# Irys (Previously Bundlr)

When uploading a folder or group of files from the Irys CLIopen in new window, serveropen in new window or from the browseropen in new window, a manifest is automatically generated for the files.

# Irys CLI

The return type for each is a signed receiptopen in new window containing a millisecond-accurate timestamp.

irys upload-dir <folder> uploads a local directory.

If you want to upload your own manifest file manually, using the flag --content-type "application/x.arweave-manifest+json" on any transaction will designate it as a manifest transaction.

# Irys SDK (NodeJS Client)

Using the following snippet uploads a local directory to Arweave and automatically generates a manifest for the files:

// Upload an entire folder
const folderToUpload = "./my-folder/"; // Path to folder
try {
	const receipt = await irys.uploadFolder(folderToUpload, {
		indexFile: "index.html", // Optional index file (file the user will load when accessing the manifest)
		batchSize: 50, // Number of items to upload at once
		keepDeleted: false, // Whether to keep now deleted items from previous uploads
	}); //returns the manifest ID

	console.log(`Files uploaded. Manifest ID ${receipt.id}`);
} catch (e) {
	console.log("Error uploading file ", e);
}

If you want to upload your own manifest file manually, await irys.upload(data, { tags: [{ name: "Content-type", value: "application/x.arweave-manifest+json" }] } ) will designate the data uploaded as a manifest transaction.

# WebIrys (Browser Client)

Using the following snippet uploads a local directory to Arweave and automatically generates a manifest for the files:

const receipt = await webIrys.uploadFolder(files, {
	tags,
}); //returns the manifest ID

If you want to upload your own manifest file manually, await irys.upload(data, { tags: [{ name: "Content-type", value: "application/x.arweave-manifest+json" }] } ) will designate the data uploaded as a manifest transaction.

Source and Further Reading: Irys Docsopen in new window