# bson_json_opts_new()

## Synopsis

    bson_json_opts_t *
    bson_json_opts_new (bson_json_mode_t mode, int32_t max_len);

## Parameters

- `mode`: A bson_json_mode_t.

- `max_len`: An int32_t.

## Description

The bson_json_opts_new() function shall create a new bson_json_opts_t using the mode and length supplied. The `mode` member is a bson_json_mode_t defining the encoding mode.

The `max_len` member holds a maximum length for the resulting JSON string. Encoding will stop once the serialised string has reached this length. To encode the full BSON document, `BSON_MAX_LEN_UNLIMITED` can be used.

## Returns

A newly allocated bson_json_opts_t.