mongoc_bulk_operation_set_hint() — MongoDB C Driver 1.6.3

- MongoDB C Driver 1.6.3 »
- API Reference »
- mongoc_bulk_operation_t

# mongoc_bulk_operation_set_hint()

## Synopsis

    void
    mongoc_bulk_operation_set_hint (const mongoc_bulk_operation_t *bulk,
                                    uint32_t server_id);

## Parameters

- `bulk`: A mongoc_bulk_operation_t.
- `server_id`: An opaque id identifying the server to use.

## Description

Specifies which server to use for the operation. This function has an effect only if called before mongoc_bulk_operation_execute().

(The function name includes the old term "hint" for the sake of backward compatibility, but we now call this number a "server id".)

Use `mongoc_bulk_operation_set_hint` only for building a language driver that wraps the C Driver. When writing applications in C, leave the server id unset and allow the driver to choose a suitable server for the bulk operation.

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