From ad2b57bf21b98c09a63533060be0f5385140df59 Mon Sep 17 00:00:00 2001
From: Felipe Gasper <felipe.gasper@mongodb.com>
Date: Fri, 24 Apr 2026 16:28:02 -0400
Subject: [PATCH] implement

---
 mongo/client_bulk_write.go | 24 +++++-----
 mongo/errors.go            | 89 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 103 insertions(+), 10 deletions(-)

diff --git a/mongo/client_bulk_write.go b/mongo/client_bulk_write.go
index bf3a1e530..1785195d0 100644
--- a/mongo/client_bulk_write.go
+++ b/mongo/client_bulk_write.go
@@ -102,6 +102,7 @@ func (bw *clientBulkWrite) execute(ctx context.Context) error {
 				Message: ce.Message,
 				Raw:     ce.Raw,
 			},
+			Labels: ce.Labels,
 		}
 	}
 	if len(batches.writeConcernErrors) > 0 || len(batches.writeErrors) > 0 {
@@ -435,16 +436,17 @@ func (mb *modelBatches) processResponse(ctx context.Context, resp bsoncore.Docum
 		return nil
 	}
 	var res struct {
-		Ok        bool
-		Cursor    bsoncore.Document
-		NDeleted  int32
-		NInserted int32
-		NMatched  int32
-		NModified int32
-		NUpserted int32
-		NErrors   int32
-		Code      int32
-		Errmsg    string
+		Ok          bool
+		Cursor      bsoncore.Document
+		NDeleted    int32
+		NInserted   int32
+		NMatched    int32
+		NModified   int32
+		NUpserted   int32
+		NErrors     int32
+		Code        int32
+		Errmsg      string
+		ErrorLabels []string
 	}
 	err := bson.Unmarshal(resp, &res)
 	if err != nil {
@@ -460,6 +462,7 @@ func (mb *modelBatches) processResponse(ctx context.Context, resp bsoncore.Docum
 			WriteConcernErrors: mb.writeConcernErrors,
 			WriteErrors:        mb.writeErrors,
 			PartialResult:      mb.result,
+			Labels:             res.ErrorLabels,
 		}
 	}
 
@@ -520,6 +523,7 @@ func (mb *modelBatches) processResponse(ctx context.Context, resp bsoncore.Docum
 			WriteConcernErrors: mb.writeConcernErrors,
 			WriteErrors:        mb.writeErrors,
 			PartialResult:      mb.result,
+			Labels:             writeCmdErr.Labels,
 		}
 	}
 	return nil
diff --git a/mongo/errors.go b/mongo/errors.go
index 28c298c5f..bd57141a1 100644
--- a/mongo/errors.go
+++ b/mongo/errors.go
@@ -378,6 +378,7 @@ var (
 	_ ServerError = WriteError{}
 	_ ServerError = WriteException{}
 	_ ServerError = BulkWriteException{}
+	_ ServerError = ClientBulkWriteException{}
 )
 
 var _ error = ClientBulkWriteException{}
@@ -797,6 +798,94 @@ type ClientBulkWriteException struct {
 	// The results of any successful operations that were performed before the error
 	// was encountered.
 	PartialResult *ClientBulkWriteResult
+
+	Labels []string
+}
+
+func (bwe ClientBulkWriteException) serverError() {}
+
+// ErrorCodes returns the list of server error codes contained in the error.
+func (bwe ClientBulkWriteException) ErrorCodes() []int {
+	errorCodes := []int{}
+
+	bwe.iterateErrors(func(code int, _ string) bool {
+		errorCodes = append(errorCodes, code)
+		return false
+	})
+
+	return errorCodes
+}
+
+// HasErrorCode returns true if the error has the specified code.
+func (bwe ClientBulkWriteException) HasErrorCode(code int) bool {
+	for _, errorCode := range bwe.ErrorCodes() {
+		if errorCode == code {
+			return true
+		}
+	}
+
+	return false
+}
+
+// HasErrorCodeWithMessage returns true if any of the contained errors have the specified code and message.
+func (bwe ClientBulkWriteException) HasErrorCodeWithMessage(code int, message string) bool {
+	has := false
+	bwe.iterateErrors(func(errCode int, errMsg string) bool {
+		if errCode == code && strings.Contains(errMsg, message) {
+			has = true
+			return true
+		}
+
+		return false
+	})
+
+	return has
+}
+
+// HasErrorMessage returns true if the error contains the specified message.
+func (bwe ClientBulkWriteException) HasErrorMessage(message string) bool {
+	has := false
+	bwe.iterateErrors(func(_ int, errMsg string) bool {
+		if strings.Contains(errMsg, message) {
+			has = true
+			return true
+		}
+
+		return false
+	})
+
+	return has
+}
+
+// HasErrorLabel returns true if the error contains the specified label.
+func (bwe ClientBulkWriteException) HasErrorLabel(label string) bool {
+	for _, l := range bwe.Labels {
+		if l == label {
+			return true
+		}
+	}
+
+	return false
+}
+
+func (bwe ClientBulkWriteException) iterateErrors(f func(int, string) bool) {
+	if bwe.WriteError != nil {
+		if f(bwe.WriteError.Code, bwe.WriteError.Message) {
+			return
+		}
+	}
+
+	for _, err := range bwe.WriteConcernErrors {
+		if f(err.Code, err.Message) {
+			return
+		}
+	}
+
+	for _, writeError := range bwe.WriteErrors {
+		if f(writeError.Code, writeError.Message) {
+			return
+		}
+	}
 }
 
 // Error implements the error interface.