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After the first time, the Uploader will use the acquired refresh_token to automatically log in on your behalf. This process requires the information in the sead-google.json file provided with the Uploader, and it will write a refresh.txt file to your disk to remember your login. Deleting "refresh.txt" will cause the Uploader to generate a new code as it did the first time. Deleting sead-google.json (or not having it in the same directory you're invoking the client from) will cause the Uploader to fail.
Using Curl for Direct Service
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Invocation
Curl (curl.haxx.se) is a command line tool useful for invoking web services. In addition to the restful services listed at http://sead.ncsa.illinois.edu/sead-acr-api, SEAD provides a command line tool and session management services to simplify authentication:
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