Create upload session for existing file

//native

type Box = {

  token: string;

};

/**

 * Create upload session for existing file

 * Creates an upload session for an existing file.

 */

export async function main(

  auth: Box,

  file_id: string,

  body: { file_size: number; file_name?: string },

) {

  const url = new URL(

    `https://api.box.com/2.0/files/${file_id}/upload_sessions`,

  );

  const response = await fetch(url, {

    method: "POST",

    headers: {

      "Content-Type": "application/json",

      Authorization: "Bearer " + auth.token,

    },

    body: JSON.stringify(body),

  });

  if (!response.ok) {

    const text = await response.text();

    throw new Error(`${response.status} ${text}`);

  }

  return await response.json();

}