[swift5]: support arrays in multipart/form-data (#13383)

* [swift5]: support arrays in multipart/form-data

* update samples

modules/openapi-generator/src/main/resources/swift5/libraries/alamofire/AlamofireImplementations.mustache

@@ -103,6 +103,7 @@ private var managerStore = SynchronizedDictionary<String, Alamofire.Session>()
 
                 let upload = manager.upload(multipartFormData: { mpForm in
                     for (k, v) in self.parameters! {
+                        for v in (v as? Array ?? [v]) {
                             switch v {
                             case let fileURL as URL:
                                 if let mimeType = self.contentTypeForFormPart(fileURL: fileURL) {
@@ -122,6 +123,7 @@ private var managerStore = SynchronizedDictionary<String, Alamofire.Session>()
                                 fatalError("Unprocessable value \(v) with key \(k)")
                             }
                         }
+                    }
                 }, to: URLString, method: xMethod, headers: nil)
                 .uploadProgress { progress in
                     if let onProgressReady = self.onProgressReady {

modules/openapi-generator/src/main/resources/swift5/libraries/urlsession/URLSessionImplementations.mustache

@@ -455,6 +455,7 @@ private class FormDataEncoding: ParameterEncoding {
         urlRequest.setValue("multipart/form-data; boundary=\(boundary)", forHTTPHeaderField: "Content-Type")
 
         for (key, value) in parameters {
+            for value in (value as? Array ?? [value]) {
                 switch value {
                 case let fileURL as URL:
 
@@ -511,6 +512,7 @@ private class FormDataEncoding: ParameterEncoding {
                     fatalError("Unprocessable value \(value) with key \(key)")
                 }
             }
+        }
 
         var body = urlRequest.httpBody.orEmpty
 

samples/client/petstore/swift5/alamofireLibrary/PetstoreClient/Classes/OpenAPIs/AlamofireImplementations.swift

@@ -103,6 +103,7 @@ open class AlamofireRequestBuilder<T>: RequestBuilder<T> {
 
                 let upload = manager.upload(multipartFormData: { mpForm in
                     for (k, v) in self.parameters! {
+                        for v in (v as? Array ?? [v]) {
                             switch v {
                             case let fileURL as URL:
                                 if let mimeType = self.contentTypeForFormPart(fileURL: fileURL) {
@@ -122,6 +123,7 @@ open class AlamofireRequestBuilder<T>: RequestBuilder<T> {
                                 fatalError("Unprocessable value \(v) with key \(k)")
                             }
                         }
+                    }
                 }, to: URLString, method: xMethod, headers: nil)
                 .uploadProgress { progress in
                     if let onProgressReady = self.onProgressReady {

samples/client/petstore/swift5/asyncAwaitLibrary/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift

@@ -455,6 +455,7 @@ private class FormDataEncoding: ParameterEncoding {
         urlRequest.setValue("multipart/form-data; boundary=\(boundary)", forHTTPHeaderField: "Content-Type")
 
         for (key, value) in parameters {
+            for value in (value as? Array ?? [value]) {
                 switch value {
                 case let fileURL as URL:
 
@@ -511,6 +512,7 @@ private class FormDataEncoding: ParameterEncoding {
                     fatalError("Unprocessable value \(value) with key \(key)")
                 }
             }
+        }
 
         var body = urlRequest.httpBody.orEmpty
 

samples/client/petstore/swift5/combineLibrary/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift

@@ -455,6 +455,7 @@ private class FormDataEncoding: ParameterEncoding {
         urlRequest.setValue("multipart/form-data; boundary=\(boundary)", forHTTPHeaderField: "Content-Type")
 
         for (key, value) in parameters {
+            for value in (value as? Array ?? [value]) {
                 switch value {
                 case let fileURL as URL:
 
@@ -511,6 +512,7 @@ private class FormDataEncoding: ParameterEncoding {
                     fatalError("Unprocessable value \(value) with key \(key)")
                 }
             }
+        }
 
         var body = urlRequest.httpBody.orEmpty
 

samples/client/petstore/swift5/default/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift

@@ -455,6 +455,7 @@ private class FormDataEncoding: ParameterEncoding {
         urlRequest.setValue("multipart/form-data; boundary=\(boundary)", forHTTPHeaderField: "Content-Type")
 
         for (key, value) in parameters {
+            for value in (value as? Array ?? [value]) {
                 switch value {
                 case let fileURL as URL:
 
@@ -511,6 +512,7 @@ private class FormDataEncoding: ParameterEncoding {
                     fatalError("Unprocessable value \(value) with key \(key)")
                 }
             }
+        }
 
         var body = urlRequest.httpBody.orEmpty
 

samples/client/petstore/swift5/deprecated/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift

@@ -455,6 +455,7 @@ private class FormDataEncoding: ParameterEncoding {
         urlRequest.setValue("multipart/form-data; boundary=\(boundary)", forHTTPHeaderField: "Content-Type")
 
         for (key, value) in parameters {
+            for value in (value as? Array ?? [value]) {
                 switch value {
                 case let fileURL as URL:
 
@@ -511,6 +512,7 @@ private class FormDataEncoding: ParameterEncoding {
                     fatalError("Unprocessable value \(value) with key \(key)")
                 }
             }
+        }
 
         var body = urlRequest.httpBody.orEmpty
 

samples/client/petstore/swift5/frozenEnums/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift

@@ -455,6 +455,7 @@ private class FormDataEncoding: ParameterEncoding {
         urlRequest.setValue("multipart/form-data; boundary=\(boundary)", forHTTPHeaderField: "Content-Type")
 
         for (key, value) in parameters {
+            for value in (value as? Array ?? [value]) {
                 switch value {
                 case let fileURL as URL:
 
@@ -511,6 +512,7 @@ private class FormDataEncoding: ParameterEncoding {
                     fatalError("Unprocessable value \(value) with key \(key)")
                 }
             }
+        }
 
         var body = urlRequest.httpBody.orEmpty
 

samples/client/petstore/swift5/nonPublicApi/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift

@@ -455,6 +455,7 @@ private class FormDataEncoding: ParameterEncoding {
         urlRequest.setValue("multipart/form-data; boundary=\(boundary)", forHTTPHeaderField: "Content-Type")
 
         for (key, value) in parameters {
+            for value in (value as? Array ?? [value]) {
                 switch value {
                 case let fileURL as URL:
 
@@ -511,6 +512,7 @@ private class FormDataEncoding: ParameterEncoding {
                     fatalError("Unprocessable value \(value) with key \(key)")
                 }
             }
+        }
 
         var body = urlRequest.httpBody.orEmpty
 

samples/client/petstore/swift5/objcCompatible/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift

@@ -455,6 +455,7 @@ private class FormDataEncoding: ParameterEncoding {
         urlRequest.setValue("multipart/form-data; boundary=\(boundary)", forHTTPHeaderField: "Content-Type")
 
         for (key, value) in parameters {
+            for value in (value as? Array ?? [value]) {
                 switch value {
                 case let fileURL as URL:
 
@@ -511,6 +512,7 @@ private class FormDataEncoding: ParameterEncoding {
                     fatalError("Unprocessable value \(value) with key \(key)")
                 }
             }
+        }
 
         var body = urlRequest.httpBody.orEmpty
 

samples/client/petstore/swift5/oneOf/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift

@@ -455,6 +455,7 @@ private class FormDataEncoding: ParameterEncoding {
         urlRequest.setValue("multipart/form-data; boundary=\(boundary)", forHTTPHeaderField: "Content-Type")
 
         for (key, value) in parameters {
+            for value in (value as? Array ?? [value]) {
                 switch value {
                 case let fileURL as URL:
 
@@ -511,6 +512,7 @@ private class FormDataEncoding: ParameterEncoding {
                     fatalError("Unprocessable value \(value) with key \(key)")
                 }
             }
+        }
 
         var body = urlRequest.httpBody.orEmpty
 

samples/client/petstore/swift5/promisekitLibrary/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift

@@ -455,6 +455,7 @@ private class FormDataEncoding: ParameterEncoding {
         urlRequest.setValue("multipart/form-data; boundary=\(boundary)", forHTTPHeaderField: "Content-Type")
 
         for (key, value) in parameters {
+            for value in (value as? Array ?? [value]) {
                 switch value {
                 case let fileURL as URL:
 
@@ -511,6 +512,7 @@ private class FormDataEncoding: ParameterEncoding {
                     fatalError("Unprocessable value \(value) with key \(key)")
                 }
             }
+        }
 
         var body = urlRequest.httpBody.orEmpty
 

samples/client/petstore/swift5/readonlyProperties/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift

@@ -455,6 +455,7 @@ private class FormDataEncoding: ParameterEncoding {
         urlRequest.setValue("multipart/form-data; boundary=\(boundary)", forHTTPHeaderField: "Content-Type")
 
         for (key, value) in parameters {
+            for value in (value as? Array ?? [value]) {
                 switch value {
                 case let fileURL as URL:
 
@@ -511,6 +512,7 @@ private class FormDataEncoding: ParameterEncoding {
                     fatalError("Unprocessable value \(value) with key \(key)")
                 }
             }
+        }
 
         var body = urlRequest.httpBody.orEmpty
 

samples/client/petstore/swift5/resultLibrary/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift

@@ -455,6 +455,7 @@ private class FormDataEncoding: ParameterEncoding {
         urlRequest.setValue("multipart/form-data; boundary=\(boundary)", forHTTPHeaderField: "Content-Type")
 
         for (key, value) in parameters {
+            for value in (value as? Array ?? [value]) {
                 switch value {
                 case let fileURL as URL:
 
@@ -511,6 +512,7 @@ private class FormDataEncoding: ParameterEncoding {
                     fatalError("Unprocessable value \(value) with key \(key)")
                 }
             }
+        }
 
         var body = urlRequest.httpBody.orEmpty
 

samples/client/petstore/swift5/rxswiftLibrary/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift

@@ -455,6 +455,7 @@ private class FormDataEncoding: ParameterEncoding {
         urlRequest.setValue("multipart/form-data; boundary=\(boundary)", forHTTPHeaderField: "Content-Type")
 
         for (key, value) in parameters {
+            for value in (value as? Array ?? [value]) {
                 switch value {
                 case let fileURL as URL:
 
@@ -511,6 +512,7 @@ private class FormDataEncoding: ParameterEncoding {
                     fatalError("Unprocessable value \(value) with key \(key)")
                 }
             }
+        }
 
         var body = urlRequest.httpBody.orEmpty
 

samples/client/petstore/swift5/urlsessionLibrary/Sources/PetstoreClient/URLSessionImplementations.swift

@@ -455,6 +455,7 @@ private class FormDataEncoding: ParameterEncoding {
         urlRequest.setValue("multipart/form-data; boundary=\(boundary)", forHTTPHeaderField: "Content-Type")
 
         for (key, value) in parameters {
+            for value in (value as? Array ?? [value]) {
                 switch value {
                 case let fileURL as URL:
 
@@ -511,6 +512,7 @@ private class FormDataEncoding: ParameterEncoding {
                     fatalError("Unprocessable value \(value) with key \(key)")
                 }
             }
+        }
 
         var body = urlRequest.httpBody.orEmpty
 

samples/client/petstore/swift5/x-swift-hashable/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift

@@ -455,6 +455,7 @@ private class FormDataEncoding: ParameterEncoding {
         urlRequest.setValue("multipart/form-data; boundary=\(boundary)", forHTTPHeaderField: "Content-Type")
 
         for (key, value) in parameters {
+            for value in (value as? Array ?? [value]) {
                 switch value {
                 case let fileURL as URL:
 
@@ -511,6 +512,7 @@ private class FormDataEncoding: ParameterEncoding {
                     fatalError("Unprocessable value \(value) with key \(key)")
                 }
             }
+        }
 
         var body = urlRequest.httpBody.orEmpty