Move all AsyncHTTPClient code to request.swift

Sources/AWSSigner/request.swift

@@ -10,6 +10,20 @@ import Foundation
 import NIO
 import NIOHTTP1
 
+public extension AWSSigner.BodyData {
+    /// Convert to HTTPClient Body struct
+    var body : HTTPClient.Body {
+        switch self {
+        case .string(let string):
+            return .string(string)
+        case .data(let data):
+            return .data(data)
+        case .byteBuffer(let byteBuffer):
+            return .byteBuffer(byteBuffer)
+        }
+    }
+}
+
 public extension HTTPClient {
     /// return signed HTTPClient request with signature in the headers
     static func awsHeaderSignedRequest(url: URL, method: HTTPMethod = .GET, headers: HTTPHeaders = HTTPHeaders(), body: AWSSigner.BodyData? = nil, date: Date = Date(), signer: AWSSigner) throws -> HTTPClient.Request {

Sources/AWSSigner/signer.swift

@@ -7,7 +7,6 @@
 //  AWS documentation about signing requests is here https://docs.aws.amazon.com/general/latest/gr/signing_aws_api_requests.html
 //
 
-import AsyncHTTPClient
 import Foundation
 import NIO
 import NIOHTTP1
@@ -33,17 +32,6 @@ public class AWSSigner {
         case string(String)
         case data(Data)
         case byteBuffer(ByteBuffer)
-        
-        var body : HTTPClient.Body {
-            switch self {
-            case .string(let string):
-                return .string(string)
-            case .data(let data):
-                return .data(data)
-            case .byteBuffer(let byteBuffer):
-                return .byteBuffer(byteBuffer)
-            }
-        }
     }
     
     /// Generate signed headers, for a HTTP request