Declaring type in fetch function

Abdab 0
Viewed 30

Screenshot of fetch function I am trying to fetch information from notion database in a Next.js Typescript project. So far I'm getting the error to set up type for databse_id value. How do I declare its type?

next.js typescript
1 Answers

process.env.NEXT_PUBLIC_NOTION_DB returns a value of type string | undefined.
You can avoid the error either checking that it is not undefined:

export async function getStaticProps() {
    if (!process.env.NEXT_PUBLIC_NOTION_DB) return { props: { }}
    const res = await notion.database.query({
        database_id: process.env.NEXT_PUBLIC_NOTION_DB
    })
    ...
};

Or, providing a default value to it:

export async function getStaticProps() {
    const res = await notion.database.query({
        database_id: process.env.NEXT_PUBLIC_NOTION_DB || ''
    })
    ...
};
lpizzinidev0
Related