误是' No client identifier found'：

1 - 为什么我收到此错误？

2 - 由于我需要在JS，Android和iOS中以编程方式获取令牌，我需要使用 /connect/token ，我对此是否正确？我在正确的道路上吗？