Create Architecture Skeleton

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Create Architecture Skeleton

Our first requirement is to copy general files and folders into each individual user's root folder on account creation. This problem has been solved within standard Linux distributions through a directory called /etc/skel, which we'll emulate with a Box specific solution here. When adding a new user in Linux, the files and folders within /etc/skel are copied to the new user's home directory.

When creating a JWT-based Box application, a Service Account is created within the Box Enterprise. A Service Account is similar in functionality to a co-admin within a Box Enterprise, and most useful to this use case, can own, copy, and collaborate other users on files and folders. More importantly, you don't have to use a Service Account strictly for developing custom applications for users, and instead, can use a Service Account in more of an automation capacity.

Box Custom Application Requirements

When creating your JWT-based custom Box application for this recipe, you'll need to enable the following scopes: Manage users, Manage groups, Perform Actions as Users, and Generate User Access Tokens.

See JWT Application Setup for more information on creating a JWT-based Box application and the scopes in a Box application.

We'll start by creating the etc and skel folders and granting ownership of the folders to the Service Account.

etc_skel.json

{
  "name": "etc",
  "parent": {
    "id": "0"
  },
  "children": [
    {
      "name": "skel",
      "children": []
    }
  ]
}

skel_sub_directories.json

[
  {
    "name": "Market Research",
    "parent": {
      "id": "44884797174"
    },
    "children": [
      {
        "name": "Statistics",
        "children": [
          {
            "name": "Computed",
            "children": []
          }
        ]
      }
    ]
  },
  {
    "name": "Sales Plays",
    "parent": {
      "id": "44884797174"
    },
    "children": [
      {
        "name": "Big Pharma",
        "children": []
      }
    ]
  }
]

The code here can optionally be reused to build any folder structure formatted as the JSON objects above demonstrate.

Node

"use strict";
const fs = require("fs");
const box = require("box-node-sdk");

class BoxFolderTreeCreator {
    constructor(boxClient, options) {
        options = options || {};
        if (options.boxClient) {
            throw new Error("Must include a boxClient field.");
        }

        options.boxFolderTreeName = options.boxFolderTreeName || "tree.json";

        this.boxClient = boxClient;
        this.boxFolderTree = JSON.parse(fs.readFileSync(options.boxFolderTreeName));
        this.createdBoxFolders = [];
    }

    async createFolderTree(branch = null, parentFolderId = "0") {
        this.createdBoxFolders = [];
        if (Array.isArray(this.boxFolderTree)) {
            let folderTasks = [];
            this.boxFolderTree.forEach(folder => {
                folderTasks.push(this._createFolder(folder, ""));
            });
            await Promise.all(folderTasks);
            return this.createdBoxFolders;
        } else if (typeof this.boxFolderTree === "object") {
            console.log("Is object");
            await this._createFolders(this.boxFolderTree, "");
            return this.createdBoxFolders;
        } else {
            throw new Error("Incorrectly formatted JSON folder tree.");
        }
    }

    async _createFolders(branch, parentFolderId = "0") {
        if (branch.parent != null && branch.parent.id != null) {
            parentFolderId = branch.parent.id;
        }
        let folder;
        try {
            folder = await this.boxClient.folders.create(parentFolderId, branch.name);
        } catch (e) {
            let existingFolderId = BoxFolderTreeCreator.handleFolderConflictError(e);
            folder = await this.boxClient.folders.get(existingFolderId);
        }
        this.createdBoxFolders.push(folder);
        if (branch.children.length <= 0) {
            console.log("No more folders to create...");
            return;
        } else {
            let createFolderTasks = [];
            branch.children.forEach(child => {
                console.log("Creating folder...");
                console.log(child.name);
                createFolderTasks.push(this._createFolders(child, folder.id));
            });
            return await Promise.all(createFolderTasks);
        }
    }

    static handleFolderConflictError(e) {
        if (e && e.response && e.response.body) {
            let errorBody = e.response.body;
            if (errorBody.status === 409) {
                if (
                    errorBody.context_info &&
                    errorBody.context_info.conflicts &&
                    errorBody.context_info.conflicts.length > 0
                ) {
                    let conflict = errorBody.context_info.conflicts[0];
                    if (conflict && conflict.id) {
                        return conflict.id;
                    }
                }
            }
        }
    }
}

let configFile = fs.readFileSync("config.json");
configFile = JSON.parse(configFile);

let session = box.getPreconfiguredInstance(configFile);
let serviceAccountClient = session.getAppAuthClient("enterprise");

let treeCreator = new BoxFolderTreeCreator(serviceAccountClient);

(async () => {
    let createdFolders = await treeCreator.createFolderTree();
    console.log(createdFolders);
})();

Java

package com.box;

import java.io.BufferedReader;
import java.io.IOException;
import java.nio.charset.Charset;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import com.box.sdk.BoxAPIException;
import com.box.sdk.BoxConfig;
import com.box.sdk.BoxDeveloperEditionAPIConnection;
import com.box.sdk.BoxFolder;
import com.eclipsesource.json.JsonObject;
import com.eclipsesource.json.JsonValue;

public class BoxFolderTreeCreator {
    private BoxDeveloperEditionAPIConnection _boxClient;
    private JsonValue _boxFolderTree;
    private ArrayList<BoxFolder.Info > _createdFolders;

    public BoxFolderTreeCreator(BoxDeveloperEditionAPIConnection
        boxClient) throws IOException {
        this(boxClient, "tree.json");
    }

    public BoxFolderTreeCreator(BoxDeveloperEditionAPIConnection boxClient,
        String folderTreeFileName)
    throws IOException {
        this._boxClient = boxClient;
        try (BufferedReader tree =
            Files.newBufferedReader(Paths.get(folderTreeFileName))) {
            this._boxFolderTree = JsonValue.readFrom(tree);
        }
        this._createdFolders = new ArrayList<>();
    }

    public ArrayList<BoxFolder.Info > createFolderTree() {
        if (this._boxFolderTree.isArray()) {
            for (JsonValue folder: this._boxFolderTree.asArray()) {
                System.out.println("Processing this folder: " + folder);
                _createFolders(folder.asObject(), null);
            }
            return this._createdFolders;
        } else {
            _createFolders(this._boxFolderTree.asObject(), null);
            return this._createdFolders;
        }
    }

    private void _createFolders(JsonObject branch, String parentFolderID) {
        if (parentFolderID == null && branch.get("parent") != null &&
            branch.get("parent").asObject().get("id") != null) {
            System.out.println("Looking for parent folder id...");
            System.out.println(branch.get("parent").asObject().get("id").asString());
            parentFolderID = branch.get("parent").asObject().get("id").asString();
        }
        System.out.println("Folder name:");
        System.out.println(branch.get("name"));
        System.out.println("Parent Folder ID:");
        System.out.println(parentFolderID);
        BoxFolder.Info createdFolder;
        try {
            BoxFolder parent = new BoxFolder(this._boxClient, parentFolderID);
            createdFolder = parent.createFolder(branch.get("name").asString());
        } catch (BoxAPIException e) {
            if (e.getResponseCode() == 409) {
                // Use the ID returned from the conflict error to continue
                String conflictId = getIdFromConflict(e.getResponse());
                createdFolder = new BoxFolder(this._boxClient, conflictId).getInfo();
            } else {
                throw e;
            }
        }

        this._createdFolders.add(createdFolder);

        if (!branch.get("children").asArray().isEmpty()) {
            for (JsonValue child: branch.get("children").asArray()) {
                _createFolders(child.asObject(), createdFolder.getID());
            }
        } else {
            return;
        }
    }

    private static String getIdFromConflict(String message) {
        String id = "";
        Pattern p = Pattern.compile("\"id\":\"[0-9]+\"");
        Pattern p2 = Pattern.compile("[0-9]+");
        Matcher m = p.matcher(message);
        if (m.find()) {
            String sub = m.group();
            Matcher m2 = p2.matcher(sub);
            if (m2.find()) {
                id = m2.group();
            }
        }
        return id;
    }

    public static void main(String[] args) throws Exception {
        Path configPath = Paths.get("config.json");
        try (BufferedReader reader =
            Files.newBufferedReader(configPath, Charset.forName("UTF-8"))) {
            BoxConfig boxConfig = BoxConfig.readFrom(reader);
            BoxDeveloperEditionAPIConnection serviceAccountClient = BoxDeveloperEditionAPIConnection
                .getAppEnterpriseConnection(boxConfig);

            BoxFolderTreeCreator treeBuilder = new
                BoxFolderTreeCreator(serviceAccountClient, "etc_skel.json");
            ArrayList<BoxFolder.Info > folders = treeBuilder.createFolderTree();
            for (BoxFolder.Info folder: folders) {
                System.out.println(folder.getID());
            }
        }
    }
}

.NET

using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading.Tasks;
using Box.V2;
using Box.V2.Config;
using Box.V2.Exceptions;
using Box.V2.JWTAuth;
using Box.V2.Models;
using Newtonsoft.Json.Linq;

namespace BoxPlayground {
    public class Program {
        static void Main(string[] args) {
            ExecuteMainAsync().Wait();
        }

        private static async Task ExecuteMainAsync() {
            using(FileStream fs = new FileStream("./config.json",
                FileMode.Open)) {
                var session = new BoxJWTAuth(BoxConfig.CreateFromJsonFile(fs));
                var client = session.AdminClient(session.AdminToken());
                var treeCreator = new BoxFolderTreeCreator(client, "etc_skel.json");
                var createdFolders = await treeCreator.CreateFolderTree();
                foreach(var folder in createdFolders) {
                    System.Console.WriteLine(folder.Name);
                    System.Console.WriteLine(folder.Id);
                }

            }
        }

        public class BoxFolderTreeCreator {
            public BoxClient BoxClient {
                get;
                set;
            }
            public JToken BoxFolderTree {
                get;
                set;
            }
            public List < BoxFolder > CreatedBoxFolders {
                get;
                set;
            }

            public BoxFolderTreeCreator(BoxClient boxClient,
                string boxFolderTreeFileName = "tree.json") {
                this.BoxClient = boxClient;
                this.BoxFolderTree = JToken.Parse(File.ReadAllText(boxFolderTreeFileName));
                this.CreatedBoxFolders = new List < BoxFolder > ();
            }
            public async Task < List < BoxFolder >>
                CreateFolderTree(dynamic branch = null,
                string parentFolderId = "0") {
                this.CreatedBoxFolders = new List < BoxFolder > ();

                if (this.BoxFolderTree is JArray) {
                    var folderTasks = new List < Task > ();
                    foreach(JObject folder in this.BoxFolderTree) {
                        folderTasks.Add(_createFolder(folder, String.Empty));
                    }
                    await Task.WhenAll(folderTasks);
                    return this.CreatedBoxFolders;
                }
                else if (this.BoxFolderTree is JObject) {
                    System.Console.WriteLine("Is object");
                    await _createFolder(this.BoxFolderTree as JObject, String.Empty);
                    return this.CreatedBoxFolders;
                }
                else {
                    throw new Exception("Incorrectly formatted JSON folder tree.");
                }

            }

            private async Task _createFolder(dynamic branch,
                string parentFolderId = "0") {

                if (branch.parent != null && branch.parent.id != null) {
                    parentFolderId = branch.parent.id;
                }

                BoxFolder createdFolder;
                try {
                    createdFolder = await this.BoxClient.FoldersManager.CreateAsync(
                        new BoxFolderRequest {
                            Parent = new BoxRequestEntity {
                                Id = parentFolderId
                            },
                            Name = branch.name
                    });
                }
                catch(BoxConflictException < BoxFolder > e) {
                    createdFolder = await this.BoxClient.FoldersManager.GetInformationAsync(e.ConflictingItems.FirstOrDefault().Id);
                }

                this.CreatedBoxFolders.Add(createdFolder);

                if (branch.children.Count <= 0) {
                    System.Console.WriteLine("No more folders to create...");
                    return;
                }
                else {
                    var createFolderTasks = new List < Task > ();
                    foreach(var child in branch.children) {
                        System.Console.WriteLine("Creating folder...");
                        System.Console.WriteLine(child.name);
                        createFolderTasks.Add(_createFolder(child as JObject,
                            createdFolder.Id));
                    }
                    await Task.WhenAll(createFolderTasks);
                }
            }
        }
    }
}

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