fix: issue search in

src/GitLabApiClient/Internal/Queries/IssuesQueryBuilder.cs

@@ -44,6 +44,9 @@ protected override void BuildCore(Query query, IssuesQueryOptions options)
             if (!options.Filter.IsNullOrEmpty())
                 query.Add("search", options.Filter);
 
+            if (options.In != SearchIn.TitleAndDescription)
+                query.Add("in", GetSearchInQueryValue(options.In));
+
             if (options.IsConfidential)
                 query.Add("confidential", true);
 
@@ -87,5 +90,20 @@ private static string GetIssuesOrderQueryValue(IssuesOrder order)
                     throw new NotSupportedException($"Order {order} is not supported");
             }
         }
+
+        private static string GetSearchInQueryValue(SearchIn searchIn)
+        {
+            switch (searchIn)
+            {
+                case SearchIn.Title:
+                    return "title";
+                case SearchIn.Description:
+                    return "description";
+                case SearchIn.TitleAndDescription:
+                    return "title,description";
+                default:
+                    throw new NotSupportedException($"SearchIn {searchIn} is not supported");
+            }
+        }
     }
 }

src/GitLabApiClient/Models/Issues/Requests/IssuesQueryOptions.cs

@@ -18,7 +18,7 @@ internal IssuesQueryOptions() { }
         public IssueState State { get; set; }
 
         /// <summary>
-        /// List of label names, issues must have all labels to be returned. 
+        /// List of label names, issues must have all labels to be returned.
         /// No+Label lists all issues with no labels.
         /// </summary>
         public IList<string> Labels { get; set; } = new List<string>();
@@ -75,6 +75,11 @@ internal IssuesQueryOptions() { }
         /// </summary>
         public string Filter { get; set; }
 
+        /// <summary>
+        /// Modify the scope of the search attribute. Title, Description, or TitleAndDescription. Default is TitleAndDescription
+        /// </summary>
+        public SearchIn In { get; set; }
+
         /// <summary>
         /// Return issues created after the given time (inclusive)
         /// </summary>

src/GitLabApiClient/Models/Issues/Requests/SearchIn.cs

@@ -0,0 +1,9 @@
+namespace GitLabApiClient.Models.Issues.Requests
+{
+    public enum SearchIn
+    {
+        TitleAndDescription,
+        Title,
+        Description,
+    }
+}

test/GitLabApiClient.Test/Internal/Queries/IssuesQueryBuilderTest.cs

@@ -30,6 +30,7 @@ public void NonDefaultQueryBuilt()
                     Order = IssuesOrder.UpdatedAt,
                     SortOrder = SortOrder.Ascending,
                     Filter = "filter",
+                    In = SearchIn.Description,
                     CreatedAfter = new DateTime(1991, 11, 11, 1, 1, 1),
                     CreatedBefore = new DateTime(1991, 12, 12, 2, 2, 2),
                     UpdatedAfter = new DateTime(1991, 4, 4, 4, 4, 4),
@@ -50,6 +51,7 @@ public void NonDefaultQueryBuilt()
                               "order_by=updated_at&" +
                               "sort=asc&" +
                               "search=filter&" +
+                              "in=description&" +
                               "confidential=true&" +
                               "created_before=1991-12-12T02%3a02%3a02.0000000&" +
                               "created_after=1991-11-11T01%3a01%3a01.0000000&" +
@@ -76,6 +78,7 @@ public void NonDefaultQueryBuiltWithUserNames()
                     Order = IssuesOrder.UpdatedAt,
                     SortOrder = SortOrder.Ascending,
                     Filter = "filter",
+                    In = SearchIn.Title,
                     CreatedAfter = new DateTime(1991, 11, 11, 1, 1, 1),
                     CreatedBefore = new DateTime(1991, 12, 12, 2, 2, 2),
                     UpdatedAfter = new DateTime(1991, 4, 4, 4, 4, 4),
@@ -96,6 +99,7 @@ public void NonDefaultQueryBuiltWithUserNames()
                               "order_by=updated_at&" +
                               "sort=asc&" +
                               "search=filter&" +
+                              "in=title&" +
                               "confidential=true&" +
                               "created_before=1991-12-12T02%3a02%3a02.0000000&" +
                               "created_after=1991-11-11T01%3a01%3a01.0000000&" +

test/GitLabApiClient.Test/IssuesClientTest.cs

@@ -190,5 +190,49 @@ public async Task CreateIssueWithTasks()
                 i.TaskCompletionStatus.Completed == 1 &&
                 i.TimeStats != null);
         }
+
+        [Fact]
+        public async Task CreatedIssueCanBeRetrievedByTitleOrDescription()
+        {
+            //arrange
+            string title = Guid.NewGuid().ToString();
+            string description = "Description";
+            var issue = await _sut.CreateAsync(TestProjectTextId, new CreateIssueRequest(title)
+            {
+                Description = description
+            });
+
+            //act
+            var issueSearchedInTitle = (await _sut.GetAllAsync(TestProjectTextId, options: o =>
+                {
+                    o.In = SearchIn.Title;
+                    o.Filter = title;
+                }))
+                .FirstOrDefault();
+
+            var issueSearchedInDescription = (await _sut.GetAllAsync(TestProjectTextId, options: o =>
+                {
+                    o.In = SearchIn.Description;
+                    o.Filter = description;
+                }))
+                .FirstOrDefault();
+
+            var issueSearchedInTitleAndDescription = (await _sut.GetAllAsync(TestProjectTextId, options: o =>
+                {
+                    o.In = SearchIn.TitleAndDescription;
+                    o.Filter = description;
+                }))
+                .FirstOrDefault();
+
+            //assert
+            issue.Should().Match<Issue>(i =>
+                i.ProjectId == TestProjectTextId &&
+                i.Title == title &&
+                i.Description == description);
+
+            issueSearchedInTitle.Should().BeEquivalentTo(issue, o => o.Excluding(s => s.UpdatedAt));
+            issueSearchedInDescription.Should().BeEquivalentTo(issue, o => o.Excluding(s => s.UpdatedAt));
+            issueSearchedInTitleAndDescription.Should().BeEquivalentTo(issue, o => o.Excluding(s => s.UpdatedAt));
+        }
     }
 }