LINE TECHPULSE 2022 - How We Build Up O2O Platform to Our Partner Corporation Service

by LINE Developers Taiwan

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Luther Tsai / LINE Pay How We Build Up O2O Platform to Our Partner Corporation Service

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Transfer Deposit LINE Pay Card Offline Payment Digital Finance EcoSystem Online Payment LINE POINTS Technical Support

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My Membership Single QR Payment With Membership Integrated Affiliate Program With Merchant Group Full Digital Wallet With No Physical Card needed

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Starbucks Card Top-up Online with LINE Pay Accumulate Stars with LINE Pay Starbucks Card Full Redeem Record of Starbucks Membership Card

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E-Commerce Platform Starbucks Gift O2O Gifting

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LIFF

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LIFF 'SPOUFOE 4FSWFS 1BZTIPQ (BUFXBZ User Identification Fuse Mechanism LINE AccessToken Java NIO（Non-blocking I/O） High Performance

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LIFF 'SPOUFOE 4FSWFS 1BZTIPQ (BUFXBZ 1SPEVDU"1* 6TFS"1* $BSU"1* %FMJWFSZ"1* Payshop Backend Reduce Workload Easy for System Expansion Micro-service based Architecture -*/&'BNJMZ"1* Friends/Groups Info

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LIFF 'SPOUFOE 4FSWFS 1BZTIPQ (BUFXBZ 1SPEVDU"1* 6TFS"1* $BSU"1* %FMJWFSZ"1* OrderHub Payshop Backend 0SEFS)VC"1* 0SEFS)VC#BUDI -*/&'BNJMZ"1* 0SEFS)VC(8 Friends/Groups Info Order Management in General EC spec Fast Integration with LINE Pay

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2VFVF LIFF 'SPOUFOE 4FSWFS 1BZTIPQ (BUFXBZ 1SPEVDU"1* 6TFS"1* $BSU"1* %FMJWFSZ"1* OrderHub Payshop Backend 0SEFS)VC"1* 0SEFS)VC#BUDI -*/&'BNJMZ"1* 0SEFS)VC(8 Friends/Groups Info Message Queue Integrated for Distribution

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2VFVF LIFF 'SPOUFOE 4FSWFS 1BZTIPQ (BUFXBZ 1SPEVDU"1* 6TFS"1* $BSU"1* %FMJWFSZ"1* OrderHub Payshop Backend 0SEFS)VC"1* 0SEFS)VC#BUDI -*/&'BNJMZ"1* E-Invoice 0SEFS)VC(8 Friends/Groups Info E-Invoice Upload E-Invoice Info Callback Request E-invoice 7PVDIFS"1* 7PVDIFS%BFNPO Voucher System 7PVDIFS &YUFSOBM"1* Voucher System with Escrow Mechanism

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2VFVF LIFF 'SPOUFOE 4FSWFS 1BZTIPQ (BUFXBZ 1SPEVDU"1* 6TFS"1* $BSU"1* %FMJWFSZ"1* OrderHub Payshop Backend 0SEFS)VC"1* 0SEFS)VC#BUDI -*/&'BNJMZ"1* E-Invoice 0SEFS)VC(8 Friends/Groups Info E-Invoice Upload E-Invoice Info Callback Request E-invoice 7PVDIFS"1* 7PVDIFS%BFNPO Voucher System 1BZTIPQ &YUFSOBM(BUFXBZ $PPQFSBUJPO 7PVDIFS &YUFSOBM"1* Cooperation Redeem User’s Voucher via External Gateway

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2VFVF LIFF 'SPOUFOE 4FSWFS 1BZTIPQ (BUFXBZ 1SPEVDU"1* 6TFS"1* $BSU"1* %FMJWFSZ"1* OrderHub Payshop Backend 0SEFS)VC"1* 0SEFS)VC#BUDI -*/&'BNJMZ"1* E-Invoice 0SEFS)VC(8 Friends/Groups Info E-Invoice Upload E-Invoice Info Callback Request E-invoice 7PVDIFS"1* 7PVDIFS%BFNPO Voucher System 1BZTIPQ &YUFSOBM(BUFXBZ $PPQFSBUJPO 7PVDIFS &YUFSOBM"1* Escrow Bank

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2VFVF LIFF 'SPOUFOE 4FSWFS 1BZTIPQ (BUFXBZ 1SPEVDU"1* 6TFS"1* $BSU"1* %FMJWFSZ"1* OrderHub Payshop Backend 0SEFS)VC"1* 0SEFS)VC#BUDI -*/&'BNJMZ"1* E-Invoice 0SEFS)VC(8 Friends/Groups Info E-Invoice Upload E-Invoice Info Callback Request E-invoice 7PVDIFS"1* 7PVDIFS%BFNPO Voucher System 1BZTIPQ &YUFSOBM(BUFXBZ $PPQFSBUJPO 7PVDIFS &YUFSOBM"1* Escrow Bank System Structure

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API Server -# -# Gateway Server Web Server 8FC 4UBUJD'JMFT 8FC 4UBUJD'JMFT API Server "QQMJDBUJPO" "QQMJDBUJPO# "QQMJDBUJPO$ (BUFXBZ "QQMJDBUJPO (BUFXBZ "QQMJDBUJPO Dedicate Server with Resource Reserved Hard to Scale Up/Down with Request Dynamically Database System Structure Legacy Infrastructure

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-# -# Gateway Server Web Server (BUFXBZ "QQMJDBUJPO (BUFXBZ "QQMJDBUJPO System Structure Cluster Based Infrastructure

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How to Integrate with LINE Pay O2O Platform

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1BZTIPQ &YUFSOBM(BUFXBZ Integrate with LINE Pay Payshop LIFF APP 1BZTIPQ &YUFSOBM(BUFXBZ 1BZTIPQ (BUFXBZ 1SPEVDU"1* 6TFS"1* $BSU"1* %FMJWFSZ"1* Payshop Backend LINE AccessToken HMAC-SHA256 LINE AccessToken OrderHub 0SEFS)VC"1* 0SEFS)VC#BUDI 0SEFS)VC(8 $PPQFSBUJPO 4FSWFS LIFF APP $PPQFSBUJPO 4FSWFS 7PVDIFS"1* 7PVDIFS%BFNPO Voucher System Merchant Customer Notify Cooperation Channel Access Token

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› Protect LINE Pay Servers › HMAC-SHA256 Algorithm › HTTP Method › GET › Signature = Base64(HMAC-SHA256(Secret, (Secret + URL + Query Strings + nonce))) › POST › Signature = Base64(HMAC-SHA256(Secret, (Secret + URL + Request Body + nonce))) Hash Based Message Authentication Code HMAC Public API With HMAC

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Integrate with LINE Pay Payshop WEB WEB LIFF 1BZTIPQ &YUFSOBM(BUFXBZ 1SPEVDU"ENJO"1* 6TFS"ENJO"1* $BSU"ENJO"1* %FMJWFSZ"ENJO"1* Payshop Backend Merchant Authentication OrderHub 0SEFS)VC"ENJO"1* $PPQFSBUJPO 4FSWFS 7PVDIFS"1* 7PVDIFS%BFNPO Voucher System .FSDIBOU $FOUFS OAuth Redeem Request 1BZTIPQ "ENJO(BUFXBZ HMAC-SHA256 Merchant Authentication HMAC-SHA256

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Future Works

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Redeem with LINE Pay Partner App APP 1BSUOFS"QQ (BUFXBZ 1SPEVDU"ENJO"1* 6TFS"ENJO"1* $BSU"ENJO"1* %FMJWFSZ"ENJO"1* Payshop Backend OrderHub 0SEFS)VC"ENJO"1* 7PVDIFS"1* 7PVDIFS%BFNPO Voucher System Redeem Request 1BZTIPQ "ENJO(BUFXBZ

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Summary

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What we provided via Payshop Voucher Issuing with Escrow Mechanism Order System with LINE Pay Integration & E-Invoice Issue Mechanism Product Selling Channel with General EC specification