update to the latest version of cashu-ts

package.json

@@ -17,7 +17,7 @@
     "typescript": "^5.3.2"
   },
   "dependencies": {
-    "@cashu/cashu-ts": "^1.2.1",
+    "@cashu/cashu-ts": "^2.0.0",
     "@nostr-dev-kit/ndk": "^2.10.7"
   }
 }

src/cashu.ts

@@ -1,6 +1,6 @@
-import {getDecodedToken, type Proof} from "@cashu/cashu-ts";
-import type {TokenEntry} from "@cashu/cashu-ts";
-import {getMailSubscriptionDurationForSats} from "./general.ts";
+import { CashuMint, CashuWallet, getDecodedToken, getEncodedToken } from "@cashu/cashu-ts";
+import type { Token } from "@cashu/cashu-ts";
+import { getMailSubscriptionDurationForSats } from "./general.ts";
 
 class InvalidTokenException extends Error {
   constructor(message: string) {
@@ -20,31 +20,39 @@ export class TokenInfo {
   ] as const;
   private static readonly MIN_AMOUNT = 21 as const;
 
-  public readonly tokens: TokenEntry[];
+  public readonly token: Token;
   public readonly amount: number;
-  public readonly mint: string;
-  public readonly proofs: Proof[];
+
+  get mint() {
+    return this.token.mint;
+  }
+
+  get proofs() {
+    return this.token.proofs;
+  }
 
   constructor(protected readonly tokenString: string) {
-    const decodedTokenData = getDecodedToken(tokenString);
-    const tokens = decodedTokenData.token;
-    const amount = tokens.flatMap(t => t.proofs).reduce((c, x) => c + x.amount, 0);
+    const token = getDecodedToken(tokenString);
 
-    if (decodedTokenData.unit !== 'sat')
-      throw new InvalidTokenException('Invalid token format. We only accept tokens denominated in sats');
-    if(decodedTokenData.token.length === 0)
-      throw new InvalidTokenException('Invalid token format. We only accept tokens with at least one proof');
-    if (tokens.slice(1).some(t => t.mint !== tokens[0].mint))
-      throw new InvalidTokenException('Invalid token format. We only accept tokens with the same mint');
-    if (!TokenInfo.ALLOWED_MINTS.includes(tokens[0].mint))
+    const amount = token.proofs.reduce((c, x) => c + x.amount, 0);
+
+    if (!TokenInfo.ALLOWED_MINTS.includes(token.mint))
       throw new InvalidTokenException('Unsupported mint');
     if (amount < TokenInfo.MIN_AMOUNT)
       throw new InvalidTokenException(`Invalid amount. Minimum required: ${TokenInfo.MIN_AMOUNT} sats`);
 
-    this.tokens = tokens;
+    this.token = token;
     this.amount = amount;
-    this.mint = tokens[0].mint;
-    this.proofs = tokens.flatMap(t => t.proofs);
+  }
+
+  async receive(): Promise<string> {
+    const mint = new CashuMint(this.mint);
+    const wallet = new CashuWallet(mint);
+    const newToken = await wallet.receive(this.tokenString);
+    return getEncodedToken({
+      mint: this.mint,
+      proofs: newToken
+    });
   }
 }
 

src/index.ts

@@ -1,4 +1,4 @@
-export * from "./cashu";
-export * from "./general";
+export * from "./cashu.ts";
+export * from "./general.ts";
 export * from "./nostr.ts";
 export * from "./email.ts";

src/nostr.ts

@@ -1,6 +1,7 @@
 import NDK, {NDKEvent, NDKPrivateKeySigner, NDKUser} from "@nostr-dev-kit/ndk";
 import {generateSecretKey} from "nostr-tools";
 import {randomTimeUpTo2DaysInThePast} from "./general.ts";
+import {decode as nip19Decode, npubEncode} from "nostr-tools/nip19";
 
 export async function encryptEventForRecipient(
   ndk: NDK,
@@ -25,3 +26,14 @@ export async function encryptEventForRecipient(
   giftWrap.ndk = ndk;
   return giftWrap;
 }
+
+export function npubToPubKeyString(npub: string) {
+  const decoded = nip19Decode(npub);
+  if (decoded.type !== 'npub')
+    throw new Error('Invalid npub');
+  return decoded.data;
+}
+
+export function pubKeyStringToNpub(pubKey: string) {
+  return npubEncode(pubKey);
+}