README.md

Create Solana Action

• Wrapper for solana actions / solana pay
• Uses Hono (setup to be deployed to cloudflare)

Installation

npm install gist:c583db7577fc258570dfa2dbdb73be7e

Usage

import { createAction, createTx } from "createaction-ts";

export default createAction({
  title: "Support",
  description: "Support",
  icon: "https://img.icons8.com/?size=48&id=VA1My7dhyBQU&format=png",
  label: "Donate 1 lamport"
}, async (account) => ({
  transaction: await createTx(new PublicKey(account), [
    SystemProgram.transfer({
      fromPubkey: new PublicKey(account),
      toPubkey: new PublicKey("9ySNVUz6cGrdeAYFSeuKSwL5b48UJCbDyyufexDq1Fu"),
      lamports: 1,
    }),
  ]),
}));

createaction.ts

import {
  ActionsSpecGetResponse,
  ActionsSpecPostResponse,
} from "solanaactions-ts";
import { Hono } from "hono";
import { zValidator } from "@hono/zod-validator";
import { strictObject, string } from "zod";
import { cors } from "hono/cors";

export const createAction = (
  params: ActionsSpecGetResponse,
  handle: (account: string) => Promise<ActionsSpecPostResponse>
) =>
  new Hono()
    .use("/*", cors())
    .get("/", ({ json }) => json(params))
    .post(
      "/",
      zValidator("json", strictObject({ account: string() })),
      ({ json, req }) =>
        handle(req.valid("json").account)
          .then((res) => json(res))
          .catch((err) => json(err, 500))
    );

const toBase64 = (bytes: Uint8Array) =>
  btoa(Array.from(bytes, (c) => String.fromCharCode(c)).join(""));

export const createTx = async (
  payerKey: PublicKey,
  instructions: TransactionInstruction[]
) =>
  toBase64(
    new VersionedTransaction(
      new TransactionMessage({
        payerKey,
        recentBlockhash: await new Connection(clusterApiUrl("mainnet-beta"))
          .getLatestBlockhash({ commitment: "max" })
          .then((res) => res.blockhash),
        instructions,
      }).compileToV0Message()
    ).serialize()
  );

package.json

{
  "version": "0.0.1",
  "name": "createaction-ts",
  "main": "createaction.ts",
  "dependencies": {
    "@hono/zod-validator": "^0.2.2",
    "@solana/web3.js": "^1.93.2",
    "hono": "^4.4.9",
    "solanaactions-ts": "gist:f6012a42dc0a360d2f999f7a647dc83c",
    "zod": "^3.23.8"
  }
}