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Cashew (Testnet) Daphne (Mainnet) LINE Blockchain Developers BITMAX Wallet LINE Blockchain Explorer Your Game Your Travel Your Health Your Social LINE Blockchain LINE Blockchain Platform Your Blockchain Services Data pipeline LINE Blockchain Framework Query Transaction Keystore

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Cashew (Testnet) Daphne (Mainnet) LINE Blockchain Developers BITMAX Wallet LINE Blockchain Explorer Your Game Your Travel Your Health Your Social LINE Blockchain LINE Blockchain Platform Your Blockchain Services Data pipeline LINE Blockchain Framework Query Transaction Keystore

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Cashew (Testnet) Daphne (Mainnet) LINE Blockchain Developers BITMAX Wallet LINE Blockchain Explorer Your Game Your Travel Your Health Your Social LINE Blockchain LINE Blockchain Platform Your Blockchain Services Data pipeline LINE Blockchain Framework Query Transaction Keystore

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Cashew (Testnet) Daphne (Mainnet) LINE Blockchain Developers BITMAX Wallet LINE Blockchain Explorer Your Game Your Travel Your Health Your Social LINE Blockchain LINE Blockchain Platform Your Blockchain Services Data pipeline LINE Blockchain Framework Query Transaction Keystore

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Cashew (Testnet) Daphne (Mainnet) LINE Blockchain Developers BITMAX Wallet LINE Blockchain Explorer Your Game Your Travel Your Health Your Social LINE Blockchain LINE Blockchain Platform Your Blockchain Services Data pipeline LINE Blockchain Framework Query Transaction Keystore

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Cashew (Testnet) Daphne (Mainnet) LINE Blockchain Developers BITMAX Wallet LINE Blockchain Explorer Your Game Your Travel Your Health Your Social LINE Blockchain LINE Blockchain Platform Your Blockchain Services Data pipeline LINE Blockchain Framework Query Transaction Keystore

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Cashew (Testnet) Daphne (Mainnet) LINE Blockchain Developers BITMAX Wallet LINE Blockchain Explorer Your Game Your Travel Your Health Your Social LINE Blockchain LINE Blockchain Platform Your Blockchain Services Data pipeline LINE Blockchain Framework Query Transaction Keystore

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BITMAX Wallet https://wallet.bitmax.me

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Custodial wallet service for LINE users › LINE is responsible for storage of private keys › No chance to lose your private key › Designed for mass adoption › No need to install browser extensions or client apps › Grant transactions with a plain browser › via LINE message › via page redirect

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BITMAX integration › BITMAX: LINE’s crypto asset trading service › https://www.bitmax.me/ › BITMAX user → BITMAX Wallet user › But not vice versa › Shows balance of LINK(LN) in BITMAX › Redeem LINK Rewards to LINK › https://blockchain.line.me/linkrewards/ › LINK Reward : NFT on Daphne › LINK : LINE’s cryptocurrency on Bamboo › KYC is required on BITMAX

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Features › LINE Login › Cashew / Daphne › Access your tokens › For all services › Service token, Item token › Send tokens to LINE friends › Do not write down wallet addresses › Even for non-BITMAX Wallet users

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LINE Blockchain Developers https://blockchain.line.biz/

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High-level API service for LINE Blockchain Console RESTful API Docs

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High-level API service for LINE Blockchain Console RESTful API Docs

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High-level API service for LINE Blockchain Console RESTful API Docs

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API Key features Callback Item tokens Transactions Service wallets Users Service tokens

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DEMO › LBCC (LINE Blockchain Coffee Coin) › Service token (Fungible) › Americano : 200 LBCC › LBCR (LINE Blockchain Coffee Reward) › Item token (Non-fungible) › Buy 1 Americano, Get 1 LBCR › 5 LBCR : 1 Americano https://github.com/behumble/line-blockchain-coffee

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DEMO 02: Create a service & a service wallet

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DEMO-04: Create a service token (LBCC)

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DEMO: Create LBCR

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DEMO: Find transactions with LBE

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DEMO: Cashew only Add a test user

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Run line-blockchain-coffee › https://github.com/behumble/line-blockchain-coffee › Written in JavaScript › https://nuxtjs.org/ › https://vuetifyjs.com/ › LINE Login npm package › https://github.com/nkjm/line-login › Find User ID on login success › like U111ed5915b06ee098a24a725d02f5d40

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DEMO: Environment variables

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DEMO: Run server and set callback uri

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DEMO: Send to a user from Console UI

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Server-to-Server API Your Service LINE Blockchain Developers User Client-Server authentication (Cookie / Session) Server-Server authentication (API Key/Secret)

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Signing API Requests https://docs-blockchain.line.biz/api-guide/Authentication normalize timestamp nonce API secret signature › Verify sender › Tamper-proof › Protect against replay attacks › Dev tips › Signing proxy server › https://github.com/behumble/lbp-signing-proxy › Sample snippets (Golang, JavaScript, C#) › Go : https://github.com/line/blockchain-sample-link-cinema/blob/bfe38337f941dee0b342fe865ac0e38ac297e962/api/api.go#L117 › JS : https://github.com/behumble/lbp-signing-proxy/blob/master/lbp.js#L4 › C# : https://github.com/line/blockchain-sample-mage-duel/blob/master/Server/TCGSampleServer/Service/TCGGameService/LBD/Util/Signature.cs#L124

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DEMO: Using API with cURL

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DEMO: Mint and balance in LBC

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DEMO: Metamask

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DEMO: LINE Blockchain Coffee

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DEMO: What’s in the LBCR?

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Item token image base URI ${BASE_IMAGE_URI}${TOKEN-ID} or ${BASE_IMAGE_URI}${TOKEN-TYPE}

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Why LINE Blockchain Platform? Large User Base Ease of use LINK Rewards

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Choose your plan

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Thank you