Create group with predetermined id

NBXplorer.Client/ExplorerClient.cs

@@ -549,7 +549,11 @@ public GenerateWalletResponse GenerateWallet(GenerateWalletRequest request = nul
 
 		public Task<GroupInformation> CreateGroupAsync(CancellationToken cancellationToken = default)
 		{
-			return SendAsync<GroupInformation>(HttpMethod.Post, null, $"v1/groups", cancellationToken);
+			return CreateGroupAsync(null, cancellationToken);
+		}
+		public Task<GroupInformation> CreateGroupAsync(CreateGroupRequest request, CancellationToken cancellationToken = default)
+		{
+			return SendAsync<GroupInformation>(HttpMethod.Post, request, $"v1/groups", cancellationToken);
 		}
 		public Task<GroupInformation> GetGroupAsync(string groupId, CancellationToken cancellationToken = default)
 		{

NBXplorer.Client/Models/GroupInformation.cs

@@ -1,10 +1,12 @@
 using Newtonsoft.Json;
-using System;
-using System.Collections.Generic;
-using System.Text;
 
 namespace NBXplorer.Models
 {
+
+	public class CreateGroupRequest
+	{
+		public string GroupId { get; set; }
+	}
 	public class GroupChild
 	{
 		[JsonProperty(DefaultValueHandling = DefaultValueHandling.Ignore)]

NBXplorer.Tests/UnitTest1.Groups.cs

@@ -15,7 +15,11 @@ public partial class UnitTest1
 		public async Task CanCRUDGroups()
 		{
 			using var tester = ServerTester.Create();
+			var guid = Guid.NewGuid().ToString();
+			var g222 = await tester.Client.CreateGroupAsync(new CreateGroupRequest() { GroupId = guid });
+			Assert.Equal(g222.GroupId, guid);
 			var g1 = await tester.Client.CreateGroupAsync();
+
 			void AssertG1Empty()
 			{
 				Assert.NotNull(g1.GroupId);

NBXplorer/Controllers/GroupsController.cs

@@ -30,9 +30,9 @@ public GroupsController(
 		public NBXplorerNetworkProvider NetworkProvider { get; }
 
 		[HttpPost(CommonRoutes.BaseGroupEndpoint)]
-		public async Task<IActionResult> CreateGroup()
+		public async Task<IActionResult> CreateGroup([FromBody] CreateGroupRequest request)
 		{
-			var group = GroupTrackedSource.Generate();
+			var group = string.IsNullOrEmpty(request?.GroupId)? GroupTrackedSource.Generate(): new GroupTrackedSource(request.GroupId);
 			await using var conn = await ConnectionFactory.CreateConnection();
 			await conn.ExecuteAsync(Repository.WalletInsertQuery, Repository.GetWalletKey(group));
 			return base.Ok(ToGroupInfo(group));

docs/API.md

@@ -1284,7 +1284,12 @@ Create a new empty group.
 
 `HTTP POST v1/groups`
 
-No body required
+Optional request body:
+```json
+{
+  "groupId": "yourGroupId"
+}
+```
 
 Response