Question

所以我尝试使用以下代码从 quickchart.io 获取 .png 文件：

 async exec(message, args) {

        console.log(chalk.green("chart requested  " + chalk.yellow(message.author.username) + " in " + chalk.magentaBright(message.channel.guild.name)));
        console.log(args.coin)
        const getChart = async () => {

            const result = await fetch(`https://quickchart.io/chart?chart={
                type: 'line',
                data: {
                  labels: ['Q1', 'Q2', 'Q3', 'Q4'],
                  datasets: [{
                    label: 'Revenue',
                    data: [100, 200, 300, 400],fill:false
                  }]
                }
              }&backgroundColor=transparent&width=500&height=300&devicePixelRatio=1.0&format=png&version=2.9.3`)
            const json = await result
            return json
        }
        let com = await getChart()
        if (message) {
            let embed = new Discord.MessageEmbed()
                .setImage(`${com}`)

            message.channel.send({ embed }).catch(function (rej) {
                message.channel.send("Sorry, I was unable to process this command. Make sure that I have full send permissions for embeds and messages and then try again!");
                console.log(chalk.red('Error sending trending list! : ' + chalk.cyan(rej)));
            });
        }

    }

我知道我犯了一个巨大的错误，但我想更多地了解这个错误以及我做错了什么。谢谢

Answer 1

您必须提供图像网址，以便您必须提供快速图表链接，而不是您当前尝试获取图像的位置，如下所示：

let com = `https://quickchart.io/chart?chart={
                type: 'line',
                data: {
                  labels: ['Q1', 'Q2', 'Q3', 'Q4'],
                  datasets: [{
                    label: 'Revenue',
                    data: [100, 200, 300, 400],fill:false
                  }]
                }
              }&backgroundColor=transparent&width=500&height=300&devicePixelRatio=1.0&format=png&version=2.9.3`

if (message) {
  // rest of code
}

DiscordAPIError: Invalid Form Body embed.image.url: 不支持方案“[对象响应]”。方案必须是 ('http', 'https')

1 个答案: