chore: refactoring some code to introduce a common base class for all api classes

.gitignore

@@ -1,3 +1,5 @@
+# Project specific
+tests/appsettings.tests.json
 
 # Created by https://www.gitignore.io/api/dotnetcore,jetbrains+all,visualstudiocode
 # Edit at https://www.gitignore.io/?templates=dotnetcore,jetbrains+all,visualstudiocode

Novaloop.PaymoApi.sln

@@ -5,7 +5,7 @@ VisualStudioVersion = 15.0.26124.0
 MinimumVisualStudioVersion = 15.0.26124.0
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Novaloop.PaymoApi", "src\Novaloop.PaymoApi.csproj", "{A9612B7C-67C1-4B6B-8260-167079A31FAF}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Novaloop.PaymoApi.Tests", "tests\Novaloop.PaymoApi.Tests.csproj", "{202BCB4F-78AF-4E9A-B286-C3147374EB53}"
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Novaloop.PaymoApi.IntegrationTests", "tests\Novaloop.PaymoApi.IntegrationTests.csproj", "{202BCB4F-78AF-4E9A-B286-C3147374EB53}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution

Novaloop.PaymoApi.sln.DotSettings.user

@@ -0,0 +1,4 @@
+<wpf:ResourceDictionary xml:space="preserve" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:s="clr-namespace:System;assembly=mscorlib" xmlns:ss="urn:shemas-jetbrains-com:settings-storage-xaml" xmlns:wpf="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
+	<s:String x:Key="/Default/Environment/UnitTesting/UnitTestSessionStore/Sessions/=dc84371d_002D5ed8_002D46d3_002Dac3d_002D11c77b97626a/@EntryIndexedValue">&lt;SessionState ContinuousTestingMode="0" IsActive="True" Name="All tests from &amp;lt;Novaloop.PaymoApi.IntegrationTests&amp;gt;" xmlns="urn:schemas-jetbrains-com:jetbrains-ut-session"&gt;
+  &lt;Project Location="/home/riscie/novaloop/libs/Novaloop.paymoapi/tests" Presentation="&amp;lt;Novaloop.PaymoApi.IntegrationTests&amp;gt;" /&gt;
+&lt;/SessionState&gt;</s:String></wpf:ResourceDictionary>

src/ClientContacts/ClientContactsApi.cs

@@ -0,0 +1,49 @@
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using Novaloop.PaymoApi.ClientContacts.Models;
+using Novaloop.PaymoApi.Shared;
+
+namespace Novaloop.PaymoApi.ClientContacts
+{
+    public class ClientContactsApi : IClientContactsApi
+    {
+        private readonly IBaseApi<GetClientContactsResponse, ClientContact> _baseApi;
+
+        public ClientContactsApi(IBaseApi<GetClientContactsResponse, ClientContact> baseApi)
+        {
+            _baseApi = baseApi;
+            _baseApi.ResourceUri = "clientcontacts";
+        }
+
+        /// <inheritdoc />
+        public async Task<IEnumerable<ClientContact>> GetClientContacts()
+        {
+            return (await _baseApi.GetAll()).ClientContacts;
+        }
+
+        /// <inheritdoc />
+        public async Task<ClientContact> GetClientContact(int clientContactId)
+        {
+            return (await _baseApi.Get(clientContactId)).ClientContacts.Single();
+        }
+
+        /// <inheritdoc />
+        public async Task<ClientContact> CreateClientContact(ClientContact clientContact)
+        {
+            return (await _baseApi.Create(clientContact)).ClientContacts.Single();
+        }
+
+        /// <inheritdoc />
+        public async Task DeleteClientContact(int clientContactId)
+        {
+            await _baseApi.Delete(clientContactId);
+        }
+
+        /// <inheritdoc />
+        public async Task UpdateClientContact(ClientContact clientContact, int clientContactId)
+        {
+            await _baseApi.Update(clientContact, clientContactId);
+        }
+    }
+}

src/ClientContacts/IClientContactsApi.cs

@@ -0,0 +1,41 @@
+using System.Collections.Generic;
+using System.Threading.Tasks;
+using Novaloop.PaymoApi.ClientContacts.Models;
+
+namespace Novaloop.PaymoApi.ClientContacts
+{
+    public interface IClientContactsApi
+    {
+        /// <summary>
+        /// Receive all existing client contacts
+        /// </summary>
+        Task<IEnumerable<ClientContact>> GetClientContacts();
+
+        /// <summary>
+        /// Retrieve an existing client contact by id
+        /// </summary>
+        /// <param name="clientContactId">id of the contact</param>
+        /// <returns></returns>
+        Task<ClientContact> GetClientContact(int clientContactId);
+
+        /// <summary>
+        /// Create a new client contact
+        /// </summary>
+        Task<ClientContact> CreateClientContact(ClientContact clientContact);
+
+        /// <summary>
+        /// Delete a client contact
+        /// </summary>
+        /// <param name="clientContactId"></param>
+        /// <returns></returns>
+        Task DeleteClientContact(int clientContactId);
+
+        /// <summary>
+        /// Update an existing client contact
+        /// </summary>
+        /// <param name="clientContact"></param>
+        /// <param name="clientContactId"></param>
+        /// <returns></returns>
+        Task UpdateClientContact(ClientContact clientContact, int clientContactId);
+    }
+}

src/ClientContacts/Models/ClientContact.cs

@@ -0,0 +1,44 @@
+using Newtonsoft.Json;
+using Novaloop.PaymoApi.Shared;
+
+namespace Novaloop.PaymoApi.ClientContacts.Models
+{
+    public class ClientContact : BaseModel
+    {
+        [JsonProperty("client_id")]
+        public int ClientId { get; set; }
+
+        [JsonProperty("name")]
+        public string Name { get; set; }
+
+        [JsonProperty("email")]
+        public string Email { get; set; }
+
+        [JsonProperty("mobile")]
+        public string Mobile { get; set; }
+
+        [JsonProperty("phone")]
+        public string Phone { get; set; }
+
+        [JsonProperty("fax")]
+        public string Fax { get; set; }
+
+        [JsonProperty("skype")]
+        public string Skype { get; set; }
+
+        [JsonProperty("notes")]
+        public object Notes { get; set; }
+
+        [JsonProperty("image")]
+        public string Image { get; set; }
+
+        [JsonProperty("is_main")]
+        public bool IsMain { get; set; }
+
+        [JsonProperty("position")]
+        public string Position { get; set; }
+
+        [JsonProperty("access")]
+        public bool Access { get; set; }
+    }
+}

src/ClientContacts/Models/GetClientContactsResponse.cs

@@ -0,0 +1,11 @@
+using System.Collections.Generic;
+using Newtonsoft.Json;
+
+namespace Novaloop.PaymoApi.ClientContacts.Models
+{
+    public class GetClientContactsResponse
+    {
+        [JsonProperty("clientcontacts")]
+        public IEnumerable<ClientContact> ClientContacts { get; set; }
+    }
+}

src/Clients/ClientsApi.cs

@@ -0,0 +1,49 @@
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using Novaloop.PaymoApi.Clients.Models;
+using Novaloop.PaymoApi.Shared;
+
+namespace Novaloop.PaymoApi.Clients
+{
+    public class ClientsApi : IClientsApi
+    {
+        private readonly IBaseApi<ClientsResponse, Client> _baseApi;
+
+        public ClientsApi(IBaseApi<ClientsResponse, Client> baseApi)
+        {
+            _baseApi = baseApi;
+            _baseApi.ResourceUri = "clients";
+        }
+
+        /// <inheritdoc />
+        public async Task<IEnumerable<Client>> GetClients()
+        {
+            return (await _baseApi.GetAll()).Clients;
+        }
+
+        /// <inheritdoc />
+        public async Task<Client> GetClient(int clientId)
+        {
+            return (await _baseApi.Get(clientId)).Clients.Single();
+        }
+
+        /// <inheritdoc />
+        public async Task<Client> CreateClient(Client client)
+        {
+            return (await _baseApi.Create(client)).Clients.Single();
+        }
+
+        /// <inheritdoc />
+        public async Task DeleteClient(int clientId)
+        {
+            await _baseApi.Delete(clientId);
+        }
+
+        /// <inheritdoc />
+        public async Task UpdateClient(Client client, int clientId)
+        {
+            await _baseApi.Update(client, clientId);
+        }
+    }
+}

src/Clients/IClientsApi.cs

@@ -0,0 +1,41 @@
+using System.Collections.Generic;
+using System.Threading.Tasks;
+using Novaloop.PaymoApi.Clients.Models;
+
+namespace Novaloop.PaymoApi.Clients
+{
+    public interface IClientsApi
+    {
+        /// <summary>
+        /// Receive all existing clients
+        /// </summary>
+        Task<IEnumerable<Client>> GetClients();
+
+        /// <summary>
+        /// Retrieve an existing client by id
+        /// </summary>
+        /// <param name="clientId">id of the contact</param>
+        /// <returns></returns>
+        Task<Client> GetClient(int clientId);
+
+        /// <summary>
+        /// Create a new client
+        /// </summary>
+        Task<Client> CreateClient(Client client);
+
+        /// <summary>
+        /// Delete a client
+        /// </summary>
+        /// <param name="clientId"></param>
+        /// <returns></returns>
+        Task DeleteClient(int clientId);
+
+        /// <summary>
+        /// Update an existing client
+        /// </summary>
+        /// <param name="client"></param>
+        /// <param name="clientId"></param>
+        /// <returns></returns>
+        Task UpdateClient(Client client, int clientId);
+    }
+}

src/Clients/Models/Client.cs

@@ -0,0 +1,52 @@
+using Newtonsoft.Json;
+using Novaloop.PaymoApi.Shared;
+
+namespace Novaloop.PaymoApi.Clients.Models
+{
+    public class Client : BaseModel
+    {
+        [JsonProperty("name")]
+        public string Name { get; set; }
+
+        [JsonProperty("address")]
+        public string Address { get; set; }
+
+        [JsonProperty("city")]
+        public string City { get; set; }
+
+        [JsonProperty("state")]
+        public string State { get; set; }
+
+        [JsonProperty("postal_code")]
+        public string PostalCode { get; set; }
+
+        [JsonProperty("country")]
+        public string Country { get; set; }
+
+        [JsonProperty("phone")]
+        public string Phone { get; set; }
+
+        [JsonProperty("fax")]
+        public string Fax { get; set; }
+
+        [JsonProperty("email")]
+        public string Email { get; set; }
+
+        [JsonProperty("website")]
+        public string Website { get; set; }
+
+        [JsonProperty("image")]
+        public string Image { get; set; }
+
+        [JsonProperty("fiscal_information")]
+        public string FiscalInformation { get; set; }
+
+        [JsonProperty("active")]
+        public bool Active { get; set; } = true;
+
+        public override string ToString()
+        {
+            return $"[{Id}] {Name}";
+        }
+    }
+}

src/Clients/Models/ClientsResponse.cs

@@ -0,0 +1,11 @@
+using System.Collections.Generic;
+using Newtonsoft.Json;
+
+namespace Novaloop.PaymoApi.Clients.Models
+{
+    public class ClientsResponse
+    {
+        [JsonProperty("clients")]
+        public IEnumerable<Client> Clients { get; set; }
+    }
+}

src/Exceptions/ApiException.cs

@@ -2,9 +2,9 @@ using System;
 
 namespace Novaloop.PaymoApi.Exceptions
 {
-    public class PaymoApiException : Exception
+    public class ApiException : Exception
     {
-        public PaymoApiException(int statusCode, string message) : base($"[{statusCode}]: {message})")
+        public ApiException(int statusCode, string message) : base($"[{statusCode}]: {message})")
         {
             StatusCode = statusCode;
         }

src/Extensions/ApiOptions.cs

@@ -1,6 +1,6 @@
 namespace Novaloop.PaymoApi.Extensions
 {
-    public class PaymoApiOptions
+    public class ApiOptions
     {
         public string BaseUrl { get; set; } = "https://app.paymoapp.com/";
         public string ApiToken { get; set; }

src/Extensions/HttpResponseMessageExtensions.cs

@@ -10,7 +10,7 @@ namespace Novaloop.PaymoApi.Extensions
         {
             if (!response.IsSuccessStatusCode)
             {
-                throw new PaymoApiException((int) response.StatusCode, await response.Content.ReadAsStringAsync());
+                throw new ApiException((int) response.StatusCode, await response.Content.ReadAsStringAsync());
             }
         }
     }

src/Extensions/PaymoApiExtensions.cs

@@ -1,6 +1,9 @@
 using System;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Options;
+using Novaloop.PaymoApi.ClientContacts;
+using Novaloop.PaymoApi.Clients;
+using Novaloop.PaymoApi.Clients.Models;
 using Novaloop.PaymoApi.Shared;
 using Novaloop.PaymoApi.Tasks;
 
@@ -8,12 +11,15 @@ namespace Novaloop.PaymoApi.Extensions
 {
     public static class PaymoApiExtensions
     {
-        public static IServiceCollection AddPaymoApi(this IServiceCollection services, Action<PaymoApiOptions> options)
+        public static IServiceCollection AddPaymoApi(this IServiceCollection services, Action<ApiOptions> options)
         {
             services.Configure(options);
-            var resolvedOptions = (IOptions<PaymoApiOptions>) services.BuildServiceProvider().GetService(typeof(IOptions<PaymoApiOptions>));
+            var resolvedOptions = (IOptions<ApiOptions>) services.BuildServiceProvider().GetService(typeof(IOptions<ApiOptions>));
-            services.AddHttpClient<PaymoApiClient>(client => { client.BaseAddress = new Uri(resolvedOptions.Value.BaseUrl); });
+            services.AddHttpClient<ApiClient>(client => { client.BaseAddress = new Uri(resolvedOptions.Value.BaseUrl); });
-            services.AddTransient<IPaymoTasksApiService, PaymoTasksApiService>();
+            services.AddTransient<IBaseApi<ClientsResponse, Client>, BaseApi<ClientsResponse, Client>>();
+            services.AddTransient<ITasksApi, TasksApi>();
+            services.AddTransient<IClientContactsApi, ClientContactsApi>();
+            services.AddTransient<IClientsApi, ClientsApi>();
             return services;
         }
     }

src/Novaloop.PaymoApi.csproj

@@ -5,7 +5,7 @@
         <PackageId>Novaloop.PaymoApi</PackageId>
         <title>Access your paymo instance for asp.net core</title>
         <PackageTags>api;paymo;asp.net core;</PackageTags>
-    <Version>0.1.9</Version>
+        <Version>1.0.0</Version>
         <Authors>Matthias Langhard</Authors>
         <Company>Novaloop AG</Company>
         <PackageProjectUrl>https://gitlab.com/novaloop-oss/novaloop.paymoapi</PackageProjectUrl>

src/Shared/ApiClient.cs

@@ -2,9 +2,9 @@ using System.Net.Http;
 
 namespace Novaloop.PaymoApi.Shared
 {
-    public class PaymoApiClient : IPaymoApiClient
+    public class ApiClient : IApiClient
     {
-        public PaymoApiClient(HttpClient client)
+        public ApiClient(HttpClient client)
         {
             Client = client;
         }

src/Shared/BaseApi.cs

@@ -0,0 +1,80 @@
+using System.Net.Http;
+using System.Threading.Tasks;
+using Microsoft.Extensions.Options;
+using Novaloop.PaymoApi.Extensions;
+
+namespace Novaloop.PaymoApi.Shared
+{
+    public class BaseApi<TReturnType, TCreatType> : IBaseApi<TReturnType, TCreatType>
+    {
+        public string ResourceUri { get; set; }
+        private readonly ApiOptions _options;
+        private readonly HttpClient _client;
+
+        public BaseApi(ApiClient apiClient, IOptions<ApiOptions> options)
+        {
+            _options = options.Value;
+            _client = apiClient.Client;
+        }
+
+        /// <summary>
+        /// Receive all entities
+        /// </summary>
+        public async Task<TReturnType> GetAll()
+        {
+            _client.SetApiKeyHeader(_options.ApiToken);
+            var response = await _client.GetAsync($"api/{ResourceUri}");
+            await response.ThrowExceptionWithDetailsIfUnsuccessful();
+            return await response.Content.ReadAsAsync<TReturnType>();
+        }
+
+        /// <summary>
+        /// Retrieve an existing entity
+        /// </summary>
+        /// <param name="entityId">id of the entity</param>
+        /// <returns></returns>
+        public async Task<TReturnType> Get(int entityId)
+        {
+            _client.SetApiKeyHeader(_options.ApiToken);
+            var response = await _client.GetAsync($"api/{ResourceUri}/{entityId}");
+            await response.ThrowExceptionWithDetailsIfUnsuccessful();
+            return await response.Content.ReadAsAsync<TReturnType>();
+        }
+
+        /// <summary>
+        /// Create a new entity
+        /// </summary>
+        public async Task<TReturnType> Create(TCreatType entity)
+        {
+            _client.SetApiKeyHeader(_options.ApiToken);
+            var response = await _client.PostAsJsonAsync($"api/{ResourceUri}", entity);
+            await response.ThrowExceptionWithDetailsIfUnsuccessful();
+            return await response.Content.ReadAsAsync<TReturnType>();
+        }
+
+        /// <summary>
+        /// Delete an entity
+        /// </summary>
+        /// <param name="entityId">id of the entity</param>
+        /// <returns></returns>
+        public async Task Delete(int entityId)
+        {
+            _client.SetApiKeyHeader(_options.ApiToken);
+            var response = await _client.DeleteAsync($"api/{ResourceUri}/{entityId}");
+            await response.ThrowExceptionWithDetailsIfUnsuccessful();
+        }
+
+        /// <summary>
+        /// Update an entity
+        /// </summary>
+        /// <param name="entity">entity information to update the entity with</param>
+        /// <param name="id">id of the entity to update</param>
+        /// <returns></returns>
+        public async Task Update(TCreatType entity, int id)
+        {
+            _client.SetApiKeyHeader(_options.ApiToken);
+            var response = await _client.PutAsJsonAsync($"api/{ResourceUri}/{id}", entity);
+            await response.ThrowExceptionWithDetailsIfUnsuccessful();
+        }
+    }
+}

src/Shared/BaseModel.cs

@@ -0,0 +1,11 @@
+using System;
+
+namespace Novaloop.PaymoApi.Shared
+{
+    public class BaseModel
+    {
+        public int Id { get; set; }
+        public DateTime CreatedOn { get; set; }
+        public DateTime UpdatedOn { get; set; }
+    }
+}

src/Shared/IApiClient.cs

@@ -1,6 +1,6 @@
 namespace Novaloop.PaymoApi.Shared
 {
-    public interface IPaymoApiClient
+    public interface IApiClient
     {
     }
 }

src/Shared/IBaseApi.cs

@@ -0,0 +1,41 @@
+using System.Threading.Tasks;
+
+namespace Novaloop.PaymoApi.Shared
+{
+    public interface IBaseApi<TReturnType, TCreatType>
+    {
+        string ResourceUri { get; set; }
+
+        /// <summary>
+        /// Receive all entities
+        /// </summary>
+        Task<TReturnType> GetAll();
+
+        /// <summary>
+        /// Retrieve an existing entity
+        /// </summary>
+        /// <param name="entityId">id of the entity</param>
+        /// <returns></returns>
+        Task<TReturnType> Get(int entityId);
+
+        /// <summary>
+        /// Create a new entity
+        /// </summary>
+        Task<TReturnType> Create( TCreatType entity);
+
+        /// <summary>
+        /// Delete an entity
+        /// </summary>
+        /// <param name="entityId">id of the entity</param>
+        /// <returns></returns>
+        Task Delete(int entityId);
+
+        /// <summary>
+        /// Update an entity
+        /// </summary>
+        /// <param name="entity">entity information to update the entity with</param>
+        /// <param name="id">id of the entity to update</param>
+        /// <returns></returns>
+        Task Update( TCreatType entity, int id);
+    }
+}

src/Tasks/IPaymoTasksApiService.cs

@@ -1,12 +0,0 @@
-using System.Threading.Tasks;
-using Novaloop.PaymoApi.Tasks.Models;
-
-namespace Novaloop.PaymoApi.Tasks
-{
-    public interface IPaymoTasksApiService
-    {
-        Task<GetTasksResponse> GetTasks();
-        Task<GetTasksResponse> GetTask(int taskId);
-        Task<CreateTaskResponse> CreateTask(CreateTaskRequest createTask);
-    }
-}

src/Tasks/ITasksApi.cs

@@ -0,0 +1,40 @@
+using System.Collections.Generic;
+using System.Threading.Tasks;
+
+namespace Novaloop.PaymoApi.Tasks
+{
+    public interface ITasksApi
+    {
+        /// <summary>
+        /// Receive all existing tasks
+        /// </summary>
+        Task<IEnumerable<Novaloop.PaymoApi.Tasks.Models.Task>> GetTasks();
+
+        /// <summary>
+        /// Retrieve an existing Task by id
+        /// </summary>
+        /// <param name="taskId">id of the task</param>
+        /// <returns></returns>
+        Task<Novaloop.PaymoApi.Tasks.Models.Task> GetTask(int taskId);
+
+        /// <summary>
+        /// Create a new Task
+        /// </summary>
+        Task<Novaloop.PaymoApi.Tasks.Models.Task> CreateTask(Novaloop.PaymoApi.Tasks.Models.Task task);
+
+        /// <summary>
+        /// Delete a task
+        /// </summary>
+        /// <param name="taskId"></param>
+        /// <returns></returns>
+        Task DeleteTask(int taskId);
+
+        /// <summary>
+        /// Update an existing task
+        /// </summary>
+        /// <param name="task"></param>
+        /// <param name="taskId"></param>
+        /// <returns></returns>
+        Task UpdateTask(Novaloop.PaymoApi.Tasks.Models.Task task, int taskId);
+    }
+}

src/Tasks/Models/CreateTaskRequest.cs

@@ -1,20 +0,0 @@
-using System.Collections.Generic;
-using Newtonsoft.Json;
-
-namespace Novaloop.PaymoApi.Tasks.Models
-{
-    public class CreateTaskRequest
-    {
-        [JsonProperty(PropertyName = "name")]
-        public string Name { get; set; }
-
-        [JsonProperty(PropertyName = "description")]
-        public string Description { get; set; }
-
-        [JsonProperty(PropertyName = "tasklist_id")]
-        public int TasklistId { get; set; }
-
-        [JsonProperty(PropertyName = "users")]
-        public List<int> Users { get; set; }
-    }
-}

src/Tasks/Models/CreateTaskResponse.cs

@@ -1,7 +0,0 @@
-namespace Novaloop.PaymoApi.Tasks.Models
-{
-    public class CreateTaskResponse : PaymoTask
-    {
-
-    }
-}

src/Tasks/Models/GetTasksResponse.cs

@@ -1,9 +0,0 @@
-using System.Collections.Generic;
-
-namespace Novaloop.PaymoApi.Tasks.Models
-{
-    public class GetTasksResponse
-    {
-        public IEnumerable<PaymoTask> Tasks { get; set; }
-    }
-}

src/Tasks/Models/PaymoTask.cs

@@ -1,25 +0,0 @@
-using System;
-using System.Collections.Generic;
-
-namespace Novaloop.PaymoApi.Tasks.Models
-{
-    public class PaymoTask
-    {
-        public int Id { get; set; }
-        public string Name { get; set; }
-        public string Code { get; set; }
-        public int ProjectId { get; set; }
-        public int TasklistId { get; set; }
-        public int UserId { get; set; }
-        public bool Complete { get; set; }
-        public bool Billable { get; set; }
-        public int Seq { get; set; }
-        public string Description { get; set; }
-        public object PricePerHour { get; set; }
-        public object DueDate { get; set; }
-        public object BudgetHours { get; set; }
-        public List<int> Users { get; set; }
-        public DateTime CreatedOn { get; set; }
-        public DateTime UpdatedOn { get; set; }
-    }
-}

src/Tasks/Models/Task.cs

@@ -0,0 +1,53 @@
+using System.Collections.Generic;
+using Newtonsoft.Json;
+using Novaloop.PaymoApi.Shared;
+
+namespace Novaloop.PaymoApi.Tasks.Models
+{
+    public class Task : BaseModel
+    {
+        [JsonProperty("name")]
+        public string Name { get; set; }
+
+        [JsonProperty("code")]
+        public string Code { get; set; }
+
+        [JsonProperty("project_id")]
+        public int ProjectId { get; set; }
+
+        [JsonProperty("tasklist_id")]
+        public int TasklistId { get; set; }
+
+        [JsonProperty("user_id")]
+        public int UserId { get; set; }
+
+        [JsonProperty("complete")]
+        public bool Complete { get; set; }
+
+        [JsonProperty("billable")]
+        public bool Billable { get; set; }
+
+        [JsonProperty("seq")]
+        public int Seq { get; set; }
+
+        [JsonProperty("description")]
+        public string Description { get; set; }
+
+        [JsonProperty("price_per_hour")]
+        public object PricePerHour { get; set; }
+
+        [JsonProperty("due_date")]
+        public object DueDate { get; set; }
+
+        [JsonProperty("budget_hours")]
+        public object BudgetHours { get; set; }
+
+        [JsonProperty("users")]
+        public List<int> Users { get; set; }
+
+        public override string ToString()
+        {
+            return $"[{Id}] {Name} ({TasklistId})";
+        }
+    }
+}

src/Tasks/Models/TasksResponse.cs

@@ -0,0 +1,11 @@
+using System.Collections.Generic;
+using Newtonsoft.Json;
+
+namespace Novaloop.PaymoApi.Tasks.Models
+{
+    public class TasksResponse
+    {
+        [JsonProperty("tasks")]
+        public IEnumerable<Task> Tasks { get; set; }
+    }
+}

src/Tasks/PaymoTasksApiService.cs

@@ -1,57 +0,0 @@
-using System.Net.Http;
-using System.Threading.Tasks;
-using Microsoft.Extensions.Options;
-using Novaloop.PaymoApi.Extensions;
-using Novaloop.PaymoApi.Shared;
-using Novaloop.PaymoApi.Tasks.Models;
-
-namespace Novaloop.PaymoApi.Tasks
-{
-    public class PaymoTasksApiService : IPaymoTasksApiService
-    {
-        private readonly PaymoApiOptions _options;
-        private readonly HttpClient _client;
-
-        public PaymoTasksApiService(PaymoApiClient paymoApiClient, IOptions<PaymoApiOptions> options)
-        {
-            _options = options.Value;
-            _client = paymoApiClient.Client;
-        }
-
-        /// <summary>
-        /// Receive all existing tasks
-        /// </summary>
-        public async Task<GetTasksResponse> GetTasks()
-        {
-            _client.SetApiKeyHeader(_options.ApiToken);
-            var response = await _client.GetAsync($"api/tasks");
-            await response.ThrowExceptionWithDetailsIfUnsuccessful();
-            return await response.Content.ReadAsAsync<GetTasksResponse>();
-        }
-
-        /// <summary>
-        /// Retrieve an existing Task by id
-        /// </summary>
-        /// <param name="taskId">id of the task</param>
-        /// <returns></returns>
-        public async Task<GetTasksResponse> GetTask(int taskId)
-        {
-            _client.SetApiKeyHeader(_options.ApiToken);
-            var response = await _client.GetAsync($"api/tasks/{taskId}");
-            await response.ThrowExceptionWithDetailsIfUnsuccessful();
-            return await response.Content.ReadAsAsync<GetTasksResponse>();
-        }
-
-
-        /// <summary>
-        /// Creates a new Task
-        /// </summary>
-        public async Task<CreateTaskResponse> CreateTask(CreateTaskRequest createTaskRequest)
-        {
-            _client.SetApiKeyHeader(_options.ApiToken);
-            var response = await _client.PostAsJsonAsync("api/tasks", createTaskRequest);
-            await response.ThrowExceptionWithDetailsIfUnsuccessful();
-            return await response.Content.ReadAsAsync<CreateTaskResponse>();
-        }
-    }
-}

src/Tasks/TasksApi.cs

@@ -0,0 +1,53 @@
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using Novaloop.PaymoApi.Shared;
+using Novaloop.PaymoApi.Tasks.Models;
+using Task = System.Threading.Tasks.Task;
+
+namespace Novaloop.PaymoApi.Tasks
+{
+    public class TasksApi : ITasksApi
+    {
+        private readonly IBaseApi<TasksResponse, Novaloop.PaymoApi.Tasks.Models.Task> _baseApi;
+
+        public TasksApi(IBaseApi<TasksResponse, Novaloop.PaymoApi.Tasks.Models.Task> baseApi)
+        {
+            _baseApi = baseApi;
+            _baseApi.ResourceUri = "tasks";
+        }
+
+
+        /// <inheritdoc />
+        public async Task<IEnumerable<Novaloop.PaymoApi.Tasks.Models.Task>> GetTasks()
+        {
+            return (await _baseApi.GetAll()).Tasks;
+        }
+
+        /// <inheritdoc />
+        public async Task<Novaloop.PaymoApi.Tasks.Models.Task> GetTask(int taskId)
+        {
+            return (await _baseApi.Get(taskId)).Tasks.Single();
+        }
+
+
+        /// <inheritdoc />
+        public async Task<Novaloop.PaymoApi.Tasks.Models.Task> CreateTask(Novaloop.PaymoApi.Tasks.Models.Task task)
+        {
+            return (await _baseApi.Create(task)).Tasks.Single();
+        }
+
+        /// <inheritdoc />
+        public async Task DeleteTask(int taskId)
+        {
+            await _baseApi.Delete(taskId);
+        }
+
+
+        /// <inheritdoc />
+        public async Task UpdateTask(Novaloop.PaymoApi.Tasks.Models.Task task, int taskId)
+        {
+            await _baseApi.Update(task, taskId);
+        }
+    }
+}

tests/ClientContactsApiTests.cs

@@ -0,0 +1,91 @@
+using System.Linq;
+using Novaloop.PaymoApi.ClientContacts;
+using Novaloop.PaymoApi.ClientContacts.Models;
+using Novaloop.PaymoApi.Clients;
+using Novaloop.PaymoApi.Clients.Models;
+using Novaloop.PaymoApi.Shared;
+using Xunit;
+
+namespace Novaloop.PaymoApi.Tests
+{
+    public class ClientContactsApiTests
+    {
+        private readonly ClientContactsApi _clientContactsApi;
+        private readonly ClientsApi _clientsApi;
+
+        private readonly ClientContact _testClientContact = new ClientContact
+        {
+            Name = "Testclient",
+            Email = "test@client.de"
+        };
+
+
+        public ClientContactsApiTests()
+        {
+            _clientContactsApi = new ClientContactsApi(new BaseApi<GetClientContactsResponse, ClientContact>(DependencyFactory.GeneratePaymoApiClient(), DependencyFactory.GenerateOptions()));
+            _clientsApi = new ClientsApi(new BaseApi<ClientsResponse, Client>(DependencyFactory.GeneratePaymoApiClient(), DependencyFactory.GenerateOptions()));
+        }
+
+
+        [Fact]
+        public async void GetClientContacts()
+        {
+            // Arrange
+
+            // Act
+            var clientContacts = (await _clientContactsApi.GetClientContacts()).ToList();
+
+            // Assert
+            Assert.NotEmpty(clientContacts);
+        }
+
+        [Fact]
+        public async void GetClientContact()
+        {
+            // Arrange
+
+            // Act
+            var clientContacts = (await _clientContactsApi.GetClientContacts()).ToList();
+            var clientContact = await _clientContactsApi.GetClientContact(clientContacts.First().Id);
+
+            // Assert
+            Assert.NotNull(clientContact);
+        }
+
+        [Fact]
+        public async void CreateClientContact()
+        {
+            // Arrange
+            var existingClientContact = (await _clientsApi.GetClients()).First();
+
+            // Act
+            _testClientContact.ClientId = existingClientContact.Id;
+            var createdClientContact = await _clientContactsApi.CreateClientContact(_testClientContact);
+            var clientContact = await _clientContactsApi.GetClientContact(createdClientContact.Id);
+
+            // Assert
+            Assert.Equal(_testClientContact.Name, clientContact.Name);
+            Assert.Equal(_testClientContact.Email, clientContact.Email);
+
+            // Cleanup
+            await _clientContactsApi.DeleteClientContact(createdClientContact.Id);
+        }
+
+        [Fact]
+        public async void DeleteClientContact()
+        {
+            // Arrange
+            var existingClientContact = (await _clientsApi.GetClients()).First();
+            _testClientContact.ClientId = existingClientContact.Id;
+            var createdClientContact = await _clientContactsApi.CreateClientContact(_testClientContact);
+
+            // Act
+            await _clientContactsApi.DeleteClientContact(createdClientContact.Id);
+            var clientContacts = (await _clientContactsApi.GetClientContacts()).ToList();
+
+
+            // Assert
+            Assert.Empty(clientContacts.Where(c => c.Id == createdClientContact.Id));
+        }
+    }
+}

tests/ClientsApiTests.cs

@@ -0,0 +1,98 @@
+using System.Linq;
+using Novaloop.PaymoApi.Clients;
+using Novaloop.PaymoApi.Clients.Models;
+using Novaloop.PaymoApi.Shared;
+using Xunit;
+
+namespace Novaloop.PaymoApi.Tests
+{
+    public class ClientsApiTests
+    {
+        private readonly ClientsApi _clientsApi;
+
+        private readonly Client _testClient = new Client
+        {
+            Name = "Testclient",
+            Email = "test@client.de"
+        };
+
+        public ClientsApiTests()
+        {
+            _clientsApi = new ClientsApi(new BaseApi<ClientsResponse, Client>(DependencyFactory.GeneratePaymoApiClient(), DependencyFactory.GenerateOptions()));
+        }
+
+
+        [Fact]
+        public async void GetClients()
+        {
+            // Arrange
+
+            // Act
+            var clients = (await _clientsApi.GetClients()).ToList();
+
+            // Assert
+            Assert.NotEmpty(clients);
+        }
+
+        [Fact]
+        public async void GetClient()
+        {
+            // Arrange
+
+            // Act
+            var clients = (await _clientsApi.GetClients()).ToList();
+            var client = await _clientsApi.GetClient(clients.First().Id);
+
+            // Assert
+            Assert.NotNull(client);
+        }
+
+        [Fact]
+        public async void CreateClient()
+        {
+            // Arrange
+
+            // Act
+            var createdClient = await _clientsApi.CreateClient(_testClient);
+            var client = await _clientsApi.GetClient(createdClient.Id);
+
+            // Assert
+            Assert.Equal(_testClient.Name, client.Name);
+            Assert.Equal(_testClient.Email, client.Email);
+
+            // Cleanup
+            await _clientsApi.DeleteClient(createdClient.Id);
+        }
+
+        [Fact]
+        public async void DeleteClient()
+        {
+            // Arrange
+            var createdClient = await _clientsApi.CreateClient(_testClient);
+
+            // Act
+            await _clientsApi.DeleteClient(createdClient.Id);
+            var clients = (await _clientsApi.GetClients()).ToList();
+
+
+            // Assert
+            Assert.Empty(clients.Where(c => c.Id == createdClient.Id));
+        }
+
+        [Fact]
+        public async void UpdateClient()
+        {
+            // Arrange
+            var createdClient = await _clientsApi.CreateClient(_testClient);
+            var clientUpdateInfo = new Client {Name = "Updated"};
+
+            // Act
+            await _clientsApi.UpdateClient(clientUpdateInfo, createdClient.Id);
+            var updatedClient = await _clientsApi.GetClient(createdClient.Id);
+
+
+            // Assert
+            Assert.Equal(clientUpdateInfo.Name, updatedClient.Name);
+        }
+    }
+}

tests/DependencyFactory.cs

@@ -0,0 +1,34 @@
+using System;
+using System.Net.Http;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.Options;
+using Novaloop.PaymoApi.Extensions;
+using Novaloop.PaymoApi.Shared;
+
+namespace Novaloop.PaymoApi.Tests
+{
+    public static class DependencyFactory
+    {
+        public static ApiClient GeneratePaymoApiClient()
+        {
+            return new ApiClient(new HttpClient {BaseAddress = new Uri("https://app.paymoapp.com/")});
+        }
+
+        public static IOptions<ApiOptions> GenerateOptions()
+        {
+            var paymoToken = new ConfigurationBuilder()
+                .SetBasePath(AppContext.BaseDirectory)
+                .AddJsonFile("appsettings.tests.json", true, true)
+                .AddEnvironmentVariables()
+                .Build()
+                .GetSection("PaymoApiIntegrationTests:PaymoTestProjectToken").Value;
+
+            if (string.IsNullOrWhiteSpace(paymoToken))
+            {
+                throw new ArgumentException("Please set the environment variable 'PAYMOAPIINTEGRATIONTESTS__PAYMOTESTPROJECTTOKEN' with the token of your paymo test-project. Look inside Bitwarden if you work @ Novaloop.");
+            }
+
+            return Options.Create(new ApiOptions {ApiToken = paymoToken});
+        }
+    }
+}

tests/Novaloop.PaymoApi.IntegrationTests.csproj

@@ -0,0 +1,33 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <TargetFramework>netcoreapp3.1</TargetFramework>
+
+        <IsPackable>false</IsPackable>
+
+        <RootNamespace>Novaloop.PaymoApi.Tests</RootNamespace>
+    </PropertyGroup>
+
+    <ItemGroup>
+        <PackageReference Include="Microsoft.Extensions.Configuration" Version="5.0.0" />
+        <PackageReference Include="Microsoft.Extensions.Configuration.EnvironmentVariables" Version="5.0.0" />
+        <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="5.0.0" />
+        <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.9.1" />
+        <PackageReference Include="xunit" Version="2.4.1" />
+        <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3">
+          <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+          <PrivateAssets>all</PrivateAssets>
+        </PackageReference>
+    </ItemGroup>
+
+    <ItemGroup>
+      <ProjectReference Include="..\src\Novaloop.PaymoApi.csproj" />
+    </ItemGroup>
+
+    <ItemGroup>
+      <None Update="appsettings.tests.json">
+        <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+      </None>
+    </ItemGroup>
+
+</Project>

tests/Novaloop.PaymoApi.Tests.csproj

@@ -1,15 +0,0 @@
-<Project Sdk="Microsoft.NET.Sdk">
-
-    <PropertyGroup>
-        <TargetFramework>netcoreapp3.1</TargetFramework>
-
-        <IsPackable>false</IsPackable>
-    </PropertyGroup>
-
-    <ItemGroup>
-        <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.9.1"/>
-        <PackageReference Include="xunit" Version="2.4.1"/>
-        <PackageReference Include="xunit.runner.visualstudio" Version="2.4.0" />
-    </ItemGroup>
-
-</Project>

tests/TasksApiTests.cs

@@ -0,0 +1,109 @@
+using System.Linq;
+using Novaloop.PaymoApi.Shared;
+using Novaloop.PaymoApi.Tasks;
+using Novaloop.PaymoApi.Tasks.Models;
+using Xunit;
+using Xunit.Abstractions;
+
+namespace Novaloop.PaymoApi.Tests
+{
+    public class TasksApiTests
+    {
+        private readonly ITestOutputHelper _testOutputHelper;
+        private readonly TasksApi _tasksApi;
+        private readonly Task _testTask;
+
+        public TasksApiTests(ITestOutputHelper testOutputHelper)
+        {
+            _testOutputHelper = testOutputHelper;
+            _tasksApi = new TasksApi(new BaseApi<TasksResponse, Task>(DependencyFactory.GeneratePaymoApiClient(), DependencyFactory.GenerateOptions()));
+
+            _testTask = new Task
+            {
+                Name = "Testtask",
+                Description = "Just a little task"
+            };
+        }
+
+
+        [Fact]
+        public async void GetTasks()
+        {
+            // Arrange
+
+            // Act
+            var tasks = (await _tasksApi.GetTasks()).ToList();
+
+            // Assert
+            Assert.NotEmpty(tasks);
+            _testOutputHelper.WriteLine(string.Join(",", tasks));
+        }
+
+        [Fact]
+        public async void GetTask()
+        {
+            // Arrange
+
+            // Act
+            var tasks = (await _tasksApi.GetTasks()).ToList();
+            var task = await _tasksApi.GetTask(tasks.First().Id);
+
+            // Assert
+            Assert.NotNull(task);
+        }
+
+        [Fact]
+        public async void CreateTask()
+        {
+            // Arrange
+            var existingTaskListId = (await _tasksApi.GetTasks()).First().TasklistId;
+
+            // Act
+            _testTask.TasklistId = existingTaskListId;
+            var createdTask = await _tasksApi.CreateTask(_testTask);
+            var task = await _tasksApi.GetTask(createdTask.Id);
+
+            // Assert
+            Assert.Equal(_testTask.Name, task.Name);
+            Assert.Equal(_testTask.Description, task.Description);
+
+            // Cleanup
+            await _tasksApi.DeleteTask(createdTask.Id);
+        }
+
+        [Fact]
+        public async void DeleteTask()
+        {
+            // Arrange
+            var existingTaskListId = (await _tasksApi.GetTasks()).First().TasklistId;
+            _testTask.TasklistId = existingTaskListId;
+            var createdTask = await _tasksApi.CreateTask(_testTask);
+
+            // Act
+            await _tasksApi.DeleteTask(createdTask.Id);
+            var tasks = (await _tasksApi.GetTasks()).ToList();
+
+
+            // Assert
+            Assert.Empty(tasks.Where(c => c.Id == createdTask.Id));
+        }
+
+        [Fact]
+        public async void UpdateTask()
+        {
+            // Arrange
+            var existingTaskListId = (await _tasksApi.GetTasks()).First().TasklistId;
+            _testTask.TasklistId = existingTaskListId;
+            var createdTask = await _tasksApi.CreateTask(_testTask);
+            var taskUpdateInfo = new Task {Name = "Updated", TasklistId = _testTask.TasklistId};
+
+            // Act
+            await _tasksApi.UpdateTask(taskUpdateInfo, createdTask.Id);
+            var updatedTask = await _tasksApi.GetTask(createdTask.Id);
+
+
+            // Assert
+            Assert.Equal(taskUpdateInfo.Name, updatedTask.Name);
+        }
+    }
+}

tests/UnitTest1.cs

@@ -1,13 +0,0 @@
-using Xunit;
-
-namespace Novaloop.PaymoApi.Tests
-{
-    public class UnitTest1
-    {
-        [Fact]
-        public void Test1()
-        {
-            Assert.True(true);
-        }
-    }
-}