Facebook Messenger bot错误,位置0的JSON中出现意外令牌' [英] Facebook messenger bot error Unexpected token ' in JSON at position 0
本文介绍了Facebook Messenger bot错误,位置0的JSON中出现意外令牌'的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我正在尝试使用NodeJS和Express创建一个Facebook Messenger机器人.
I'm trying to create a Facebook messenger bot using NodeJS and Express.
我正在遵循 facebook指南,当我尝试运行此命令
I'm following the facebook guide and when I tried to run this command
curl -H "Content-Type: application/json" -X POST "localhost:4000/" -d '{"object": "page", "entry": [{"messaging": [{"message": "TEST_MESSAGE"}]}]}'
我遇到此错误SyntaxError: Unexpected token ' in JSON at position 0
这是我的代码:
var express = require('express');
var bodyParser = require('body-parser');
var request = require("request")
var app = express();
var port = process.env.PORT || 4000;
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: true }));
app.get('/', function(req, res) {
if (req.query['hub.verify_token'] === '22222') {
res.send(req.query['hub.challenge']);
console.log("GET")
res.sendStatus(200)
}
console.log("Error: wrong token")
})
app.post('/', function(req, res) {
messaging_events = req.body.entry[0].messaging;
console.log("post")
for (i = 0; i < messaging_events.length; i++) {
event = req.body.entry[0].messaging[i];
sender = event.sender.id;
if (event.message && event.message.text) {
text = event.message.text;
sendTextMessage(sender, "Text received, echo: " + text.substring(0, 200));
}
}
res.sendStatus(200);
});
app.listen(port, function() {
console.log('Listening on port ' + port);
});
var token = "<token>";
function sendTextMessage(sender, text) {
messageData = {
text: text
}
request({
url: 'https://graph.facebook.com/v2.6/me/messages',
qs: { access_token: token },
method: 'POST',
json: {
recipient: { id: sender },
message: messageData,
}
}, function(error, response, body) {
if (error) {
console.log('Error sending message: ', error);
} else if (response.body.error) {
console.log('Error: ', response.body.error);
}
});
}
我忽略了此错误并启动了漫游器.我通过ngrok连接了Webhooks.我敢肯定,在Facebook上我设置的一切正确.但是我没有从Facebook发送消息信息到我的Webhook.]
I ignored this error and started the bot. Webhooks I connected via ngrok. I'm sure that on Facebook I set everything right.But I'm not getting the message information sent to my webhook from facebook.]
'{"object": "page", "entry": [{"messaging": [{"message": "TEST_MESSAGE"}]}]}'
这是错误行
推荐答案
尝试:
curl -H "Content-Type: application/json" -X POST "localhost:4000/" -d "{""object"": ""page"", ""entry"": [{""messaging"": [{""message"": ""TEST_MESSAGE""}]}]}"
这篇关于Facebook Messenger bot错误,位置0的JSON中出现意外令牌'的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
查看全文