Function projection

framework/framework/api.ts:78–96

(input: T, schema: S, serializeCtx?: any)

    };

export const projection = <T, S extends ProjectionSchema<T>>(input: T, schema: S, serializeCtx?: any): Projection<T, S> => {
    if (typeof input !== 'object' || input === null) throw new Error('Input must be an object.');
    type R = Projection<T, S>;
    if ('serialize' in input && typeof (input as any).serialize === 'function') {
        input = (input as any).serialize(serializeCtx);
    }
    if (Array.isArray(schema)) schema = Object.fromEntries(schema.map((s) => [s, 1])) as S;
    if (Array.isArray(input)) {
        return input.map((item) => projection(item, schema, serializeCtx)) as R;
    }
    const result = {} as R;
    for (const key of Reflect.ownKeys(input as any)) {
        const schemaIt = schema[key];
        if (!schemaIt) continue;
        if (schemaIt === 1 || !input[key]) result[key] = input[key];
        else result[key] = projection(input[key], schemaIt, serializeCtx);
    }
    return result;
};

export interface ApiExecutionContext {
}