Function parseSiweMessage

src/utils/siwe/parseSiweMessage.ts:28–64

(
  message: string,
)

 * @returns EIP-4361 fields object
 */
export function parseSiweMessage(
  message: string,
): Prettify<ExactPartial<SiweMessage>> {
  const { scheme, statement, ...prefix } = (message.match(prefixRegex)
    ?.groups ?? {}) as {
    address: Address
    domain: string
    scheme?: string
    statement?: string
  }
  const { chainId, expirationTime, issuedAt, notBefore, requestId, ...suffix } =
    (message.match(suffixRegex)?.groups ?? {}) as {
      chainId: string
      expirationTime?: string
      issuedAt?: string
      nonce: string
      notBefore?: string
      requestId?: string
      uri: string
      version: '1'
    }
  const resources = message.split('Resources:')[1]?.split('\n- ').slice(1)
  return {
    ...prefix,
    ...suffix,
    ...(chainId ? { chainId: Number(chainId) } : {}),
    ...(expirationTime
      ? { expirationTime: parseSiweDateTime(expirationTime) }
      : {}),
    ...(issuedAt ? { issuedAt: parseSiweDateTime(issuedAt) } : {}),
    ...(notBefore ? { notBefore: parseSiweDateTime(notBefore) } : {}),
    ...(requestId ? { requestId } : {}),
    ...(resources ? { resources } : {}),
    ...(scheme ? { scheme } : {}),
    ...(statement ? { statement } : {}),
  }
}

// https://regexr.com/80gdj
const prefixRegex =