I have array with data (objects):
var data = [
{"name":"Jon",
"age":22},
{"name":"Ioan",
"age":42},
{"name":"Jem",
"age":33},
... other more then 100 items
]
var http = require('http');
var options = {
hostname: 'localhost',
port: 80,
path: '/users',
method: 'POST',
headers: {
'Content-Type': 'application/json'
} };
//I create following function:
function sendData(data) {
var req = http.request(options, function(res) {
console.log('STATUS: ' + res.statusCode);
console.log('HEADERS: ' + JSON.stringify(res.headers));
res.setEncoding('utf8');
res.on('data', function (chunk) {
console.log('BODY: ' + chunk);
});
});
req.write(JSON.stringify(data));
req.end();
}
//end try send for each array item:
for (var i=0; i<data.length;i++) {
sendData(data[i]);
}
But sended only first item from array.
How I can send each item as POST request?
May be the best solution may suggest.
If requests will execute as async it will be better.
UPDATE:
I find better solution with async module.
Add following code:
var async = require("async");
var tasks = [];
for (i=0;i<result.length;i++) {
tasks.push(sendRequest(data[i]));
}
async.parallel(tasks, function(){
console.log("done");
});
And all request wat sended async.
Are you using jQuery?
If so you can use the $.post method along with a $.each method.
You could do something like
$.each(data, function(index, val) {
JSON.stringify(val);
$.post(url, val)
.done(function (data) {
alert("got " + data + " back");
});
});
Not the most concise, but it'll do the trick, and it'll do it asynchronously.
full dox here:
for $.post
for $.each
Related
How do I call an API in Node.Js with an API Key and a HTTPS: Request? Here's What I'm trting to do but to no avail. Also where should I put the API Key? I haven't put it here.
var options = {
host: 'demo4444447.mockable.io',
port: 80,
method: 'GET',
path: '/alexa-skill.json'
}
var req = http.request(options, res => {
res.setEncoding('utf8');
var returnData = "";
res.on('data', chunk => {
returnData = returnData + chunk;
});
res.on('end', () => {
var result = JSON.parse(returnData);
//callback(result);
this.response.speak(`The current temperature is ${result.temperature} degrees with a humidity of ${result.humidity} and a cloud cover of ${result.cloudcover}.`);
this.emit(':responseReady');
});
});
req.end();
API keys are normally sent as headers. Example:
var options = {
host: 'demo4444447.mockable.io',
port: 80,
method: 'GET',
headers: {'headername': 'headervalue'},
path: '/alexa-skill.json'
}
You'll need to know the header name though, e.g. 'x-api-key'.
My code currently makes a request to an external API which then responds with a JSON object. I currently log that to my console so no problems on that end. I need to reference the object externally however so I can display it on my pug page to the client.
The following external javascript file 'server2.js' is in the same location as app.js.
function DemoApiNgClient() {
var FIRST_INDEX = 0;
var DEFAULT_ENCODING = 'utf-8';
var DEFAULT_JSON_FORMAT = '\t';
var options = {
hostname: 'api.betfair.com',
port: 443,
path: '/exchange/betting/json-rpc/v1',
method: 'POST',
headers: {
'X-Application': '',
'Accept': 'application/json',
'Content-type': 'application/json',
'X-Authentication': 'emTox++='
}
}
console.log("Get horse racing event id");
// Define Horse Racing in filter object
var jsonRequest = '{"jsonrpc":"2.0","method":"SportsAPING/v1.0/' + 'listEventTypes' + '", "params": {"filter":{}}, "id": 1}'
var str = '';
var req = https.request(options, function (res) {
res.setEncoding(DEFAULT_ENCODING);
res.on('data', function (chunk) {
str += chunk;
});
res.on('end', function (chunk) {
// On resposne parse Json and check for errors
response = JSON.parse(str);
console.log('Here is our response! ' + util.inspect(response, {showHidden: false, depth: null}))
});
});
// Send Json request object
req.write(jsonRequest, DEFAULT_ENCODING);
req.end();
req.on('error', function (e) {
console.log('Problem with request: ' + e.message);
});
}
I have tried the exports module for nested functions however the res.on block isn't necessarily a function so it won't work doing it that way.
End goal is displaying the response object from the external API in pug on client side, and not being able to reference the object is my only sticky point, everything else works.
I am trying to make a SOAP call through node.js and am getting the below error:
ReferenceError: $http is not defined
Here is my code, everything else appears to work until it fails at the last line:
//Import the `assert` module to validate results.
var assert = require('assert');
var SoapRequestXML='<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:_5="https://clients.mindbodyonline.com/api/0_5">\r\n' +
'<soapenv:Header/>\r\n' +
'<soapenv:Body>\r\n' +
'<_5:GetClasses>\r\n' +
'<_5:Request>\r\n' +
'<_5:SourceCredentials>\r\n' +
'<_5:SourceName>SOURCECREDENTIALS</_5:SourceName>\r\n' +
'<_5:Password>PASSWORD</_5:Password>\r\n' +
'<_5:SiteIDs>\r\n' +
'<_5:int>-99</_5:int>\r\n' +
'</_5:SiteIDs>\r\n' +
'</_5:SourceCredentials>\r\n' +
'</_5:Request>\r\n' +
'</_5:GetClasses>\r\n' +
'</soapenv:Body>\r\n' +
'</soap:Envelope>';
var options = {
//Define endpoint URL.
url: "https://api.mindbodyonline.com/0_5/ClassService.asmx",
//Define body of POST request.
body: SoapRequestXML,
//Define insert key and expected data type.
headers: {
'POST': 'https://api.mindbodyonline.com/0_5/ClassService.asmx?wsdl HTTP/1.1',
'Accept-Encoding': 'gzip,deflate',
'Content-Type': 'text/xml;charset=UTF-8',
'SOAPAction': '"http://clients.mindbodyonline.com/api/0_5/GetClasses"',
'Content-Length': '594',
'Host': 'api.mindbodyonline.com',
'Connection': 'Keep-Alive',
'User-Agent': 'Apache-HttpClient/4.1.1 (java 1.5)'
}
};
//Define expected results using callback function.
function callback(error, response, body) {
//Log status code to Synthetics console.
console.log(response);
//Verify endpoint returns 200 (OK) response code.
assert.ok(response.statusCode == 200, 'Expected 200 OK response');
//Parse JSON received from Insights into variable.
//
var parseString = require('xml2js').parseString;
var XMLReSULT = response.body;
parseString(XMLReSULT, function (err, result) {
console.dir(result);
});
//Log end of script.
console.log("End reached");
}
//Make GET request, passing in options and callback.
$http.post(options, callback);
Any help is appreciated, I am very new at this.
Like previous comments implied, $http is not defined, and you cant use var $http = require('http') because nodes http does not have a post method. You will need to do a little refactoring. I think you're looking for something like this.
var assert = require('assert')
var http = require('http')
var parseString = require('xml2js').parseString;
var SoapRequestXML='<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:_5="https://clients.mindbodyonline.com/api/0_5">\r\n' +
'<soapenv:Header/>\r\n' +
'<soapenv:Body>\r\n' +
'<_5:GetClasses>\r\n' +
'<_5:Request>\r\n' +
'<_5:SourceCredentials>\r\n' +
'<_5:SourceName>SOURCECREDENTIALS</_5:SourceName>\r\n' +
'<_5:Password>PASSWORD</_5:Password>\r\n' +
'<_5:SiteIDs>\r\n' +
'<_5:int>-99</_5:int>\r\n' +
'</_5:SiteIDs>\r\n' +
'</_5:SourceCredentials>\r\n' +
'</_5:Request>\r\n' +
'</_5:GetClasses>\r\n' +
'</soapenv:Body>\r\n' +
'</soap:Envelope>';
var options = {
hostname: 'api.mindbodyonline.com',
port: 80,
path: '/0_5/ClassService.asmx',
method: 'POST',
headers: {
'Accept-Encoding': 'gzip,deflate',
'Content-Type': 'text/xml;charset=UTF-8',
'SOAPAction': '"http://clients.mindbodyonline.com/api/0_5/GetClasses"',
'Content-Length': '594',
'Connection': 'Keep-Alive',
'User-Agent': 'Apache-HttpClient/4.1.1 (java 1.5)'
}
}
var req = http.request(options, (res) => {
var data;
res.setEncoding('utf8');
res.on('data', (chunk) => {
data += chunk;
});
res.on('end', () => {
parseString(data, function(err, result) {
console.log(result);
});
console.log('End reached')
});
});
req.on('error', (e) => {
console.log(`problem with request: ${e.message}`);
});
req.write(SoapRequestXML);
req.end();
Now I have a question like this:
I created a server with node.js ,and the server have receive a ajax request.With the data received from ajax ,node.js send a post request to another server. Now I have got the data from another server and the main question is how to send the data back to ajax, I have tried many ways but it does not work.
Can somebody help me on this issue?
here is my code
====ajax request
$.ajax({
type: "POST",
url: 'http://localhost:8888', // 这里要改成服务器的地址
data: userData,
success: function (data) {
console.log(data);
}
})
====
http.createServer(function (req, res) {
if (req.url == '/') {
var data = '';
var imdata;
util.log(util.inspect(req));
util.log('Request recieved: \nmethod: ' + req.method + '\nurl: ' + req.url);
req.on('data', function (chunk) {
imdata = querystring.parse(data += chunk);//转成对象的格式
})
req.on('end', function () {
var myIm = new ServerApi('e782429e48cb99f44b9c5effe414ac72', 'b88b9f2a2f74');
myIm.createUserId(imdata, function (err, data) {
//createUesrId is a api to deal with post request
console.log(data);//the data have received from another server,and now i do not know how to return the data to ajax success function
})
})
====the api to create user id with post requeset
ServerApi.prototype.postDataHttps = function (url, data, callback) {
this.checkSumBuilder();
var urlObj = urlParser.parse(url);
var httpHeader = {
'AppKey': this.AppKey,
'Nonce': this.Nonce,
'CurTime': this.CurTime,
'CheckSum': this.CheckSum,
'Content-Type': 'application/x-www-form-urlencoded;charset=utf-8',
'Content-Length': Buffer.byteLength(data)
};
var options = {
hostname: urlObj.hostname,
port: 80,
path: urlObj.path,
method: 'POST',
headers: httpHeader
};
var that = this;
var req = http.request(options, function (res) {
res.setEncoding('utf8');
console.log("statusCode: ", res.statusCode);
console.log("headers: ", res.headers);
res.on('data', function (chunk) {
if (Object.prototype.toString.call(callback) === '[object Function]') {
var result = JSON.parse(chunk);
callback.call(that, null, result);
return result;
}
});
});
var postData = querystring.stringify(data);
req.write(postData);
req.end(data);
req.on('error', function (err) {
if (Object.prototype.toString.call(callback) === '[object Function]') {
callback.call(that, err, null);
}
});
}
ServerApi.prototype.createUserId = function (data, callback) {
var url = 'https://api.netease.im/nimserver/user/create.action';
var postData = {
'accid': data['accid'] || '',
'name': data['name'] || '',
'props': data['props'] || '',
'icon': data['icon'] || '',
'token': data['token'] || ''
};
this.postDataHttps(url, postData, callback);
}
On your server code. The one with http.createServer(function (req, res) {...}
Notice how you got a req and res parameter?
So on event end, that is req.on('end' function... Right after the line where you got a comment saying the 'data is received from another server', you can do something like;
res.writeHead(/*HTTP_RESPONSE_CODE_FOR_AJAX_CLIENT=*/200);
res.end('Done');
to send a response back to your client with HTTP response code = 200 and the message in the HTTP body would be 'Done'. Note that, there are quite a number of things you can do with the response object, you may want to see the documentation for more information.
See:
https://nodejs.org/api/http.html#http_response_writehead_statuscode_statusmessage_headers
OR
(中文版)
http://nodeapi.ucdok.com/api/http.html#http_class_http_serverresponse_7847
Quick explanation in Chinese：
在服务器的代码req.on('end'...那里， 你可以用resobject打回给你的AJax client.
I have a node.js server and I'm making GET requests.
The arguments passed using Python's requests and JavaScripts's request are received properly.
// Python
requests.get(url, data=data)
// JS
request.get({url: url, form:form}, function(){})
But the data is not received when I make the request from a browser like: url?a=1&b=2.
How do I fix it?
This is the function that I'm using to parse the form data:
function extractData(request, response, callback, options) {
var jsonString = '';
request.on('data', function(data) {
jsonString += data;
});
request.on('end', function() {
data = qs.parse(jsonString);
callback(request, response, data, options);
});
}
data is blank when I pass the arguments from URL.
I hope this will be helpful and below code is working to me
var options = {
host: 'services.com',
path: '/app/server.js/index/',
method: 'POST',
headers: {
'Content-Type': 'application/json; charset=utf-8',
'Content-Length': data.length
}
};
var req = https.request(options, function(res) {
var msg = '';
res.setEncoding('utf8');
res.on('data', function(chunk) {
msg += chunk;//'chunk' response from server
if(chunk != "available")
{
var mail = {
from: "abc#gmail.com",
to: "ddd#gmail.com",
subject: "Alert! from production server",
html: "<p>Hi Team,</p> <p>Alert! production server is down.</p><p>Thanks,<br/>Maintenance Team</p>"
};
transporter.sendMail(mail, function(error, response){
if(error){
console.log(error);
//res.send({ "result" : "failure" });
}else{
console.log("Message sent: " + response);
//res.send({ "result" : "success" });
}
});
}
});
res.on('end', function() {
//console.log(JSON.parse(msg));
console.log(msg);
});