Question

这是我的代码----

var nsq = require('nsqjs');
var r = require('rethinkdb');
var nsqvar = (process.env.NSQD_RETH || "localhost:4161").split(",");
    var p = r.connect({host:'localhost', port:8080, db:'test', authKey:''});{
        p.then(function(conn) {
            console.log("Succesfull connection")
        }).error(function(error) {
            console.log("Error at  connection")
        })
        // Event Reader functionality inside connect callback
        var eventreader;
        eventreader = new nsq.Reader('hello_topic', 'hello_channel', {
            lookupdHTTPAddresses: nsqvar
        });
        eventreader.connect();
        eventreader.on('message', function (msg) {
            // Now we have access to the connection
            r.table('sprinkle_nsq_test').insert(msg.json()).run(conn);
            console.log('Received message [%s]: %s', msg.id, msg.body.toString());
            msg.finish();
            console.log(msg);
        });
    }

从终端我试图插入

curl -d '{"id": "712", "name": "Douglas Adams""type "casdasdasomedy"}' 'http://127.0.0.1:4151/put?topic= hello_topic'

在nsq收到消息但是在nodejs程序处显示抛出新错误（＆＃34;消息中的无效JSON＆＃34;）; ^ 错误：消息中的JSON无效

并且同时消息不存储在rethinkdb。

Answer 1

看起来错误消息是正确的 - 您的JSON无效。

尝试通过在线JSON validator / viewer复制并粘贴它，它将无效。

我在下面清理过它。希望现在一切正常。

{"id": "712", "name": "Douglas Adams", "type": "casdasdasomedy"}

Answer 2

您的代码中存在一些错误（至少在RethinkDB方面）。这是一个带注释的固定解决方案（这可能会或可能不会解决您的问题）：

var nsq = require('nsqjs');
var r = require('rethinkdb');
var nsqvar = (process.env.NSQD_RETH || "localhost:4161").split(",");
// Connect to the client driver port 28015
var p = r.connect({ host:'localhost', port:28015, db:'test' });

p.then(function(conn) {
    // Wait until the database is connected
    console.log("Succesfull connection");

    // Event Reader functionality inside connect callback
    var eventreader;
    eventreader = new nsq.Reader('hello_topic', 'hello_channel', {
        lookupdHTTPAddresses: nsqvar
    });
    eventreader.connect();
    eventreader.on('message', function (msg) {
        // Make sure msg.json() is actually valid json
        if (typeof msg === 'object' && msg !== null) {
          throw new TypeError('`msg` is already and object. It doesnt need to be convert to json');
        }
        var json = msg.json();
        if (typeof json !== 'object' && msg !== null) {
          throw new TypeError('`msg.json()` is not an object and cant be inserted into the database.');
        }
        // Now we have access to the connection
        r.table('sprinkle_nsq_test').insert(msg.json()).run(conn)
          .then(function () {
            // Wait until RethinkDB is done inserted the message to call `.finish`
            console.log('Received message [%s]: %s', msg.id, msg.body.toString());
            msg.finish();
            console.log(msg);
          });
    });
}).error(function(error) {
    console.log("Error at connection to the database");
});

消息中的JSON无效

2 个答案: