Beginner: How to Update Supabase Database from Typescript

Sorry for the beginner question. I'm a database person who's new to javascript (and app development in general).

I'm having trouble initializing my connection to Supabase from javascript. I've tried the method described here (https://supabase.com/docs/reference/javascript/initializing) and in screenshot, but it gives me this error:

Error [ERR_MODULE_NOT_FOUND]: Cannot find package '@supabase/supabase-js' imported from C:\Git\Supabase\supabase\functions\hexnode_db_update\index.ts

Am I just missing some basic component of how you do library imports in js?

JavaScript: Initializing | Supabase Docs

Supabase API reference for JavaScript: Initializing

silentworks•9/26/25, 8:32 PM

That won't work unless you are using Vite or something like that or .mjs.mjs files. It's probably best to show what you are trying to use this in.

DevsrealmGuy•9/26/25, 8:45 PM

npm install

npm install

MyLizardOP•9/26/25, 10:23 PM

I tried "npm install supabase" and that didn't do it.

The goal is to trigger off a new line in a table, call an external API to pull a bunch of information, and then fill up the rest of the columns in that table with the additional information. Here are a couple of scripts in progress that do some of that.

The API call is fine, and I think I can figure out the json parsing. The thing I'm really missing is the connection to postgres so I can run the row update.

MyLizardOP•9/27/25, 1:06 AM

Turns out @DevsrealmGuy was right, but I had to run the full npm install @supabase/supabase-js.

Also, running as an .mjs file avoided a bunch of warnings.

Thanks!

Beginner: How to Update Supabase Database from Typescript

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