Using the google cloud, this server saves names and values and manipulate simple manipulations on them. use the server as follow:
/set: set a new name and value to the data store
Example: https://salihzidb.appspot.com/set?name=salih&value=10
/get: get a value for a name from the datastore
Example: https://salihzidb.appspot.com/get?name=salih
/unset: unset a name value
Example: https://salihzidb.appspot.com/unset?name=salih
/numequalto: check the number of names that have the same value
Example: https://salihzidb.appspot.com/numequalto?value=2
/undo: undo set/unset action on the last entered name
Example: https://salihzidb.appspot.com/undo
/redo: redo set/unset action on the last entered name
Example: https://salihzidb.appspot.com/redo
/end: delete all the data store
Example: https://salihzidb.appspot.com/end
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