android - Server To Connect Mobile Device Too -


hi new server application side of things.

so here questions. have mobile app connect server based on location, id number, , name. when user enters in information text field , clicks submit, information submitted server app on phone, , based on information server server return user number , there desktop client receive notification new user has been registered or added que list.

could give me background on things need study, , things need this? implementation behind be. costly.

thanks in advance.

how users authenticated? using sql database? if you need make connection database , authenticate provided user credentials


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