can’t set property 'family' of MongooseModule options

[vincentdd]

I'm submitting a...

[ ] Regression 
[x] Bug report
[ ] Feature request
[ ] Documentation issue or request
[ ] Support request => Please do not submit support request here, instead post your question on Stack Overflow.

Current behavior

can't set property 'family' of options in MongooseModule.forRoot
console log when compile:

src/app.module.ts:24:58 - error TS2345: Argument of type '{ useNewUrlParser: boolean; useCreateIndex: boolean; useFindAndModify: boolean; autoIndex: boolean; reconnectTries: number; reconnectInterval: number; poolSize: number; bufferMaxEntries: number; connectTimeoutMS: number; socketTimeoutMS: number; family: number; }' is not assignable to parameter of type 'MongooseModuleOptions'.
Types of property 'family' are incompatible.
Type 'number' is not assignable to type '4 | 6'.

24 imports: [BillsModule, MongooseModule.forRoot(mongoDB, options)],

Expected behavior

be able to set property 'family' to 4

Minimal reproduction of the problem with instructions

my options：

const options = {
  useNewUrlParser: true,
  useCreateIndex: true,
  useFindAndModify: false,
  autoIndex: false, // Don't build indexes
  reconnectTries: Number.MAX_VALUE, // Never stop trying to reconnect
  reconnectInterval: 500, // Reconnect every 500ms
  poolSize: 10, // Maintain up to 10 socket connections
  // If not connected, return errors immediately rather than waiting for reconnect
  bufferMaxEntries: 0,
  connectTimeoutMS: 10000, // Give up initial connection after 10 seconds
  socketTimeoutMS: 45000, // Close sockets after 45 seconds of inactivity
  family: 4 // Use IPv4, skip trying IPv6
}

What is the motivation / use case for changing the behavior?

Environment

Nest version: 6.10.14
@types/mongoose:  5.7.0

 
For Tooling issues:
- Node version: 12.9.1
- Platform:   Windows

Others:

[vincentdd]

I found my mistake.I should call forRoot like this:

MongooseModule.forRoot(mongoDB, {
    useNewUrlParser: true,
    useCreateIndex: true,
    useFindAndModify: false,
    autoIndex: false, // Don't build indexes
    reconnectTries: Number.MAX_VALUE, // Never stop trying to reconnect
    reconnectInterval: 500, // Reconnect every 500ms
    poolSize: 10, // Maintain up to 10 socket connections
    // If not connected, return errors immediately rather than waiting for reconnect
    bufferMaxEntries: 0,
    connectTimeoutMS: 10000, // Give up initial connection after 10 seconds
    socketTimeoutMS: 45000, // Close sockets after 45 seconds of inactivity
    family: 4 // Use IPv4, skip trying IPv6
  })

sorry ,I'm freshman for TS