With Blockfrost, I can easily query which assets belong to a staking address using /accounts/{stake_address}/addresses/assets. I would like to use this approach to allow users to associate their accounts with an ADA Handle. However, I don't see an easy way to check when the Handle has been moved to a different wallet (besides querying Blockfrost every x hours). Is there a better approach using Blockfrost? Should I look into hosting a node instead?

Using Tango (so not Blockfrost), this should be possible in two weeks. See here.

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I don't think Blockfrost offers event based callbacks like that. You might want to look into tangocrypto, but as far as I can tell they also don't offer webhooks for this specific type of event: https://docs.tangocrypto.com/notify/notify/using-webhooks#types-of-wehooks

Maybe it's worth getting in touch with them as I think it could potentially be an interesting addition for their service.

The other option would be to set up a cardano node, as you said, and connect a db-sync (postgres) instance which you can query.

  • I contacted both Blockfrost and Tango about this feature, so hopefully at least one of them will consider adding it. In the meantime, looks like I'll be setting up a node and db-sync. Thanks for your help! Apr 6, 2022 at 14:31

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