NextJs issue: Your `getStaticProps` function failed to return an object

Question

NextJs issue: Your `getStaticProps` function failed to return an object

I am currently developing a web application using NextJs. On one of the pages, I am trying to make an API call to fetch data and display it. However, during compilation, I encountered an error.

The specific error message is:

Error: Your `getStaticProps` function did not return an object. Did you forget to add a `return`?

Below is the code for my function:

export async function getStaticProps(context) {
    try {
      const res = await fetch(ApiLinks.players.all)
        .then((response) => response.json())
        .then((response) => response.data.teamMembers)
  
        const responsePlayers = res.players;
        const responseStaff = res.staff;

        return {
            props: {
                responsePlayers,
                responseStaff,
            }
        }
    } catch (err) {
      console.error(err);
    }
  }

javascript next.js

Answer 1

Answer №1

The reason for placing the try-catch block outside of getStaticProps is to ensure that props are returned regardless of whether there is data or not:

Here is an example:

export async function getStaticProps(context) {
  let props = {};
  try {
    const res = await fetch(ApiLinks.players.all)
      .then(response => response.json())
      .then(response => response.data.teamMembers);

    const responsePlayers = res.players;
    const responseStaff = res.staff;
    props = {
      responsePlayers,
      responseStaff,
    };
  } catch (err) {
    console.error(err);
  }

  return {
    props,
  };
}

Answer 2

The reason for placing the try-catch block outside of getStaticProps is to ensure that props are returned regardless of whether there is data or not:

Here is an example:

export async function getStaticProps(context) {
  let props = {};
  try {
    const res = await fetch(ApiLinks.players.all)
      .then(response => response.json())
      .then(response => response.data.teamMembers);

    const responsePlayers = res.players;
    const responseStaff = res.staff;
    props = {
      responsePlayers,
      responseStaff,
    };
  } catch (err) {
    console.error(err);
  }

  return {
    props,
  };
}

Answer 3

Answer №2

It looks like your function is working fine. To confirm, you can use console.log to check if both responsePlayers and responseStaff are objects. If they are not, you can modify the code as follows:

return {
   props: {
      responsePlayers: responsePlayers,
      responseStaff: responseStaff
   }
}

Additionally, make sure to include the following in the catch block:

return {
     props: null
}

Lastly, verify whether props is null or not in the component mentioned above.

Answer 4

It looks like your function is working fine. To confirm, you can use console.log to check if both responsePlayers and responseStaff are objects. If they are not, you can modify the code as follows:

return {
   props: {
      responsePlayers: responsePlayers,
      responseStaff: responseStaff
   }
}

Additionally, make sure to include the following in the catch block:

return {
     props: null
}

Lastly, verify whether props is null or not in the component mentioned above.

NextJs issue: Your `getStaticProps` function failed to return an object

Answer №1

Answer №2

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