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by PhilippGille
91 days ago
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In the cryptocurrency world this has existed many years already. For example with the Lightning network on top of Bitcoin it has always been easy to let the server generate an invoice, which the client pays and then the client sends another request including cryptographic proof of the payment. On layer 2 it was always cheap and fast. For example I created this Go middleware at the time: https://github.com/philippgille/ln-paywall#how-it-works (currently defunct) Similar projects implemented that into standalone API gateways. All using status code 402 already. Here Stripe's example is using USDC, so still crypto BTW. |
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