Solana Mini App Integration Guide

For the Bot DApp in the Solana ecosystem within the Telegram Mini App, we have launched the SDK under the OmniConnect universal integration solution to help DApp quickly integrate with Bitget Wallet Lite.

If you want to integrate with Bitget Wallet, you can refer to more usage examples to achieve this.

OmniConnect

OmniConnect is a software development kit launched by Bitget Wallet aimed at developers, enabling seamless integration of Mini-Apps within the Telegram ecosystem to a multi-chain environment. After integrating this kit, Telegram Mini Apps can directly interact with Bitget Wallet for signing, transactions, and other DApp operations across multiple chains.

OmniConnect: An open protocol that links wallets and DApps (Web3 applications) via a bridge server, establishing remote connections between TG MiniApp and/or Bitget Wallet Lite.
Chains officially supported by OmniConnect:
- Solana (Solana Blockchain Network)
Wallets supported by OmniConnect:
- Bitget Wallet Lite
Quick experience with the online demo:
- OmniConnect Demo
- Demo code example
NPM Package:
- @bitget-wallet/omni-connect

Installation and Initialization

To integrate Omni Connect into your DApp, you can use pnpm:

bash

pnpm add @bitget-wallet/omni-connect

pnpm add @bitget-wallet/omni-connect

Before connecting the wallet, you need to instantiate an object for subsequent operations such as connecting the wallet and sending transactions.

bash

const connector = new OmniConnect({ metadata, namespace })

const connector = new OmniConnect({ metadata, namespace })

Request Parameters

metaData - object: Application metadata
- name - string: Application name
- iconUrl - string: Application icon url
- url - string: The main website of the application
- privacyPolicyUrl - string(optional):
- termsOfUseUrl - string(optional):
namespace - object: Necessary namespace information for requesting a connection. The value must be within the supported range, otherwise the connection will fail.
- solana - object: Solana value is "solana"

Example

import { OmniConnect, PreventType } from "@bitget-wallet/omni-connect";

const connector = new OmniConnect({
  metadata: {
    name: "<Your DAppName>",
    iconUrl: "<Your iconUrl>",
    url: "<Your website url>",
    privacyPolicyUrl: "", // optional
    termsOfUseUrl: "", // optional
  },
  namespace: {
    solana: {},
  },
});

import { OmniConnect, PreventType } from "@bitget-wallet/omni-connect";

const connector = new OmniConnect({
  metadata: {
    name: "<Your DAppName>",
    iconUrl: "<Your iconUrl>",
    url: "<Your website url>",
    privacyPolicyUrl: "", // optional
    termsOfUseUrl: "", // optional
  },
  namespace: {
    solana: {},
  },
});

Connect to Wallet

Connect to the wallet to get the wallet address, which serves as an identifier and is necessary for signing transactions;

connector.connect(options);

connector.connect(options);

Request Parameters

options - object(optional)
- ret - string: PreventType.CLOSE You can specify not to close the wallet after connecting to it (the default behavior is to close it)
- request - object: Parameters required to establish a connection, extensible

Restore Connection

If the user has previously connected their wallet, use this method to restore the connection state.

Example

connector.restoreConnection();

connector.restoreConnection();

Sign message

Method for sign messages to wallets, supporting signatures;

connector.signMessage({ message })

Request Parameters

message - string: message to sign
settings - object(optional): Open the TG wallet configuration
- preventPopup - string: PreventType.OPEN(Prevent new windows from opening)

Example

try {
  await connector.signMessage({
    message: "The quick brown fox jumps over the lazy dog",
  });
} catch (error) {
  console.log(error);
}

try {
  await connector.signMessage({
    message: "The quick brown fox jumps over the lazy dog",
  });
} catch (error) {
  console.log(error);
}

Send transaction

Methods for sending messages to wallets to support transactions;

connector.sendTransaction({ transaction })

Request Parameters

transaction - VersionedTransaction | legacyTransaction
settings - object(optional): Open the TG wallet configuration
- preventPopup - string: PreventType.OPEN(Prevent new windows from opening)

Example

const instructions = [
  SystemProgram.transfer({
    fromPubkey: new PublicKey(address),
    toPubkey: new PublicKey(address),
    lamports: Number(transferLamports),
  }),
];
const messageV0 = new TransactionMessage({
  payerKey: new PublicKey(address),
  recentBlockhash: blockhash,
  instructions,
}).compileToV0Message();
const transactionV0 = new VersionedTransaction(messageV0);
console.log("VersionedTransaction", transactionV0);

try {
  const signature = await connector.provider.signTransaction({
    transaction: transactionV0,
  });
  console.log("signature", signature);
} catch (error) {
  console.error(error?.message);
}

or:

const transaction = new Transaction({
  recentBlockhash: blockhash,
  feePayer: new PublicKey(address),
});
const instruction = SystemProgram.transfer({
  fromPubkey: new PublicKey(address),
  toPubkey: new PublicKey(address),
  lamports: 10,
});
transaction.add(instruction);
console.log("legacyTransaction", transaction);

try {
  const signature = await connector.provider.signTransaction({
    transaction,
  });
  console.log("signature", signature);
} catch (error) {
  console.error(error?.message);
}

const instructions = [
  SystemProgram.transfer({
    fromPubkey: new PublicKey(address),
    toPubkey: new PublicKey(address),
    lamports: Number(transferLamports),
  }),
];
const messageV0 = new TransactionMessage({
  payerKey: new PublicKey(address),
  recentBlockhash: blockhash,
  instructions,
}).compileToV0Message();
const transactionV0 = new VersionedTransaction(messageV0);
console.log("VersionedTransaction", transactionV0);

try {
  const signature = await connector.provider.signTransaction({
    transaction: transactionV0,
  });
  console.log("signature", signature);
} catch (error) {
  console.error(error?.message);
}

or:

const transaction = new Transaction({
  recentBlockhash: blockhash,
  feePayer: new PublicKey(address),
});
const instruction = SystemProgram.transfer({
  fromPubkey: new PublicKey(address),
  toPubkey: new PublicKey(address),
  lamports: 10,
});
transaction.add(instruction);
console.log("legacyTransaction", transaction);

try {
  const signature = await connector.provider.signTransaction({
    transaction,
  });
  console.log("signature", signature);
} catch (error) {
  console.error(error?.message);
}

Monitor wallet state changes

The wallet statuses are: connection status, sign result, etc. You can use this method to get the status.

onStatusChange( callback: (walletInfo) => void, errorsHandler?: (err) => void ): () => void;

Request Parameters

callback - (walletInfo) => void
- id - number | string: Request id
- namespaceKey - string: 'solana'
- event - string: Event type
- connected - boolean: Connection Status
- result - object
  - address - string: Wallet connection address
  - signature - string: Sign result
errorsHandler - (err) => void
- code - number: Error code
- message - string: Error message

Example

const subscription = connector.onStatusChange(
  (walletInfo) => {
    console.log("onStatusChange", walletInfo);
    const { id, namespaceKey, event, connected, result } = walletInfo;
    switch (event) {
      case "connect":
      case "disconnect":
        // connected or disconnect logic..
        break;
      case "signMessage":
        break;
      case "signTransaction":
      case "sendTransaction":
        // handle result?.signature, result?.reciept
        break;
      default:
        break;
    }
  },
  (err) => {
    const { code, message } = err;
    console.error(`error stream: code: ${code}, message: ${message}`);
  }
);

const subscription = connector.onStatusChange(
  (walletInfo) => {
    console.log("onStatusChange", walletInfo);
    const { id, namespaceKey, event, connected, result } = walletInfo;
    switch (event) {
      case "connect":
      case "disconnect":
        // connected or disconnect logic..
        break;
      case "signMessage":
        break;
      case "signTransaction":
      case "sendTransaction":
        // handle result?.signature, result?.reciept
        break;
      default:
        break;
    }
  },
  (err) => {
    const { code, message } = err;
    console.error(`error stream: code: ${code}, message: ${message}`);
  }
);

Call unsubscribe to save resources when you no longer need to listen for updates.

subscription?.unsubscribe();

subscription?.unsubscribe();

Disconnect

Disconnect the connected wallet

connector.disconnect()

Error codes

Exceptions that may be thrown during connection:

UNKNOWN_ERROR Unknown Exception
BAD_REQUEST_ERROR Request error
UNKNOWN_APP_ERROR Unknown app exception
USER_REJECTS_ERROR User Rejected
METHOD_NOT_SUPPORTED Method not supported

export enum SIGN_DATA_ERROR_CODES {
    UNKNOWN_ERROR = 0,
    BAD_REQUEST_ERROR = 1,
    UNKNOWN_APP_ERROR = 100,
    USER_REJECTS_ERROR = 300,
    METHOD_NOT_SUPPORTED = 400
}
export enum SEND_TRANSACTION_ERROR_CODES {
    UNKNOWN_ERROR = 0,
    BAD_REQUEST_ERROR = 1,
    UNKNOWN_APP_ERROR = 100,
    USER_REJECTS_ERROR = 300,
    METHOD_NOT_SUPPORTED = 400
}

export enum SIGN_DATA_ERROR_CODES {
    UNKNOWN_ERROR = 0,
    BAD_REQUEST_ERROR = 1,
    UNKNOWN_APP_ERROR = 100,
    USER_REJECTS_ERROR = 300,
    METHOD_NOT_SUPPORTED = 400
}
export enum SEND_TRANSACTION_ERROR_CODES {
    UNKNOWN_ERROR = 0,
    BAD_REQUEST_ERROR = 1,
    UNKNOWN_APP_ERROR = 100,
    USER_REJECTS_ERROR = 300,
    METHOD_NOT_SUPPORTED = 400
}

Complete development example

OmniConnect DappDemo

"use client";
// import Image from "next/image";
import React from "react";
import {
  OmniConnect,
  PreventType,
  RequestMethods,
} from "@bitget-wallet/omni-connect";
import { useState, useEffect, useMemo, useRef } from "react";
import nacl from "tweetnacl";
import { decodeUTF8, encodeUTF8 } from "tweetnacl-util";
import {
  Keypair,
  Transaction,
  TransactionMessage,
  VersionedTransaction,
  SystemProgram,
  PublicKey,
} from "@solana/web3.js";
import bs58 from "bs58";

export function uint8ArraytoHex(uint8Array) {
  if (!uint8Array) return "";
  return Array.prototype.map
    .call(uint8Array, (x) => ("00" + x.toString(16)).slice(-2))
    .join("");
}

export const hextoUint8Array = (hexString) =>
  new Uint8Array(hexString.match(/.{1,2}/g).map((byte) => parseInt(byte, 16)));

export const Toast = ({ message, isVisible, onClose }) => {
  if (!isVisible) return null;

  return (
    <div className="fixed inset-0 flex items-center justify-center bg-gray-800 bg-opacity-75 z-50">
      <div className="bg-white rounded-lg shadow-lg p-4 text-center animate-fadeIn">
        <p className="text-gray-800">{message}</p>
      </div>
    </div>
  );
};
export default function Home() {
  const [connector, setConnector] = useState({} as any);
  const [connected, setConnected] = useState(false);
  const [address, setAddress] = useState("");
  const [signature, setSignature] = useState("");
  const [reciept, setReciept] = useState();
  const [msg, setMsg] = useState("The quick brown fox jumps over the lazy dog");

  const [msgSig, setMsgSig] = useState({} as any);

  const [isToastVisible, setToastVisible] = useState(false);
  const [isClickToastVisible, setClickToastVisible] = useState(false);
  const [isFetchToastVisible, setFetchToastVisible] = useState(false);
  const [blockhash, setBlockhash] = useState("");

  const [transferLamports, setTransferLamports] = useState("20");

  const init = async (connector) => {
    const result = await connector.provider.restoreConnection();
    // setAddress(account);
  };
  useEffect(() => {
    const connector = new OmniConnect({
      metadata: {
        name: "<Your DAppName>",
        iconUrl: "<Your iconUrl>",
        url: "<Your website url>",
        privacyPolicyUrl: "", // optional
        termsOfUseUrl: "", // optional
      },
      namespace: {
        solana: {},
      },
    });
    setConnector(connector);

    init(connector);

    const subscription = connector.provider.onStatusChange(
      (walletInfo) => {
        console.log("onStatusChange", walletInfo);
        const { id, namespaceKey, event, connected, result } = walletInfo;
        switch (event) {
          case RequestMethods.Connect:
          case RequestMethods.Disconnect:
            setConnected(connected);
            setAddress(result?.address);
            break;
          case RequestMethods.SignMessage:
            setMsgSig(result);
            break;
          case RequestMethods.SignTransaction:
          case RequestMethods.SendTransaction:
            setSignature(result?.signature);
            setReciept(result?.reciept);
            break;
          default:
            break;
        }
      },
      (err) => {
        const { code, message } = err;
        console.error(`error stream: code: ${code}, message: ${message}`);
      }
    );
    return () => {
      subscription?.unsubscribe();
    };
  }, []);

  return (
    <div className="w-full bg-[#efefef] box-border">
      <div className="fixed w-full h-[55px] text-large font-bold text-white flex justify-center items-center bg-[#3894ff] ">
        <img className="w-6 h-6 rounded-full mr-2" src={"/logo.png"} />
        OmniConnect
      </div>
      <div className="flex flex-col max-w-[600px] mx-auto px-5 py-[55px] gap-3 font-[family-name:var(--font-geist-sans)]">
        {/* connect */}
        <div className="w-full p-5 bg-white rounded-md my-4">
          <div className="flex flex-col justify-between">
            <div className="mb-3">App namespace: Solana</div>
            <div className="mb-3">
              Connect Status: {connected ? "connected" : "unconnect"}
            </div>
          </div>
          <div className="break-all">{connected && `address: ${address}`}</div>
          <button
            className={`w-full h-[48px] rounded-full bg-[#3894ff] text-white text-lg mt-6 `}
            type="button"
            onClick={async () => {
              setClickToastVisible(true);
              setTimeout(() => {
                setClickToastVisible(false);
              }, 500);

              if (!!connected) {
                connector.provider.disconnect();
              } else {
                try {
                  const { account } = await connector.provider.connect();
                  console.log("account", account);
                } catch (error) {}
              }
            }}
          >
            {connected ? "disconnect" : "connect"}
          </button>
        </div>
        <div className="w-full p-5 bg-white rounded-md my-4">
          <h2 className="text-center text-lg font-bold mb-3">Sign message</h2>
          <textarea
            name="sol_sign"
            rows={2}
            className="w-full p-2 text-black border border-solid border-[#dedede] rounded-md"
            value={msg}
            onChange={(e) => setMsg(e.target.value)}
          />
          <button
            className={`w-full h-[48px] rounded-full bg-[#3894ff] text-white text-lg mt-6`}
            type="button"
            onClick={async () => {
              setClickToastVisible(true);
              setTimeout(() => {
                setClickToastVisible(false);
              }, 500);
              console.log("touched sol_sign");

              try {
                const signature = await connector.provider.signMessage({
                  message: msg,
                });
                console.log("signature", signature);
              } catch (error) {
                // handle error..
                console.error(error?.message);
              }
            }}
          >
            sign message
          </button>
          <div className="mt-5">
            <div style={{ wordBreak: "break-all" }} className="break-all mb-3">
              signature: {msgSig.signature}
            </div>
            <button
              className={`w-full h-[48px] rounded-full bg-[#3894ff] text-white text-lg mt-4`}
              type="button"
              onClick={() => {
                if (!connected || !msgSig.signature) return;

                const messageBytes = decodeUTF8(msg);
                const result = nacl.sign.detached.verify(
                  messageBytes,
                  hextoUint8Array(msgSig.signature),
                  bs58.decode(address)
                );
                alert(`verify result: ${result}`);
              }}
            >
              verify signed message
            </button>
          </div>
        </div>

        <div className="w-full p-5 bg-white rounded-md my-4">
          <h2 className="text-center text-lg font-bold mb-3">
            Fetch Recent Blockhash
          </h2>
          <div className="break-all">recentBlockhash: {blockhash}</div>
          <button
            className={`w-full h-[48px] rounded-full bg-[#3894ff] text-white text-lg my-4`}
            type="button"
            onClick={async () => {
              setFetchToastVisible(true);
              try {
                const res = await fetch(
                  "https://docs-demo.solana-mainnet.quiknode.pro/",
                  {
                    method: "post",
                    body: JSON.stringify({
                      jsonrpc: "2.0",
                      id: 1,
                      method: "getRecentBlockhash",
                    }),
                  }
                );
                const json = await res.json();
                const { blockhash, feeCalculator } = json?.result?.value;

                setBlockhash(blockhash);
              } catch (error) {
                console.error(error);
              } finally {
                setFetchToastVisible(false);
              }
            }}
          >
            fetch recentBlockhash
          </button>
        </div>

        <div className="w-full p-5 bg-white rounded-md my-4">
          <h2 className="text-center text-lg font-bold mb-3">
            SignTransaction
          </h2>
          transfer lamports:
          <textarea
            rows={1}
            className="w-full min-h-10 p-2 text-black border border-solid border-[#dedede] rounded-md"
            value={transferLamports}
            onChange={(e) => {
              setTransferLamports(e.target.value);
            }}
          />
          <button
            className={`w-full h-[48px] rounded-full bg-[#3894ff] text-white text-lg my-4`}
            type="button"
            onClick={async () => {
              if (!address) {
                alert("please connect wallet first!");
                return;
              }
              if (!blockhash) {
                alert("please get recentBlockhash first!");
                return;
              }
              setClickToastVisible(true);
              setTimeout(() => {
                setClickToastVisible(false);
              }, 500);
              console.log("touched versionedTransaction");

              const instructions = [
                SystemProgram.transfer({
                  fromPubkey: new PublicKey(address),
                  toPubkey: new PublicKey(address),
                  lamports: Number(transferLamports),
                }),
              ];
              const messageV0 = new TransactionMessage({
                payerKey: new PublicKey(address),
                recentBlockhash: blockhash,
                instructions,
              }).compileToV0Message();
              const transactionV0 = new VersionedTransaction(messageV0);
              console.log("VersionedTransaction", transactionV0);

              try {
                const signature = await connector.provider.signTransaction({
                  transaction: transactionV0,
                });
                console.log("signature", signature);
              } catch (error) {
                console.error(error?.message);
              }
            }}
          >
            sign versionedTransaction
          </button>
          <button
            className={`w-full h-[48px] rounded-full bg-[#3894ff] text-white text-lg my-4`}
            type="button"
            onClick={async () => {
              if (!address) {
                alert("please connect wallet first!");
                return;
              }
              if (!blockhash) {
                alert("please get recentBlockhash first!");
                return;
              }
              setClickToastVisible(true);
              setTimeout(() => {
                setClickToastVisible(false);
              }, 500);
              console.log("touched legacyTransaction");

              const transaction = new Transaction({
                recentBlockhash: blockhash,
                feePayer: new PublicKey(address),
              });
              const instruction = SystemProgram.transfer({
                fromPubkey: new PublicKey(address),
                toPubkey: new PublicKey(address),
                lamports: 10,
              });
              transaction.add(instruction);
              console.log("legacyTransaction", transaction);

              try {
                const signature = await connector.provider.signTransaction({
                  transaction,
                });
                console.log("signature", signature);
              } catch (error) {
                console.error(error?.message);
              }
            }}
          >
            sign legacyTransaction
          </button>
          signature:{" "}
          <textarea
            rows={2}
            className="w-full min-h-10 p-2 text-black border border-solid border-[#dedede] rounded-md"
            value={signature}
            onChange={(e) => setSignature(e.target.value)}
          />
          <div className="break-all">reciept: {reciept}</div>
          <button
            className={`w-full h-[48px] rounded-full bg-[#3894ff] text-white text-lg my-4`}
            type="button"
            onClick={async () => {
              if (!signature) {
                alert("Please get signature first!");
                return;
              }
              setFetchToastVisible(true);
              try {
                const res = await fetch(
                  "https://docs-demo.solana-mainnet.quiknode.pro/",
                  {
                    method: "post",
                    body: JSON.stringify({
                      method: "sendTransaction",
                      params: [signature],
                      id: 1,
                      jsonrpc: "2.0",
                    }),
                  }
                );
                const json = await res.json();
                if (json.error) {
                  alert(
                    `code: ${json.error?.code}; message: ${json.error?.message}`
                  );
                  return;
                }

                const reciept = json?.result;

                setReciept(reciept);
              } catch (error) {
                console.error(error);
              } finally {
                setFetchToastVisible(false);
              }
            }}
          >
            send by open api
          </button>
        </div>

        {!connected && (
          <div className="w-full p-5 bg-white rounded-md my-4">
            <button
              className={`w-full h-[48px] rounded-full bg-[#3894ff] text-white text-lg mt-5`}
              type="button"
              onClick={async () => {
                setClickToastVisible(true);
                setTimeout(() => {
                  setClickToastVisible(false);
                }, 500);
                console.log("touched connect & sign");

                try {
                  const result = await connector.provider.connect({
                    ret: PreventType.Close,
                  });
                  console.log("result", result);

                  const { signature } = await connector.provider.signMessage({
                    message: msg,
                    settings: {
                      preventPopup: PreventType.Open,
                    },
                  });
                  console.log("signature", signature);
                } catch (error) {}
              }}
            >
              connect & sign
            </button>
          </div>
        )}
      </div>
      <Toast
        message="Chain switched successfully"
        isVisible={isToastVisible}
        onClose={() => setToastVisible(false)}
      />
      <Toast
        message="Touched"
        isVisible={isClickToastVisible}
        onClose={() => setClickToastVisible(false)}
      />
      <Toast
        message="Fetching"
        isVisible={isFetchToastVisible}
        onClose={() => setFetchToastVisible(false)}
      />
    </div>
  );
}

"use client";
// import Image from "next/image";
import React from "react";
import {
  OmniConnect,
  PreventType,
  RequestMethods,
} from "@bitget-wallet/omni-connect";
import { useState, useEffect, useMemo, useRef } from "react";
import nacl from "tweetnacl";
import { decodeUTF8, encodeUTF8 } from "tweetnacl-util";
import {
  Keypair,
  Transaction,
  TransactionMessage,
  VersionedTransaction,
  SystemProgram,
  PublicKey,
} from "@solana/web3.js";
import bs58 from "bs58";

export function uint8ArraytoHex(uint8Array) {
  if (!uint8Array) return "";
  return Array.prototype.map
    .call(uint8Array, (x) => ("00" + x.toString(16)).slice(-2))
    .join("");
}

export const hextoUint8Array = (hexString) =>
  new Uint8Array(hexString.match(/.{1,2}/g).map((byte) => parseInt(byte, 16)));

export const Toast = ({ message, isVisible, onClose }) => {
  if (!isVisible) return null;

  return (
    <div className="fixed inset-0 flex items-center justify-center bg-gray-800 bg-opacity-75 z-50">
      <div className="bg-white rounded-lg shadow-lg p-4 text-center animate-fadeIn">
        <p className="text-gray-800">{message}</p>
      </div>
    </div>
  );
};
export default function Home() {
  const [connector, setConnector] = useState({} as any);
  const [connected, setConnected] = useState(false);
  const [address, setAddress] = useState("");
  const [signature, setSignature] = useState("");
  const [reciept, setReciept] = useState();
  const [msg, setMsg] = useState("The quick brown fox jumps over the lazy dog");

  const [msgSig, setMsgSig] = useState({} as any);

  const [isToastVisible, setToastVisible] = useState(false);
  const [isClickToastVisible, setClickToastVisible] = useState(false);
  const [isFetchToastVisible, setFetchToastVisible] = useState(false);
  const [blockhash, setBlockhash] = useState("");

  const [transferLamports, setTransferLamports] = useState("20");

  const init = async (connector) => {
    const result = await connector.provider.restoreConnection();
    // setAddress(account);
  };
  useEffect(() => {
    const connector = new OmniConnect({
      metadata: {
        name: "<Your DAppName>",
        iconUrl: "<Your iconUrl>",
        url: "<Your website url>",
        privacyPolicyUrl: "", // optional
        termsOfUseUrl: "", // optional
      },
      namespace: {
        solana: {},
      },
    });
    setConnector(connector);

    init(connector);

    const subscription = connector.provider.onStatusChange(
      (walletInfo) => {
        console.log("onStatusChange", walletInfo);
        const { id, namespaceKey, event, connected, result } = walletInfo;
        switch (event) {
          case RequestMethods.Connect:
          case RequestMethods.Disconnect:
            setConnected(connected);
            setAddress(result?.address);
            break;
          case RequestMethods.SignMessage:
            setMsgSig(result);
            break;
          case RequestMethods.SignTransaction:
          case RequestMethods.SendTransaction:
            setSignature(result?.signature);
            setReciept(result?.reciept);
            break;
          default:
            break;
        }
      },
      (err) => {
        const { code, message } = err;
        console.error(`error stream: code: ${code}, message: ${message}`);
      }
    );
    return () => {
      subscription?.unsubscribe();
    };
  }, []);

  return (
    <div className="w-full bg-[#efefef] box-border">
      <div className="fixed w-full h-[55px] text-large font-bold text-white flex justify-center items-center bg-[#3894ff] ">
        <img className="w-6 h-6 rounded-full mr-2" src={"/logo.png"} />
        OmniConnect
      </div>
      <div className="flex flex-col max-w-[600px] mx-auto px-5 py-[55px] gap-3 font-[family-name:var(--font-geist-sans)]">
        {/* connect */}
        <div className="w-full p-5 bg-white rounded-md my-4">
          <div className="flex flex-col justify-between">
            <div className="mb-3">App namespace: Solana</div>
            <div className="mb-3">
              Connect Status: {connected ? "connected" : "unconnect"}
            </div>
          </div>
          <div className="break-all">{connected && `address: ${address}`}</div>
          <button
            className={`w-full h-[48px] rounded-full bg-[#3894ff] text-white text-lg mt-6 `}
            type="button"
            onClick={async () => {
              setClickToastVisible(true);
              setTimeout(() => {
                setClickToastVisible(false);
              }, 500);

              if (!!connected) {
                connector.provider.disconnect();
              } else {
                try {
                  const { account } = await connector.provider.connect();
                  console.log("account", account);
                } catch (error) {}
              }
            }}
          >
            {connected ? "disconnect" : "connect"}
          </button>
        </div>
        <div className="w-full p-5 bg-white rounded-md my-4">
          <h2 className="text-center text-lg font-bold mb-3">Sign message</h2>
          <textarea
            name="sol_sign"
            rows={2}
            className="w-full p-2 text-black border border-solid border-[#dedede] rounded-md"
            value={msg}
            onChange={(e) => setMsg(e.target.value)}
          />
          <button
            className={`w-full h-[48px] rounded-full bg-[#3894ff] text-white text-lg mt-6`}
            type="button"
            onClick={async () => {
              setClickToastVisible(true);
              setTimeout(() => {
                setClickToastVisible(false);
              }, 500);
              console.log("touched sol_sign");

              try {
                const signature = await connector.provider.signMessage({
                  message: msg,
                });
                console.log("signature", signature);
              } catch (error) {
                // handle error..
                console.error(error?.message);
              }
            }}
          >
            sign message
          </button>
          <div className="mt-5">
            <div style={{ wordBreak: "break-all" }} className="break-all mb-3">
              signature: {msgSig.signature}
            </div>
            <button
              className={`w-full h-[48px] rounded-full bg-[#3894ff] text-white text-lg mt-4`}
              type="button"
              onClick={() => {
                if (!connected || !msgSig.signature) return;

                const messageBytes = decodeUTF8(msg);
                const result = nacl.sign.detached.verify(
                  messageBytes,
                  hextoUint8Array(msgSig.signature),
                  bs58.decode(address)
                );
                alert(`verify result: ${result}`);
              }}
            >
              verify signed message
            </button>
          </div>
        </div>

        <div className="w-full p-5 bg-white rounded-md my-4">
          <h2 className="text-center text-lg font-bold mb-3">
            Fetch Recent Blockhash
          </h2>
          <div className="break-all">recentBlockhash: {blockhash}</div>
          <button
            className={`w-full h-[48px] rounded-full bg-[#3894ff] text-white text-lg my-4`}
            type="button"
            onClick={async () => {
              setFetchToastVisible(true);
              try {
                const res = await fetch(
                  "https://docs-demo.solana-mainnet.quiknode.pro/",
                  {
                    method: "post",
                    body: JSON.stringify({
                      jsonrpc: "2.0",
                      id: 1,
                      method: "getRecentBlockhash",
                    }),
                  }
                );
                const json = await res.json();
                const { blockhash, feeCalculator } = json?.result?.value;

                setBlockhash(blockhash);
              } catch (error) {
                console.error(error);
              } finally {
                setFetchToastVisible(false);
              }
            }}
          >
            fetch recentBlockhash
          </button>
        </div>

        <div className="w-full p-5 bg-white rounded-md my-4">
          <h2 className="text-center text-lg font-bold mb-3">
            SignTransaction
          </h2>
          transfer lamports:
          <textarea
            rows={1}
            className="w-full min-h-10 p-2 text-black border border-solid border-[#dedede] rounded-md"
            value={transferLamports}
            onChange={(e) => {
              setTransferLamports(e.target.value);
            }}
          />
          <button
            className={`w-full h-[48px] rounded-full bg-[#3894ff] text-white text-lg my-4`}
            type="button"
            onClick={async () => {
              if (!address) {
                alert("please connect wallet first!");
                return;
              }
              if (!blockhash) {
                alert("please get recentBlockhash first!");
                return;
              }
              setClickToastVisible(true);
              setTimeout(() => {
                setClickToastVisible(false);
              }, 500);
              console.log("touched versionedTransaction");

              const instructions = [
                SystemProgram.transfer({
                  fromPubkey: new PublicKey(address),
                  toPubkey: new PublicKey(address),
                  lamports: Number(transferLamports),
                }),
              ];
              const messageV0 = new TransactionMessage({
                payerKey: new PublicKey(address),
                recentBlockhash: blockhash,
                instructions,
              }).compileToV0Message();
              const transactionV0 = new VersionedTransaction(messageV0);
              console.log("VersionedTransaction", transactionV0);

              try {
                const signature = await connector.provider.signTransaction({
                  transaction: transactionV0,
                });
                console.log("signature", signature);
              } catch (error) {
                console.error(error?.message);
              }
            }}
          >
            sign versionedTransaction
          </button>
          <button
            className={`w-full h-[48px] rounded-full bg-[#3894ff] text-white text-lg my-4`}
            type="button"
            onClick={async () => {
              if (!address) {
                alert("please connect wallet first!");
                return;
              }
              if (!blockhash) {
                alert("please get recentBlockhash first!");
                return;
              }
              setClickToastVisible(true);
              setTimeout(() => {
                setClickToastVisible(false);
              }, 500);
              console.log("touched legacyTransaction");

              const transaction = new Transaction({
                recentBlockhash: blockhash,
                feePayer: new PublicKey(address),
              });
              const instruction = SystemProgram.transfer({
                fromPubkey: new PublicKey(address),
                toPubkey: new PublicKey(address),
                lamports: 10,
              });
              transaction.add(instruction);
              console.log("legacyTransaction", transaction);

              try {
                const signature = await connector.provider.signTransaction({
                  transaction,
                });
                console.log("signature", signature);
              } catch (error) {
                console.error(error?.message);
              }
            }}
          >
            sign legacyTransaction
          </button>
          signature:{" "}
          <textarea
            rows={2}
            className="w-full min-h-10 p-2 text-black border border-solid border-[#dedede] rounded-md"
            value={signature}
            onChange={(e) => setSignature(e.target.value)}
          />
          <div className="break-all">reciept: {reciept}</div>
          <button
            className={`w-full h-[48px] rounded-full bg-[#3894ff] text-white text-lg my-4`}
            type="button"
            onClick={async () => {
              if (!signature) {
                alert("Please get signature first!");
                return;
              }
              setFetchToastVisible(true);
              try {
                const res = await fetch(
                  "https://docs-demo.solana-mainnet.quiknode.pro/",
                  {
                    method: "post",
                    body: JSON.stringify({
                      method: "sendTransaction",
                      params: [signature],
                      id: 1,
                      jsonrpc: "2.0",
                    }),
                  }
                );
                const json = await res.json();
                if (json.error) {
                  alert(
                    `code: ${json.error?.code}; message: ${json.error?.message}`
                  );
                  return;
                }

                const reciept = json?.result;

                setReciept(reciept);
              } catch (error) {
                console.error(error);
              } finally {
                setFetchToastVisible(false);
              }
            }}
          >
            send by open api
          </button>
        </div>

        {!connected && (
          <div className="w-full p-5 bg-white rounded-md my-4">
            <button
              className={`w-full h-[48px] rounded-full bg-[#3894ff] text-white text-lg mt-5`}
              type="button"
              onClick={async () => {
                setClickToastVisible(true);
                setTimeout(() => {
                  setClickToastVisible(false);
                }, 500);
                console.log("touched connect & sign");

                try {
                  const result = await connector.provider.connect({
                    ret: PreventType.Close,
                  });
                  console.log("result", result);

                  const { signature } = await connector.provider.signMessage({
                    message: msg,
                    settings: {
                      preventPopup: PreventType.Open,
                    },
                  });
                  console.log("signature", signature);
                } catch (error) {}
              }}
            >
              connect & sign
            </button>
          </div>
        )}
      </div>
      <Toast
        message="Chain switched successfully"
        isVisible={isToastVisible}
        onClose={() => setToastVisible(false)}
      />
      <Toast
        message="Touched"
        isVisible={isClickToastVisible}
        onClose={() => setClickToastVisible(false)}
      />
      <Toast
        message="Fetching"
        isVisible={isFetchToastVisible}
        onClose={() => setFetchToastVisible(false)}
      />
    </div>
  );
}

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Supported ChainIds

See Supported Mainnet

Solana Mini App Integration Guide ​

OmniConnect ​

Installation and Initialization ​

Request Parameters ​

Example ​

Connect to Wallet ​

Request Parameters ​

Restore Connection ​

Example ​

Sign message ​

Request Parameters ​

Example ​

Send transaction ​

Request Parameters ​

Example ​

Monitor wallet state changes ​

Request Parameters ​

Example ​

Disconnect ​

Error codes ​

Complete development example ​

Supported ChainIds ​

Solana Mini App Integration Guide

OmniConnect

Installation and Initialization

Request Parameters

Example

Connect to Wallet

Request Parameters

Restore Connection

Example

Sign message

Request Parameters

Example

Send transaction

Request Parameters

Example

Monitor wallet state changes

Request Parameters

Example

Disconnect

Error codes

Complete development example

Supported ChainIds