1

我一直在关注 Discord.js 的 REST API 指南，但我不断收到返回 json 的第一个属性无法读取的错误。我知道api地址是正确的。

这是响应的样子： 回复

这是我的代码：

index.js

const Discord = require('discord.js');
const fetch = require('node-fetch');
const querystring = require('querystring');

const { prefix, token, api } = require('./config.json');

const client = new Discord.Client();

const trim = (str, max) => (str.length > max ? `${str.slice(0, max - 3)}...` : str);

client.once('ready', () => {
    console.log('Ready!');
});

client.on('message', async message => {
    if (!message.content.startsWith(prefix) || message.author.bot) return;

    const args = message.content.slice(prefix.length).split(/ +/);
    const command = args.shift().toLowerCase();

    if (command === 'div2') {
        if (!args.length) {
            return message.channel.send('You need to supply a search term!');
        }

        const query = querystring.stringify({ name: args.join(' ') });

        const { body } = await fetch(`${api}search.php?${query}&platform=uplay`)
            .then(response => response.json());         

        if (!body.results.length) {
            return message.channel.send(`No results found for **${args.join(' ')}**.`);
        }

        const [answer] = body.results;

        const embed = new Discord.RichEmbed()
            .setColor('#EFFF00')
            .setTitle(answer.name)
            .addField('Platform', trim(answer.platform, 1024))
            .addField('Kills PvE', trim(answer.kills_npc, 1024));


        message.channel.send(embed);
    }
});
4

1 回答 1

1

您的响应json图像没有body属性。所以什么时候做destructuring assignment，没有对应body的响应分配给。所以body是未定义的。

将您的解构更改为：

const { results } = await fetch(`${api}search.php?${query}&platform=uplay`)
  .then(response => response.json());
// results is array from the response

或者简单地说；不要解构（您可以保留其余代码）：

const body = await fetch(`${api}search.php?${query}&platform=uplay`)
  .then(response => response.json());
于 2019-05-15T13:54:00.237 回答