rpc: add target to getmininginfo result

Author: Sjors

src/rpc/mining.cpp

@@ -423,6 +423,7 @@ static RPCHelpMan getmininginfo()
                         {RPCResult::Type::NUM, "currentblocktx", /*optional=*/true, "The number of block transactions of the last assembled block (only present if a block was ever assembled)"},
                         {RPCResult::Type::STR_HEX, "bits", "The current nBits, compact representation of the block difficulty target"},
                         {RPCResult::Type::NUM, "difficulty", "The current difficulty"},
+                        {RPCResult::Type::STR_HEX, "target", "The current target"},
                         {RPCResult::Type::NUM, "networkhashps", "The network hashes per second"},
                         {RPCResult::Type::NUM, "pooledtx", "The size of the mempool"},
                         {RPCResult::Type::STR, "chain", "current network name (" LIST_CHAIN_NAMES ")"},
@@ -455,6 +456,7 @@ static RPCHelpMan getmininginfo()
     if (BlockAssembler::m_last_block_num_txs) obj.pushKV("currentblocktx", *BlockAssembler::m_last_block_num_txs);
     obj.pushKV("bits", strprintf("%08x", tip.nBits));
     obj.pushKV("difficulty", GetDifficulty(tip));
+    obj.pushKV("target", GetTarget(tip, chainman.GetConsensus().powLimit).GetHex());
     obj.pushKV("networkhashps",    getnetworkhashps().HandleRequest(request));
     obj.pushKV("pooledtx",         (uint64_t)mempool.size());
     obj.pushKV("chain", chainman.GetParams().GetChainTypeString());

test/functional/mining_basic.py

@@ -17,7 +17,9 @@
     NORMAL_GBT_REQUEST_PARAMS,
     TIME_GENESIS_BLOCK,
     REGTEST_N_BITS,
+    REGTEST_TARGET,
     nbits_str,
+    target_str,
 )
 from test_framework.messages import (
     BLOCK_HEADER_SIZE,
@@ -209,6 +211,7 @@ def assert_submitblock(block, result_str_1, result_str_2=None):
         assert 'currentblocktx' not in mining_info
         assert 'currentblockweight' not in mining_info
         assert_equal(mining_info['bits'], nbits_str(REGTEST_N_BITS))
+        assert_equal(mining_info['target'], target_str(REGTEST_TARGET))
         assert_equal(mining_info['difficulty'], Decimal('4.656542373906925E-10'))
         assert_equal(mining_info['networkhashps'], Decimal('0.003333333333333334'))
         assert_equal(mining_info['pooledtx'], 0)