.jsipfs Identity peerId is not the peerId given in options

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1

If I use the following setup :

const peerId = await createEd25519PeerId();
console.log(peerId.toString());
const ipfs = await createIpfs({
  libp2p:{
    peerId
  },
});

I’ve noticed the peerId saved in the ~/.jsipfs/config :

  "Identity": {
    "PeerID": "12D3KooW...eaDmhKifKjf9ripJav",
    "PrivKey": "CAESQNNG0M...klMEweotbg4bsHK/dfrrkszFUDMS6aOdTLps="
  },

Is not the same. This sounds surprising, as I don’t know which one is used to identify me in the ipfs network. Is it a bug or is there a explanation to such a behavior ?
Thanks

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2

By going deeper into ipfs code, I’ve succeeded to force the peerId by the following code :

  const ipfs = await createIpfs({
    libp2p: {
      peerId,  // no use... peerId is modified in ipfs repo creation
    },
    config: {
      Bootstrap: bootstrap,
      Identity: { // if I want to force the peerId read from .jsipfs/config
        peerId: myPeerId.toString(),
        PrivKey: privKey,
      }
    },
    init: {
      allowNew: true,
      privateKey: privKey, // to force the peerId during the .jsipfs/config creation
    }
  });

It looks like it works, but I wonder what is the recommended setup, and why the libp2p peerId is not used. This not seems to be documented. What should be done ?

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3

It looks like all you need to do on init, as I understand it is:

Source: js-ipfs/CONFIG.md at master · ipfs/js-ipfs · GitHub

config: {
  Identity: {
    PrivKey: privKey,
  }
}

As PeerID is set on init anyways, which will be generated from PrivKey. This configuration, as I understand it, should allow you to set your PeerID to whatever you want.

I agree that having a bundle of js-ipfs stuff, outlining how to do steps like this would be incredibly useful.

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4

I’ve understood the same : this config.Identity is used to force the peerId, whatever is the peerId stored in .jsipfs, and you’re right, the peerId is not used, as seen here (btw, it should be written PeerID…), but seems to be required in typescript to fit the IdentityConfig :

      Identity: {
        PeerID: myPeerId.toString(),
        PrivKey: privKeyString,
      } as IdentityConfig,
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