diff --git a/libraries/utilities/elasticsearch.cpp b/libraries/utilities/elasticsearch.cpp
index e5329df0fe..424b4e8289 100644
--- a/libraries/utilities/elasticsearch.cpp
+++ b/libraries/utilities/elasticsearch.cpp
@@ -222,6 +222,33 @@ std::string doCurl(CurlRequest& curl)
    return CurlReadBuffer;
 }
 
+bool curl_wrapper::http_response::is_200() const
+{
+   return ( http_response_code::HTTP_200 == code );
+}
+
+curl_wrapper::http_response curl_wrapper::get( const std::string& url, const std::string& auth ) const
+{
+   return request( http_request_method::HTTP_GET, url, auth, "" );
+}
+
+curl_wrapper::http_response curl_wrapper::del( const std::string& url, const std::string& auth ) const
+{
+   return request( http_request_method::HTTP_DELETE, url, auth, "" );
+}
+
+curl_wrapper::http_response curl_wrapper::post( const std::string& url, const std::string& auth,
+                                                const std::string& query ) const
+{
+   return request( http_request_method::HTTP_POST, url, auth, query );
+}
+
+curl_wrapper::http_response curl_wrapper::put( const std::string& url, const std::string& auth,
+                                               const std::string& query ) const
+{
+   return request( http_request_method::HTTP_PUT, url, auth, query );
+}
+
 CURL* curl_wrapper::init_curl()
 {
    CURL* curl = curl_easy_init();
diff --git a/libraries/utilities/include/graphene/utilities/elasticsearch.hpp b/libraries/utilities/include/graphene/utilities/elasticsearch.hpp
index f4b7df523f..2a237299c5 100644
--- a/libraries/utilities/include/graphene/utilities/elasticsearch.hpp
+++ b/libraries/utilities/include/graphene/utilities/elasticsearch.hpp
@@ -60,7 +60,7 @@ class curl_wrapper
    {
       uint16_t    code;
       std::string content;
-      bool is_200() const { return ( http_response_code::HTTP_200 == code ); }
+      bool is_200() const; ///< @return if @ref code is 200
    };
 
    http_response request( http_request_method method,
@@ -68,17 +68,10 @@ class curl_wrapper
                           const std::string& auth,
                           const std::string& query ) const;
 
-   http_response get( const std::string& url, const std::string& auth ) const
-   { return request( http_request_method::HTTP_GET, url, auth, "" ); }
-
-   http_response del( const std::string& url, const std::string& auth ) const
-   { return request( http_request_method::HTTP_DELETE, url, auth, "" ); }
-
-   http_response post( const std::string& url, const std::string& auth, const std::string& query ) const
-   { return request( http_request_method::HTTP_POST, url, auth, query ); }
-
-   http_response put( const std::string& url, const std::string& auth, const std::string& query ) const
-   { return request( http_request_method::HTTP_PUT, url, auth, query ); }
+   http_response get( const std::string& url, const std::string& auth ) const;
+   http_response del( const std::string& url, const std::string& auth ) const;
+   http_response post( const std::string& url, const std::string& auth, const std::string& query ) const;
+   http_response put( const std::string& url, const std::string& auth, const std::string& query ) const;
 
 private: