Error message: TypeScript Partial Type does not match the expected type

After previously working without any issues, my code is now encountering a type error related to the logEntry:

The following type error is occurring: Type '{ raw: string; timestamp: number; }' is not assignable to type 'Partial<ILogEntry>'.  

    The properties of 'constructor' within each type are incompatible.
    Specifically, the type 'Function' lacks necessary properties compared to type 'Model<ILogEntry, {}>': base, 
    baseModelName, discriminators, modelName, and 59 other properties. (2322)

I need help on the correct implementation for this issue. Below is an example of the affected code snippet:

import { Schema, model, Model, Document } from "mongoose";
interface ILogEntry extends Document {
raw: string;
timestamp?: number;

}
const logEntry: Partial<ILogEntry> = {
            raw: "hey",
            timestamp: 213213,
        };

Answer №1

It appears that the signature of the Document has been altered. If you do not intend to utilize the constructor, you may choose to exclude it, if it aligns with your requirements.

const logEntry: Partial<Omit<ILogEntry, 'constructor'>> = {
  raw: "hey",
  timestamp: 213213,
};

To prevent exceeding the length, consider adding a type for it:

type PartialObj<T> = Partial<Omit<T, 'constructor'>>;

const logEntry: PartialObj<ILogEntry> = {
  raw: "hey",
  timestamp: 213213,
};

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