The getStaticProps function may return a props object that is empty

Question

The getStaticProps function may return a props object that is empty

I'm currently working on rendering a landing page using getStaticProps in Next.js, but I'm encountering unexpected behavior. Here's the snippet of my component:

import { GetStaticProps } from 'next'

const Brief = (props) => {

    console.log(JSON.stringify(props)) // returning an empty object
    return (
        <>
            {props[0]}
            {props[1]}
            {props[2]}
        </>
    )
}

export const getStaticProps: GetStaticProps = async (context) => {
    const WhatIUse = <div className="WhatIUse">What technology I use</div>

    const introduction = <div className="introduction">Introduction to the page</div>

    const ContactInfo = <div className="ContactInfo">Where you can contact me</div>

    return {
        props: [introduction, WhatIUse, ContactInfo]
    }
}

export default Brief

The problem I am facing is that the logging statement indicates that props is being returned as an empty object. What could be causing this issue?

typescript next.js

Answer 1

Answer №1

Ensure that the function is being utilized on a page file specifically (files housed within the 'pages' directory)

I encountered a similar issue when I mistakenly used the function within a component, leading to an empty object

Once I switched to using it in a pages file, the function worked as intended

Answer 2

Ensure that the function is being utilized on a page file specifically (files housed within the 'pages' directory)

I encountered a similar issue when I mistakenly used the function within a component, leading to an empty object

Once I switched to using it in a pages file, the function worked as intended

Answer 3

Answer №2

There seems to be a couple of issues with your current approach.

Firstly, when using getStaticProps, the variable props should consist of values that can be serialized as JSON. It appears you are passing an array containing JSX elements, which are not serializable.

Secondly, it's important to note that the purpose of getStaticProps is data fetching for pre-rendering, not for generating JSX directly. The generation of JSX should take place within the component itself.

Below is a practical example based on the code you provided:

const Brief = (props) => {
    console.log(props) // Logs the props passed in `getStaticProps`

    return (
        <>
            <div className="WhatIUse">{props.data[0]}</div>
            <div className="introduction">{props.data[1]}</div>
            <div className="ContactInfo">{props.data[2]}</div>
        </>
    )
}

export const getStaticProps: GetStaticProps = async (context) => {
    const WhatIUse = 'What I use'
    const introduction = 'Introduction'
    const ContactInfo = 'Where to find me'

    return {
        props: {
            data: [introduction, WhatIUse, ContactInfo]
        }
    }
}

export default Brief

Answer 4

There seems to be a couple of issues with your current approach.

Firstly, when using getStaticProps, the variable props should consist of values that can be serialized as JSON. It appears you are passing an array containing JSX elements, which are not serializable.

Secondly, it's important to note that the purpose of getStaticProps is data fetching for pre-rendering, not for generating JSX directly. The generation of JSX should take place within the component itself.

Below is a practical example based on the code you provided:

const Brief = (props) => {
    console.log(props) // Logs the props passed in `getStaticProps`

    return (
        <>
            <div className="WhatIUse">{props.data[0]}</div>
            <div className="introduction">{props.data[1]}</div>
            <div className="ContactInfo">{props.data[2]}</div>
        </>
    )
}

export const getStaticProps: GetStaticProps = async (context) => {
    const WhatIUse = 'What I use'
    const introduction = 'Introduction'
    const ContactInfo = 'Where to find me'

    return {
        props: {
            data: [introduction, WhatIUse, ContactInfo]
        }
    }
}

export default Brief

Answer 5

Answer №3

It is possible that when you call the getStaticProps, getServerSideProps, or getStaticPaths function, it is being done from a location outside of the pages or app directory (version 13). In this case, Next.js may return an empty props object without any error message to indicate the issue.

Answer 6

It is possible that when you call the getStaticProps, getServerSideProps, or getStaticPaths function, it is being done from a location outside of the pages or app directory (version 13). In this case, Next.js may return an empty props object without any error message to indicate the issue.

The getStaticProps function may return a props object that is empty

Answer №1

Answer №2

Answer №3

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