Merge pull request #253 from getAlby/fix/nwc-relay-error

fix: add custom error for nwc relay connection

src/NWCClient.ts

@@ -181,6 +181,7 @@ export class Nip47PublishError extends Nip47Error {}
 export class Nip47ResponseDecodingError extends Nip47Error {}
 export class Nip47ResponseValidationError extends Nip47Error {}
 export class Nip47UnexpectedResponseError extends Nip47Error {}
+export class Nip47NetworkError extends Nip47Error {}
 
 export const NWCs: Record<string, NWCOptions> = {
   alby: {
@@ -1011,6 +1012,14 @@ export class NWCClient {
     if (!this.secret) {
       throw new Error("Missing secret key");
     }
-    await this.relay.connect();
+    try {
+      await this.relay.connect();
+    } catch (_ /* error is always undefined */) {
+      console.error("failed to connect to relay", this.relayUrl);
+      throw new Nip47NetworkError(
+        "Failed to connect to " + this.relayUrl,
+        "OTHER",
+      );
+    }
   }
 }