@arianaprojects/prisma-nestjs-crud-generator/src/error-handler.ts

code generator from Prisma schema

import { Dictionary } from '@prisma/sdk';
import { log } from './util';

export class GeneratorFormatNotValidError extends Error {
  config: Dictionary<string>;
  constructor(config: any) {
    super();
    this.config = config;
  }
}

export class GeneratorPathNotExists extends Error {}

export const handleGenerateError = (e: Error) => {
  if (e instanceof GeneratorFormatNotValidError) {
    log('Usage Example');
    log(`
generator prismaClassGenerator {
	provider	= "prisma-code-generator"
	output		= (string)
	dryRun   	= (boolean)
	useSwagger	= (boolean)
	seperateRelationFields = (boolean),
}`);
    log(`Your Input : ${JSON.stringify(e.config)}`);
    return;
  }
  if (e instanceof GeneratorPathNotExists) {
    log('path not valid in generator');
    return;
  }
};