如何使用Google Apps脚本和Discord Webhook将图像上传到Discord？ [英] How to upload an image to Discord using Google Apps Script and a Discord Webhook?

问题描述

我编写了以下脚本：

function uploadImageToDiscord() {

  var link = "https://i.imgur.com/image.jpg";
  var img = UrlFetchApp.fetch(link).getBlob();

  var discordUrl = "https://discordapp.com/api/webhooks/mywebhook";

  var payload = {
    "file": img
  };

  var params = {
    headers: {
        "Content-Type": "multipart/form-data"
    },
    method: "post",
    payload: payload,
    muteHttpExceptions: true
  };

  var response = UrlFetchApp.fetch(discordUrl, params);

  Logger.log(response.getContentText());

}

不过，GAS告诉我我正在尝试发送空消息。有人可以帮我吗？

However, GAS tells me that I'm trying to send an empty message. Can anyone help me?

错误消息

错误一定与我尝试下载图像的方式有关：

The error must be related to either the way of me trying to download the image:

var img = UrlFetchApp.fetch(link).getBlob();

或定义多部分/表单数据内容有效负载的方式：

or the way of how I define the payload for the multipart/form-data content:

 var payload = {
    "file": img
 };

推荐答案

此修改如何？

var params = {
  headers: {
      "Content-Type": "multipart/form-data"
  },
  method: "post",
  payload: payload,
  muteHttpExceptions: true
};

收件人：

To:

var params = {
  method: "post",
  payload: payload,
  muteHttpExceptions: true
};

其他信息：

例如，如果要将文本添加到文件中，请使用以下请求正文。

Additional information:

For example, if you want to add the text to the file, please use the following request body.

var payload = {
  content: "sample text", // Added
  file: img
};
var params = {
  method: "post",
  payload: payload,
  muteHttpExceptions: true
};

参考：

• Webhook资源



Reference:

• Webhook Resource

在我的环境中，我正在使用这样的请求正文。而且效果很好。但是，如果在您的环境中无法正常工作，请告诉我。我想考虑其他解决方案。

In my environment, I am using such request body. And it works fine. But if in your environment, it didn't work, please tell me. I would like to think of other solutions.

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