From bde7f4f5776378927eaf5531a9a0ea66e5661035 Mon Sep 17 00:00:00 2001
From: Dmitry Kozlov <jusper@yandex.ru>
Date: Wed, 4 Dec 2024 18:37:58 +0100
Subject: [PATCH] added routes for getting individial records from Contacts and
 Accounts lists of Dynamics 365 CRM

---
 FunctionApp/Dynamics365/CRM/Accounts.cs  | 40 ++++++++++++++++++++---
 FunctionApp/Dynamics365/CRM/Authorize.cs |  2 +-
 FunctionApp/Dynamics365/CRM/Contacts.cs  | 41 +++++++++++++++++++++---
 3 files changed, 72 insertions(+), 11 deletions(-)

diff --git a/FunctionApp/Dynamics365/CRM/Accounts.cs b/FunctionApp/Dynamics365/CRM/Accounts.cs
index 8066185..e263b26 100644
--- a/FunctionApp/Dynamics365/CRM/Accounts.cs
+++ b/FunctionApp/Dynamics365/CRM/Accounts.cs
@@ -18,15 +18,45 @@ public Accounts(HttpClientProvider httpClientProvider, ILogger<Accounts> logger)
         }
 
         [Function("D365-CRM-Accounts")]
-        public async Task<IActionResult> Run([HttpTrigger(AuthorizationLevel.Function, "get")] HttpRequest req)
+        public async Task<IActionResult> Run([HttpTrigger(AuthorizationLevel.Function, "get", Route = "crm/accounts/{id?}")] HttpRequest req, Guid? id)
         {
             _logger.LogInformation("Dynamics365-CRM-Accounts is requested.");
 
-            var client = _httpClientProvider.Create();
-            var accountsJson = await client.GetStringAsync("accounts");
-            var accounts = JsonValue.Parse(accountsJson);
+            try
+            {
+                var client = _httpClientProvider.Create();
 
-            return new OkObjectResult(accounts?["value"]);
+                if (!id.HasValue)
+                {
+                    var accountsJson = await client.GetStringAsync("accounts?$select=accountid,name");
+                    var accounts = JsonValue.Parse(accountsJson);
+                    return new OkObjectResult(accounts?["value"]);
+                }
+
+                var accountResponse = await client.GetAsync($"accounts({id})");
+                if (!accountResponse.IsSuccessStatusCode)
+                {
+                    if (accountResponse.StatusCode == System.Net.HttpStatusCode.NotFound)
+                    {
+                        return new NotFoundResult();
+                    }
+
+                    // throws Exception
+                    accountResponse.EnsureSuccessStatusCode();
+                }
+
+                var accountJson = await accountResponse.Content.ReadAsStringAsync();
+                return new ContentResult()
+                {
+                    Content = accountJson,
+                    ContentType = "application/json"
+                };
+            }
+            catch (HttpRequestException ex)
+            {
+                _logger.LogError(ex, "An error has occured while processing Dynamics365-CRM-Accounts request.");
+                return new StatusCodeResult(ex.StatusCode.HasValue ? (int)ex.StatusCode.Value : StatusCodes.Status500InternalServerError);
+            }
         }
     }
 }
diff --git a/FunctionApp/Dynamics365/CRM/Authorize.cs b/FunctionApp/Dynamics365/CRM/Authorize.cs
index 53c101a..b959e72 100644
--- a/FunctionApp/Dynamics365/CRM/Authorize.cs
+++ b/FunctionApp/Dynamics365/CRM/Authorize.cs
@@ -26,7 +26,7 @@ public Authorize(IOptions<AppSettings> settings, ILogger<Authorize> logger)
         }
 
         [Function("D365-CRM-Authorize")]
-        public async Task<IActionResult> Run([HttpTrigger(AuthorizationLevel.Function, "get", "post")] HttpRequest req)
+        public async Task<IActionResult> Run([HttpTrigger(AuthorizationLevel.Function, "get", "post", Route = "crm/authorize")] HttpRequest req)
         {
             var scopes = new string[] { $"https://admin.services.crm.dynamics.com/user_impersonation", "offline_access" };
 
diff --git a/FunctionApp/Dynamics365/CRM/Contacts.cs b/FunctionApp/Dynamics365/CRM/Contacts.cs
index 132a995..f0d5ac5 100644
--- a/FunctionApp/Dynamics365/CRM/Contacts.cs
+++ b/FunctionApp/Dynamics365/CRM/Contacts.cs
@@ -1,3 +1,4 @@
+using Grpc.Core;
 using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.Azure.Functions.Worker;
@@ -18,15 +19,45 @@ public Contacts(HttpClientProvider httpClientProvider, ILogger<Contacts> logger)
         }
 
         [Function("D365-CRM-Contacts")]
-        public async Task<IActionResult> Run([HttpTrigger(AuthorizationLevel.Function, "get")] HttpRequest req)
+        public async Task<IActionResult> Run([HttpTrigger(AuthorizationLevel.Function, "get", Route = "crm/contacts/{id?}")] HttpRequest req, Guid? id)
         {
             _logger.LogInformation("Dynamics365-CRM-Contacts is requested.");
 
-            var client = _httpClientProvider.Create();
-            var contactsJson = await client.GetStringAsync("contacts");
-            var contacts = JsonValue.Parse(contactsJson);
+            try
+            {
+                var client = _httpClientProvider.Create();
 
-            return new OkObjectResult(contacts?["value"]);
+                if (!id.HasValue)
+                {
+                    var contactsJson = await client.GetStringAsync("contacts?$select=contactid,fullname");
+                    var contacts = JsonValue.Parse(contactsJson);
+                    return new OkObjectResult(contacts?["value"]);
+                }
+
+                var contactResponse = await client.GetAsync($"contacts({id})");
+                if (!contactResponse.IsSuccessStatusCode)
+                {
+                    if (contactResponse.StatusCode == System.Net.HttpStatusCode.NotFound)
+                    {
+                        return new NotFoundResult();
+                    }
+
+                    // throws Exception
+                    contactResponse.EnsureSuccessStatusCode();
+                }
+
+                var contactJson = await contactResponse.Content.ReadAsStringAsync();
+                return new ContentResult()
+                {
+                    Content = contactJson,
+                    ContentType = "application/json"
+                };
+            }
+            catch (HttpRequestException ex)
+            {
+                _logger.LogError(ex, "An error has occured while processing Dynamics365-CRM-Contacts request.");
+                return new StatusCodeResult(ex.StatusCode.HasValue ? (int)ex.StatusCode.Value : StatusCodes.Status500InternalServerError);
+            }
         }
     }
 }