The order of the addresses can affect our success rate in dialing a
relay - if it's a loopback address or similar it won't work.
Instead try dialing every address.
We have a peerstore that keeps all data for all observed peers in memory with no eviction.
This is fine when you don't discover many peers but when using the DHT you encounter a significant number of peers so our peer storage grows and grows over time.
We have a persistent peer store, but it just periodically writes peers into the datastore to be read at startup, still keeping them in memory.
It also means a restart doesn't give you any temporary reprieve from the memory leak as the previously observed peer data is read into memory at startup.
This change refactors the peerstore to use a datastore by default, reading and writing peer info as it arrives. It can be configured with a MemoryDatastore if desired.
It was necessary to change the peerstore and *book interfaces to be asynchronous since the datastore api is asynchronous.
BREAKING CHANGE: `libp2p.handle`, `libp2p.registrar.register` and the peerstore methods have become async
* chore: remove ipfs-utils dep
We only use it for the env detection, so use [wherearewe](https://www.npmjs.com/package/wherearewe)
instead which is that, but pulled out into a tiny module.
The `TextDecoder` class is global everywhere we support so we don't
need to pull it in from `ipfs-utils` and it's been removed from v8
anyway.
* chore: update ipfs-http-client
BREAKING CHANGES:
top level types were updated, multiaddr@9.0.0 is used, dialer and keychain internal property names changed and connectionManager minPeers is not supported anymore
* feat: auto relay
* fix: leverage protoBook events to ask relay peers if they support hop
* chore: refactor disconnect
* chore: do not listen on a relayed conn
* chore: tweaks
* chore: improve _listenOnAvailableHopRelays logic
* chore: default value of 1 to maxListeners on auto-relay
