> For the complete documentation index, see [llms.txt](https://docs.trustlesswork.com/trustless-work/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.trustlesswork.com/trustless-work/v1-es/dapps-oss/escrow-lab/ayudantes.md).

# Ayudantes

Algunos ayudantes importantes que necesitaremos.

## Monedero válido

Para saber si el Monedero Stellar es válido, hemos creado una función personalizada.

```typescript
export const isValidWallet = (wallet: string) => {
  // Verificar que el monedero tenga 56 caracteres y comience con 'G'
  if (wallet.length !== 56 || wallet[0] !== "G") {
    return false;
  }

  // Verificar que el monedero sea una cadena base32 válida
  const base32Regex = /^[A-Z2-7]+$/;
  if (!base32Regex.test(wallet)) {
    return false;
  }

  return true;
};

```

## Construir Escrow desde la Respuesta

El `Inicializar Escrow` la función devuelve el escrow inicializado, pero necesitamos estructurarlo correctamente para almacenarlo adecuadamente en el contexto.

```typescript
import {
  InitializeEscrowResponse,
  UpdateEscrowResponse,
} from "@/@types/escrows/escrow-response.entity";
import { Escrow } from "@/@types/escrows/escrow.entity";

/**
 * Construye un objeto Escrow a partir de un InitializeEscrowResponse, esta estructura es
 * utilizada para crear un nuevo escrow basado en la entidad del Escrow
 */
export const buildEscrowFromResponse = (
  result: InitializeEscrowResponse | UpdateEscrowResponse,
  walletAddress: string
): Escrow => ({
  contractId: result.contractId,
  signer: walletAddress || "",
  engagementId: result.escrow.engagementId,
  title: result.escrow.title,
  description: result.escrow.description,
  amount: result.escrow.amount,
  platformFee: result.escrow.platformFee,
  receiverMemo: result.escrow.receiverMemo ?? 0,
  roles: {
    approver: result.escrow.roles.approver,
    serviceProvider: result.escrow.roles.serviceProvider,
    platformAddress: result.escrow.roles.platformAddress,
    releaseSigner: result.escrow.roles.releaseSigner,
    disputeResolver: result.escrow.roles.disputeResolver,
    receiver: result.escrow.roles.receiver,
  },
  flags: {
    disputeFlag: false,
    releaseFlag: false,
    resolvedFlag: false,
  },
  trustline: {
    address: result.escrow.trustline.address,
    decimals: result.escrow.trustline.decimals,
  },
  milestones: result.escrow.milestones.map((m) => ({
    description: m.description,
    status: "pending",
    evidence: "",
    approvedFlag: false,
  })),
});

```


---

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