diff --git a/include/jwt/impl/jwt.ipp b/include/jwt/impl/jwt.ipp
index a5dfe56..7e9beb0 100644
--- a/include/jwt/impl/jwt.ipp
+++ b/include/jwt/impl/jwt.ipp
@@ -254,7 +254,7 @@ jwt_payload& jwt_object::add_claim(const string_view name, T&& value)
   return payload_;
 }
 
-jwt_payload& jwt_object::remove_claim(const std::string& name)
+jwt_payload& jwt_object::remove_claim(const string_view name)
 {
   payload_.remove_claim(name);
   return payload_;
diff --git a/include/jwt/jwt.hpp b/include/jwt/jwt.hpp
index 8f4af64..1f2cc3c 100644
--- a/include/jwt/jwt.hpp
+++ b/include/jwt/jwt.hpp
@@ -199,6 +199,13 @@ public: // Exposed APIs
     alg_ = alg;
   }
 
+  /**
+   */
+  void algo(const string_view sv)
+  {
+    alg_ = str_to_alg(sv.data());
+  }
+
   /*!
    */
   enum algorithm algo() const noexcept
@@ -305,13 +312,13 @@ public: // Exposed APIs
 
   /**
    */
-  bool remove_claim(const std::string& cname)
+  bool remove_claim(const string_view cname)
   {
     auto itr = claim_names_.find(cname);
     if (itr == claim_names_.end()) return false;
 
     claim_names_.erase(itr);
-    payload_.erase(cname.c_str());
+    payload_.erase(cname.data());
 
     return true;
   }
@@ -517,6 +524,20 @@ public: // Exposed APIs
     return header_;
   }
 
+  /**
+   */
+  std::string secret() const
+  {
+    return secret_;
+  }
+
+  /**
+   */
+  void secret(const string_view sv)
+  {
+    secret_.assign(sv.data(), sv.length());
+  }
+
   /**
    */
   template <typename T>
@@ -524,7 +545,7 @@ public: // Exposed APIs
 
   /**
    */
-  jwt_payload& remove_claim(const std::string& name);
+  jwt_payload& remove_claim(const string_view name);
 
   /**
    */
diff --git a/include/jwt/test/test_jwt_object b/include/jwt/test/test_jwt_object
index 855a387..db08c41 100755
Binary files a/include/jwt/test/test_jwt_object and b/include/jwt/test/test_jwt_object differ
diff --git a/include/jwt/test/test_jwt_object.cc b/include/jwt/test/test_jwt_object.cc
index 493cecd..00e9ecd 100644
--- a/include/jwt/test/test_jwt_object.cc
+++ b/include/jwt/test/test_jwt_object.cc
@@ -34,6 +34,14 @@ void basic_jwt_object_test()
       .add_claim("time", 176353563);
 
   std::cout << jwt::to_json_str(obj3.payload(), true) << std::endl;
+
+  obj3.remove_claim(std::string{"a"});
+  std::cout << obj3.payload() << std::endl;
+
+  obj3.secret("secret");
+  obj3.header().algo("hs256");
+
+  std::cout << obj3.signature() << std::endl;
 }
 
 int main() {