Ex1 build http clients

POC.CodelessAPIClient.WebApp/Configs.cs

@@ -0,0 +1,7 @@
+namespace POC.CodelessAPIClient.WebApp;
+
+public class Configs
+{
+    public string ApiUrl { get; set; }
+    public string ApiBearerToken { get; set; }
+}

POC.CodelessAPIClient.WebApp/HttpClients/AuthClassicClient.cs

@@ -0,0 +1,18 @@
+namespace POC.CodelessAPIClient.WebApp.HttpClients;
+
+public class AuthClassicClient : IAuthorizedClient
+{
+    private readonly HttpClient _http;
+    public AuthClassicClient(HttpClient http)
+    {
+        _http = http;
+    }
+
+    public async Task<string> GetAuthorization()
+    {
+        var result = await _http.GetAsync("SecureStatus");
+        if (!result.IsSuccessStatusCode)
+            return "Not Authorized";
+        return await result.Content.ReadAsStringAsync();
+    }
+}

POC.CodelessAPIClient.WebApp/HttpClients/ClassicClient.cs

@@ -0,0 +1,48 @@
+using POC.CodelessAPIClient.Models;
+
+namespace POC.CodelessAPIClient.WebApp.HttpClients;
+
+public class ClassicClient : IClient
+{
+    private readonly HttpClient _http;
+
+    public ClassicClient(HttpClient http)
+    {
+        _http = http;
+    }
+
+    public async Task<ShoppingList> Get()
+    {
+        var result = await _http.GetFromJsonAsync<ShoppingList>("ShoppingList");
+        if (result is null) throw new InvalidOperationException("Empty response from GET /ShoppingList");
+        return result;
+    }
+
+    public async Task<ShoppingList> AddItem(ShoppingListItem item)
+    {
+        var resp = await _http.PostAsJsonAsync("ShoppingList", item);
+        resp.EnsureSuccessStatusCode();
+        var list = await resp.Content.ReadFromJsonAsync<ShoppingList>();
+        if (list is null) throw new InvalidOperationException("Empty response from POST /ShoppingList");
+        return list;
+    }
+
+    public async Task<ShoppingList> UpdateItem(ShoppingListItem item)
+    {
+        var resp = await _http.PutAsJsonAsync("ShoppingList", item);
+        resp.EnsureSuccessStatusCode();
+        var list = await resp.Content.ReadFromJsonAsync<ShoppingList>();
+        if (list is null) throw new InvalidOperationException("Empty response from PUT /ShoppingList");
+        return list;
+    }
+
+    public async Task<ShoppingList> RemoveItem(ShoppingListItem item)
+    {
+        if (item.Id is null) throw new ArgumentException("Item Id must be set for delete.", nameof(item));
+        var resp = await _http.DeleteAsync($"ShoppingList/{item.Id}");
+        resp.EnsureSuccessStatusCode();
+        var list = await resp.Content.ReadFromJsonAsync<ShoppingList>();
+        if (list is null) throw new InvalidOperationException("Empty response from DELETE /ShoppingList/{id}");
+        return list;
+    }
+}

POC.CodelessAPIClient.WebApp/Program.cs

@@ -13,8 +13,21 @@ public static void Main(string[] args)
         builder.Services.AddRazorComponents()
             .AddInteractiveServerComponents();
 
-        builder.Services.AddSingleton<IClient, FakeClient>();
-        builder.Services.AddSingleton<IAuthorizedClient, AuthFakeClient>();
+        var configs = builder.Configuration.GetSection("Configurations").Get<Configs>();
+
+        // Register typed HttpClient for ClassicClient using base URL from configs
+        builder.Services.AddHttpClient<IClient, ClassicClient>((sp, http) =>
+        {
+            http.BaseAddress = new Uri(configs!.ApiUrl.TrimEnd('/') + "/");
+        });
+
+        // Register typed HttpClient for AuthClassicClient using base URL from configs
+        builder.Services.AddHttpClient<IAuthorizedClient, AuthClassicClient>((sp, http) =>
+        {
+            http.BaseAddress = new Uri(configs!.ApiUrl.TrimEnd('/') + "/");
+            // Add Authorisation header
+            http.DefaultRequestHeaders.Add("Authorization", $"Bearer {configs.ApiBearerToken}");
+        });
 
         var app = builder.Build();
 

POC.CodelessAPIClient.WebApp/appsettings.json

@@ -5,5 +5,9 @@
       "Microsoft.AspNetCore": "Warning"
     }
   },
-  "AllowedHosts": "*"
+  "AllowedHosts": "*",
+  "Configurations": {
+    "ApiUrl": "http://localhost:5052",
+    "ApiBearerToken": "your-secret-token"
+  }
 }