OptionalcontentThe content type the file is served with, whatever the one it was stored with.
OptionalfilenameThe suggested name for the file once it's downloaded/saved. Note: the string is cleaned to ensure maximum compatibility with every OS.
OptionalinlineIf true, the browser shows the file (e.g. a PDF in its viewer) instead of downloading it.
OptionalsecSeconds to URL expiration; default: 180 for GET, 300 for PUT.
OptionalversionA version of the object, in a versioned bucket; default: the current one.
Options for generating a signed URL to get a file.