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How should you decide what to do? Here are some considerations:
  • A backend proxy can be useful if you need to inspect and persist activity results. For example: if your users are creating wallets, you might want to persist the addresses. If your users are signing transactions, you might want to broadcast on their behalf.
  • Another reason why a backend server could be beneficial is monitoring, feature toggles, and validation: with a proxy you’re able to control which requests are proxied and which aren’t. You can also perform additional validation before signed requests are forwarded to 0xkey.
  • POSTing signed requests directly from your app frontend to 0xkey saves you the burden of running a proxy server, and takes you out of the loop so that your end-users interact directly with 0xkey. This is a “hands-off” approach that can work well if you want to give your end-users maximum flexibility and ownership over their sub-organization.