NAME

       bson_iter_init_from_data - bson_iter_init_from_data()

SYNOPSIS

          bool
          bson_iter_init_from_data (bson_iter_t *iter, const uint8_t *data, size_t length);

PARAMETERS

       • iter: A bson_iter_t.

       • data: A buffer to initialize with.

       • length: The length of data in bytes.

DESCRIPTION

       The  bson_iter_init_from_data()  function shall initialize iter to iterate upon the buffer
       data, which must contain a BSON document. Upon initialization, iter is placed  before  the
       first    element.    Callers    must    call    bson_iter_next(),   bson_iter_find(),   or
       bson_iter_find_case() to advance to an element.

RETURNS

       Returns true if the iter was successfully initialized.

EXAMPLE

          static void
          print_doc_id (const uint8_t *data, size_t length)
          {
             bson_iter_t iter;
             bson_oid_t oid;
             char oidstr[25];

             if (bson_iter_init_from_data (&iter, data, length) && bson_iter_find (&iter, "_id") &&
                 BSON_ITER_HOLDS_OID (&iter)) {
                bson_iter_oid (&iter, &oid);
                bson_oid_to_string (&oid, oidstr);
                printf ("%s\n", oidstr);
             } else {
                printf ("Document is missing _id.\n");
             }
          }

AUTHOR

       MongoDB, Inc

COPYRIGHT

       2018, MongoDB, Inc