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.TH "MONGOC_CLIENT_GET_DATABASE_NAMES_WITH_OPTS" "3" "Jun 04, 2021" "1.17.6" "libmongoc"
.SH NAME
mongoc_client_get_database_names_with_opts \- mongoc_client_get_database_names_with_opts()
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.SH SYNOPSIS
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
char **
mongoc_client_get_database_names_with_opts (mongoc_client_t *client,
                                            const bson_t *opts,
                                            bson_error_t *error);
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
This function queries the MongoDB server for a list of known databases.
.SH PARAMETERS
.INDENT 0.0
.IP \(bu 2
\fBclient\fP: A \fBmongoc_client_t\fP\&.
.IP \(bu 2
\fBopts\fP: A \fI\%bson_t\fP containing additional options.
.IP \(bu 2
\fBerror\fP: An optional location for a \fBbson_error_t\fP or \fBNULL\fP\&.
.UNINDENT
.sp
\fBopts\fP may be NULL or a BSON document with additional command options:
.INDENT 0.0
.IP \(bu 2
\fBsessionId\fP: First, construct a \fBmongoc_client_session_t\fP with \fBmongoc_client_start_session\fP\&. You can begin a transaction with \fBmongoc_client_session_start_transaction\fP, optionally with a \fBmongoc_transaction_opt_t\fP that overrides the options inherited from \fBclient\fP, and use \fBmongoc_client_session_append\fP to add the session to \fBopts\fP\&. See the example code for \fBmongoc_client_session_t\fP\&.
.IP \(bu 2
\fBserverId\fP: To target a specific server, include an int32 "serverId" field. Obtain the id by calling \fBmongoc_client_select_server\fP, then \fBmongoc_server_description_id\fP on its return value.
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.sp
This function is considered a retryable read operation.
Upon a transient error (a network error, errors due to replica set failover, etc.) the operation is safely retried once.
If \fBretryreads\fP is false in the URI (see \fBmongoc_uri_t\fP) the retry behavior does not apply.
.SH ERRORS
.sp
Errors are propagated via the \fBerror\fP parameter.
.SH RETURNS
.sp
A \fBNULL\fP terminated vector of \fBNULL\-byte\fP terminated strings. The result should be freed with \fI\%bson_strfreev()\fP\&.
.sp
\fBNULL\fP is returned upon failure and \fBerror\fP is set.
.SH EXAMPLES
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
{
   bson_error_t error;
   char **strv;
   unsigned i;

   if ((strv = mongoc_client_get_database_names_with_opts (client, NULL, &error))) {
      for (i = 0; strv[i]; i++)
         printf ("%s\en", strv[i]);
      bson_strfreev (strv);
   } else {
      fprintf (stderr, "Command failed: %s\en", error.message);
   }
}
.ft P
.fi
.UNINDENT
.UNINDENT
.SH AUTHOR
MongoDB, Inc
.SH COPYRIGHT
2017-present, MongoDB, Inc
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