はてなブックマーク

const readlineSync = require('readline-sync'); const nem = require("nem-sdk").default; const QRCode = require('qrcode'); class NemOfflineTransaction { constructor(networkId) { this.networkId = networkId; } start() { // [1] 入力 this.keyIn(); // [2] 確認 this.confirm(); // [3] 署名付きのトランザクション生成 const tx = this.generateTransaction(); // [4] QRコードへ変換 this.generateQRCode(tx); } keyIn() { this.recipient = re

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GoogleAnalyticsのカスタムキャンペーンを利用することで、 リファラーなしの遷移や、出稿した有料のWeb広告からのトラフィック分析を することができる。 この機能はURLクエリパラメータ上にutm_campaignやutm_medium等 を含めることで使えるようになる。 Qiitaのメールマガジン上のURLをクリックした際にも、utm_campaign等が付与されていますね。 AdWordsへ出稿した場合はこれらのパラメータが自動で付与されます。 上記URLの例に記載されている http://www.example.com/?utm_campaign=spring&utm_medium=email&utm_source=newsletter1 がクリックされた場合、GoogleAnalyticsには以下の2.が記載される。 (GoogleAnalytics上で[トラフィック]

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key_len = ActiveSupport::MessageEncryptor.key_len secret = Rails.application.key_generator.generate_key('salt', key_len) crypt = ActiveSupport::MessageEncryptor.new(secret) encrypted = crypt.encrypt_and_sign('Qiitaきーたキータ') # => "Adp1SPOkYRqLgTMoAlcyEganoimCdT8k/tj4zQXZiUiN--9A34IcmwD9pG4ysj--+drve0A05vHPXYF33aw4hg==" crypt.decrypt_and_verify(encrypted) # => 'Qiitaきーたキータ' 注意事項 同一アプリケーション内で完結する処理(DB

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