@reown/appkit-siwx/dist/esm/src/messengers/InformalMessenger.js

The chain agnostic tool to enable authentication for AppKit applications.

import { NetworkUtil } from '@reown/appkit-common';
import { ChainController } from '@reown/appkit-controllers';
import { SIWXMessenger } from '../core/SIWXMessenger.js';
/**
 * Follow Informal Message template from EIP-4361
 * @see https://eips.ethereum.org/EIPS/eip-4361#informal-message-template
 *
 * @example
 * ```
 * ${scheme}:// ${domain} wants you to sign in with your Ethereum account:
 * ${address}
 *
 * ${statement}
 *
 * URI: ${uri}
 * Version: ${version}
 * Chain ID: ${chain-id}
 * Nonce: ${nonce}
 * Issued At: ${issued-at}
 * Expiration Time: ${expiration-time}
 * Not Before: ${not-before}
 * Request ID: ${request-id}
 * Resources:
 * - ${resources[0]}
 * - ${resources[1]}
 * ...
 * - ${resources[n]}
 * ```
 */
export class InformalMessenger extends SIWXMessenger {
    constructor({ clearChainIdNamespace, ...params }) {
        super(params);
        this.version = '1';
        this.clearChainIdNamespace = clearChainIdNamespace || false;
    }
    /**
     * Get the blockchain name for a given chain ID
     * @param chainId The chain ID to get the blockchain name for
     * @returns The blockchain name
     */
    getNetworkName(chainId) {
        const requestedNetworks = ChainController.getAllRequestedCaipNetworks();
        return NetworkUtil.getNetworkNameByCaipNetworkId(requestedNetworks, chainId);
    }
    stringify(params) {
        const chainId = this.clearChainIdNamespace ? params.chainId.split(':')[1] : params.chainId;
        const networkName = this.getNetworkName(params.chainId);
        return [
            `${params.domain} wants you to sign in with your ${networkName} account:`,
            params.accountAddress,
            params.statement ? `\n${params.statement}\n` : '',
            `URI: ${params.uri}`,
            `Version: ${params.version}`,
            `Chain ID: ${chainId}`,
            `Nonce: ${params.nonce}`,
            params.issuedAt && `Issued At: ${params.issuedAt}`,
            params.expirationTime && `Expiration Time: ${params.expirationTime}`,
            params.notBefore && `Not Before: ${params.notBefore}`,
            params.requestId && `Request ID: ${params.requestId}`,
            params.resources?.length &&
                params.resources.reduce((acc, resource) => `${acc}\n- ${resource}`, 'Resources:')
        ]
            .filter(line => typeof line === 'string')
            .join('\n')
            .trim();
    }
}
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