feat: add retrieval protocol code parsing #418
Draft
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This PR adds a retrieval code as draft to hint what kind of retrieval protocols one host may run. e.g.
/ip4/.../p2p/qmfoo/tag/bitswap/tag/httpas discussedThis enables us to be able to prioritize dialling to hosts that we know how to communicate with and avoid unnecessary dials. This is an optional Hint.
More context: https://github.com/vasco-santos/provider-hinted-uri/blob/main/EXPLORATION.md
Multicodec PR ready multiformats/multicodec#380