Guides for direct file URL handoffs
Pick the URL shape before wiring the workflow. These guides explain why share links fail, when hosted URLs help, and where expiry or deletion belongs.
- Reviewed by
- GetFileURL technical team
- Updated
- Access
- Does the destination fetch bytes without a session?
- Delivery
- Does the URL return correct headers?
- Lifecycle
- Does public access expire or get deleted?
What this page answers
Start with the direct file URL guide if another API is rejecting a share link, attachment URL, or Drive link.
- Reviewed by
- GetFileURL technical team
- Last updated
Read the guides that match the failure you are seeing.
Most file URL problems are access, header, redirect, expiry, or cleanup problems. The upload step is only one part of the handoff.
What Is a Direct File URL?
Learn what a direct file URL is, why APIs reject preview links, and how to create public CDN URLs with content type, expiry, and delete controls.
Presigned URL vs Hosted File URL
Compare S3 presigned URLs and hosted public file URLs for workflows that need upload, CDN delivery, expiry, deletion, and easier API handoffs.
Temporary URL vs Permanent URL | File URL Guide | GetFileURL
Compare temporary file URLs, permanent public URLs, and signed URLs for API workflows that need expiry windows, cleanup, and reliable downstream fetches.
What Is a Public CDN URL?
Learn what public CDN URLs are, when workflow files need them, and how to keep file delivery direct, cacheable, observable, and lifecycle-controlled.
Base64 vs Multipart Upload | Decode Base64 for File URLs | GetFileURL
Compare Base64 source handling and multipart file uploads for APIs, webhooks, automation tools, public file URLs, content types, size limits, and debugging.
Google Drive Links vs Direct File URLs
Learn why Google Drive share links fail in APIs and how to turn downloaded or exported Drive files into direct URLs for OCR, AI, social, and document workflows.
Content-Type Headers for File URLs
Understand Content-Type headers for public file URLs and why OCR, AI, social, document, and automation APIs reject URLs with the wrong MIME type.
File URL Expiry and Retention
Plan file URL expiry and retention for public workflow URLs, including short-lived handoffs, delete-after-fetch cleanup, retries, and sensitive files.
Move from concept to API only when the URL shape is clear.
Once you know whether the workflow needs a direct URL, a public CDN URL, or storage-level signing, the implementation gets smaller.
Upload API
Create a direct public URL and file ID from a file in your workflow.
Temporary URL
Create public access that expires when the job window ends.
Delete URL
Remove public access after the destination confirms it fetched the file.
Common questions
Which guide should I read first?
Start with the direct file URL guide if another API is rejecting a share link, attachment URL, or Drive link.
Are guides different from docs?
Yes. Guides explain decisions and failure modes. Docs show exact endpoint behavior and request fields.
Do guides apply to no-code automation tools?
Yes. n8n, Make, Zapier, and Pipedream workflows often hit the same URL shape issues as custom code.