Gmail API 不使用 Base64 编码发送邮件

Question

我正在使用这个界面： https://developers.google.com/gmail/api/v1/reference/users/messages/send#examples

我正在测试 API 来自网站表单的请求。它需要原始的 Base64 编码字符串，例如：

TUlNRS1WZXJzaW9uOiAxLjANClJlY2VpdmVkOiBieSAxMC4xOTQuNjguMjI3IHdpdGggSFRUUDsgV2VkLCAyNCBBdWcgMjAxNiAwMjo1OToxNyAtMDcwMCAoUERUKQ0KRGF0ZTogV2VkLCAyNCBBdWcgMjAxNiAxMTo1OToxNyArMDIwMA0KRGVsaXZlcmVkLVRvOiBrcnVub0B1bGl4dHJhdmVsLmNvbQ0KTWVzc2FnZS1JRDogPENBSzB5QmZZeEgwS1dGbng2TzNfZ3ZNRkxtVlB5RVY9NjdnQW5qRWdPaHIzSGZOTkJCUUBtYWlsLmdtYWlsLmNvbT4NClN1YmplY3Q6IFRoaXMgaXMgYSBzdWJqZWN0DQpGcm9tOiBLcnVub3NsYXYgVUxJWFRyYXZlbCA8a3J1bm9AdWxpeHRyYXZlbC5jb20-DQpUbzogS3J1bm9zbGF2IEJhbm92YWMgPGt1bm9rZGV2QGdtYWlsLmNvbT4NCkNvbnRlbnQtVHlwZTogbXVsdGlwYXJ0L2FsdGVybmF0aXZlOyBib3VuZGFyeT0wNDdkN2JhZTQ5NjRhMmQ3MzAwNTNhY2U1NWUxDQoNCi0tMDQ3ZDdiYWU0OTY0YTJkNzMwMDUzYWNlNTVlMQ0KQ29udGVudC1UeXBlOiB0ZXh0L3BsYWluOyBjaGFyc2V0PVVURi04DQoNClRoaXMgaXMgYSBib2R5DQoNCi0tMDQ3ZDdiYWU0OTY0YTJkNzMwMDUzYWNlNTVlMQ0KQ29udGVudC1UeXBlOiB0ZXh0L2h0bWw7IGNoYXJzZXQ9VVRGLTgNCg0KPGRpdiBkaXI9Imx0ciI-VGhpcyBpcyBhIGJvZHk8YnI-PC9kaXY-DQoNCi0tMDQ3ZDdiYWU0OTY0YTJkNzMwMDUzYWNlNTVlMS0t

如何改为使用基本参数（例如主题、发件人、收件人、邮件正文）来发送邮件？

Answer 1

您首先使用 headers 构建消息，如您提到的 From 和 Subject，但您必须在发送之前对消息进行编码。没有办法解决这个问题。

下面是JavaScript中的例子，使用了JQuery：

// Base64-encode the mail and make it URL-safe 
// (replace all "+" with "-" and all "/" with "_")
var encodedMessage = btoa([
  "From: sender@gmail.com\r\n",
  "To: reciever@gmail.com\r\n",
  "Subject: Subject of the message\r\n\r\n",

  "This is the text of the message"
].join("")).replace(/\+/g, '-').replace(/\//g, '_');

$.ajax({
  method: "POST",
  url: "https://www.googleapis.com/gmail/v1/users/me/messages/send?access_token={access_token}",
  contentType: "application/json",
  data: JSON.stringify({           
    raw: encodedMessage
  })
});

Gmail API 不使用 Base64 编码发送邮件

Gmail API send message without using Base64 encode

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gmail-api