What is the best way to handle waiting for an API call in JavaScript export?

Question

What is the best way to handle waiting for an API call in JavaScript export?

In my Vue app, I've set up my firestore app initialization code as shown below:

if (firebase.apps.length) {
  firebase.app()
} else {
  firebase.initializeApp(config)
}
export const Firestore = firebase.firestore()
export const Auth = firebase.auth()

Now, I want to fetch the config file from an API. Instead of directly calling `firebase.initializeApp(config)`, I aim to do something like this:

axios.get('https://.../config.json', {})
    .then(async ({ data }) => {
      firebase.initializeApp(data)
    })
    .catch((err) => {
      console.log('error', err)
    })

However, I need to ensure that my exports wait until I receive the response from the API and initialize the app.

Is there a way to achieve this by using async/await or any other pattern?

javascript firebase vue.js async-await

Answer 1

Answer №1

If you want to set up Firebase, you can follow these steps:

export const initialize = () => {
 try {
   return axios.get('https://.../config.json', {})
    } catch(err) {
      console.log('error', err)
    }
  }

In another JavaScript file, you can import the above code and then proceed as follows:

initialize().then(data => {
firebase.initializeApp(data)
firebase.firestore()
}).catch((err) => {
    console.log(err);
});

Remember, there is no need to export firebase.firestore() separately because it will be used in every JavaScript file if Firestore is required.

The essential method to export is firebase.initializeApp(data). You can include this inside the initialize() method and return it for convenience.

Answer 2

If you want to set up Firebase, you can follow these steps:

export const initialize = () => {
 try {
   return axios.get('https://.../config.json', {})
    } catch(err) {
      console.log('error', err)
    }
  }

In another JavaScript file, you can import the above code and then proceed as follows:

initialize().then(data => {
firebase.initializeApp(data)
firebase.firestore()
}).catch((err) => {
    console.log(err);
});

Remember, there is no need to export firebase.firestore() separately because it will be used in every JavaScript file if Firestore is required.

The essential method to export is firebase.initializeApp(data). You can include this inside the initialize() method and return it for convenience.

What is the best way to handle waiting for an API call in JavaScript export?

Answer №1

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