Method and system for secure transactions on a social network platform

A computer system including a first server, a client device and a virtual product server that implements a secure transaction via a social network platform, comprising:

• one or more processors;
• and
• memory having instructions stored thereon, which when executed by the one or more processors cause the processors to perform operations, comprising:
• executing by the first server an instant messaging application hosting the social network platform, including displaying on the client device a user interface corresponding to a chat session of the instant messaging application;
• sending, by the first server, a request generating rule and integrity key information to a virtual product server;
• generating, by the virtual product server, display information using the generating rule and the integrity key information, wherein the display information consists of a QR code or product link;
• scanning, by the client device, the QR code or receiving, by the client device, an input for the product link;
• obtaining, by the client device, a product purchase request based on the scanning of the QR code or the receiving the input for the product link;
• receiving, via the instant messaging application, the product purchase request from the client device, the product purchase request configured to request transaction of a sticker or emotion item from the virtual product server and including product information, product server information and a user account identifier of the social network platform, wherein the virtual product server is distinct from the first server and the client device;
• authenticating by the first server the product purchase request for the sticker or emotion item according to the integrity key corresponding to the virtual product server;
• forwarding by the first server the product purchase request of the corresponding sticker or emotion item to the virtual product server in an encrypted format;
• receiving by the first server a confirmation message from the virtual product server, the confirmation message including a product purchase instruction of the corresponding sticker or emotion item generated by the virtual product server according to the integrity key;
• after receiving the confirmation message from the virtual product server, initiating by the first server a payment transaction between the user account identifier and a user account of the virtual product server at the social network platform, further including:
• sending, to the client device, the product purchase instruction of the corresponding sticker or emotion item;
• receiving, from the client device, a user confirmation of the product purchase instruction and information of a first financial account entered by a user of the client device;
• obtaining a second financial account associated with the user account of the virtual product server;
• and
• making a financial transfer from the first financial account to the second financial account associated with the virtual product server based on a price of the corresponding sticker or emotion item in the product purchase instruction;
• and
• after completing the payment transaction,
• sending, by the first server, a payment completion message to the client device and the virtual product server, respectively,
• obtaining, by the client device, information of the sticker or emotion item from the virtual product server, and
• displaying the sticker or emotion item within a text message on the user interface that corresponds to the chat session of the instant messaging application on the client device.

A non-transitory computer-readable medium, having instructions stored thereon, which when executed by a computer system including a first server, a client device and a virtual product server, each having one or more processors cause the computer system to perform operations comprising:

• executing by the first server an instant messaging application hosting a social network platform, including displaying on the client device a user interface corresponding to a chat session of the instant messaging application;
• sending, by the first server, a request generating rule and integrity key information to a virtual product server;
• generating, by the virtual product server, display information using the generating rule and the integrity key information, wherein the display information consists of a QR code or product link;
• scanning, by the client device, the QR code or receiving, by the client device, an input for the product link;
• obtaining, by the client device, a product purchase request based on the scanning of the QR code or the receiving the input for the product link;
• receiving, via the instant messaging application, the product purchase request from the client device, the product purchase request configured to request transaction of a sticker or emotion item from the virtual product server and including product information, product server information and a user account identifier of the social network platform, wherein the virtual product server is distinct from the first server and the client device;
• authenticating by the first server the product purchase request for the sticker or emotion item according to the integrity key corresponding to the virtual product server;
• forwarding by the first server the product purchase request of the corresponding sticker or emotion item to the virtual product server in an encrypted format;
• receiving by the first server a confirmation message from the virtual product server, the confirmation message including a product purchase instruction of the corresponding sticker or emotion item generated by the virtual product server according to the integrity key;
• after receiving the confirmation message from the virtual product server, initiating by the first server a payment transaction between the user account identifier and a user account of the virtual product server at the social network platform, further including:
• sending, to the client device, the product purchase instruction of the corresponding sticker or emotion item;
• receiving, from the client device, a user confirmation of the product purchase instruction and information of a first financial account entered by a user of the client device;
• obtaining a second financial account associated with the user account of the virtual product server;
• and
• making a financial transfer from the first financial account to the second financial account associated with the virtual product server based on a price of the corresponding sticker or emotion item in the product purchase instruction;
• and
• after completing the payment transaction,
• sending, by the first server, a payment completion message to the client device and the virtual product server, respectively,
• obtaining, by the client device, information of the sticker or emotion item from the virtual product server, and
• displaying the sticker or emotion item within a text message on the user interface that corresponds to the chat session of the instant messaging application on the client device.