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microvms: add UploadFile and DownloadFile - #1191
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kishlay-singh-DO
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Oct 23, 2026
kishlay-singh-DO
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- UploadFile streams a raw body with Content-Length (the API refuses chunked bodies), optional mode, uid/gid (together), and sha256 for server-side verification; returns MicroVMFileInfo.
- DownloadFile returns a streaming body that verifies the content against X-Checksum-Sha256 as it is read (ErrMicroVMFileChecksum in place of io.EOF on mismatch), plus SizeBytes and SHA256.
PUT/GET /v2/microvms/{id}/files (single-file transfer through the guest
agent, feature gate file_transfer):
- UploadFile streams a raw body with Content-Length (the API refuses
chunked bodies), optional mode, uid/gid (together), and sha256 for
server-side verification; returns MicroVMFileInfo.
- DownloadFile returns a streaming body that verifies the content
against X-Checksum-Sha256 as it is read (ErrMicroVMFileChecksum in
place of io.EOF on mismatch), plus SizeBytes and SHA256.
Co-authored-by: Cursor <cursoragent@cursor.com>
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