奇亚(Chia, XCH) 接口之获取主链相关信息(含最新块高)

奇亚(Chia, XCH) 接口之获取主链相关信息，主要是获取当前块高，调用的路径为 /get_blockchain_state

参数则传递空 JSON 即可 {}

例如

curl --insecure --cert ~/.chia/mainnet/config/ssl/full_node/private_full_node.crt --key ~/.chia/mainnet/config/ssl/full_node/private_full_node.key -d '{}' -H "Content-Type: application/json" -X POST https://localhost:8555/get_blockchain_state | python3 -m json.tool

备注，后面的 |python3 -m json.tool 主要是用于美化返回值

返回的结果为

{
    "blockchain_state": {
        "difficulty": 700,
        "genesis_challenge_initialized": true,
        "mempool_size": 7,
        "peak": {
            "challenge_block_info_hash": "0xabeb5fa0c2d07e7763ea5a413cc86723b555cd52fc68de739f989ee04e5143fc",
            "challenge_vdf_output": {
                "data": "0x0000f2c86ab1981b249a47d08a018233c4158bd23f7637b24ef140def7522776f105faedfdee8362b4a82180d5beffcb25eefa437fe2c523b002b8ee04041a03c111dd7a258707796c4baadd502570a30f4a88506cc233ad2e90c2542e8d8d00c8200100"
            },
            "deficit": 0,
            "farmer_puzzle_hash": "0x907491ca39c35bc1f9a6eda33f7c0f97a9f583975088dad7216f1edd79f522ae",
            "fees": null,
            "finished_challenge_slot_hashes": null,
            "finished_infused_challenge_slot_hashes": null,
            "finished_reward_slot_hashes": null,
            "header_hash": "0xccd0938f8605cea8a0d482d77ca83154ee8ded62af19a2058643babf99fda18a",
            "height": 329490,
            "infused_challenge_vdf_output": {
                "data": "0x0000500c9f8a8034e424f06ecfdd5fdc11bbc828025d06828102f0a9eab3d60c35ab8c29ec009b4085a0082689329bd2885b49446866ffe5ebdccf942c0c839df1723d8c1ff05266226c55b65c09ceae7bb80dade1c882ba32323b5c85ca717d8b060100"
            },
            "overflow": false,
            "pool_puzzle_hash": "0x907491ca39c35bc1f9a6eda33f7c0f97a9f583975088dad7216f1edd79f522ae",
            "prev_hash": "0x6b036f3ccb357db391da80e37d01adcfc81db61edff15315c9126da0950c9e3f",
            "prev_transaction_block_hash": null,
            "prev_transaction_block_height": 329487,
            "required_iters": 160829,
            "reward_claims_incorporated": null,
            "reward_infusion_new_challenge": "0xa6de1378705e4808236e006a161a4f77886da2c200df04cd8fc925e8cc255e1a",
            "signage_point_index": 22,
            "sub_epoch_summary_included": null,
            "sub_slot_iters": 113246208,
            "timestamp": null,
            "total_iters": 1066881872957,
            "weight": 40274260
        },
        "space": 11550819449751812096,
        "sub_slot_iters": 113246208,
        "sync": {
            "sync_mode": false,
            "sync_progress_height": 0,
            "sync_tip_height": 0,
            "synced": true
        }
    },
    "success": true
}

里面有几个参数很重要：

一个是返回的是否包含错误，如果 "success" 字段为 true 则结果正确
一个是 blockchain_state/sync/synced 参数，表示当前节点是否已经同步完毕，如果同步完毕则 true
一个是 blockchain_state/peak/header_hash 参数，表示当前最新区块的区块哈希，你可以理解为编号
一个是 blockchain_state/peak/height 参数，表示当前最新的块高

其它参数就看你自己的需要与否了