mongoc_bulk_operation_replace_one man page

void
mongoc_bulk_operation_replace_one (mongoc_bulk_operation_t *bulk,
                                   const bson_t *selector,
                                   const bson_t *document,
                                   bool upsert);

Replace a single document as part of a bulk operation. This only queues the operation. To execute it, call mongoc_bulk_operation_execute().

WARNING:

document may not contain fields with keys containing . or $.

mongoc_bulk_operation_replace_one_with_opts()

Errors are propagated via mongoc_bulk_operation_execute().

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