I have a Zapier automation that processes file uploads from users through a web form and stores them in an Amazon S3 bucket. The upload process works perfectly, but I need to get the URL of the uploaded file so I can use it in the next step of my workflow.
My current Zapier workflow looks like this:
- Trigger - New form submission with file attachment
- Action - Save the uploaded file to my S3 bucket
- Action - Send the S3 file URL to my webhook endpoint
The problem is with step 3. I can’t figure out how to grab the S3 object URL that gets created after the file upload completes. Does anyone know if Zapier provides access to this URL in the output data from the S3 upload action? I’ve looked through all the available fields but can’t seem to find the file URL anywhere.
Any help would be appreciated!
I ran into this exact issue last month. The S3 URL doesn’t always appear in the obvious output fields from Zapier’s S3 action. What worked for me was manually constructing the URL using the bucket name and file path that Zapier does provide in the output data. The format is typically https://your-bucket-name.s3.amazonaws.com/path/to/your/file. You can find the bucket name and file key in the S3 action output, then use a formatter step in Zapier to combine them into the full URL. This approach gave me consistent results compared to trying to locate a pre-built URL field. Make sure your bucket permissions are configured correctly for public access if you need the URLs to be directly accessible.
check the “Data Out” section after your s3 upload step runs - zapier usually puts the file url there but sometimes its buried under a weird field name like “public_url” or just “link”. if you still cant find it, try adding a webhook step that dumps all the s3 output data so you can see everything thats available.
After uploading a file to S3 via Zapier, you should be able to find the URL in the output data, though it may not be straightforwardly labeled. Look for terms like “File URL”, “Object URL”, or “Public URL” in the output. If it’s not obvious, test your Zap and review the detailed output; sometimes, the URL is listed under generic field names like “url” or “location”. Ensure that your S3 bucket settings allow public read access; otherwise, the URL will remain inaccessible. Also, confirm whether your integration is set up to provide public URLs instead of signed URLs, as this can influence what is passed along to any subsequent steps.