Feature: Implement delete issue link api (#341)

issue.go

@@ -718,6 +718,29 @@ func (s *IssueService) DeleteAttachment(attachmentID string) (*Response, error)
 	return s.DeleteAttachmentWithContext(context.Background(), attachmentID)
 }
 
+// DeleteLinkWithContext deletes a link of a given linkID
+func (s *IssueService) DeleteLinkWithContext(ctx context.Context, linkID string) (*Response, error) {
+	apiEndpoint := fmt.Sprintf("rest/api/2/issueLink/%s", linkID)
+
+	req, err := s.client.NewRequestWithContext(ctx, "DELETE", apiEndpoint, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	resp, err := s.client.Do(req, nil)
+	if err != nil {
+		jerr := NewJiraError(resp, err)
+		return resp, jerr
+	}
+
+	return resp, nil
+}
+
+// DeleteLink wraps DeleteLinkWithContext using the background context.
+func (s *IssueService) DeleteLink(linkID string) (*Response, error) {
+	return s.DeleteLinkWithContext(context.Background(), linkID)
+}
+
 // GetWorklogsWithContext gets all the worklogs for an issue.
 // This method is especially important if you need to read all the worklogs, not just the first page.
 //

issue_test.go

@@ -589,6 +589,33 @@ func TestIssueService_DeleteAttachment(t *testing.T) {
 	}
 }
 
+func TestIssueService_DeleteLink(t *testing.T) {
+	setup()
+	defer teardown()
+	testMux.HandleFunc("/rest/api/2/issueLink/10054", func(w http.ResponseWriter, r *http.Request) {
+		testMethod(t, r, "DELETE")
+		testRequestURL(t, r, "/rest/api/2/issueLink/10054")
+
+		w.WriteHeader(http.StatusNoContent)
+		fmt.Fprint(w, `{}`)
+	})
+
+	resp, err := testClient.Issue.DeleteLink("10054")
+	if resp.StatusCode != 204 {
+		t.Error("Expected link not deleted.")
+		if resp.StatusCode == 403 {
+			t.Error("User not permitted to delete link")
+		}
+		if resp.StatusCode == 404 {
+			t.Error("Link not found")
+		}
+	}
+
+	if err != nil {
+		t.Errorf("Error given: %s", err)
+	}
+}
+
 func TestIssueService_Search(t *testing.T) {
 	setup()
 	defer teardown()