Asset file download to device

I need to download file which is in application to iOS device.
which is located like
```
- appfolder
-src
-assets
-icons
-bootsplash.png
```

I implemented code like below but the source path is not found by copyFile() function

```
sourcepath='src/assets/icons/bootsplash.png';
const destinationPath = `${RNFS.DocumentDirectoryPath}/bootsplash.png`;
RNFS.copyFile(sourcepath, destinationPath, 10, 10)
.then(() => {
console.log('Asset copied successfully to:', destinationPath);
})
.catch(error => {
console.error('Error copying asset:', error);
});
```

When I try sourcepath with 'Users/m*****/Documents/reactProjs/MyApplication/src/assets/icons/bootsplash.png' its working but I want to set this path dynamically. How can we get application path dynamically with code or any other solution?