I wanted to know if anyone has given this a go and got it working?
http://lightswitchhelpwebsite.com/Blog/tabid/61/EntryId/182/Connecting-To-SignalR-With-LightSwitch-HTML-Client.aspx
Basically my issue is i cant open the file to begin with, whether it be Visual Studio 2012, 2013 or 2015, so I have followed the guide and used the files from the downloaded project for this error message to occur:
which is caused by this line under the sendmessage_execute function:
chat.server.send(screen.displayname, screen.message);
im hoping someone has got this working and could point out anything different from the user guide, heres what I have used/done:
Under the PROJECT.Server I have:
created a folder called SignalR with the file ChatHub.cs in
added the json2.js (both) and signalR (both) files to the scripts
folder
Under the Project.HTMLClient
added the json2.js (both) and signalR (both) files to the scripts
folder
referenced the scripts including the localhost in the default.htm file
Created a screen. called ChatScreen and added all the referenced code here from the guide online (3 strings and 1 button)
i also installed the Nu-GET as instructed
More research for this was required, I found this post which explains how to do it a lot easier and in an application for both 2013/2015, works a treat and can easily be adapted for other screens
https://blogs.msdn.microsoft.com/rmattsampson/2013/03/14/asp-net-signalr-and-lightswitch-vs-2012-update-2-vs-2013-and-later/
I have also managed to edit there block of code to list all messages in a string, this is not stored and refresh's each time but its now possible to have a conversation while on the same screen
var string;
myapp.ChatScreen.created = function (screen) {
string = "";
$(function () {
chat = $.connection.chatHub;
chat.client.broadcastMessage = function (message) {
string = string + message + ";";
screen.updates = string.split(';').join("\r\n");
console.log(string.split(';').join("\r\n"))
};
$.connection.hub.start()
.done(function () {
})
.fail(function () {
alert("Could not Connect! - ensure EnableCrossDomain = true");
});
});
};
It would be better practice using an array and displaying it this way but the code above demonstrates it works
Related
I am sending a request from my Meteor server to download a file via an API. I then want to upload that file to S3. I keep getting the following "NoSuchKey: The specified key does not exist." I initially thought it was maybe a problem with my AcessKey/SecretKey form AWS but after googling this for a while the only examples I could find of other people getting this error is when trying to download a file from S3.
Setting up cfs:s3
var imageStore = new FS.Store.S3("images", {
accessKeyId: "MyAcessKeyId", //required if environment variables are not set
secretAccessKey: "MySecretAcessKey", //required if environment variables are not set
bucket: "BucketName", //required
});
Images = new FS.Collection("images", {
stores: [imageStore]
});
Start file transfer from API and upload to S3
client.get_result(id, Meteor.bindEnvironment(function(err, result){ //result is the download stream and id specifies which file to download.
if (err !== null){
return;
}
var file = new FS.File(result);
Images.insert(file, function (err, fileObj) {
if (err){
console.log(err);
}
});
}));
Note: I was getting the following error so I added Meteor.bindEnvironment.
"Meteor code must always run within a Fiber. Try wrapping callbacks that you pass to non-Meteor libraries with Meteor.bindEnvironment."
Node.js example from API Documentation
client.get_result(id, function(err, result){
if (err != null) {
return;
}
file.writeFile(path.join('public', path.join('results', filename)), result, 'binary');
});
What ended up fixing the problem for me was moving part of the setup to the lib folder. Although I tried several different ways I was unable to get it to execute entirely on the server. It looks like the documentation was updated recently which states everything a bit more clearly. If you follow this setup it should eliminate the error. See the section titled Client, Server, and S3 credentials
https://github.com/CollectionFS/Meteor-CollectionFS/tree/master/packages/s3
Note: Make sure not to place you secret key is not in you lib folder as this is accessible from the client.
I started the meteor-testing tutorial, but the 2nd automatic generated test fails with:
TypeError: Cannot call method 'url' of undefined
So it seems that the client variable is not defined. Did anybody experience similar issues? (btw is there a way to debug this)
i'm using ubuntu 14.04 with
Meteor 1.2.0.2
node v4.0.0
xolvio:cucumber 0.19.4_1 CucumberJS for Velocity
Update:
Generated test code intests/cucumber/features/step_definitions/sample_steps.js:
// You can include npm dependencies for support files in tests/cucumber/package.json
var _ = require('underscore');
module.exports = function () {
// You can use normal require here, cucumber is NOT run in a Meteor context (by design)
var url = require('url');
// 1st TEST OK
this.Given(/^I am a new user$/, function () {
server.call('reset'); // server is a connection to the mirror
});
// 2nd TEST FAIL
this.When(/^I navigate to "([^"]*)"$/, function (relativePath) {
// process.env.ROOT_URL always points to the mirror
client.url(url.resolve(process.env.ROOT_URL, relativePath));
});
...
};
I was said to file an issue in the chimp repository, where I was pointed to the solution:
// 2nd TEST FAIL
this.When(/^I navigate to "([^"]*)"$/, function (relativePath) {
// REPLACE client with browser
browser.url(url.resolve(process.env.ROOT_URL, relativePath));
});
This is a short fix, but I'm not sure whether you should later rather use client (seems to be wrapper for different environments).
**Update: ** meanwhile this was fixed, no adaption necessary anymore
Im trying let the user Upload a txt file and then let him click a button "analyze" and then perform some analysis.
I have the app working locally, Im using FS.Collection and FileSystem however I had several problems deploying to meteor.com. Here is my collection:
FS.debug = true;
Uploads = new FS.Collection('uploads', {
stores: [new FS.Store.FileSystem('uploads')]
});
and here is how I try to read the uploaded file:
var fs = Npm.require('fs');
var readedFile = fs.readFileSync(process.env.PWD+'/.meteor/local/cfs/files/uploads/+file.copies.uploads.key, 'utf-8');
The above works in local but not after I deploy to meteor.com, in the debug messages I see something like this: Error: ENOENT, no such file or directory
So I do not know how to read the file when the app is deployed, how would you do it?, or do you think I should deploy the app to Amazon EC2? Im afraid to deploy to amazon and have the same problem...
Short example of using http to download a file that was uploaded via collectionFS.
var file = Uploads.findOne({ _id: myId }); // or however you find it
HTTP.get(file.url(),function(err,result){
// this will be async obviously
if ( err ) console.log("Error "+err+" downloading file"+myId);
else {
var content = result.content; // the contents of the file
// now do something with it
}
});
Note that you must meteor add http to get access to the http package.
This is probably the package you want:
https://github.com/tomitrescak/meteor-uploads
it has a nice UI too and much less trouble than FSCollection.
I have a Visual Studio 2013 solution with a Web API project and a Web UI project (using Angular). I am using IIS Express.
Is there a way to set these projects up so that the Angular code can call the Web API project without hard-coding in the localhost and port number?
return $http.get("http://localhost:1561/api/products")
.then(function (response) {
return response.data;
});
If I hard-code localhost:1561 instead of just using the "/api/products" style I have to manually change the code before deploying to production and change it back to run it during development.
Is there an easier way?
Thanks!
var rootPath;
if (location.hostname === 'localhost') {
rootPath = 'http://localhost:1561';
} else {
rootPath = 'http://' + location.hostname;
}
return $http.get(rootPath + '/api/products')
.then(function (response) {
return response.data;
});
I actually wrote a simple utility method that returns the absolute URL so in your code you just have to type the relative URL. Below is this method which you should be able to call from your JS passing the relative URL (i.e. /api/products) or by converting it into a helper extension method...
// Code
public static string ToAbsoluteUrl(string relativeUrl)
{
if (string.IsNullOrEmpty(relativeUrl))
return relativeUrl;
if (HttpContext.Current == null)
return relativeUrl;
if (relativeUrl.StartsWith("/"))
relativeUrl = relativeUrl.Insert(0, "~");
if (!relativeUrl.StartsWith("~/"))
relativeUrl = relativeUrl.Insert(0, "~/");
var url = HttpContext.Current.Request.Url;
var port = url.Port != 80 ? (":" + url.Port) : String.Empty;
return String.Format("{0}://{1}{2}{3}",
url.Scheme, url.Host, port, VirtualPathUtility.ToAbsolute(relativeUrl));
}
From what I understand, it is not possible to do what I was attempting to do. Here are the options:
1) Use IIS on the local machine. That way you can set up the paths/virtual directories as necessary. This also makes it easier to call the API from other browsers during debugging. Note: This does require that you then run Visual Studio in admin mode from this point forward.
2) Put the two projects into one. For me this was not a valid option because I am need to deliver the UI code completely separate from the API code.
Hope this helps others trying to work with Angular and Web API.
i'm working on a simple app based on meteor and MeteorStreams.
The aim is simple :
one user will click on a button to create a room
other users will join the room
those users can emit streams with simple message
the creator will listen to that message and then display them
In fact : message from other users are sent (log in server script), but the creator doesn't receive them.
If i reload the page of the creator, then it will get messages sent from other user.
I don't really understand why it doesn't work the first time.
I use meteor-router for my routing system.
Code can be seen here
https://github.com/Rebolon/MeetingTimeCost/tree/feature/pokerVoteProtection
for the client side code is availabel in client/views/poker/* and client/helpers
for the server stream's code is in server/pokerStreams.js
Application can be tested here : http://meetingtimecost.meteor.com
The creator must be logged.
If you have any idea, any help is welcome.
Thanks
Ok, Ok,
after doing some debugging, i now understand what is wrong in my code :
it's easy in fact. The problem comes from the fact that i forgot to bind the Stream.on event to Deps.autorun.
The result is that this part of code was not managed by reactivity so it was never re-run automatically when the Session changed.
The solution is so easy with Meteor : just wrap this part of code inside the Deps.autorun
Meteor.startup(function () {
Deps.autorun(function funcReloadStreamListeningOnNewRoom () {
PokerStream.on(Session.get('currentRoom') + ':currentRoom:vote', function (vote) {
var voteFound = 0;
// update is now allowed
if (Session.get('pokerVoteStatus') === 'voting') {
voteFound = Vote.find({subscriptionId: this.subscriptionId});
if (!voteFound.count()) {
Vote.insert({value: vote, userId: this.userId, subscriptionId: this.subscriptionId});
} else {
Vote.update({_id: voteFound._id}, {$set: {value: vote}});
}
}
});
});
});
So it was not a Meteor Streams problem, but only my fault.
Hope it will help people to understand that outside Template and Collection, you need to wrap your code inside Deps if you want reactivity.