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All right welcome back everyone.

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In the next few videos we're going to talk about deploying our express applications.

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Basically how do we get these apps that are currently running and they're working fine they're technically

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deployed using Cloud 9.

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We have a few RL You know when my camp server is running I have a U R L that I can send to my mom I

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can send it to my friends I can post it on Facebook and people can visit that application.

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But of course it's not really the same thing as having my app server somewhere running 24/7 on an Amazon

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server or on a Heroku server or on my own server.

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Basically anything other than Cloud Nine servers.

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Not that there's anything wrong with Cloud 9.

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It's just that it's not designed for actually deploying applications.

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Those deployments that we've been doing when we start our server when we run node apps.

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Yes that starts up a server on cloud 9 and it works fine.

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But as soon as Cloud 9 has any issues as soon as I stop that server I hit control-C or my workspace

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restarts then we run into problems.

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That application is no longer running.

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The other problem is that it's generally not a good idea to have one copy of your application that you're

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working on that is the same copy of the application that is being deployed or that's being served.

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So let's say that you know I want to add in a new feature I wanted to add in.

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I don't know Google Maps or I want to add in something involving some sending a text message whatever

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feature it is I would need to stop the server to actually do that.

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So I'd have to stop my Yelp camp app try things out because remember we have to restart the server for

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a lot of these changes to take effect.

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So then we have gaps in our service where if I want to try something out I want to debug something.

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I'm actually debugging it on the same copy of the code that everyone else sees.

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Whoever is using the application.

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So obviously that's a big issue as well.

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So what we're going to do is use a tool called Heroku and Heroku is basically just servers that you're

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renting out.

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It's a company sales force owns them actually.

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There's a bunch of options similar companies like Digital Ocean.

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There's one called node jitsu modulus modulo that there's hundreds of these companies out there.

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Heroku is probably the most well-known though and the main reason we're using it is that it has an ice

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free plan but it's also really really robust and powerful.

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Big companies use Heroku all the time as well.

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So it's not just you know amateur solution or something.

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So let's talk about what Heroku is what it is what they do what deploying is when you deploy an application

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all that you're doing is running it on someone else's server.

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Or it can be your own server as well but just a server.

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That's it.

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It's it's running on a server somewhere and it's just going 24/7.

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What we could do is just get our own server go out build a computer connected to the Internet and just

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have that sitting in the corner running 24/7.

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Of course that doesn't really make sense for this course and it actually doesn't make sense for a lot

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of companies that used to be.

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And if the only way of serving an application of deploying something.

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And then there came this huge huge surge or this tidal wave of companies that provide you know deployment

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and cloud services as a service.

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Things like Amazon AWOS Heroku all the other things all the other companies I mentioned earlier there

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are businesses that solely exist basically to rent you computer power correct you server space.

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So that's that's what we're doing here.

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When we're going to deploy to Heroku all that we have to do is get our application whatever that application

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is you yup camp or our blog app we're just trying to get it on to Heroku servers and then just start

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it there and that's it.

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Heroku will give us a you.

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We can customize that we can send it to reroute to our own custom domain can do whatever we want but

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the goal is just to have our application that works on this computer or in this workspace in cloud 9

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and do exactly what we did here except on another computer another server.

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So we're going to do that in the next few videos in the next video we're going to show you how to deploy

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a really simple simple application to route an express app yes.

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No database no mango no authentication none of that.

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And then I'll show you how to deploy Yelp camp.

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It is a little bit more complicated when you have to consider databases and security issues.

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So again we're going to start nice and simple.

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So in the next video we'll actually go about this process transferring code from this computer.

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This machine cloud 9 to HIEROCLES and making sure that it runs well and Heroku.

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And by the end of the next video you'll have a link that is actually deployed that you can share and

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that you don't have to worry about it going down