ps73/feathers-prisma

import errors = require('@feathersjs/errors');
import { PrismaClientKnownRequestError, PrismaClientValidationError } from '@prisma/client/runtime/library';

function getType(v: number): string {
  let type = '';
  const cases = {
    common: v >= 1000 && v < 2000,
    query: v >= 2000 && v < 3000,
    migration: v >= 3000 && v < 4000,
    introspection: v >= 4000 && v < 5000,
  };
  Object.keys(cases).map((key) => {
    // @ts-ignore
    if (cases[key]) {
      type = key;
    }
    return key;
  });
  return type;
}

export function errorHandler(error: any, prismaMethod?: string) {
  let feathersError;
  if (error instanceof errors.FeathersError) {
    feathersError = error;
  } else if (error instanceof PrismaClientKnownRequestError) {
    const {
      code, meta, message, clientVersion,
    } = error;
    const errType = getType(Number(code.substring(1)));
    switch (errType) {
      case 'common':
        feathersError = new errors.GeneralError(message, { code, meta, clientVersion });
        break;
      case 'query':
        feathersError = new errors.BadRequest(message, { code, meta, clientVersion });
        if (code === 'P2025') {
        // @ts-ignore
          feathersError = new errors.NotFound(meta?.cause || 'Record not found.');
        }
        break;
      case 'migration':
        feathersError = new errors.GeneralError(message, { code, meta, clientVersion });
        break;
      case 'introspection':
        feathersError = new errors.GeneralError(message, { code, meta, clientVersion });
        break;
      default:
        feathersError = new errors.BadRequest(message, { code, meta, clientVersion });
        break;
    }
  } else if (error instanceof PrismaClientValidationError) {
    switch (prismaMethod) {
      case 'findUnique':
      case 'remove':
      case 'update':
      case 'delete':
        feathersError = new errors.NotFound('Record not found.');
        break;
      default:
        feathersError = new errors.GeneralError(error);
        break;
    }
  } else {
    feathersError = new errors.GeneralError(error);
  }

  throw feathersError;
}