--- title: Display virtual card details with Issuing Elements - CreatorPlatform.xyz - Part 31 slug: display-virtual-card-details-with-issuing-elements-creatorplatform-xyz-part-31 published_at: 2022-10-09 21:04:17 +0000 updated_at: 2026-03-04 20:13:02 +0000 summary: description: Playlist: https://www.youtube.com/playlist?list=PLS6F722u-R6IJfBrIRx3a2SBkAL4vUp2p Code: https://github.com/cjavdev/creators.dev/ Follow me on Twitter: http://twitter.com/cjav_dev #rubyonrails #ruby #rails tags: [cjav_dev, web development tutorials, web development for beginners, vim, ruby, rails, javascript, ruby on rails, active record, ruby on rails tutorial, issuing, virtual cards, issuing elements, stripe issuing, pci compliant card display, stripe issued card details, stripe issuing card number, stripe issuing tutorial, virtual card tutorial] views: 1152 author: CJ Avilla url: https://www.cjav.dev/videos/display-virtual-card-details-with-issuing-elements-creatorplatform-xyz-part-31 youtube_url: https://www.youtube.com/watch?v=9dPRhPsZSm0 youtube_id: 9dPRhPsZSm0 embed_url: https://www.youtube.com/embed/9dPRhPsZSm0 thumbnail_url: https://i.ytimg.com/vi/9dPRhPsZSm0/hqdefault.jpg type: video --- # Display virtual card details with Issuing Elements - CreatorPlatform.xyz - Part 31 *Published: October 09, 2022* *Views: 1152* ## Watch [Watch on YouTube](https://www.youtube.com/watch?v=9dPRhPsZSm0) [![Display virtual card details with Issuing Elements - CreatorPlatform.xyz - Part 31](https://i.ytimg.com/vi/9dPRhPsZSm0/hqdefault.jpg)](https://www.youtube.com/watch?v=9dPRhPsZSm0) ## Description Playlist: https://www.youtube.com/playlist?list=PLS6F722u-R6IJfBrIRx3a2SBkAL4vUp2p Code: https://github.com/cjavdev/creators.dev/ Follow me on Twitter: http://twitter.com/cjav_dev #rubyonrails #ruby #rails ## Transcript test test test what's up welcome back in this episode we're going to see how to display what's up welcome back in this episode you'll learn how to display an issued cards virtual number directly to the customer we're going to do it in a pci compliant way this is technically still in beta but it should be out very soon or it might be out by the time this video is out so head over and take a look at the documentation for issuing and look around for how you might display the card details so right now we have this view that shows the card holder and we have the id of the like the stripe id of the issued card if you are curious about what's going on here you can head over and take a look at previous episodes where we are already generating card holders we're generating cards this episode is going to be all about showing those card details to the customer so we want to make this id a link or maybe we might make this edit into a link that goes to a card show view to show the details of the card now this is a little bit special because we're actually going to show a raw credit card number of an issued card to the customer so we need to be very careful about this and we don't want that card number to actually like traffic anywhere through our server so the way that this works is we're actually going to make an api call client side to stripe with a special little nonce and we're going to get back some details but we'll walk through the whole thing so the first thing is that we want to have this link go to the sharp the show page let's go to the card holder show which is this page where we see this card id already and we're going to make this a a link to the card the card path for card and we'll also make this link that's down here we'll also make this go to the card path for card and instead of saying edit we'll call this uh view okay so now when we refresh this page this is a link and also this is a link we should probably make this one look like it's actually underlined so we can say class is underline okay so now we can click on that link and there is no show action in the cards controller so we're gonna go to the cards controller and add a new show action and for now we're just gonna find the card in the current user.cards.fine params id and it turns out that current user doesn't actually have a an association for cards yet so let's jump over to the user model go down here we're going to say has many cards through card holders okay and now we don't have a view so we'll go over to our views here for cards and we're going to add a show.html.erb and in here we will actually like render out our card show now at the top i'm just going to grab this okay so card show looks oops okay so our card show we're just going to say card at the top now uh now we should be able to see some details about the card okay we could even print out like okay at car.stripe id just to make sure that we're looking at the right thing so that's the id of the issued card now in order to render the card on the page i want to make it look sort of nice and so instead of writing all of the uh the html here i've got a gist that you can head over and take a look if you want you can feel free to copy this this is all just using tailwind css to build out a credit card looking thing so what we've got here is just like we're going to print out the the name address and cart let me just show you so this is what it's going to look like i think it looks pretty sweet it's using some of the gradient stuff and it's rendering out right now it's just rendering out a test card number expiry and cbv cbc if you look at the very bottom here there's also an image so you can kind of get an idea of what that looks like now what we want to do is actually replace this temporary or test card holder and test expiry and test cbc with the virtual issued card details now the way we're going to do that is we're going to use stripe js on the client side and we're going to do a couple different things with an ephemeral key so hang on tight here we go all right so what i want to do is i'm going to actually create a new stimulus controller that's going to manage this entire card view so i'm going to say rails g stimulus card and that's going to generate a new controller that we're going to use to mount that div we just added so on the card show here this div i'm going to call this data controller is card okay now this card controller is inside of the connect we're going to like initialize stripe we're going to fetch an ephemeral key from the server and then we need to like re-retrieve the um issued card and then we need to like mount the issuing elements so the name issuing elements might change so when you're googling around just head over to the stripe documentation and look under issuing for how you might display car details so a lot of this is still in beta but it's really cool and really powerful so i wanted to just show you if you're interested in participating in the beta hit me up on twitter at cgive underscore dev um or you can just email cjavilla stripe.com okay so what we want to do here is we're gonna in order to initialize stripe we need the publishable key so we're gonna have a couple different values here so we're going to say static values is going to be some things so we've got we're going to need our like stripe key and that's going to be a string we're also going to need in order to fetch the ephemeral key from the server we're going to need the id of the of the card of the card in our database we want to pass the database id for that card so that's going to be a number we're also going to have the stripe id for the card so we're going to say stripe id and that's going to be a string and we will also have the stripe account for the current creator so this is going to be the stripe account and that's also going to be a string all right that's kind of a mouthful but this should get us pretty far so we're going to initialize stripes we're going to say const stripe is uh stripe this stripe key um actually before we okay so before we do that now in order to get these values we're going to pass those down with data data attributes so we're going to say data card id is the card id and this needs to be dash value okay so data card stripe id value is going to be at car.stripe id uh data card stripe key value is going to be rails.application.credentialsdig stripe publishable key and finally we need the uh the stripe account so this is going to be stripe account value and that's going to be current currentuser.account.stripe id okay so what we want to do first is just kind of like console.log all of these things so we're going to say yeah this stripe key this id um actually it's not values it's a this stripe key value that's how stimulus works so we're going to say id is this id value the stripe id cool and then the stripe account is that stripe account value so let's just open up the console here and make sure that these values are being logged out so we've got our stripe key our stripe account stripe id for the issued card we have our publishable key okay so all of that looks good so now we can initialize stripe so we're going to say this dot stripe is a new stripe a new instance of stripe we'll also hear it say this.elements is going to be a newish a new instance of elements so we're going to use stripe.js elements on the client now in order to use this class here this stripe class we actually need to install stripe.js so we're going to do that everywhere by adding a a script tag at the top of our application html erb template and that's going to install stripe.js from js.stripe.com and now we'll have access to that everywhere okay so now what we want to do is we want to fetch the ephemeral key from the server so i'm going to say ephemeral key is this dot fetch or like a weight this dot fetch ephemeral key and in order to fetch the ephemeral key from the server we need to pass it a nonce so i'm going to say nonce here and in order to get that nonce we need to use stripe.js client side to create a nonce so we're going to say this dot create nonce okay so async create nonce what does this look like here we're going to call stripe dot create ephemeral key nonce and we need to pass in the issued card here the issuing card and that's going to be this dot stripe id value and that should create a nonce for us so after we create the non so just like console.log nonce here and after we create the ephemeral key we'll console log ephemeral key now fetch ephemeral key is not defined so let's define that async fetch ephemeral key that is going to again take in the nonce now we're going to use um the fetch api to make a request to our server now with this nonce so the first thing is like the when the page loads the first call is off to stripe to get a nonce back the second call is down to our server with that nonce to generate an ephemeral key then we're going to use that ephemeral key to go back to stripe to fetch the uh to fetch the card all of this stuff is in order to like really enforce security because we are about to retrieve these issued card details uh client side okay so we're gonna fetch the ephemeral key so we're to make a new uh api call here and it's going to go to slash cards slash and then the id of the card slash ephemeral key now the in the query string here we're going to include the nonce and we're also going to include the api version and the reason we need to pass the api version is that it's possible in in a lot of cases we use ephemeral keys in mobile clients where you might ship a mobile client and it's possible that the customer never like updates their app on their phone and so there they might expect the shape of the ephemeral key that's coming back from the server to have the format for a very specific api version so we need to pass down our api version here so i'm actually just going to pass down the most recent which is 2022-0801 and okay so this fetch call is going to return a promise that we'll have a response on it and we want the json off of that response and we'll just return that entire thing when we fetch the ephemeral key now this you might be paying attention closely and notice that like this route doesn't actually exist on our server yet so we are going to need to go uh hit that up but let's just refresh the page and see what happens okay missing value for stripe api key should be a string so the first thing is we have an issue here ah this should be stripe key value and now we refresh the page okay let's console.log this dot stripe key value just to see what we're getting back okay it's possible we have some error in our javascript so let's oh you know what because we're using a weight here for these i bet we need to have async on connect okay let's see let's refresh all right so now we've got our stripe api key now reference stripe is not defined so we're using stripe somewhere here ah this yes so this should be called this dot okay we want to pull it off of the controller all right now we're getting this error that says 404 where um we have not actually been able to fetch the um this api call also notice that this nonce is undefined so in order to use this new api i need to actually pass in a couple arguments to the construction of stripe now this is um the first one is going to be the stripe account the id of the stripe account that's going to be so that when we are gen or when we're fetching these issued cards for connected accounts it knows which connected account it should be authenticating on behalf of the second is that we need to because this is still in beta we actually need to specify that this is for an issuing elements to beta so now if we refresh the page we should be getting back a nonce this dot create nonce oh create nods should return the nonce okay so we refresh all right so now we're getting back a nonce that's great and our our get request is failing so let's go generate a new controller for creating ephemeral keys so we're gonna say rails g controller for um ephemeral keys and this is just going to have a show action and we're going to put it in routes here we'll nest it under cards resource ephemeral key we're only going to have the show route here so we'll go to ephemeral keys controller and we want to make sure that users are logged in when they hit this route all right so the first thing we want to do is look up the card so current user.cards.find params card id the next thing is we're going to create an ephemeral key so we're going to use the stripe api and we're going to create this new ephemeral key now again we do need to pass the stripe account header and the stripe version stripe account is going to be current user.account.stripe id and the version recall that this is passed in so params version now we also need to pass in the nonce here this is going to be params nonce we also need to pass in the issuing card so we're going to say issuing card is at card.stripe id notice that i'm not passing around the card id value instead and pass or the the card's stripe id value i'm passing around the card id in our database so that i can look it up and confirm that this was from the database okay so that should work pretty well oh right and then we want to just render the json back for this render json of the ephemeral key so now if we refresh the page here that network request we got a 500 internal server error so let's see what's going on there stripe version is missing a comma after here okay refresh all right so now we have our ephemeral key back that is looking really good the next step is to use this ephemeral keys secret inside of the card controller in order to re-retrieve the card and then mount the issuing elements so we're going to say const card result is await this dot fetch card and we're going to need to pass down both the ephemeral key and the nonce when we do this so let's implement fetch card so this is going to be async fetch card and it's going to take in the ephemeral key and the nonce and again this is going to make an api call using the stripe um [Music] stripe.js so we're going to say retrieve issuing card and we're going to pass in the stripe id value and then we also need to pass in the ephemeral key secret which is going to be ephemeral key dot secret and we need to pass in the nonce and this should give us back a card result so we're going to just return await this thing and that should give us back a card result all right so now let's mount the elements we're going to say this we'll make a new method called mount elements and here we can just call mount elements and this is where we're going to mount each of the different elements so we're going to have a card element an expiry element and a cbc element const number is going to be this.elements.create issuing card number display and this is going to take in the issuing card which is going to be this dot stripe id value and it's also going to take in a possible style that we'll talk about in just a little bit so then in order to mount this number element we need to call number.mount now in order to mount the element we can pass in a css selector or we can pass in an actual target and so what we want to do is go back to our card show and create a way for us to target these elements so the card number element here let's actually change this to data card target for the number and instead of putting four twos in here i'm gonna change this to asterisks just so that it has like a placeholder that is not the actual number while it's doing all of this client-side fetching we will wait until we actually like load the number so this is kind of like our loading state all right we also need to say data card target for the expiry and again this will be sort of just our placeholder text and finally our cvc so we're going to say data card cv or target for cbc and again three stars okay so now back inside of our card controller we can set up some targets so we can say static targets are the number the expiry and the cvc okay now what we can do is we can use those targets to mount our element so let's take a look at our browser now if we refresh we have our placeholder and now we are rendering that virtual card number so now that is the actual card number pretty exciting okay uh it's the wrong color so let's talk about how we can style this so in addition to passing in this issuing card number we can pass in a style with a base and we can say i don't know the color is white or something that'll match the co the font color of our placeholder and everything so that now matches and that looks pretty nice so we're going to follow the same pattern for the other elements we need to pass in the issuing card the style and it's all going to be the same exact params for each of the other element creations so let's actually extract these params and we'll call them just params here and then we're going to grab all of these and paste them here and then we'll pass in this to to each of the different elements that we create so now we're going to create an expiry that's going to be issuing card expiry and we'll say expiry.mount expiry target and we'll do the same thing with cvc cbc.mount cbc target now if we refresh we can see our card number and our expiry and the cvc there that's really cool so now we are able to render an issuing card to the user so that they can go and actually use this card number and spend that spend the funds that are inside of this card recall that those funds are being sourced from this financial account balance so the cards that we're issuing those virtual cards that we're issuing are tied back to the financial account that is inside of each of these creators accounts so we are logging into this creator dashboard we have some funds that are flowing in from sales that are happening at our store and as those sales come in we have these customers and these customers are spending money but then as the creator we can issue ourselves cards and then go and use those cards in order to spend some of that money from the uh from that store of funds which is that financial account so this was this is like really really cool stuff very fun in order to render out the actual card numbers inside of the inside of the ui in a secure way that is pci compliant because these actual details are only trafficking through stripes servers directly they're not actually showing up on your own server because they're being rendered client-side inside of this secure iframe so very cool stuff all right we're gonna wrap it there thanks so much for watching and we'll see you in the next one [Music] --- [Back to all videos](https://www.cjav.dev/videos) --- ## Hey Agent, thanks for visiting! 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