Getting files from subfolders of Dropbox folder using Google Apps Script

Question

This is a continuation of my previous question for which @Tanaike proposed a very good solution to get files from a specific folder. However, it needs modification if there are subfolders in a specific folder. Here is sample script:

function myFunction() {
  const accessToken = "###"; // Please set your access token.
  const path = "/SampleName";

  const url = "https://api.dropboxapi.com/2/files/list_folder";
  const res = UrlFetchApp.fetch(url, {
    method: "post",
    headers: { authorization: "Bearer " + accessToken },
    contentType: "application/json",
    payload: JSON.stringify({ path, limit: 2000, recursive: true })
  });
  const obj = JSON.parse(res.getContentText());
  console.log(obj);
}

The endpoint that will be used to get files from subfolder of a folder is:

https://api.dropboxapi.com/2/files/list_folder/continue

However, due to my basic skills, I need guidance to use this in the above script. Thank you in advance.

Answer 1

In your situation, how about the following modification?

Modified script:

function myFunction() {
  const accessToken = "###"; // Please set your access token.
  const path = "/SampleName";

  let url = "https://api.dropboxapi.com/2/files/list_folder";
  let has_more = false;
  const option = {
    method: "post",
    headers: { authorization: "Bearer " + accessToken },
    contentType: "application/json",
    payload: JSON.stringify({ path, limit: 2000, recursive: true })
  };
  let values = [];
  do {
    const res = UrlFetchApp.fetch(url, option);
    let obj = JSON.parse(res.getContentText());
    values = [...values, ...obj.entries];
    has_more = obj.has_more;
    if (has_more) {
      url = "https://api.dropboxapi.com/2/files/list_folder/continue";
      option.payload = JSON.stringify({ cursor: obj.cursor });
    }
  } while (has_more);

  console.log(values);
}

• When this script is run, when has_more is true, the list is retrieved from the next page using cursor.

Reference:

• list_folder/continue of Dropbox API