While the same basic features that have been around from the very beginning are all still there-storing, organizing, and sharing files-there are some really cool new features in Dropbox’s API. These features can be used ad hoc, they can be managed by employees, or they can be tightly integrated into business apps. Now, as you well know, Dropbox has a set of powerful features that provides companies with the ability to share and manage collaborative content in a central location. For all intents and purposes of this article, it’ll come in handy, as you can quickly try the integration we’re going to be talking about yourself. You can take it for a spin for free, and keep spinnin’ it forever for your personal projects. Really quickly, before we dive in, OutSystems is a high-performance low-code platform intended for developing and delivering enterprise web and mobile applications with a single codebase running in the cloud, on-premises, or in hybrid environments. That's it.This article will provide you with a brief overview of the new Dropbox API 2.0 capabilities and show you how you can make use of them with OutSystems. You can keep refresh token, last received access token (as a cache), and calculated time (moment) of current access token expiration (used for check, in followup calls, whether the access token expires). In this function implementation you can check whether available access token is going to expire and if so, refresh it (as denoted in the post linked to). This token should be represented as rather variable and definitely not as a literal!!! Good idea is to change your code in a way, every place (no limited to your example) where token is used, the literal to be replaced with a function (you can name it to something like 'getToken' for instance). You have not to assume 'ACCESS TOKEN' has a fixed value anymore (as seems you are doing).

The code you posted as example should not be changed a lot (it can left almost the same).

The most important is HOW it's gonna work (as idea). I believe you haven't problem to convert it. It's not a PHP code, but a command line curl execution.

Dropbox api upload file