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Hey everybody what's going on this is Caleb with slopes dot com and in this video we're going to get

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into the code.

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We're going to start basically by requesting to purchase our subscription that we just made in iTunes

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Connect.

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So go ahead and pull open your X code project that you have been working in.

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And first we're going to dive into the IAP service and I want to basically just show you everything

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that's in there and explain what it's doing.

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So select IAP service and basically what's going on and I already touched on this a bit but when the

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app loads it's loading all of our IP products from iTunes and you can follow the other course if you

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want to see how this is done.

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But basically we have a function that we can use to attempt a purchase with a certain product index.

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Right.

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And when we set up this project we created some constants and these are my two other in-app purchases.

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But we need to create a constant that's going to point to our in-app purchases from iTunes Connect.

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And if you remember that that ID is Comcast IP course meal time monthly.

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So I'm actually going to copy that and then create a new constant here.

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So go ahead and type let IAP

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mealtime monthly sub and set that to be equal to conduct IAP course meal time monthly.

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Of course as a string like so.

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And now this constant is what we're going to use as an identifier to load our meal time monthly subscription.

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So go ahead and go into your IAP service and this is where we basically take all those product IDs and

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we convert them into a set of type string.

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And then we pass that into our function to request the products from iTunes Connect.

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So we're going to actually go ahead and add that ID into this array of IDS just to begin with.

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So go ahead and put a comma and type IAP mealtime monthly sub and now it's going to add that as a product

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ID.

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Okay that's pretty cool.

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So now that we have that as a product ID it's going to go ahead and get passed through when we call

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product request to start.

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Basically what happens is all of these IDs are shot up to iTunes and if they come back as valid products

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they get added to our products array here which up at the top you can see is an array of store kit product

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Eskay product.

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And basically once that array is full we can attempt to purchase for a particular item.

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Okay.

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Now we can use that products array and we can pull out the index of a certain item so maybe the first

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index is hied adds.

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The second is meal ID and the third might be meal time monthly sub.

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So the way that we have been doing this is we've been using a custom enumeration called product and

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I want to show you that product has two cases.

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When you download this project one is zero I guess the zero index is hied adds the other one is meal.

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We're going to add a third case here.

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So go ahead and call or write case monthly sub and we're going to set that to be equal to 2.

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OK.

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We're simply following the order of the array as we put them in.

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Now when we attempt to make a purchase of an item like hide ads we pass in the index of 0 because this

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enumeration has an explicit type of int.

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Now when we will let me show you when we do that k we go to our detail Visi And let's see what do we

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do.

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We tap by button ok.

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We call IAP service instance and we call that function attempt purchased for item with product index

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and we can call meal or hide ads right we pass in that enumeration value which has an explicit value

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of 0 1 or 2.

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Now in our IP service we pull out that raw value from the index and then use that to access the item

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in the array we want K then we pass it into an S-K payment and pass that into the S-K payment queue

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which is like a list of transactions that store kit needs to make.

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So then after that the payment is made and this delegate method payment queue updated transactions is

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called.

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That is where we finish the transactions.

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OK.

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So there are five different things that can happen.

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It is either purchased it's restored like I showed you with that blue button it fails.

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Payment is deferred meaning payment was not able to be made or purchasing.

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OK.

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And that's what happens when you tap on the button but you have not yet purchased it loads into the

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purchasing temporary time.

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I guess there was like a temporary window of time where it's considered to be purchasing.

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So let's say that we bought a meal at consumable purchase it comes in here we tap complete and we pass

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it into our complete function.

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OK.

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And that's just directly beneath us.

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Now we do different actions depending on what comes in.

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If it's the meal we don't really need to do anything because we just finished the transaction because

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it's something that you buy over and over again.

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But for hide ads we call a function called Set non-consumer purchase and we set it to be true.

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Basically what that does is it sets a value in our user defaults to either be true or false depending

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on what we pass in.

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And the key is non consumable purchase was made because remember if we buy the hide ads in that purchase

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We're going to pass in true because we want to basically say hey a non consumable purchase was made

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and we want to save that to user defaults so that that purchase is reflected even if we quit the app

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and go back in.

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So what we need to do is we need to set up a way to purchase our subscription and to do that.

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We're going to use this same attempt to purchase function but we need to add a button to our interface.

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So let's go ahead and let's head into Maine that story board and we're going to go ahead and select

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this button which is a part of a stacked view.

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And to duplicate it all we need to do is press command see Command V and now we have a duplicate button

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but B where we've already set this button up with an outlet because this button is already connected.

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And if we duplicate it the duplicate button is also connected so watch what happens if I right click

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it's already connected to another view controller and we do not want that.

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So get rid of that connection and we're going to change this to be a dollar sign.

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OK press enter to lock it in place and then change the color to a nice green color and this green if

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you want to use it is 6 D-B C6 3.

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OK.

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So now that that is set in place we're going to go ahead and open up a storefront VC and the assistant

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editor.

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So click on that button and pull this over.

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Then we're going to go ahead and scroll all the way down to the bottom and we're going to go ahead and

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find the place where this action can go.

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We have one for the restore button.

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Let's go ahead and let's put this right above the restore button.

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So right click and drag from the button and release then go ahead and select action.

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And go ahead and type subscribe button was pressed and press connect.

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And now we have a function that we can basically do things when we push this button.

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Now let's collapse the assistant editor.

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Let's go into storefront Visi and find that IAB action again.

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OK here it is.

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So what we're going to do is we're going to call our attempt to purchase function.

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Now go ahead and call that by typing IAP service for instance because remember it's a singleton class.

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If you go into here you can see it's a singleton.

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We have a static instance that's available to us throughout the whole lifecycle of the application.

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Go back and type IAP service for instance dot attempt purchased for item.

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Pretty cool.

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Now remember this is for subscription so we can go ahead and type dot and use our enumeration to access

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the proper index we need which in our cases monthly sub press enter and check it out guys.

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That's all we need to do to attempt to purchase.

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We should go try this out we should go see how we did.

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So go ahead and build and run.

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I'm going to pull open my simulator here so you can see what's going on and basically I'm just using

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the movie recording feature on quick time which you can actually set your iPhone as a camera and it

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lets you view your screen right on your computer over USP.

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It's pretty cool.

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So let's go ahead.

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We're going to build and run that one more time.

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Sometimes quick time likes to hijack my you know my session but looks like we're good.

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Very cool.

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And if you take a look IAP products are loaded.

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So that means we've successfully loaded all of them.

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There were no errors.

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And watch what happens when I try to tap on my subscribe button.

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Check this out.

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If I push it it's going to ask for a password.

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And this is where you're going to have to set up what is called a sandbox tester.

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OK.

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So what I'm actually going to do is I'm actually going to push cancel on my phone I'm going to go into

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my settings and I'm going to go ahead and go to the app store settings and I'm going to show you that

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in just a moment.

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OK.

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So select app store and you'll see I already have an idea logged in.

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You'll have your Apple I.D. logged in in the App Store settings.

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You're going to go ahead and push sign out.

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And don't worry it's only going to sign you out of the App Store.

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Not all of your message not your iCloud just just the App Store.

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Leave this as it is and then go back to the app.

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K now when you select the subscribe button watch what happens.

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It's going to ask you to sign into an Apple ID.

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This is where iTunes Connect comes into play.

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So go ahead and pull open iTunes Connect again.

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And what you're going to do is you're going to click on my apps up at the top.

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You're going to click users and rolls and then you're going to click on a button that says send box

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testers.

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OK.

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And this is where you're going to basically create a fake Apple ID account that we can use to test our

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subscriptions.

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So to do that click the plus and we're going to give it a name a last name an email password.

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All that stuff just like you would with a real Apple ID.

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So I'm just going to say test account and the e-mail.

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This is where we're going to use a cool thing called Nahda.

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OK.

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And in order to do that go to get not a dot com.

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And basically it's a temporary disposable e-mail account that you can use when you need it and delete

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it when you don't need it anymore.

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Which is perfect for test accounts.

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So go ahead and click on get me an inbox and check out what happens here.

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I already have one but I'm going to create a new one click add more and you can choose how you want

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your e-mail to end.

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I'm good with a mail doc club.

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And we'll just say meal plan.

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Aim at our meal plan at a male duck club.

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Click Add.

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And check it out.

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No messages yet.

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Your new messages will appear here.

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This is my e-mail meal plan at a male duck club.

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Click copy and then we can go back to iTunes Connect and paste in that e-mail.

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Now you're going to need to remember that and you're also going to need to choose a password for you

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to remember.

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So go ahead and type a password.

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I'm using test test one two three exclamation mark.

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Test test one two three exclamation mark.

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And my question is just going to be lame What is a test test test.

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One two three exclamation mark.

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Now choose a date of birth it doesn't really matter and choose your country.

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I'm just going to choose United States now when this is done.

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Click save when you have all the information filled out.

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Remember your password.

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Remember the e-mail and click save as soon as that's done it'll show up in your test account.

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OK right.

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Their meal plan at a male duck club.

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And if you go back to nada you'll see you have an e-mail that says verify your Apple ID.

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This is very very important if you do not verify your Apple ID.

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You are not able to test subscriptions.

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And that's why you need to verify.

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That's why we're using disposable e-mail so you don't have to create a bunch of Gmail accounts because

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that's not not a really cool thing to do.

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So we're just using a disposable e-mail because we're not going to need it forever.

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So click on that e-mail click verify now just like so and then enter the password you created earlier.

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For me it was test test one two three exclamation mark.

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Then click continue.

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And as soon as that's done it'll say Hey you're good to go green check is good.

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E-mail address varified.

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So let's go ahead and we're going to head back into our app here.

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We're going to click use existing ID and I'm going to go ahead and enter my e-mail which for myself

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was meal plan at a male club my password Whoops I spelled that wrong.

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A male user like type it right.

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Man all right my password was.

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Test test one two three exclamation mark and then click.

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By now it's going to ask you for it again.

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It's going to say hey enter the password.

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Use existing Apple ID and sadly you have to do it one more time.

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Let's do it again.

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Meal Plan this is basically just setting up the account and verifying everything.

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A male club.

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All right.

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And do not try to sign in on in the appstore settings because it actually will not work.

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It will register it as an official Apple ID and for this we're actually registering it as a test sandbox

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test account.

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So test test one two three press.

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OK.

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And it's not going to do anything.

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That's because we have just successfully logged in.

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But watch what happens when I push the dollar sign button again boom it asks for the password for that

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particular account so now we know we're logged in.

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Test test one two three exclamation mark.

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And watch what happens when I push.

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Ok

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look at that subscribe to meal plan get rid of that not now thing subscribe to meal plan this subscription

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will automatically renew every month forty 4:49 ninety nine.

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That's exactly right.

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That's what we just wanted to set up so with if we push that button we're subscribed but it's not going

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to be very good for our users because at the moment that doesn't mean a whole lot.

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It doesn't do anything so click Cancel.

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And this is amazing guys we have our subscription almost completely set up.

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We just have to do a couple of things to basically determine how a subscription is going to modify or

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influence the way that our app works.

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And we're going to do that in a future video so let's go ahead and let's head over to the next video

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where we're going to talk about how how do we handle failure.

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How do we handle payment deferral.

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How do we handle making the official purchase and setting things in user defaults so that they're locked

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let's do it.

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Let's head over to the next video and let's talk about that stuff right now.