I'm trying to just get a console app to fire up as a web server so if I browse to locahost:3000 in a browser I should see a blank page with HELLO WORLD! written on it, but with the following all I get is a repeated message in the console panel 'AcceptEx failed: 10022':
import 'dart:io';
void main() {
HttpServer.bind(InternetAddress.ANY_IP_V4, 3000).then((server){
server.listen((HttpRequest request) {
request.response.write('''
<html>
<head>
</head>
<body>
<div>
HELLO WORLD!
</div>
</body>
</html>
''');
});
});
}
Update:
I was setting it to ANY_IP_V6 which was wrong my system doesnt have that, setting it to ANY_IP_V4 does seem to help along the issue, but now it just ends up getting to a point where it complains of a null reference exception Breaking on exception: The null object does not have a method 'cancel'. from noSuchMethod in class Object.
Try replacing InternetAddress with localhost, and make sure to close the response. Like this:
HttpServer.bind('127.0.0.1', 3000).then((server){
server.listen((HttpRequest request) {
request.response.write('''
<html>
<head>
</head>
<body>
<div>
HELLO WORLD!
</div>
</body>
</html>
''');
request.response.close();
});
});
Related
This code display the textarea tag for console.log(abc) which is the ID, but for console.log(text) shows an error. Can anyone explain how value for console.log(abc) is getting executed and not for text class.
I haven't pass any argument to callback function. so how even for console.log(abc) it give an output.
Thank you.
document.querySelector(".text").addEventListener("keydown", () => {
console.log(abc);
//console.log(event);
console.log(text);
});
<!DOCTYPE html>
<html lang="en">
<head>
<title>demo</title>
</head>
<body>
<textarea name="ab" class="text" id="abc" cols="30" rows="10"></textarea>
<script src="script.js"></script>
</body>
</html>
The code segment document.querySelector("#abc") gets the html element with an id of "abc".
The code segment:
.addEventListener("keydown", () => {
console.log(abc);
})
is an event listener that listens for a keydown event and prints the html tag with the id of "abc"
Hi have some trouble getting started with the following code:
<html>
<head>
<script src="https://echarts.apache.org/examples/vendors/echarts/echarts.min.js?_v_=1574102238076"></script>
<script src="https://echarts.apache.org/examples/vendors/echarts/map/js/world.js?_v_=1574102238076"></script>
</head>
<body>
<div id="eChartVersionIt_33_0" style="height: 535px; width: 935px;" ></div>
<script>
function distrLocaEu(container, commandName) {
var myChart = echarts.init(document.getElementById(container));
option = {
backgroundColor: '#111',
geo: {
map: 'world',
},
}
myChart.setOption(option);
};
distrLocaEu('eChartVersionIt_33_0','ChartDistrLocaEu');
</script>
</body>
</html>
This should render an empty map of the world.
Indeed, copy/pasting it in JsFiddle works correctly.
If I put in a normal HTML file, both Firefox and Chrome show up a VERY corrupted world
Am I missing something very stupid?
figured it out. I was referring the libs using https while in dev mode (http)
I have a simple Meteor app just the basic meteor create test. I want to be able to route traffic to the "/" directory to a template.
I want to be able to route data from a facebook web-hook to a simple js response.
My issue is that when I fire the web-hook URL using postman it returns HTML and not my response.
I've tried many different options for other posts I have read but now have the most basic version to just get it working.
Here is the code I've used
main.html
<head>
<title>test</title>
</head>
<body>
</body>
<template name="home">
<form class="new-message">
<input type="text" name="message" placeholder="Testing">
</form>
</template>
main.js:
import { Meteor } from 'meteor/meteor';
import { Router } from 'meteor/iron:router';
import { Template } from 'meteor/templating';
import './main.html';
Router.route('/', function () {
this.render('home');
});
Router.route('/webhooks/facebook', function() {
var request = this.request;
var response = this.response;
response.end('webhook was called');
}, {
where: 'server'
});
All other files are exactly how they are created with meteor create.
I'm on Meteor version 1.8.1
I'm using postman to test the web-hook this is the created GET URL:
https://------.ngrok.io/webhooks/facebook?hub.verify_token=mytoken&hub.challenge=1234567&hub.mode=subscribe
code omitted to keep ngrok from getting slammed.
This is the response I'm getting:
<html>
<head>
<link rel="stylesheet" type="text/css" class="__meteor-css__"
href="/merged-stylesheets.css?hash=6b1f9f6fb78291ae58da8ec4f36476931155453c">
<title>simplechat</title>
</head>
<body>
<script type="text/javascript">
__meteor_runtime_config__ = JSON.parse(decodeURIComponent("%7B%22meteorRelease%22%3A%22METEOR%401.8.1%22%2C%22meteorEnv%22%3A%7B%22NODE_ENV%22%3A%22development%22%2C%22TEST_METADATA%22%3A%22%7B%7D%22%7D%2C%22PUBLIC_SETTINGS%22%3A%7B%7D%2C%22ROOT_URL%22%3A%22http%3A%2F%2Flocalhost%3A3000%2F%22%2C%22ROOT_URL_PATH_PREFIX%22%3A%22%22%2C%22autoupdate%22%3A%7B%22versions%22%3A%7B%22web.browser%22%3A%7B%22version%22%3A%22b22f1ad86c0a904c992885256b7de72ed2863e1d%22%2C%22versionRefreshable%22%3A%22a580e09175421ec6994fc6da61a0413f3a15d2b1%22%2C%22versionNonRefreshable%22%3A%22fc4ded0006de942fe57524f94d500abeb4569d6f%22%7D%2C%22web.browser.legacy%22%3A%7B%22version%22%3A%222571a76ffc344fbc5b40ade303255cbbc59e2682%22%2C%22versionRefreshable%22%3A%22a580e09175421ec6994fc6da61a0413f3a15d2b1%22%2C%22versionNonRefreshable%22%3A%22dc1e886b7786e303655c010220e9f502e82dcf1c%22%7D%7D%2C%22autoupdateVersion%22%3Anull%2C%22autoupdateVersionRefreshable%22%3Anull%2C%22autoupdateVersionCordova%22%3Anull%2C%22appId%22%3A%22zqskgg1xifoj.hlnqbjmcma6f%22%7D%2C%22appId%22%3A%22zqskgg1xifoj.hlnqbjmcma6f%22%2C%22isModern%22%3Afalse%7D"))
</script>
<script type="text/javascript" src="/packages/meteor.js?hash=857dafb4b9dff17e29ed8498a22ea5b1a3d6b41d"></script>
<script type="text/javascript" src="/packages/meteor-base.js?hash=29010b127daf4ebacaaf9db9b8a61487e57d7d86">
</script>
<script type="text/javascript" src="/packages/mobile-experience.js?hash=2751f9ec11102d1106042c462b340c3fcfcb1990">
</script>
<script type="text/javascript" src="/packages/modules-runtime.js?hash=d3c3e5d67c95f97a60888bda7373292efad3be5e">
</script>
<script type="text/javascript" src="/packages/modules.js?hash=e8b7455d5562fec1444a3c6882cdc6639055cfca"></script>
<script type="text/javascript" src="/packages/modern-browsers.js?
<script type="text/javascript" src="/packages/autoupdate.js?hash=6d56c0f3a885390c688b4f3f893d96d1280fd0ee"></script>
---- Cut out all of the other script calls to keep this short -----
<script type="text/javascript" src="/app/global-imports.js?hash=1f8a1ae2e343994912f72f1dc6eec1ca7df24cae"></script>
<script type="text/javascript" src="/app/app.js?hash=70cfa37cd2f85e533f69d7312d02ef8984eae01a"></script>
</body>
</html>
So basically it returns HTML.
I'm sure I'm missing something simple.
Thanks in advance for you help. Usually I wait till I have exhausted all other options before posting here. And I'm sure I have tried every other example given here on StackOverflow.
My desired result is simple to just return a HTTP response "webhook was called" instead of the HTML garbage.
You could use somethings like this :
Router.map(function(){
this.route("routeName", {path: "/url/:param1/:optionalParam?,
where: "server",
action: function(){
var param = this.params.param1;
this.response.writeHead(200, {
'Content-Type': 'application/json',
'Access-Control-Allow-Origin': '*'
});
//authenticate call and decrypt body
if (this.request.method == 'POST') {
//do something
}
if (this.request.method == 'GET') {
//do something
}
}
});
this.route("abc", {path: "/api/get/user/activity/:temp1",
where: "server",
action: function(){
//proceed as above
}
});
});
For help, read through https://iron-meteor.github.io/iron-router/#server-routing
The router file should be saved inside the server folder (for server-side routes)
Haven't used iron route in a long time but from what I remember you want to change your server side route to the following as it is for restful routes.
Router.route('/webhooks/facebook', { where: 'server' })
.get(function () {
// GET
})
.post(function () {
// POST
})
.put(function () {
// PUT
})
For others who have been struggling getting both server and client routes to work on the same Meteor app here is the solution.
Iron routers newest version requires all server side routes to be on the server side and you must fire them from the startup.
All client routes are added on the client side and included in the main.js on the client side.
My simple test was this:
meteor create test
Then in clients/main.html replace the current code and add a simple template as follows:
<head>
<title>newroutetest</title>
</head>
<body>
</body>
<template name="home">
<h1>Home</h1>
</template>
Then in the client/main.js add your client routes as follows:
import { Template } from 'meteor/templating';
import './main.html';
Router.route('/', {
template: 'home'
});
Now we setup the server side route in the file server/main.js you add the route in the startup section as follows:
import { Meteor } from 'meteor/meteor';
Meteor.startup(() => {
Router.route('/webhook', function () {
var req = this.request;
var res = this.response;
res.end('hello from the server\n');
}, {where: 'server'});
});
That's It
I hope this helps others who have been struggling with this.
I am trying to learn the basics of server side Dart. When I hit the submit element on the HTML page, the screen is cleared and replaced with "hello." I am trying to keep all elements in place, and put the "hello" in the div place. I have not found any basic documentation on this, so I may be missing a lot here. Is there a straightforward way to do this?
Here is the Server code:
import 'dart:io';
Future main() async {
var server = await HttpServer.bind(
InternetAddress.loopbackIPv4,
8080,
);
await for (HttpRequest request in server) {
request.response
..write("hello")
..close();
}
}
Here is the HTML:
<form action="http://localhost:8080" method="GET">
<input type="text" id="name" value="name">
<input type="submit" value="submit">
</form>
<div id="output"></div> // I want the "hello" to go here
It's quite common to build web applications that pull in data from other web applications, initiated by logic that performs HTTP calls to third party services.
lets look at how we can use the inbuilt HttpRequest classes to make HTTP calls to external services.
index.html
<!DOCTYPE html>
<html>
<head>
<title>A Minimalist App</title>
</head>
<body>
<div id="output">Hi</div> // I want the "hello" to go here
<script type="application/dart" src="main.dart"></script>
<script src="packages/browser/dart.js"></script>
</body>
</html>
main.dart
import 'dart:html';
void main() {
var response = await HttpRequest.getString('http://localhost:8080')
querySelector('#output').text = response;
}
For more info visit here
Thanks. :) , hope it helps.
I am new to jquery mobile, and am having problems getting content I have inserted dymically using pageinit to display on the first time of the form response page. It displays on subsequent refreshes of the page. I also don't want the content to cache.
I need to use querystring values like ?blah=1&blah=2 as I use these in my call to an external json file.
How should I be doing this? If I use rel="external", and setting ajax to false, I have problems with issues on android. So using pageinit in the header, how do I make the dynamically loaded content (in the example, the time in seconds) in the 2nd page display first time round?
I have simplified the problem into test pages below.
Expected behaviour. When you click on the submit button of the form you go through to the 2nd page which should display the no of seconds taken from datetime
Actual behaviour. The seconds/time does not display on the 2nd page until the page is refreshed.
Elsewhere, I have come across the suggestion to put the pageinit code into the div itself, however this has caused the content to cache on android (ie the no of seconds remains the same), so I don't want to do this.
Any ideas on how I should approach this would be much appreciated
Sample code
=======
Page 1 - form
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="http://code.jquery.com/mobile/1.0.1/jquery.mobile-1.0.1.min.css" />
<script src="http://code.jquery.com/jquery-1.6.4.min.js"></script>
<script src="http://code.jquery.com/mobile/1.0.1/jquery.mobile-1.0.1.min.js"></script>
<script src="/scripts/myinit.js"></script>
</head>
<body>
<div data-role="page" id="page1" data-add-back-btn="true">
<div data-role="content" data-theme="b">
<form action="page_2.htm" method="GET" id="form1" name="form1">
<input type="hidden" name="seconds" value="">
<div class="ui-block-b"><button type="submit" data-theme="a">Submit</button></div>
</form>
</div>
</div>
</body>
</html>
===
Page 2 form response page
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="http://code.jquery.com/mobile/1.0.1/jquery.mobile-1.0.1.min.css" />
<script src="http://code.jquery.com/jquery-1.6.4.min.js"></script>
<script src="http://code.jquery.com/mobile/1.0.1/jquery.mobile-1.0.1.min.js"></script>
<script src="/scripts/myinit.js"></script>
</head>
<body>
<div data-role="page" id="page2" data-add-back-btn="true">
<div id="job" data-role="content">
</div>
</div>
</body>
</html>
===
custom javascript file called /scripts/myinit.js (included in both pages above)
$('#page1').live('pageinit', function(event) {
var seconds = new Date().getTime();
$('input[name=seconds]').val(seconds);
});
$('#page2').live('pageinit', function(event) {
var querystring = location.search.replace( '?', '' ).split( '&' );
var queryObj = {};
for ( var i=0; i<querystring.length; i++ ) {
var name = querystring[i].split('=')[0];
var value = querystring[i].split('=')[1];
queryObj[name] = value;
}
var seconds = queryObj["seconds"];
$('#job').append("seconds=" + seconds);
});
try changing pageinit by pageshow. i had the same problem and it worked for me
Link to the external file like this:
HTML --
I'm a Link
JS --
$(document).delegate('#external-link', 'click', function () {
$.mobile.changePage('/path/to/file.html', { reloadPage : true });
return false;
});
Setting the reloadPage option for the changePage() function will allow the external page to be refreshed rather than loading the cached version. Since the external page will be refreshed, the pageinit code for it will run when it's initialized and your code should function properly.
Documentation: http://jquerymobile.com/demos/1.1.0-rc.1/docs/api/methods.html