Impossible to create an empty DatabaseQueryFilter to fetch all rows from a database

[AsFal]

Description

Impossible to create a DatabaseQuery with an empty DatabseQueryFilter. Fields that do not have empty values (such as embedded structs) cannot be omitted. Source

To Reproduce

Populate your environment variables with valid values for NOTION_SECRET_API_KEY and NOTION_DATABASE_ID and run the following code.

package main

import (
	"context"
	"fmt"
	"os"

	"github.com/dstotijn/go-notion"
)

func main() {
	client := notion.NewClient(os.Getenv("NOTION_SECRET_API_KEY"))
	rows, err := client.QueryDatabase(context.Background(), os.Getenv("NOTION_DATABASE_ID"), &notion.DatabaseQuery{
		PageSize: 10,
	})
	fmt.Println("======= ERROR ======")
	fmt.Println(err)
	fmt.Println("======= ROWS ======")
	fmt.Println(rows)
}

Given the following table

I go the following error

[maksim77]

Just specify nil instead &notion.DatabaseQuery

[AsFal]

Specifying nil for &notion.DatabaseQuery wouldn't allow the use of an empty filter with custom Sort, StartCursor, or PageSize values. This would prevent fetching all the entries from a database with more than 100 entries given the page size limit.

[dstotijn]

Fixed and released in v0.3.2.