Module import/export mismatch

[shubham-jasani]

Describe the bug

@supabase/supabase-js is trying to import from ../module/index.js
It expects a default export, but can't find one, app goes stuck

Library affected

supabase-js

Reproduction

No response

Steps to reproduce

Just install the not module with latest version.

System Info

System:
    OS: macOS 15.6.1
    CPU: (8) arm64 Apple M2
    Memory: 101.81 MB / 16.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 20.18.0 - /Users/shubhamjasani/.nvm/versions/node/v20.18.0/bin/node
    npm: 10.8.2 - /Users/shubhamjasani/.nvm/versions/node/v20.18.0/bin/npm
    pnpm: 10.7.0 - /opt/homebrew/bin/pnpm
  Browsers:
    Chrome: 143.0.7499.110
    Safari: 18.6
  npmPackages:
    @supabase/ssr: ^0.5.0 => 0.5.0 
    @supabase/supabase-js: ^2.45.0 => 2.45.0

Used Package Manager

npm

Logs

No response

Validations

• Follow our Code of Conduct
• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Make sure this is a Supabase JS Library issue and not an issue with the Supabase platform. If it's a Supabase platform related bug, it should likely be reported to supabase/supabase instead.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion or join our Discord Chat Server.
• The provided reproduction is a minimal reproducible example of the bug.

[7ttp]

hi @shubham-jasani thanks for reporting 💚

i tested this on the latest version (2.87.3) and it wasn't reproducible on my end!

can u please check and confirm if the issue still persists?

[shubham-jasani]

@7ttp Hi,
Still, I am getting this error.

node_modules/@supabase/supabase-js/dist/esm/wrapper.mjs (46:10): "default" is not exported by "node_modules/@supabase/supabase-js/dist/module/index.js", imported by "node_modules/@supabase/supabase-js/dist/esm/wrapper.mjs". node_modules/@supabase/supabase-js/dist/esm/wrapper.mjs (94:21): "default" is not exported by "node_modules/@supabase/supabase-js/dist/module/index.js", imported by "node_modules/@supabase/supabase-js/dist/esm/wrapper.mjs".

[shubham-jasani]

@7ttp If I revert to 2.87.1, then it works without any error.

[7ttp]

@shubham-jasani i tested it with vite/rollup and webpack - was able to reproduce the issue 👍

the problem is in wrapper.mjs - it references index.default but dist/module/index.js has no default export. bundlers doing static analysis (rollup, webpack) flag this as an error.

@mandarini i believe the fix would be to use direct named imports instead of index.default || index:
if u agree i can move ahead with a PR

[Dudeonyx]

Having the same issues with webpack.

./node_modules/@supabase/supabase-js/dist/esm/wrapper.mjs
Attempted import error: '../module/index.js' does not contain a default export (imported as 'index').

Edit: going back to 2.87.1, it works

[Dudeonyx]

possibly related to #1942

[juliangorge]

another possibly related: #1953 (comment)

[mandarini]

@7ttp can you please create a PR? Can anyone also please give me a small reproduction repository?

This needs to be fixed at its core, I feel we're monkey patching these days. I have a plan to add tsup, but will happen in the new year. Sorry everyone for the back and forths these days.

[AkifhanIlgaz]

I got same issue. I was able to work this out by hard-coding supabase imports like:
import { createServerClient } from "@supabase/ssr/dist/main/createServerClient";

[juliangorge]

I got same issue. I was able to work this out by hard-coding supabase imports like: import { createServerClient } from "@supabase/ssr/dist/main/createServerClient";

I add import { createBrowserClient } from "@supabase/ssr/dist/main/createBrowserClient"; as well