controller-error-handling.ts

controller-error-handling.ts

import httpStatus from "http-status";

export const makeError = <TErrorName extends string>(
  name: TErrorName,
  message?: string
) => ({
  name,
  message,
});

interface ControllerErrorHandler {
  handle: (error: unknown) => ControllerError;
}

export interface ControllerError {
  error: { name: string };
}

export const mapErrors = (
  mapping: Record<string, number>,
  context: { setStatus: (code: number) => void }
): ControllerErrorHandler => {
  mapping = {
    ...mapping,
    ZodError: httpStatus.BAD_REQUEST,
  };

  return {
    handle: (error: unknown) => {
      console.error(error);
      const name =
        error &&
        typeof error === "object" &&
        "name" in error &&
        typeof error.name === "string" &&
        error.name in mapping
          ? error.name
          : "Unknown";
      const code =
        (!error ? httpStatus.INTERNAL_SERVER_ERROR : mapping[name]) ||
        httpStatus.INTERNAL_SERVER_ERROR;
        
      context.setStatus(code);

      return {
        error: {
          name,
        },
      };
    },
  };
};