Abstract: Provided is a connection management method and system for relaying a client and a backend module of a server on a server side. A connection management method performed by a connection management system may include receiving a request message from a client device, adding an authentication tag and a service tag for a connection to the request message, verifying a right of the authentication tag and a right of the service tag using a uniform resource identifier (URI) of the request message, searching for a service corresponding to the request message using the URI, and transferring the request message to the found service.

Abstract: Provided is a connection management method and system for relaying a client and a backend module of a server on a server side. A connection management method performed by a connection management system may include receiving a request message from a client device, adding an authentication tag and a service tag for a connection to the request message, verifying a right of the authentication tag and a right of the service tag using a uniform resource identifier (URI) of the request message, searching for a service corresponding to the request message using the URI, and transferring the request message to the found service.

Abstract: Provided is a method and system for a payment service. A payment service method embodied in a computer to provide a payment service may include registering and maintaining a product in a product database for each service, with respect to a plurality of services, creating billing information of a requested product in response to a call of an application program interface (API) of a service for which a product purchase is requested from a user, using the product database, and providing the billing information to a market associated with the user. Here, a payment according to the product purchase may be processed at the market based on the billing information.