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AZURE Function AppでSendGridを使ってメール送信する

Last updated at 2017-10-20Posted at 2017-10-19

準備

SendGridのアカウントを作り、メール送信権限のあるAPI KEYを作成する
AZURE Function を作成し、コード形式にjavascriptを指定する
以下のコードのAPI KEY部分を書き換えてindex.jsを上書きする

コード

index.js

module.exports = function (context, req) {
    context.log('begin function');

    //アプリケーション設定で設定しておいたSendGridApiKeyを取得する
    var sendgridApiKey = process.env["SendGridApiKey"];

    var param1;

    if (req.query.name) {
        param1 = req.query.name;
    } else if ((req.body && req.body.name)) {
        param1 = req.body.name;
    }

    if (param1) {
        // send mail
        var http = require("https");

        var options = {
          "method": "POST",
          "hostname": "api.sendgrid.com",
          "port": null,
          "path": "/v3/mail/send",
          "headers": {
            "authorization": "Bearer " + sendgridApiKey,
            "content-type": "application/json"
          }
        };

        var req = http.request(options, function (res) {
          var chunks = [];

          res.on("data", function (chunk) {
            chunks.push(chunk);
          });

          res.on("end", function () {
            var body = Buffer.concat(chunks);
            console.log(body.toString());
          });
        });

        req.write(JSON.stringify({ personalizations:
           [ { to: [ { email: param1, name: param1 } ],
               subject: 'Hello, World!' } ],
          from: { email: 'test@example.com', name: 'Test Sender' },
          reply_to: { email: 'test@example.com', name: 'Test Sender' },
          subject: 'Hello, World!',
          content:
           [ { type: 'text/html',
               value: '<html><p>Hello, world!</p></html>' } ] }));
        req.end();

        //make response
        context.res = {
            // status: 200, /* Defaults to 200 */
            body: "Hello"
        };
    }
    else {
        context.res = {
            status: 400,
            body: "Please pass an email address on the query string or in the request body"
        };
    }
    context.done();
};

実行

メッセージボディかクエリ文字列に送信先アドレスを入力して実行する。
name:TO-MAIL-ADDRESS

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