Chrome Extension

// contentScript.ts
import { setupTwitterObserver } from "@dialectlabs/blinks/ext/twitter";
import { ActionConfig, ActionContext } from "@dialectlabs/blinks";

// your RPC_URL is used to create a connection to confirm the transaction after action execution
setupTwitterObserver(new ActionConfig(RPC_URL, {
  signTransaction: async (tx: string, context: ActionContext) => { ... },
  signMessage(data: string | SignMessageData, context: ActionContext) { ... },
  connect: async (context: ActionContext) => { ... }
}))

// or

import { type ActionAdapter } from "@dialectlabs/blinks";

class MyActionAdapter implements ActionAdapter {
  get metadata() { ... }
  async signTransaction(tx: string, context: ActionContext) { ... }
  async connect(context: ActionContext) { ... }
  async confirmTransaction(sig: string, context: ActionContext) { ... }
  async signMessage(data: string | SignMessageData, context: ActionContext) { ... }
}

setupTwitterObserver(new MyActionAdapter());

import {
  ActionAdapter,
  ActionAdapterMetadata,
  BlockchainIds,
  SignMessageData
} from '@dialectlabs/blinks';

class MyActionAdapter implements ActionAdapter {
  get metadata() {
    return {
      // the IDs are CAIP-2 compatible strings
      supportedBlockchainIds: [BlockchainIds.SOLANA_MAINNET, BlockchainIds.ETHEREUM_MAINNET],
    };
  }
  async signTransaction(tx: string, context: ActionContext) {
    const actionBlockchainIds = context.action.metadata.blockchainIds;
    if (
      !actionBlockchainIds ||
      actionBlockchainIds.includes(BlockchainIds.SOLANA_MAINNET)
    ) {
      // handle solana mainnet
      return;
    }
    if (actionBlockchainIds.includes(BlockchainIds.ETHEREUM_MAINNET)) {
      // handle ethereum mainnet
    }
  }
  async connect(context: ActionContext) { ... }
  async confirmTransaction(sig: string, context: ActionContext) { ... }
  async signMessage(data: string | SignMessageData, context: ActionContext) { ... }
}