Dart MD5 From String

Just to save anyone else a few minutes of searching, to hash/digest a file from a stream you can use:

    final fileStream = File('path/to/file.txt').openRead();
    final checksum = (await md5.bind(fileStream).first).toString();

Found an answer:

import 'dart:convert';
import 'package:convert/convert.dart';
import 'package:crypto/crypto.dart' as crypto;

///Generate MD5 hash
generateMd5(String data) {
  var content = new Utf8Encoder().convert(data);
  var md5 = crypto.md5;
  var digest = md5.convert(content);
  return hex.encode(digest.bytes);
}

A more efficient approach would be the following:

import 'dart:convert';
import 'package:crypto/crypto.dart';

String generateMd5(String input) {
  return md5.convert(utf8.encode(input)).toString();
}

This avoids loading the unnecessary convert package and uses the already existing Utf8Codec, instead of instantiating a Utf8Encoder object each time the function is called.