使用 zod 对.env 文件约束

import { toast } from '@/components/ui/toast'
import { h } from 'vue'
import { z } from 'zod'

/**
 * Load .env file and validate it against the schema
 * Has this file, it will be loaded automatically by vite and we will be have environment variables available type
 * If EnvSchema Object has Key but not in .env file, it will be have a error in page
 */

const EnvSchema = z.object({
    // Add your environment variables here, for example:
    VITE_API_BASE_URL: z.string().url(),
})

export type env = z.infer<typeof EnvSchema>

const { data: env, error } = EnvSchema.safeParse(import.meta.env)

if (error) {
    console.error('❌ Invalid env')
    console.error(error.flatten().fieldErrors)
    toast({
        title: `Env error: you should check your .env file`,
        variant: 'destructive',
        description: h('pre', { class: 'mt-2 w-[340px] rounded-md bg-slate-950 p-4' }, h('code', { class: 'text-white' }, JSON.stringify(error, null, 2))),
    })
}

export default env!

import { config } from "dotenv";
import { expand } from "dotenv-expand";
import { z } from "zod";

expand(config());

const EnvSchema = z.object({
    NODE_ENV: z.string().default("development"),
    LOG_LEVEL: z.enum(["fatal", "error", "warn", "info", "debug", "trace", "silent"]),
    PORT: z.coerce.number().default(9999),

    // database
    DB_HOST: z.string(),
    DB_USER: z.string(),
    DB_PASSWORD: z.string(),
    DB_NAME: z.string(),
    DB_PORT: z.coerce.number(),
    DATABASE_URL: z.string(),

    // jwt
    ACCESS_TOKEN_SECRET: z.string(),
    REFRESH_TOKEN_SECRET: z.string(),
    COOKIE_SECRET: z.string(),
});

export type env = z.infer<typeof EnvSchema>;

const { data: env, error } = EnvSchema.safeParse(process.env);
if (error) {
    console.error("❌ Invalid env");
    console.error(error.flatten().fieldErrors);
    process.exit(1);
}

export default env!;