Bug Report

Perspective version: 3.1.7 (older versions are likely to be affected as well)

Steps to Reproduce:

1. Add "@finos/perspective-viewer-d3fc": "^3.1.7" and "@finos/perspective-viewer-datagrid": "^3.1.7" to your package.json dependencies
2. Try to import them in any typescript file

Expected Result:

No import errors

Actual Result:

perspective-viewer-datagrid

In the case of @finos/perspective-viewer-datagrid the following error:

TS7016: Could not find a declaration file for module '@finos/perspective-viewer-datagrid'. '/project/node_modules/@finos/perspective-viewer-datagrid/dist/esm/perspective-viewer-datagrid.js' implicitly has an 'any' type.
There are types at '/project/node_modules/@finos/perspective-viewer-datagrid/index.d.ts', but this result could not be resolved when respecting package.json "exports". The '@finos/perspective-viewer-datagrid' library may need to update its package.json or typings.

My suggestion - amend the package.json "exports" in the following manner that is consistent with base @finos/perspective package:

"exports": {
    ".": {
      "types": "./index.d.ts",
      "default": "./dist/esm/perspective-viewer-datagrid.js"
    },
    "./dist/*": "./dist/*",
    "./package.json": "./package.json"
  },

This change fixes the error in my local environment.

perspective-viewer-d3fc

In the case of @finos/perspective-viewer-d3fc the following error:

TS7016: Could not find a declaration file for module '@finos/perspective-viewer-d3fc'. '/project/node_modules/@finos/perspective-viewer-d3fc/dist/esm/perspective-viewer-d3fc.js' implicitly has an 'any' type.
Try npm i --save-dev @types/finos__perspective-viewer-d3fc if it exists or add a new declaration (.d.ts) file containing declare module '@finos/perspective-viewer-d3fc';

My suggestion is the same - amend the package.json "exports" in the following manner:

"exports": {
    ".": {
      "types": "./dist/esm/types.d.ts", // or perhaps "./dist/esm/index.d.ts"? Idk, just guessing
      "default": "./dist/esm/perspective-viewer-d3fc.js"
    },
    ...

This change fixes the error in my local environment as well.

Environment:

Node: v23.1.0
OS: Manjaro Linux rolling

Additional Context:

• package manager: npm
• vite: v6