How to set proxy or get base url?

I asked on spectrum but got no response so i’m asking here again. i apologize about that.

I want to use Now lambda with Nextjs for my next app but i don’t know how to set the proxy.

In CRA we simply add it to package.json but i don’t know how to do it in Next. I want to be able to dynamically change API_URL to localhost when testing lambdas locally

That’s what i have for now.

infra.config.json

{
    "api_url": {
        "value": "https://test-nextjs.sarkurd.now.sh/api"
    }
}

next.config.js

const withSass = require('@zeit/next-sass')
const API_URL= require("./infra.config.json").api_url.value;

module.exports = withSass({
    target: "serverless",
    env: {
        API_URL
    }
});

now.json

{
    "version": 2,
    "name": "test-nextjs",
    "builds": [
        {
            "src": "next.config.js",
            "use": "@now/next"
        },
        {
            "src": "api/*.js",
            "use": "@now/node"
        }
    ]
}

I want to be able to dynamically change API_URL to localhost when testing lambdas locally

[Timer]

Oh I’m sorry @SarKurd – it seems I misunderstood.

In this regard the proper solution is a build time environment variable that is different on your maching or during dev than it is while deployed. You could use phases to solve this.

[Janpot]

two things

1. passing environment variables is currently broken using now dev (should hopefully be published soon)
2. there’s some example that seems to “automatically” do what you want, but some potential issues with it .