Robust Large File Uploader with Smart Chunking
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Automate the reliable upload of files, including large ones, to any HTTP endpoint. This workflow intelligently handles file size checks, splits large files into manageable chunks, and manages upload sessions to ensure successful data transfer.
About This Workflow
This powerful n8n workflow provides a comprehensive solution for uploading files of any size to external services via HTTP requests. It begins by either receiving a file directly or fetching it from a specified URL. Before initiating the upload, it performs crucial checks for file presence and size, ensuring that resources are available and limits aren't exceeded. For large files, the workflow automatically splits them into smaller, more manageable chunks. It then systematically uploads each chunk, managing session creation and retries, making it ideal for services with upload limits or for building resumable upload capabilities. This modular design ensures robust, error-tolerant, and efficient file transfers.
Key Features
- Intelligent Large File Chunking: Automatically splits large files into smaller parts, enabling uploads to services with size restrictions and improving transfer reliability.
- Automated File Acquisition: Fetch files directly from a URL using HTTP requests, or receive them as input from other workflows.
- Robust Error Handling: Includes built-in checks for file existence and size constraints, stopping the workflow with clear errors if conditions are not met.
- Configurable Upload Sessions: Manages the creation and utilization of upload sessions (e.g., for resumable uploads or multi-part uploads) via flexible HTTP request nodes.
- Modular & Extensible: Designed with separate components for file processing, chunking, and uploading, making it easy to adapt to various cloud storage or API requirements.
How To Use
- Trigger the Workflow:
- To use this as a sub-workflow, connect the
input(Execute Workflow Trigger) node to your main workflow, passing the file data or URL. - For testing or direct use, activate the
Start testing(Manual Trigger) node.
- To use this as a sub-workflow, connect the
- Specify File Input:
- If using the
Start testingpath, configure theGet drive urlandGet filehttpRequestnodes to fetch your target file. - If triggering via
input, ensure the preceding workflow provides the file data or URL in the expected format.
- If using the
- Configure API Endpoints: Adjust the
httpRequestnodes (createSession,loadFile) to point to your target upload service's API endpoints. Include necessary authentication (e.g., API keys, OAuth tokens) in their parameters. - Define Chunking Logic (Optional but Recommended): Review and customize the
getFileSizeInBytesandSplitFileToChunkscodenodes if you have specific requirements for file size calculation or how files should be divided. - Set Size Limits and Error Handling: Modify the conditions in the
isGraterThenMaxandhasFileifnodes, and update the messages inNo free disk spaceandNo file ErrorstopAndErrornodes as needed for your operational policies.
Apps Used
Workflow JSON
{
"id": "3efda764-c698-459f-b773-be92a9f8415d",
"name": "Robust Large File Uploader with Smart Chunking",
"nodes": 8,
"category": "DevOps",
"status": "active",
"version": "1.0.0"
}Note: This is a sample preview. The full workflow JSON contains node configurations, credentials placeholders, and execution logic.
Get This Workflow
ID: 3efda764-c698...
About the Author
DevOps_Master_X
Infrastructure Expert
Specializing in CI/CD pipelines, Docker, and Kubernetes automations.
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