rpc: call CreateNewBlock via miner interface

src/node/interfaces.cpp

@@ -32,6 +32,7 @@
 #include <node/context.h>
 #include <node/interface_ui.h>
 #include <node/mini_miner.h>
+#include <node/miner.h>
 #include <node/transaction.h>
 #include <node/types.h>
 #include <node/warnings.h>
@@ -859,6 +860,12 @@ public:
         return TestBlockValidity(state, chainman().GetParams(), chainman().ActiveChainstate(), block, chainman().ActiveChain().Tip(), /*fCheckPOW=*/false, check_merkle_root);
     }
 
+    std::unique_ptr<CBlockTemplate> createNewBlock(const CScript& script_pub_key, bool use_mempool) override
+    {
+        LOCK(::cs_main);
+        return BlockAssembler{chainman().ActiveChainstate(), use_mempool ? context()->mempool.get() : nullptr}.CreateNewBlock(script_pub_key);
+    }
+
     NodeContext* context() override { return &m_node; }
     ChainstateManager& chainman() { return *Assert(m_node.chainman); }
     NodeContext& m_node;