JWT with SDKs

The official Box SDKs have built-in support for JWT authentication.

This guide will take you through user authentication using JWT with the use of the Box SDKs. JWT authentication is designed for working directly with the Box API without requiring a user to redirect through Box to authorize your application.

Overview

To complete a JWT authorization the following steps need to be completed.

1. Read the configuration file
2. Initialize an SDK client

At the end of this flow, the application has a Box SDK client that can be used to make API calls on behalf of the application.

Prerequisites

Before we can get started, you will need to have completed the following steps.

• Create a Box Application within the developer console
• Create and download the private key configuration file for your application and save it as config.json
• Ensure your Box Application is approved for usage within your enterprise

1. Read JSON configuration

After creating a Box Application there should be a config.json file containing the application's private key and other details. The following is an example.

{
  "boxAppSettings": {
    "clientID": "abc...123",
    "clientSecret": "def...234",
    "appAuth": {
      "publicKeyID": "abcd1234",
      "privateKey": "-----BEGIN ENCRYPTED PRIVATE KEY-----\n....\n-----END ENCRYPTED PRIVATE KEY-----\n",
      "passphrase": "ghi...345"
    }
  },
  "enterpriseID": "1234567"
}

To use this object in the application it needs to be read from file.

var reader = new StreamReader("path/to/config.json");
var json = reader.ReadToEnd();
var config = BoxConfig.CreateFromJsonString(json);

Reader reader = new FileReader("path/to/config.json");
BoxConfig config = BoxConfig.readFrom(reader);

from boxsdk import JWTAuth

config = JWTAuth.from_settings_file('path/to/config.json')

var config = require("path/to/config.json");

2. Initialize SDK client

The next step is to configure the Box SDK with the configuration and then initialize the client to connect as the application.

var sdk = new BoxJWTAuth(config);
var token = sdk.AdminToken();
BoxClient client = sdk.AdminClient(token);

BoxDeveloperEditionAPIConnection api = BoxDeveloperEditionAPIConnection.getAppEnterpriseConnection(config);

client = Client(config)

var sdk = BoxSDK.getPreconfiguredInstance(config);
var client = sdk.getAppAuthClient("enterprise");