# bson_append_dbpointer()

## Synopsis

    bool
    bson_append_dbpointer (bson_t           *bson,
                           const char       *key,
                           int               key_length,
                           const char       *collection,
                           const bson_oid_t *oid);

## Parameters

bson | A bson_t.
key | An ASCII C string containing the name of the field.
key_length | The length of key in bytes, or -1 to determine the length with strlen().
collection | The target collection name.
oid | The target document identifer.

## Description

The dbpointer field type is DEPRECATED and should only be used when interacting with legacy systems.

## Returns

true if the operation was applied successfully, otherwise false and bson should be discarded.