Create a new transfer

export interface Response {
  /**
   * The unique ID of the transfer
   */
  id: string;
  /**
   * The current state of the transfer
   */
  state: "awaiting_funds" | "pending" | "completed" | "failed";
  /**
   * The ID of the customer that you're moving funds on behalf of
   */
  onBehalfOf: string;
  /**
   * The source amount of the transfer
   */
  amount: string;
  /**
   * Source of the transfer
   */
  source: {
    /**
     * The payment rail to use for the transfer
     */
    paymentRail: "card" | "wire" | "apple_pay";
    /**
     * The source currency code
     */
    currency: string;
    /**
     * The wallet ID to which we'll send the funds from
     */
    walletId?: string;
  };
  /**
   * Destination of the transfer
   */
  destination: {
    /**
     * The destination currency
     */
    currency: string;
    /**
     * The wallet ID to which we'll send the funds to
     */
    walletId?: string;
    /**
     * The crypto wallet address to which we'll send the funds to
     */
    walletAddress?: string;
  };
  /**
   * Instructions for the source deposit (if applicable)
   */
  sourceInstructions?: {
    /**
     * The signed URL for user to complete the payment (applicable for on-ramp transfers)
     */
    signedUrl: string;
  };
  /**
   * The date and time the transfer was created
   */
  createdAt: string;
  /**
   * The date and time the transfer was last updated
   */
  updatedAt: string;
}