init snippets

zd/gen_user_id.scala

@@ -0,0 +1,14 @@
+//> using dep com.google.guava:guava:33.3.0-jre
+
+import com.google.common.base.Charsets
+import com.google.common.hash.Hashing
+
+@main
+def genId(id: String, key: String) = {
+  val sign = sha256(id + sha256(key))
+  println(s"${id}|${sign}")
+}
+
+def sha256(str: String) = {
+  Hashing.sha256().hashString(str, Charsets.UTF_8).toString
+}