graphql-compose
Type 'Cat' is not assignable to type 'Document<any, any, any>'
Latest version installed
package.json
"@nestjs/apollo": "^10.1.7",
"@nestjs/common": "^9.0.0",
"@nestjs/core": "^9.0.0",
"@nestjs/graphql": "^10.1.7",
"@nestjs/mongoose": "^9.2.1",
"@nestjs/platform-express": "^9.0.0",
"apollo-server-express": "^3.11.1",
"graphql": "^16.6.0",
"graphql-compose": "9.0.10",
"graphql-compose-mongoose": "9.7.2",
"mongoose": "6.8.3",
Following instructions and try using graphql-compose-mongoose in NestJS project
import { Field, Int, ObjectType } from '@nestjs/graphql';
import { Prop, Schema, SchemaFactory } from '@nestjs/mongoose';
import { schemaComposer } from 'graphql-compose';
import { composeMongoose } from 'graphql-compose-mongoose';
import mongoose from 'mongoose';
@Schema({ timestamps: true })
@ObjectType()
export class Cat {
@Prop()
@Field(() => String)
name: string;
@Prop()
@Field(() => Int)
age: number;
@Prop()
@Field(() => String)
breed: string;
}
const schema = SchemaFactory.createForClass(Cat);
const CatModel = mongoose.model('Cat', schema);
const CatTC = composeMongoose(CatModel, {});
schemaComposer.Query.addFields({
catById: CatTC.mongooseResolvers.findById(),
});
export const CatSchema = schemaComposer.buildSchema();
But got error at const CatTC = composeMongoose(CatModel, {});
Argument of type 'Model<Cat, {}, {}, {}, Schema<Cat, Model<Cat, any, any, any, any>, {}, {}, {}, {}, DefaultSchemaOptions, Cat>>' is not assignable to parameter of type 'Model<Document<any, any, any>, {}, {}, {}, any>'.
The types returned by 'castObject(...)' are incompatible between these types.
Type 'Cat' is not assignable to type 'Document<any, any, any>'.ts(2345)
~~I can pass any generic const CatModel = mongoose.model<any>('Cat', schema); but still having problem
NestJS saying~~
[Nest] 11348 - 15.01.2023, 20:05:21 ERROR [ExceptionHandler] The 2nd parameter to `mongoose.model()` should be a schema or a POJO
Error: The 2nd parameter to `mongoose.model()` should be a schema or a POJO
Schema injected in nestjs at module file
cat.module.ts
import { Module } from '@nestjs/common';
import { MongooseModule } from '@nestjs/mongoose';
import { Cat, CatSchema } from './cat.model';
import { CatService } from './cat.service';
import { CatResolver } from './cat.resolver';
@Module({
imports: [MongooseModule.forFeature([{ name: Cat.name, schema: CatSchema }])],
providers: [CatService, CatResolver],
})
export class CatModule {}
Another way - cloning example and seen you using any heneric too export const Category = model<any>('Category', CategorySchema);
If i remove it i got error
Argument of type 'Model<unknown, {}, {}>' is not assignable to parameter of type 'Model<Document<any, any, any>, {}, {}>'.
Types of property 'find' are incompatible.
Type '{ (callback?: Callback<(Document<any, any, unknown> & { _id: unknown; })[]>): Query<(Document<any, any, unknown> & { _id: unknown; })[], Document<any, any, unknown> & { _id: unknown; }, {}, unknown>; (filter: FilterQuery<...>, callback?: Callback<...>): Query<...>; (filter: FilterQuery<...>, projection?: any, option...' is not assignable to type '{ (callback?: Callback<(Document<any, any, any> & { _id: any; })[]>): Query<(Document<any, any, any> & { _id: any; })[], Document<any, any, any> & { ...; }, {}, Document<...>>; (filter: FilterQuery<...>, callback?: Callback<...>): Query<...>; (filter: FilterQuery<...>, projection?: any, options?: QueryOptions, callb...'.
Types of parameters 'callback' and 'callback' are incompatible.
Types of parameters 'result' and 'result' are incompatible.
Type 'unknown[]' is not assignable to type 'Document<any, any, any>[]'.
Type 'unknown' is not assignable to type 'Document<any, any, any>'.ts(2345)
If update packages to latest version - got same error as in my own project
Based on the above, there are two questions:
- How using package without generic?
- How integrate with NestJS?
I found ansver on my 2 question compose schema
export const UserSchema = SchemaFactory.createForClass(User);
const UserModel = mongoose.model<any>('User', UserSchema);
const UserTC = composeMongoose(UserModel, {});
schemaComposer.Query.addFields({
userById: UserTC.mongooseResolvers.findById(),
getUser: UserTC.mongooseResolvers.findOne(),
getAllUsers: UserTC.mongooseResolvers.findMany(),
});
schemaComposer.Mutation.addFields({
updateUser: UserTC.mongooseResolvers.updateOne(),
removeUser: UserTC.mongooseResolvers.removeOne(),
});
const composeSchema = schemaComposer.buildSchema();
writeFileSync(join(process.cwd(), `/src/gql-schema/${User.name}.graphql`), printSchema(composeSchema));
connect compose schemas files to NestJS server
@Module({
imports: [
MongooseModule.forRootAsync({
imports: [ConfigModule],
useFactory: async (configService: ConfigService) => ({
uri: process.env.MONGO_URI || configService.get('MONGO_URI'),
useNewUrlParser: true,
useUnifiedTopology: true,
}),
inject: [ConfigService],
}),
GraphQLModule.forRoot<ApolloDriverConfig>({
driver: ApolloDriver,
- autoSchemaFile: join(process.cwd(), 'src/schema.gql'),
+ typePaths: ['./**/*.graphql'],
}),
UserModule,
],
controllers: [],
providers: [],
})
export class AppModule {}
but i steel have first question
Did you get any resolution for your first question?
graphql-compose-mongoose : 9.8.0 mongoose: 7.6.4
The basic code from the site fails TS.
import { composeMongoose } from "graphql-compose-mongoose"
import mongoose from "mongoose"
const LanguagesSchema = new mongoose.Schema({
language: String,
skill: {
type: String,
enum: ["basic", "fluent", "native"],
},
})
const UserSchema = new mongoose.Schema({
name: String, // standard types
age: {
type: Number,
index: true,
},
ln: {
type: [LanguagesSchema], // you may include other schemas (here included as array of embedded documents)
default: [],
alias: "languages", // in schema `ln` will be named as `languages`
},
contacts: {
// another mongoose way for providing embedded documents
email: String,
phones: [String], // array of strings
},
gender: {
// enum field with values
type: String,
enum: ["male", "female"],
},
someMixed: {
type: mongoose.Schema.Types.Mixed,
description: "Can be any mixed type, that will be treated as JSON GraphQL Scalar Type",
},
})
const User = mongoose.model("User", UserSchema)
const customizationOptions = {} // left it empty for simplicity, described below
const UserTC = composeMongoose(**User**, customizationOptions) <=====
Argument of type 'Model<{ ln: DocumentArray<{ language?: string | undefined; skill?: "basic" | "fluent" | "native" | undefined; }>; name?: string | undefined; age?: number | undefined; contacts?: { ...; } | undefined; gender?: "male" | ... 1 more ... | undefined; someMixed?: any; }, ... 4 more ..., Schema<...>>' is not assignable to parameter of type 'Model<Document<any, any, any>, {}, {}, {}, Document<unknown, {}, Document<any, any, any>> & Document<any, any, any> & { _id: ObjectId; }, any>'. The types returned by 'castObject(...)' are incompatible between these types. Type '{ ln: DocumentArray<{ language?: string | undefined; skill?: "basic" | "fluent" | "native" | undefined; }>; name?: string | undefined; age?: number | undefined; contacts?: { ...; } | undefined; gender?: "male" | ... 1 more ... | undefined; someMixed?: any; }' is not assignable to type 'Document<any, any, any>'.ts(2345)
