AUTH

You can set the authenticator option of createRxNostr() to automatically handle AUTH messages based on NIP-42. If this feature is enabled, REQs or EVENTs rejected with an auth-required status will be automatically retransmitted after a successful AUTH.

The simplest setting is authenticator: “auto”. This will respond to AUTH messages using the signer given to RxNostr. This setting should be sufficient for most use cases.

import { createRxNostr } from "rx-nostr";

const rxNostr = createRxNostr({ authenticator: "auto" });

For more advanced use cases, the authenticator can optionally take a signer. This allows the AUTH message to be created using a different signer than when issuing normal events:

import { createRxNostr } from "rx-nostr";
import { seckeySigner } from "rx-nostr-crypto";

const rxNostr = createRxNostr({
  signer: seckeySigner("nsec1aaa..."),
  authenticator: {
    signer: seckeySigner("nsec1bbb..."),
  },
});

It is also possible to specify a function format in case you want to use a different signer for each relay. For example, the following example responds to AUTH messages only on wss://nostr.example.com and ignores AUTH on other relays:

import { createRxNostr } from "rx-nostr";

const rxNostr = createRxNostr({
  authenticator: (relayUrl) => {
    if (relayUrl === "wss://nostr.example.com") {
      return "auto";
    } else {
      return undefined;
    }
  },
});

AUTH ​

AUTH