Deprecated since version 1.9.0: Use mongoc_collection_insert_one() or mongoc_collection_replace_one()

       MongoDB, Inc

       2009-present, MongoDB, Inc.

1.30.4                                            Jun 08, 2025                         MONGOC_COLLECTION_SAVE(3)

       This function shall save a document into collection. If the document has an _id field it will be updated.
       Otherwise it will be inserted.

       Errors are propagated via the error parameter.

       • collection: A mongoc_collection_t.

       • document: A bson_t containing the document.

       • write_concern: A mongoc_write_concern_t or NULL for default write concern.

       • error: An optional location for a bson_error_t or NULL.

       Returns true if successful. Returns false and sets error if there are invalid arguments or  a  server  or
       network error.

       A write concern timeout or write concern error is considered a failure.

          bool
          mongoc_collection_save (mongoc_collection_t *collection,
                                  const bson_t *document,
                                  const mongoc_write_concern_t *write_concern,
                                  bson_error_t *error);

          Deprecated  since version 1.9.0: Use mongoc_collection_insert_one() or mongoc_collection_replace_one()
          with "upsert" instead.