return a null instead of application/json when no content types are set (OpenAPITools#5941)

FaFre · wing328 · michaelpro1 · commit a387205e7813 · 2020-05-07T12:25:40.000+10:00
* return a null instead of application/json when no content types are set

* update petstore sample

Co-authored-by: William Cheng &lt;wing328hk@gmail.com&gt;
diff --git a/modules/openapi-generator/src/main/resources/csharp-netcore/ClientUtils.mustache b/modules/openapi-generator/src/main/resources/csharp-netcore/ClientUtils.mustache
@@ -169,7 +169,7 @@ namespace {{packageName}}.Client
         public static String SelectHeaderContentType(String[] contentTypes)
         {
             if (contentTypes.Length == 0)
-                return "application/json";
+                return null;
 
             foreach (var contentType in contentTypes)
             {
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Client/ClientUtils.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Client/ClientUtils.cs
@@ -174,7 +174,7 @@ public static byte[] ReadAsBytes(Stream inputStream)
         public static String SelectHeaderContentType(String[] contentTypes)
         {
             if (contentTypes.Length == 0)
-                return "application/json";
+                return null;
 
             foreach (var contentType in contentTypes)
             {
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Client/ClientUtils.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Client/ClientUtils.cs
@@ -174,7 +174,7 @@ public static byte[] ReadAsBytes(Stream inputStream)
         public static String SelectHeaderContentType(String[] contentTypes)
         {
             if (contentTypes.Length == 0)
-                return "application/json";
+                return null;
 
             foreach (var contentType in contentTypes)
             {

Original file line number	Diff line number	Diff line change
`@@ -169,7 +169,7 @@ namespace {{packageName}}.Client`
`169`	`169`	`public static String SelectHeaderContentType(String[] contentTypes)`
`170`	`170`	`{`
`171`	`171`	`if (contentTypes.Length == 0)`
`172`		`- return "application/json";`
	`172`	`+ return null;`
`173`	`173`
`174`	`174`	`foreach (var contentType in contentTypes)`
`175`	`175`	`{`
Original file line number	Diff line number	Diff line change
`@@ -174,7 +174,7 @@ public static byte[] ReadAsBytes(Stream inputStream)`
`174`	`174`	`public static String SelectHeaderContentType(String[] contentTypes)`
`175`	`175`	`{`
`176`	`176`	`if (contentTypes.Length == 0)`
`177`		`- return "application/json";`
	`177`	`+ return null;`
`178`	`178`
`179`	`179`	`foreach (var contentType in contentTypes)`
`180`	`180`	`{`