Can't use a custom Pothos plugin - "Failed to extract schema: No plugin named myPlugin was registered"

[dallonf]

Here's a minimal repro: https://github.com/dallonf/sst-pothos-plugin-repro

It includes a straightforward custom Pothos plugin that doesn't actually do anything visible.

When running with npm run dev, I get this error:

✖ Pothos: Failed to extract schema:
No plugin named myPlugin was registered

And looking at the generated out.mjs file, it indeed is missing the plugin registration, only including the constant name itself:

var pluginName = "myPlugin";
// packages/functions/src/graphql/builder.ts
import SchemaBuilder2 from "@pothos/core";

// packages/functions/src/graphql/MyPlugin/index.ts

var MyPlugin_default = pluginName;
// packages/functions/src/graphql/builder.ts
var builder = new SchemaBuilder2({
  plugins: [MyPlugin_default]
});

I would expect to be able to write custom Pothos plugins in an SST project!

[jayair]

Not sure when we'll get to this because of Ion but happy to review PRs for it.

[dallonf]

Out of curiosity, does this issue not exist in Ion?

[jayair]

We haven't really added Pothos support there yet.