1st shot

upd/README.md

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+## Test the server
+
+### single file upload
+
+curl -X POST localhost:8080/api/putfile -F "upload[]=@/home/scip/2023-02-06_10-51.png" -H "Content-Type: multipart/form-data"
+
+get with:
+
+curl -o x http://localhost:8080/api/getfile/05988587-cc1c-4590-9dc0-564b8a912686/2023-02-06_10-51.png
+
+### multiple files upload
+
+curl -X POST localhost:8080/api/putfile -F "upload[]=@/home/scip/2023-02-06_10-51.png" -F "upload[]=@/home/scip/pgstat.png" -H "Content-Type: multipart/form-data" 
+
+## TODO
+
+- return HTTP errors as JSON as well
+- add auto expire customization, e.g. expire after 1 day
+- add cleanup storage per api call (single id and everything)
+- add oauth2