Chapter 1: Introduction to NFT Payment Solutions

In recent times, I've been documenting my experiences with integrating credit card payments for clients' NFT minting platforms. There are some impressive solutions available!

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In my earlier discussion, I extensively covered Crossmint. However, after evaluating numerous options, I found two standout choices for NFT launches: Crossmint and Winter. Both companies are commendable and customizable, making them worthy of consideration for developers and teams.

Today, I intend to share my insights on Winter. While it presents a few more stringent requirements compared to Crossmint, it also offers several attractive features. For instance, Winter provides a higher credit limit, which is beneficial in the NFT space, especially when teams are open to attracting larger investors, commonly referred to as "whales."

Now, let’s delve into my initial application design for an exciting upcoming drop, which you will soon see showcased.

Chapter 2: Technical Insights on Integrating Winter

As we explore Winter, it’s important to note that it has specific requirements for the minting function. For example, a recipient address must be provided. However, you don't have to modify your primary mint function. I created a dedicated function specifically for Winter, which allowed me to retain my existing ETH minting setup. Here’s how I structured it:

function ccMint(uint _amount, address _recipient, bool isAffiliate, string memory affiliateRef) external payable noReentrant {

// mint logic

}

In this setup, I've included additional parameters, ensuring that the essential amount and recipient address are at the forefront while allowing for flexible additions.

Since my NFT drop includes an affiliate program, I adopted a dynamic pricing model instead of a fixed mint price. This variability allows for different rates based on the mint type (regular or affiliate).

To facilitate Winter's credit card checkout process, I implemented a pricing function that Winter can query:

function ccGetPrice(string memory affiliateRef) public view returns (uint) {

bool isActive = affiliateAccounts[affiliateRef].affiliateIsActive;

if (isActive) { return promoPrice; } else { return mintPrice; }

}

Winter offers a React component that simplifies integration, but my implementation required additional setup to accommodate the extra parameters and pricing function.

While there may be more elegant solutions for those experienced with JSX, I discovered that using JSON.parse() allowed me to dynamically pass data to the component effectively.

As users interact with my minting application, the Winter checkout component updates seamlessly, accommodating promo codes and ensuring the right pricing is applied during transactions.

Chapter 3: A Walkthrough of Winter's User Experience

In my previous article, I focused heavily on Crossmint, which is indeed a robust product. However, I find Winter's checkout user experience to be more aligned with contemporary web3 aesthetics. Rather than a standalone modal, Winter offers a full-page popover, enhancing the user journey.

Let’s walk through the minting application. The design is intentionally straightforward, as I believe minting apps should prioritize functionality, especially when onboarding new users to web3.

Users can choose to connect their ETH wallet for a traditional minting experience, opt for credit card payment via Winter's popover, or input a promo code.

The affiliate pricing can be accessed through a URL such as [domain.com]?ref=promoCode or by entering the code directly on the page.

Once the “Purchase with Credit Card” button is clicked, the Winter-powered interface appears:

Users can then select a quantity:

They will enter their email and choose a delivery method, either to a Winter-created custodial wallet or their existing ETH wallet:

After confirming their payment details, users can proceed:

This leads to a confirmation screen once the minting process is completed:

Users will receive an email confirmation and can access their NFTs in their custodial wallet:

They can transfer their NFTs to other ETH wallets, keeping in mind the associated gas fees:

Winter also provides ample warnings for users who are new to web3, ensuring they proceed cautiously:

In conclusion, I am quite impressed with Winter and plan to utilize them for future minting applications involving credit card payments. However, for legacy contracts, I may opt for Crossmint since it doesn't necessitate modifications to the existing contracts. I have thoroughly vetted both companies, and Winter, backed by Y Combinator, provides a reassuring level of credibility in the web3 space.

Jim Dee is a prolific writer, developer, and multi-media creator from Portland. You can find him, his businesses, his books, and more at JPD3.com. Thank you for reading!