[Typscript] Wrong type for `new Model(doc)`

[Zenthae]

Do you want to request a feature or report a bug?

bug

What is the current behavior?

When using new Model(doc) to create a new model and the save() it. the type of doc is always any which break the auto-completion for properties added by the user model.

If the current behavior is a bug, please provide the steps to reproduce.

Quick Start example from the website

tsconfig.json

{
  "compilerOptions": {
    "target": "ES2020",
    "module": "commonjs",
    "outDir": "./dist",
    "rootDir": "./src",
    "strict": true,
    "moduleResolution": "node",
    "types": ["mongoose"],
    "esModuleInterop": true,
    "skipLibCheck": true,
    "forceConsistentCasingInFileNames": true
  },
  "exclude": ["node_modules"],
  "include": ["src/**/*.ts"]
}

What is the expected behavior?

instead of having any it should use the provided type.

What are the versions of Node.js, Mongoose and MongoDB you are using? Note that "latest" is not a version.

nodejs: v16.1.0
mongoose: 5.12.10

[DVGY]

const Kitten = mongoose.model('Kitten', kittenSchema);

Is this line added correctly in your code ?

[Zenthae]

yes it is, it's the line hidden by Vscode popup

[DVGY]

yes it is, it's the line hidden by Vscode popup
@Zenthae change the line
from this

const Kitten = mongoose.model('Kitten', kittenSchema);

to this
const Kitten = mongoose.model<Ikitten>('Kitten', kittenSchema);

[Zenthae]

same

[DVGY]

same

@Zenthae one more thing make sure your interface IKitten extends Document is like this

[Zenthae]

still the same issue

[DVGY]

still the same issue

can you share on codepen ?

[vkarpov15]

Make sure you're running Mongoose >= 5.12.6, we changed this type definition with #10074 so either you're using an older version of Mongoose or VSCode is picking up the wrong version of Mongoose type definitions.