Hi,

Does this thread help in your situation? It appears that if you have the necessary permissions to the S3 buckets, then you could leverage the following forge components to upload files.

https://www.outsystems.com/forge/component-discussions/3551/Amazon+S3+Connector

https://www.outsystems.com/forge/component/3546/amazon-s3/

I have not used the components, so I am not quite sure if the file sizes you are dealing will pose a problem or not.

Regards,

AJ

Thank you for the response but I am not connecting to S3 directly so the forge component does not help. I am simply trying to send a file to a restful API from the client browser instead of a server action.

You should be able to do it using client side javascript. maybe something like the below

jquery - File upload using ajax and rest web service - Stack Overflow 

Here is another example doing an upload to a salesforce api.

JavaScript snippet for uploading fille to Salesforce as ContentVersion and sharing to record as ContentDocumentLink via jsforce and jquery. · GitHub 

I tried to send the file to the rest API.

 I exposed an API from a module with binary input and call this API and sent the file binary. I am able to get it on the API side.

Please check the attached OML. 

please correct the API URL according to your env.