akka-http Uri Example (Ammonite output)

Example.scala

@ import akka.http.scaladsl.model.Uri 
import akka.http.scaladsl.model.Uri

@ val u = Uri("http://smrtlink-bihourly:8081") 
u: Uri = Uri("http", Authority(NamedHost("smrtlink-bihourly"), 8081, ""), , None, None)

@ val p1 = Uri.Path("root") / "alpha" / "beta" 
p1: Uri.Path = Segment("root", Slash(Segment("alpha", Slash(Segment("beta", )))))

@ val p2 =  p1 / "gamma" 
p2: Uri.Path = Segment("root", Slash(Segment("alpha", Slash(Segment("beta", Slash(Segment("gamma", )))))))

@ p2.toString 
res4: String = "root/alpha/beta/gamma"

@ val p3 = Uri.Path./ ++ p2 
p3: Uri.Path = Slash(Segment("root", Slash(Segment("alpha", Slash(Segment("beta", Slash(Segment("gamma", ))))))))

@ p3.toString 
res6: String = "/root/alpha/beta/gamma"

@ val u2 = u.copy(path = p3) 
u2: Uri = Uri(
  "http",
  Authority(NamedHost("smrtlink-bihourly"), 8081, ""),
  Slash(Segment("root", Slash(Segment("alpha", Slash(Segment("beta", Slash(Segment("gamma", )))))))),
  None,
  None
)

@ u2.toString 
res8: String = "http://smrtlink-bihourly:8081/root/alpha/beta/gamma"

@ val q1 = Uri.Query("a" -> "alpha", "b" -> "beta") 
q1: Uri.Query = Uri.Query.Cons(("a", "alpha"), ("b", "beta"))

@ val u3 = u2.withQuery(q1) 
u3: Uri = Uri(
  "http",
  Authority(NamedHost("smrtlink-bihourly"), 8081, ""),
  Slash(Segment("root", Slash(Segment("alpha", Slash(Segment("beta", Slash(Segment("gamma", )))))))),
  Some("a=alpha&b=beta"),
  None
)

@ u3.toString 
res11: String = "http://smrtlink-bihourly:8081/root/alpha/beta/gamma?a=alpha&b=beta"

@ val q2 = Uri.Query("a" -> "alpha", "b" -> "beta x+y+z") 
q2: Uri.Query = Uri.Query.Cons(("a", "alpha"), ("b", "beta x+y+z"))

@ u2.withQuery(q2).toString 
res13: String = "http://smrtlink-bihourly:8081/root/alpha/beta/gamma?a=alpha&b=beta+x%2By%2Bz"

@ // Notice the URL encoding for free