add digest, http_test

digest/digest.dart

@@ -0,0 +1,12 @@
+import 'dart:convert';
+import 'package:crypto/crypto.dart';
+
+// https://pub.dev/packages/crypto
+main() async {
+  var bytes = utf8.encode("Hello World!");
+
+  var digest = sha256.convert(bytes);
+
+  // print("Digest as bytes: ${digest.bytes}");
+  print("Digest as hex string: $digest");
+}

digest/pubspec.yaml

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+name:
+  digest
+  
+dependencies:
+  crypto: ^2.1.3

http_test/pubspec.yaml

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+name: http_test
+description: http test
+
+dependencies:
+    http: ^0.12.0+2
+
+
+

http_test/ss.dart

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+import 'package:http/http.dart' as http;
+
+main() async {
+  var url = 'https://hatter.ink/ip/ip.jsonp';
+  var response = await http.post(url, body: {
+    'name': 'doodle',
+    'color': 'blue'
+    });
+  print('Response status: ${response.statusCode}');
+  print('Response body: ${response.body}');
+
+  print(await http.read('https://hatter.ink/ip/ip.jsonp'));
+}