Question

function mqtt_messsageReceived(topic, message, packet)
{
var nano = require("nano")("http://localhost:5984"); 

var http = require("http");
    var fields = message.toString().split("#");
    console.log('Topic=' +  topic + '  Message=' + message);
    const selectClient=peers.get().server;

    var server = http.createServer(function (request, response) {
 nano.db.save("mylibrary", function (err, body, header) { 
        if (err) { 
            response.writeHead(500, { "Content-Type": "text/plain" }); 
            response.end("Database creation failed. " + err + "\n"); 
        } else { 
            response.writeHead(200, { "Content-Type": "text/plain" }); 
            response.end("Database created. Response: " + JSON.stringify(body) + "\n"); 
        } 
    }); 
});  

console.log("Server running at http://i:5984/");    
}

运行此代码时，出现错误：

Error: Cannot find module 'promised-io/lib/promise'
    at Function.Module._resolveFilename (module.js:326:15)
    at Function.Module._load (module.js:277:25)
    at Module.require (module.js:354:17)
    at require (internal/module.js:12:17)
    at Object.<anonymous> (/home/broker1/Desktop/node_modules/couchdb/lib/couchdb.js:2:20)
    at Module._compile (module.js:410:26)
    at Object.Module._extensions..js (module.js:417:10)
    at Module.load (module.js:344:32)
    at Function.Module._load (module.js:301:12)
    at Module.require (module.js:354:17)

并且当我尝试安装此模块时出现另一个错误，因此我想更正此代码以使用node.js将数据存储在沙发上。

如何使用Node.js在CouchDB上存储数据

0 个答案: