feat(postgrest): use Date when filtering columns (#514)

* Add conformance to URLQueryRepresentable for Date

* add test case

---------

Co-authored-by: Guilherme Souza <[email protected]>

Author: LucasAbijmil

Sources/PostgREST/URLQueryRepresentable.swift

@@ -27,6 +27,14 @@ extension UUID: URLQueryRepresentable {
   public var queryValue: String { uuidString }
 }
 
+extension Date: URLQueryRepresentable {
+  public var queryValue: String {
+    let formatter = ISO8601DateFormatter()
+    formatter.formatOptions = [.withInternetDateTime, .withFractionalSeconds]
+    return formatter.string(from: self)
+  }
+}
+
 extension Array: URLQueryRepresentable where Element: URLQueryRepresentable {
   public var queryValue: String {
     "{\(map(\.queryValue).joined(separator: ","))}"

Tests/PostgRESTTests/BuildURLRequestTests.swift

@@ -222,6 +222,11 @@ final class BuildURLRequestTests: XCTestCase {
           .select()
           .eq("to", value: "+16505555555")
       },
+      TestCase(name: "filter using Date") { client in
+        client.from("users")
+          .select()
+          .gt("created_at", value: Date(timeIntervalSince1970: 0))
+      },
     ]
 
     for testCase in testCases {

Tests/PostgRESTTests/__Snapshots__/BuildURLRequestTests/testBuildRequest.filter-using-Date.txt

@@ -0,0 +1,5 @@
+curl \
+	--header "Accept: application/json" \
+	--header "Content-Type: application/json" \
+	--header "X-Client-Info: postgrest-swift/x.y.z" \
+	"https://example.supabase.co/users?created_at=gt.1970-01-01T00:00:00.000Z&select=*"