@openapi-typescript-infra/service/src/config/validation.ts

An opinionated framework for building configuration driven services - web, api, or ob. Uses OpenAPI, pino logging, express, confit, Typescript and vitest.

import { ConfigurationSchema } from './schema.js';

export interface ConfigValidationError {
  path: string;
  message: string;
}

export type ConfigurationValidator<Config extends ConfigurationSchema> = (config: Config) => {
  success: boolean;
  errors: ConfigValidationError[];
};

export function validateConfiguration<Config extends ConfigurationSchema>(
  config: Config,
  validator: ConfigurationValidator<Config>,
) {
  const result = validator(config);
  if (!result.success) {
    const errorMessages = result.errors.map((e) => `  - ${e.path}: ${e.message}`).join('\n');
    throw new Error(`Configuration validation failed:
${errorMessages}`);
  }
}