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planetscale / beam

A simple message board for your organization or project
https://planetscale.com/blog/introducing-beam
MIT License
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Error Deploying to Vercel: Missing NEXT_APP_URL #57

Closed IAmLuisJ closed 2 years ago

IAmLuisJ commented 2 years ago

I'm not sure if anyone else has run into this, but when I was trying to deploy to Vercel the build kept failing because it said I was missing NEXT_APP_URL, but the NextAuth.JS documentation says this variable isn't required when deploying to Vercel.

I double checked that "Automatically expose System Environment Variables" was turned on as well.

Error: `

Build error occurred

21:42:36.838 | TypeError: ======================================== 21:42:36.838 | 💨 Missing environment variables: 21:42:36.839 | NEXT_APP_URL: Missing value or empty string 21:42:36.839 | ======================================== 21:42:36.840 | at d (/vercel/path0/node_modules/envsafe/dist/envsafe.cjs.production.min.js:1:3206) 21:42:36.840 | at exports.envsafe (/vercel/path0/node_modules/envsafe/dist/envsafe.cjs.production.min.js:1:4852) 21:42:36.840 | at Object.5395 (/vercel/path0/.next/server/pages/sign-in.js:81:37) 21:42:36.841 | at webpack_require (/vercel/path0/.next/server/webpack-runtime.js:25:42) 21:42:36.841 | at webpack_exec (/vercel/path0/.next/server/pages/sign-in.js:368:39) 21:42:36.843 | at /vercel/path0/.next/server/pages/sign-in.js:369:66 21:42:36.844 | at Function.__webpack_require__.X (/vercel/path0/.next/server/webpack-runtime.js:182:21) 21:42:36.844 | at /vercel/path0/.next/server/pages/sign-in.js:369:47 21:42:36.845 | at Object. (/vercel/path0/.next/server/pages/sign-in.js:372:3) 21:42:36.845 | at Module._compile (internal/modules/cjs/loader.js:1085:14) { 21:42:36.845 | type: 'TypeError' 21:42:36.846 | } `

I was able to get it working by adding an environment variable for NEXT_APP_URL and a valid full URL.

From looking at the Vercel Documentation I wonder if this was changed to NEXT_PUBLIC_VERCEL_URL

If others are seeing this issue maybe something can be added to the readme like "When deploying to vercel you may have to set the NEXT_APP_URL which is validated as a URL so be sure to include the full URL. For example: https:///www.appName.vercel.app in your Environment Variables."

bogdansoare commented 2 years ago

The NEXT_APP_URL env variable is mostly used for the slack integration and not for Next-auth https://github.com/planetscale/beam/blob/main/lib/slack.ts#L23 , so I think it will be a good idea to make it optional if the slack integration is not enabled.