App Inventor, API Access and Authentication

How to upload a file into your Dropbox

Preparation: Create an App in Dropbox

This example uses version 2 of the Dropbox API. How to use the upload method see also the documentation.

First create an app in Dropbox. There are 2 different access types: access to the complete Dropbox of a user (access type = dropbox) or only to a specific folder (access type = sandbox). The demo uses the sandbox access type. You also might want to use the sandbox access type because of security reasons.

App Inventor Blocks

Screenshots

Notes

• I did not look into downloading files or getting a sharable link to an uploaded file or .... Feel free to play around and adjust the example to your needs! The Dropbox Documentation is here. You might want to demonstrate your solution in the App Inventor forum.
• Uploading an image may take a few seconds depending on the image size and your internet connection speed. You can reduce the image size using my Image extension before uploading.

Questions and Answers

Q1: How to delete a file on Dropbox?
A: See this solution. Thank you Andreu.

Download

Download Dropbox project (aia file) to test with your access token and your Dropbox
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