const CID = require('cids')
const multihashing = require('multihashing-async')
export async function createCid(buf: Buffer, alg: string = 'sha2-256', codec: string = 'dag-pb'): Promise<string> {
    const hash = await multihashing(buf, alg)
    const cid = new CID(1, codec, hash)
    return cid.toString();
}