I have this nodejs code here which read a folder and process the file. The code works. But it is still printing all the file name first, then only read the file. How do I get a file and then read a content of the file first and not getting all the files first?
async function readingDirectory(directory) {
try {
fileNames = await fs.readdir(directory);
fileNames.map(file => {
const absolutePath = path.resolve(folder, file);
log(absolutePath);
fs.readFile(absolutePath, (err, data) => {
log(data); // How to make it async await here?
});
});
} catch {
console.log('Directory Reading Error');
}
}
readingDirectory(folder);
To use await, you need to use promise versions of fs.readFile() and fs.readdir() which you can get on fs.promises and if you want these to run sequentially, then use a for loop instead of .map():
async function readingDirectory(directory) {
const fileNames = await fs.promises.readdir(directory);
for (let file of fileNames) {
const absolutePath = path.join(directory, file);
log(absolutePath);
const data = await fs.promises.readFile(absolutePath);
log(data);
}
}
readingDirectory(folder).then(() => {
log("all done");
}).catch(err => {
log(err);
});