Scenario: You are in a situation where you need to download a PDF file (or any file type) from Firebase storage to your computer using a browser that has a Vue.js web app with Vuetify components. Despite having looked at the Firebase storage documentation, you find it a bit unclear and are unsure about the appropriate Firebase storage rules to follow. This pertains to the frontend - the user's browser. How should you proceed with implementing this functionality?
Looking to download files from firebase storage to the user's computer through a vue web app? Check out this comprehensive guide. Find the necessary steps in the firebase storage download documentation, which covers almost everything you need for your vue.js web app. Make sure to adjust read access settings if you are not using firebase authentication. You can update your firebase storage rule to allow read access to everyone.
rules_version = '2';
service firebase.storage {
match /b/{bucket}/o {
match /{allPaths=**} {
allow read: if request.auth == null;
allow write: if request.auth != null;
}
}
}
After setting up the rules, follow the documentation to retrieve the file URL and convert it into a 'blob' format. For further instructions on how to proceed, refer to a helpful Stack Overflow answer. The combination of these resources provides a clear solution. The code snippet below outlines the necessary steps:
@click.prevent event emitter.a element, set its href attribute to the 'blob', define the download name, and trigger the click event. Remember to revoke the href attribute afterwards.Although a links are traditionally used for file downloads, you can utilize v-btn in this scenario since the a link is being generated within the event handler. The button includes a tooltip and icon. Additionally, unused variables have been removed for clarity.
<v-tooltip top>
<template v-slot:activator="{ on, attrs }">
<v-btn
:color="counterThemeColorClass"
fab
ripple
v-bind="attrs"
v-on="on"
@click.prevent="downloadResumePdf"
>
<v-icon
:color="themeColorClass"
x-large
>mdi-file-account-outline</v-icon>
</v-btn>
</template>
<span class="font-weight-bold">download resume</span>
</v-tooltip>
downloadResumePdf() {
const resumeRef = firebase.storage()
.ref('tenzin_resume.pdf');
resumeRef.getDownloadURL().then((url) => {
// `url` is the download URL
console.log(url);
// Direct download:
const xhr = new XMLHttpRequest();
xhr.responseType = 'blob';
xhr.onload = function () {
const blob = xhr.response;
const link = document.createElement('a');
link.href = URL.createObjectURL(blob);
link.download = 'tenzin_resume';
link.click();
URL.revokeObjectURL(link.href);
};
xhr.open('GET', url);
xhr.send();
}).catch((error) => {
// Handle errors
switch (error.code) {
case 'storage/object-not-found':
// File not found
break;
case 'storage/unauthorized':
// User unauthorized
break;
case 'storage/canceled':
// Upload canceled
break;
case 'storage/unknown':
// Unknown error, check server response
break;
default:
break;
}
});
},
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