Fluent-json-schema typescript error [help]

[giovanni-bertoncelli]

💬 Question here

I'm creating a demo project using Platformatic at the latest version (see package.json under). I'm creating some plugins for the project in which I'm using fluent-json-schema that seems to have some Typescript issue. In fact I'm receiving this error:

tsconfig.json:

{
  "compilerOptions": {
    "module": "commonjs",
    "esModuleInterop": true,
    "target": "es2020",
    "sourceMap": true,
    "pretty": true,
    "noEmitOnError": true,
    "incremental": true,
    "outDir": "dist"
  },
  "watchOptions": {
    "watchFile": "fixedPollingInterval",
    "watchDirectory": "fixedPollingInterval",
    "fallbackPolling": "dynamicPriority",
    "synchronousWatchDirectory": true,
    "excludeDirectories": [
      "**/node_modules",
      "dist"
    ]
  }
}

Package.json:

{
  "scripts": {
    "start": "platformatic start",
    "dev": "platformatic start --watch",
    "clean": "rm -fr ./dist",
    "build": "platformatic compile",
    "migrate": "platformatic db migrations apply"
  },
  "devDependencies": {
    "fastify": "^4.22.2",
    "typescript": "~5.2.0"
  },
  "dependencies": {
    "@fastify/autoload": "^5.7.1",
    "@fastify/env": "^4.2.0",
    "@fastify/oauth2": "^7.4.0",
    "@platformatic/db": "^0.40.0",
    "fastify-plugin": "^4.5.1",
    "fluent-json-schema": "^4.1.1",
    "platformatic": "^0.40.0"
  },
  "engines": {
    "node": "^18.8.0"
  }
}

Your Environment

• node version: v18.17.1
• fastify version: 4.22.2
• os: Mac

[mcollina]

Could you include a complete example?

[mcollina]

A github repo will be fine.

[giovanni-bertoncelli]

There you go: https://github.com/giovanni-bertoncelli/platformatic-demo 👍🏻

[leorossi]

Found the bug

In fluent-json-schema type definition there are two interfaces called SchemaOptions

• https://github.com/fastify/fluent-json-schema/blob/master/types/FluentJSONSchema.d.ts#L70
• https://github.com/fastify/fluent-json-schema/blob/master/types/FluentJSONSchema.d.ts#L212

One is exported the other not.

Changing that file adding the missing export will make it work but of course we can't do that as it's an external dependency

any clue @mcollina ? Maybe a TS option to add?

[giovanni-bertoncelli]

Maybe it can be declared only once?

[leorossi]

Opened a PR in fluent-json-schema to fix this.

[giovanni-bertoncelli]

Thank you all @leorossi @mcollina