Postman/Newman无File选项文件上传咨询：Form Data文本与Raw JSON

Hey there! I get that using Postman's built-in file picker can be finicky with Newman, so let's walk through two reliable workarounds—one using Form Data (Text type) and another using Raw JSON, plus fix that 404 issue you hit with the Raw method.

1. Upload via Body > Form Data (Text Type) #

This method lets you pass file content directly as text in form fields, no file picker needed:

• Open your Postman request, set the HTTP method (usually POST) and target URL.
• Switch to the Body tab, select form-data from the options.
• Add a new key (e.g., fileContent), then click the dropdown next to it (default is File) and switch it to Text.
• In the "Value" field, paste the full text content of your file (if it's a JSON file, just paste the entire JSON string here).
• Add any additional required fields (like your uploadType: "ORDER" or headerIncl parameters) as separate form-data entries.
• Save this request to a collection, then run it with Newman using:

  newman run your-collection-name.json
  

2. Upload via Body > Raw (JSON Type) #

Your 404 response is almost certainly a URL or header issue—let's fix that while setting up the Raw JSON upload:

• Double-check your request URL first: make sure it's the exact endpoint that accepts JSON-based file uploads (no typos, correct port, right environment variables if you're using them).
• Switch to the Body tab, select raw, then choose JSON from the dropdown menu (this auto-sets the Content-Type: application/json header—don't remove this!).
• Construct your request body to include the file content as a field value. For example:

  {
    "uploadType": "ORDER",
    "headerIncl": "your-header-value",
    "fileContent": "full-text-content-of-your-file-here"
  }
  

  If your file is JSON itself, make sure to escape double quotes (e.g., "key": "\"value\"") to keep the request body valid.
• Save the request to your collection, then run it with Newman using the same command as above.

Quick Troubleshooting #

• Newman failing with File option: This usually happens because Newman needs absolute file paths or has permission issues—our text-based methods avoid this entirely.
• Raw JSON returning 404: Verify the endpoint URL again, confirm the backend accepts JSON payloads for uploads, and ensure the Content-Type header is set to application/json (Postman should do this automatically when you select JSON raw, but double-check the Headers tab just in case).

内容的提问来源于stack exchange，提问作者Avdhesh