ingeniousambivert-payment-links | Stripe Developers | Page 1

versed relic Aug 17, 2022, 4:35 PM

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Hi there!

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What is SPA?

umbral prism Aug 17, 2022, 4:35 PM

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Single Page Application

versed relic Aug 17, 2022, 4:35 PM

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Ah thanks

umbral prism Aug 17, 2022, 4:36 PM

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I am using MERN stack

versed relic Aug 17, 2022, 4:36 PM

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Gotcha

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So you want to embed the payment form in your SPA, correct? You don't want to involve a redirect?

umbral prism Aug 17, 2022, 4:37 PM

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The flow is kinda similar to the subscription flow where the user gets access based on the payment plan

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But instead of a fixed products I need dynamic amounts

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Embed payment or redirect, whichever is easier works for me

versed relic Aug 17, 2022, 4:39 PM

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Thanks

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So you want it to be recurring or not?

umbral prism Aug 17, 2022, 4:39 PM

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But it needs to track the payment status thats it. I need some kind of a webhook or something to let my app know the payment succeeded or failed

versed relic Aug 17, 2022, 4:40 PM

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Sounds like you are looking for one-time payments

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But you mentioned Subscriptions so wanted to clarify

umbral prism Aug 17, 2022, 4:40 PM

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versed relic So you want it to be recurring or not?

I need it to be one timed

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Not recurring

versed relic Aug 17, 2022, 4:40 PM

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Got it

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Last question

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is it a set Price amount per quantity of your product?

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Like is it $1 per x units?

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Or is this literally a "the customer specifies whatever they want"

umbral prism Aug 17, 2022, 4:41 PM

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versed relic But you mentioned Subscriptions so wanted to clarify

Ah, I mentioned subscription because I am aware of the flow for it I need something similar.
App creates customer -> customer pays -> App is notified of payment

versed relic Aug 17, 2022, 4:41 PM

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Yep that makes sense

umbral prism Aug 17, 2022, 4:42 PM

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No its just 1 unit with every payment

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So my app decides the amount depending on a few other parameters

versed relic Aug 17, 2022, 4:44 PM

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So for instance we have an "adjustable quantity" feature which would allow the customer to specify the quantity of a Product, but that Product would be like $1 per unit, as opposed to the customer just inputting $33.44 as the amount they are paying.

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So are you looking for the ability for them to specify an arbitrary amount, or are you trying to give them a base amount and they choose the quantity of that amount?

umbral prism Aug 17, 2022, 4:44 PM

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Actually the customer does not decide anything

versed relic Aug 17, 2022, 4:44 PM

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Hrmm okay now I'm confused 😅

umbral prism Aug 17, 2022, 4:45 PM

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Hold on

versed relic Aug 17, 2022, 4:45 PM

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Let's back up and have you write out the flow for me

umbral prism Aug 17, 2022, 4:45 PM

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Yes

versed relic Aug 17, 2022, 4:45 PM

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And I'll recommend the best integration based on that

umbral prism Aug 17, 2022, 4:45 PM

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Sure. Just a min

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So basically the customer signs up on my app and then they check a few boxes and depending on that my app decides the amount they pay (one unit only). So I can either embed the payment form in my app or I can redirect them to a stripe payment page. As long as I can track what customer paid what amount, either option is fine.

versed relic Aug 17, 2022, 4:47 PM

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Gotcha that's much simpler then

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I'd recommend using Stripe Checkout in that case. The general docs are here: https://stripe.com/docs/payments/checkout

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It does involve a redirect but it is the simplest integration

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And will handle everything you need.

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You can take a look at our Quickstart here: https://stripe.com/docs/checkout/quickstart to demo it and to see a very basic integration.

umbral prism Aug 17, 2022, 4:50 PM

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Do I need to create products and prices for this ?

versed relic Aug 17, 2022, 4:50 PM

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Essentially you will just create a Checkout Session based on what your customer selects on your app, then redirect the customer to that Session's URL when they hit your "checkout" button. Then you implement webhooks (https://stripe.com/docs/payments/checkout/fulfill-orders) for fulfillment.

umbral prism Aug 17, 2022, 4:50 PM

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I need something where I just enter an amount and some description and the customer pays for it

versed relic Aug 17, 2022, 4:50 PM

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Yes you do, but you can also create Prices inline (via price_data) if you prefer: https://stripe.com/docs/api/checkout/sessions/create#create_checkout_session-line_items-price_data

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Right, you can dictate the amount when you create the Session.

umbral prism Aug 17, 2022, 4:53 PM

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Okay, I was looking into paymentIntents and charges.

versed relic Aug 17, 2022, 4:56 PM

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Yep you could go that route

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But it is a higher integration burden

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So really just a trade-off of what you want.

umbral prism Aug 17, 2022, 5:01 PM

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Can you please explain me in a nutshell the flow for checkout, charges, payment intents ?

versed relic Aug 17, 2022, 5:02 PM

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Sure

umbral prism Aug 17, 2022, 5:03 PM

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Thank you so much

versed relic Aug 17, 2022, 5:03 PM

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Checkout = you create Checkout Session to determine how much to charge the user, you redirect user to session URL, we handle everything on the redirect page, customer is redirected back to your page after successful payment, you listen for webhooks for fulfillment

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Checkout Sessions create PaymentIntents and Charges

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So those will still be involved

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Using Elements = you create a PaymentIntent to determine how much to charge the user, you pass the PaymentIntent's client secret to your client, you render the Stripe Payment Element within your webpage using that client secret, customer enters payment details into the Payment Element, upon success you show a success message, you handle fulfillment with Webhooks.

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That is the short of it

umbral prism Aug 17, 2022, 5:06 PM

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Oh, okay. Can I control the ttl for the checkout session ?

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Also what exactly would I need to store in my db to determine the success or failure of the payment via webhooks ? customerId, anything else ? Also do I need to create products and prices for checkout sessions (I am a little confused about this) ? Because I just want my app to dynamically decide the amount for the checkout so creating product and prices would be an overhead for me every single time a customer decides to pay (since the amount will be dyanmic )

versed relic Aug 17, 2022, 5:12 PM

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Yep you can expire Checkout Sessions. Minimum amount of time though is 30 mins. They auto expire in 24 hours.

umbral prism Aug 17, 2022, 5:13 PM

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Can I extend the ttl to say 7 days ?

versed relic Aug 17, 2022, 5:13 PM

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umbral prism Also what exactly would I need to store in my db to determine the success or fai...

You store whatever you want in your DB, really. You likely want to store the Customer, the PaymentIntent, and perhaps some sort of Order ID, which you could set as metadata.

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No 24 hours max for a Checkout Session

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You would have to create a new Session

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You can handle Prices dynamically with Checkout

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Basically you would just create one Product in your Dashboard and then set that Product each time on the Session. Then you dictate the amount of the Session dynamically by setting line_items.price_data.unit_amount: https://stripe.com/docs/api/checkout/sessions/create#create_checkout_session-line_items-price_data-unit_amount

umbral prism Aug 17, 2022, 5:15 PM

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Okay got it. Thank you so much

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I will try this

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I really appreciate your help

versed relic Aug 17, 2022, 5:17 PM

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Sure thing! Let us know if you run into any issues while integrating!

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