如何在 gapi.client.gmail.users.messages.send 中发送 html 消息

Question

我尝试以 HTML 格式发送一个字符串，以便在 gapi.client.gmail.users.messages.send API 中设置我的消息样式，但无法正常工作。是否可以为此 API 发送 html 消息？

sendEmail(res, emailList?) {
   //method one:
    let message = document.createElement('div');
    message.innerHTML = '<label style="color:red">Hello world<label>';

   //method two: 
    message = $('<label style="color:red">Hello world<label>');

    let mimeData: any = [
      "Subject: =?utf-8?B?" + window.btoa(unescape(encodeURIComponent(this.emailObject.subject))) + "?=",
      "MIME-Version: 1.0",
      "Content-Type: text/plain; charset=UTF-8",
      "Content-Transfer-Encoding: 7bit",
      "",
      "" + message];
    mimeData = dest.concat(mimeData).join("\n").trim();
    const raw = window.btoa(unescape(encodeURIComponent(mimeData))).replace(/\+/g, '-').replace(/\//g, '_');
    gapi.client.gmail.users.messages.send({
      'userId': 'me',
      'resource': {
        'raw': raw
      }
    }).execute(res => {
      console.log('Email sent result', res);
    });
  }

Answer 1

我解决了这个问题，所以将 content-type 更改为 text/html 就可以了。

message = '<label style="color:red">Hello world<label>';
  let mimeData: any = [
      "Subject: =?utf-8?B?" + window.btoa(unescape(encodeURIComponent(this.emailObject.subject))) + "?=",
      "MIME-Version: 1.0",
      "Content-Type: text/html; charset=UTF-8",
      "Content-Transfer-Encoding: 7bit",
      "",
      "" + message];