{
  "block": 106143257,
  "op": [
    "delegate_vesting_shares",
    {
      "delegatee": "ethanhur",
      "delegator": "steem",
      "vesting_shares": "5621.062225 VESTS"
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2026-05-18T00:05:33",
  "trx_id": "52eba5be331830568f69a97916c5034ae9940418",
  "trx_in_block": 1,
  "virtual_op": 0
}

{
  "block": 105974923,
  "op": [
    "delegate_vesting_shares",
    {
      "delegatee": "ethanhur",
      "delegator": "steem",
      "vesting_shares": "2908.851820 VESTS"
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2026-05-12T03:11:03",
  "trx_id": "a42f39266cb9e38018a4384b33e6aeb9d1338412",
  "trx_in_block": 0,
  "virtual_op": 0
}

{
  "block": 105510913,
  "op": [
    "delegate_vesting_shares",
    {
      "delegatee": "ethanhur",
      "delegator": "steem",
      "vesting_shares": "5633.577981 VESTS"
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2026-04-25T23:26:45",
  "trx_id": "310ca92ba8cde664fb3d1cc44f1cf9de686d8a18",
  "trx_in_block": 4,
  "virtual_op": 0
}

{
  "block": 102851281,
  "op": [
    "delegate_vesting_shares",
    {
      "delegatee": "ethanhur",
      "delegator": "steem",
      "vesting_shares": "2950.398639 VESTS"
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2026-01-23T07:21:42",
  "trx_id": "10c303a60c34f93b21c26ace636129bbf068c2c5",
  "trx_in_block": 1,
  "virtual_op": 0
}

{
  "block": 91297702,
  "op": [
    "delegate_vesting_shares",
    {
      "delegatee": "ethanhur",
      "delegator": "steem",
      "vesting_shares": "3114.617836 VESTS"
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2024-12-17T02:41:18",
  "trx_id": "8c3bb30de090aec8c802c8189bd083d8d03f897d",
  "trx_in_block": 4,
  "virtual_op": 0
}

{
  "block": 79851904,
  "op": [
    "delegate_vesting_shares",
    {
      "delegatee": "ethanhur",
      "delegator": "steem",
      "vesting_shares": "3283.751368 VESTS"
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2023-11-13T18:24:09",
  "trx_id": "855c0f4395a4c04e980db04824d367890f68c25e",
  "trx_in_block": 0,
  "virtual_op": 0
}

{
  "block": 78347595,
  "op": [
    "delegate_vesting_shares",
    {
      "delegatee": "ethanhur",
      "delegator": "steem",
      "vesting_shares": "6221.030154 VESTS"
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2023-09-21T21:38:12",
  "trx_id": "e76027d8e6b1b49ccd3cb88b2b28b83028c36387",
  "trx_in_block": 0,
  "virtual_op": 0
}

{
  "block": 69112973,
  "op": [
    "delegate_vesting_shares",
    {
      "delegatee": "ethanhur",
      "delegator": "steem",
      "vesting_shares": "6442.711592 VESTS"
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2022-11-03T11:27:42",
  "trx_id": "0bc1e08557e49fe1f4dc3c00001471c8e8c7b141",
  "trx_in_block": 2,
  "virtual_op": 0
}

{
  "block": 60809162,
  "op": [
    "delegate_vesting_shares",
    {
      "delegatee": "ethanhur",
      "delegator": "steem",
      "vesting_shares": "6663.244823 VESTS"
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2022-01-17T10:44:48",
  "trx_id": "c1e1edca88c82bbf7085a612d776e21d7e3786cf",
  "trx_in_block": 5,
  "virtual_op": 0
}

{
  "block": 54607559,
  "op": [
    "delegate_vesting_shares",
    {
      "delegatee": "ethanhur",
      "delegator": "steem",
      "vesting_shares": "6847.013481 VESTS"
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2021-06-14T00:40:30",
  "trx_id": "0386ca998ccd6a357a98f31529c8614e8589094a",
  "trx_in_block": 1,
  "virtual_op": 0
}

{
  "block": 49355023,
  "op": [
    "delegate_vesting_shares",
    {
      "delegatee": "ethanhur",
      "delegator": "steem",
      "vesting_shares": "7034.435455 VESTS"
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2020-12-11T10:59:33",
  "trx_id": "18e2e9843975d1eef47adec5645e9291ea4cb9fd",
  "trx_in_block": 4,
  "virtual_op": 0
}

{
  "block": 49206589,
  "op": [
    "delegate_vesting_shares",
    {
      "delegatee": "ethanhur",
      "delegator": "steem",
      "vesting_shares": "1912.543513 VESTS"
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2020-12-06T04:36:51",
  "trx_id": "e4cbc9d312ff352de9ae4e5353c2bd8374a838a2",
  "trx_in_block": 0,
  "virtual_op": 0
}

{
  "block": 49190122,
  "op": [
    "delegate_vesting_shares",
    {
      "delegatee": "ethanhur",
      "delegator": "steem",
      "vesting_shares": "7040.643309 VESTS"
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2020-12-05T14:37:45",
  "trx_id": "73b5ff966b116b46d6c388033ca017ab5c9a747e",
  "trx_in_block": 2,
  "virtual_op": 0
}

{
  "block": 48257386,
  "op": [
    "delegate_vesting_shares",
    {
      "delegatee": "ethanhur",
      "delegator": "steem",
      "vesting_shares": "1920.017158 VESTS"
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2020-11-02T15:17:15",
  "trx_id": "25ccca7cd44709c198031de40237719833d15d8c",
  "trx_in_block": 3,
  "virtual_op": 0
}

{
  "block": 43216832,
  "op": [
    "delegate_vesting_shares",
    {
      "delegatee": "ethanhur",
      "delegator": "steem",
      "vesting_shares": "7243.448668 VESTS"
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2020-05-09T05:33:57",
  "trx_id": "6bbbc5b4249a9b372644cfdb392cdb52734a46b0",
  "trx_in_block": 6,
  "virtual_op": 0
}

{
  "block": 43192905,
  "op": [
    "delegate_vesting_shares",
    {
      "delegatee": "ethanhur",
      "delegator": "steem",
      "vesting_shares": "1953.311140 VESTS"
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2020-05-08T09:08:42",
  "trx_id": "745e053b5986e8031c695bd29c6be39aa0cd1d98",
  "trx_in_block": 9,
  "virtual_op": 0
}

{
  "block": 40349336,
  "op": [
    "comment",
    {
      "author": "steemitboard",
      "body": "Congratulations @ethanhur! You received a personal award!\n\n<table><tr><td>https://steemitimages.com/70x70/http://steemitboard.com/@ethanhur/birthday2.png</td><td>Happy Birthday! - You are on the Steem blockchain for 2 years!</td></tr></table>\n\n<sub>_You can view [your badges on your Steem Board](https://steemitboard.com/@ethanhur) and compare to others on the [Steem Ranking](https://steemitboard.com/ranking/index.php?name=ethanhur)_</sub>\n\n\n###### [Vote for @Steemitboard as a witness](https://v2.steemconnect.com/sign/account-witness-vote?witness=steemitboard&approve=1) to get one more award and increased upvotes!",
      "json_metadata": "{\"image\":[\"https://steemitboard.com/img/notify.png\"]}",
      "parent_author": "ethanhur",
      "parent_permlink": "node-js-express",
      "permlink": "steemitboard-notify-ethanhur-20200129t101000000z",
      "title": ""
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2020-01-29T10:10:00",
  "trx_id": "58b3fd36fd34979cb12a7901dd687502638b8bf3",
  "trx_in_block": 3,
  "virtual_op": 0
}

{
  "block": 35084801,
  "op": [
    "delegate_vesting_shares",
    {
      "delegatee": "ethanhur",
      "delegator": "steem",
      "vesting_shares": "7406.406765 VESTS"
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2019-07-29T11:33:00",
  "trx_id": "83630d0442f56a7785a586ab55615e406bfe067a",
  "trx_in_block": 4,
  "virtual_op": 0
}

{
  "block": 29876974,
  "op": [
    "comment",
    {
      "author": "steemitboard",
      "body": "Congratulations @ethanhur! You received a personal award!\n\n<table><tr><td>https://steemitimages.com/70x70/http://steemitboard.com/@ethanhur/birthday1.png</td><td>Happy Birthday! - You are on the Steem blockchain for 1 year!</td></tr></table>\n\n<sub>_[Click here to view your Board](https://steemitboard.com/@ethanhur)_</sub>\n\n\n> Support [SteemitBoard's project](https://steemit.com/@steemitboard)! **[Vote for its witness](https://v2.steemconnect.com/sign/account-witness-vote?witness=steemitboard&approve=1)** and **get one more award**!",
      "json_metadata": "{\"image\":[\"https://steemitboard.com/img/notify.png\"]}",
      "parent_author": "ethanhur",
      "parent_permlink": "node-js-express",
      "permlink": "steemitboard-notify-ethanhur-20190129t101105000z",
      "title": ""
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2019-01-29T10:11:06",
  "trx_id": "76fb7dcd4af8f1f7f2edd573bf8bdeaf8a2896d8",
  "trx_in_block": 2,
  "virtual_op": 0
}

{
  "block": 24993960,
  "op": [
    "delegate_vesting_shares",
    {
      "delegatee": "ethanhur",
      "delegator": "steem",
      "vesting_shares": "7605.033680 VESTS"
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-08-12T05:11:00",
  "trx_id": "f5b68ae60db7df111632985d63e1956f50cff858",
  "trx_in_block": 18,
  "virtual_op": 0
}

{
  "block": 22509562,
  "op": [
    "author_reward",
    {
      "author": "ethanhur",
      "permlink": "node-js-express",
      "sbd_payout": "0.743 SBD",
      "steem_payout": "0.000 STEEM",
      "vesting_payout": "510.730201 VESTS"
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-05-17T12:43:15",
  "trx_id": "0000000000000000000000000000000000000000",
  "trx_in_block": 4294967295,
  "virtual_op": 11
}

{
  "block": 22382789,
  "op": [
    "vote",
    {
      "author": "yunta",
      "permlink": "6s7haz",
      "voter": "ethanhur",
      "weight": 10000
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-05-13T03:03:48",
  "trx_id": "77a2b70b24e635e61188eb257f56018780638111",
  "trx_in_block": 28,
  "virtual_op": 0
}

{
  "block": 22370775,
  "op": [
    "custom_json",
    {
      "id": "follow",
      "json": "[\"follow\",{\"follower\":\"ethanhur\",\"following\":\"dj-on-steem\",\"what\":[\"blog\"]}]",
      "required_auths": [],
      "required_posting_auths": [
        "ethanhur"
      ]
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-05-12T17:03:06",
  "trx_id": "9d512805e98fe07f246a95aec334657bc1904212",
  "trx_in_block": 66,
  "virtual_op": 0
}

{
  "block": 22369531,
  "op": [
    "comment",
    {
      "author": "steemitboard",
      "body": "Congratulations @ethanhur! You have completed some achievement on Steemit and have been rewarded with new badge(s) :\n\n[![](https://steemitimages.com/70x80/http://steemitboard.com/notifications/firstcommented.png)](http://steemitboard.com/@ethanhur) You got a First Reply\n\nClick on any badge to view your own Board of Honor on SteemitBoard.\nFor more information about SteemitBoard, click [here](https://steemit.com/@steemitboard)\n\nIf you no longer want to receive notifications, reply to this comment with the word `STOP`\n\n> Upvote this notification to help all Steemit users. Learn why [here](https://steemit.com/steemitboard/@steemitboard/http-i-cubeupload-com-7ciqeo-png)!",
      "json_metadata": "{\"image\":[\"https://steemitboard.com/img/notifications.png\"]}",
      "parent_author": "ethanhur",
      "parent_permlink": "node-js-express",
      "permlink": "steemitboard-notify-ethanhur-20180512t160054000z",
      "title": ""
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-05-12T16:00:54",
  "trx_id": "da54184717bda0d18680a68e0f27ce05a9c84f75",
  "trx_in_block": 13,
  "virtual_op": 0
}

{
  "block": 22358508,
  "op": [
    "custom_json",
    {
      "id": "follow",
      "json": "[\"follow\",{\"follower\":\"ethanhur\",\"following\":\"jeaimetu\",\"what\":[\"blog\"]}]",
      "required_auths": [],
      "required_posting_auths": [
        "ethanhur"
      ]
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-05-12T06:49:39",
  "trx_id": "8ec404afed5b337335690c9a2fdb12d0bc9c4d41",
  "trx_in_block": 7,
  "virtual_op": 0
}

{
  "block": 22358503,
  "op": [
    "comment",
    {
      "author": "pairplay",
      "body": "@ethanhur Changed your cards. ![c04.png](https://steemitimages.com/DQmTER73nPsvcja7GFAE1Q88xdNbsGvMGsLp7CgtjQSXMfZ/c04.png) ![h06.png](https://steemitimages.com/DQmTagoc7zeNNLfX5rFMtAGZgGKjpNPVCLtf64hSeme8MgT/h06.png)",
      "json_metadata": "",
      "parent_author": "ethanhur",
      "parent_permlink": "re-pairplay-20180512t150006849z-post-20180512t064849311z",
      "permlink": "re-ethanhur-re-pairplay-post-20180512t064923523z",
      "title": ""
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-05-12T06:49:24",
  "trx_id": "e6c36983ad433e2eed64f2461b6a0a17e79dd919",
  "trx_in_block": 47,
  "virtual_op": 0
}

{
  "block": 22358491,
  "op": [
    "comment",
    {
      "author": "ethanhur",
      "body": "/change",
      "json_metadata": "{\"tags\":[\"kr\"],\"app\":\"steemit/0.1\"}",
      "parent_author": "pairplay",
      "parent_permlink": "20180512t150006849z-post",
      "permlink": "re-pairplay-20180512t150006849z-post-20180512t064849311z",
      "title": ""
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-05-12T06:48:48",
  "trx_id": "6bee2680854006c86266ccf10ea2dfac6b2e0288",
  "trx_in_block": 12,
  "virtual_op": 0
}

{
  "block": 22358451,
  "op": [
    "vote",
    {
      "author": "pairplay",
      "permlink": "20180512t150006849z-post",
      "voter": "ethanhur",
      "weight": 10000
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-05-12T06:46:48",
  "trx_id": "10d2bc73f34b6acd73387b5d905325d59a2858f6",
  "trx_in_block": 43,
  "virtual_op": 0
}

{
  "block": 22358334,
  "op": [
    "vote",
    {
      "author": "jeaimetu",
      "permlink": "re-ethanhur-node-js-express-20180511t095252179z",
      "voter": "ethanhur",
      "weight": 10000
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-05-12T06:40:57",
  "trx_id": "3b3b5a9cad424b5ef4749b92508a219de1b90ef5",
  "trx_in_block": 37,
  "virtual_op": 0
}

{
  "block": 22333372,
  "op": [
    "comment",
    {
      "author": "jeaimetu",
      "body": "극한의 테스트이군요..좋은 팁 감사합니다.\n\"로컬에서 포트를 계속 열게 되면 65535 를 넘어가서 소켓 행업이 되어 테스트 자체가 되지 않는다.\"",
      "json_metadata": "{\"tags\":[\"kr-dev\"],\"app\":\"steemit/0.1\"}",
      "parent_author": "ethanhur",
      "parent_permlink": "node-js-express",
      "permlink": "re-ethanhur-node-js-express-20180511t095252179z",
      "title": ""
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-05-11T09:52:51",
  "trx_id": "89dcff78b1352f011ffd5beaae4a73cf8e841977",
  "trx_in_block": 47,
  "virtual_op": 0
}

{
  "block": 22333363,
  "op": [
    "vote",
    {
      "author": "ethanhur",
      "permlink": "node-js-express",
      "voter": "jeaimetu",
      "weight": 10000
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-05-11T09:52:24",
  "trx_id": "7565d7553aa9fad1cf6aad5b3d7f5dfdcbfd6110",
  "trx_in_block": 48,
  "virtual_op": 0
}

{
  "block": 22331842,
  "op": [
    "comment",
    {
      "author": "pairplay",
      "body": "pairplay 가 kr-dev 컨텐츠를 응원합니다! :)",
      "json_metadata": "",
      "parent_author": "ethanhur",
      "parent_permlink": "node-js-express",
      "permlink": "re-ethanhur-node-js-express-20180511t083620575z",
      "title": ""
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-05-11T08:36:21",
  "trx_id": "ff918c831fa7e24b140df7d0ff021a05507ed67c",
  "trx_in_block": 12,
  "virtual_op": 0
}

{
  "block": 22331835,
  "op": [
    "vote",
    {
      "author": "ethanhur",
      "permlink": "node-js-express",
      "voter": "pairplay",
      "weight": 1300
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-05-11T08:36:00",
  "trx_id": "94c23db9960c3393e947a301ef0941c9710ff865",
  "trx_in_block": 16,
  "virtual_op": 0
}

{
  "block": 22313947,
  "op": [
    "vote",
    {
      "author": "ethanhur",
      "permlink": "node-js-express",
      "voter": "clarkgold",
      "weight": 2000
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-05-10T17:41:36",
  "trx_id": "d2bc168aedae3d9ad23601ccc28c715edd4990d9",
  "trx_in_block": 37,
  "virtual_op": 0
}

{
  "block": 22310603,
  "op": [
    "vote",
    {
      "author": "ethanhur",
      "permlink": "node-js-express",
      "voter": "eversloth",
      "weight": 2500
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-05-10T14:54:18",
  "trx_id": "a8aaa71b2ed86226c156146361babe1dde158779",
  "trx_in_block": 43,
  "virtual_op": 0
}

{
  "block": 22309958,
  "op": [
    "vote",
    {
      "author": "ethanhur",
      "permlink": "node-js-express",
      "voter": "brainstormot",
      "weight": 10000
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-05-10T14:22:00",
  "trx_id": "03699b5acd6c03e56f1038d327c810105f7618f7",
  "trx_in_block": 40,
  "virtual_op": 0
}

{
  "block": 22308113,
  "op": [
    "vote",
    {
      "author": "pairplay",
      "permlink": "20180510t150006709z-post",
      "voter": "ethanhur",
      "weight": 10000
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-05-10T12:49:42",
  "trx_id": "0bdaabcbb32b1ff80601a279c8723450948b799b",
  "trx_in_block": 10,
  "virtual_op": 0
}

{
  "block": 22308098,
  "op": [
    "custom_json",
    {
      "id": "follow",
      "json": "[\"follow\",{\"follower\":\"ethanhur\",\"following\":\"pairplay\",\"what\":[\"blog\"]}]",
      "required_auths": [],
      "required_posting_auths": [
        "ethanhur"
      ]
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-05-10T12:48:57",
  "trx_id": "45be974bd06c52310b02efbdaff2417e7bf9fa4a",
  "trx_in_block": 24,
  "virtual_op": 0
}

{
  "block": 22308072,
  "op": [
    "custom_json",
    {
      "id": "follow",
      "json": "[\"follow\",{\"follower\":\"ethanhur\",\"following\":\"leedyd555\",\"what\":[\"blog\"]}]",
      "required_auths": [],
      "required_posting_auths": [
        "ethanhur"
      ]
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-05-10T12:47:39",
  "trx_id": "3e8939bd674909b100ee9bfd1a114cd827214fbc",
  "trx_in_block": 23,
  "virtual_op": 0
}

{
  "block": 22307987,
  "op": [
    "vote",
    {
      "author": "ethanhur",
      "permlink": "node-js-express",
      "voter": "ethanhur",
      "weight": 10000
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-05-10T12:43:24",
  "trx_id": "9e2df4d40fc5e2763969a306131756db4d83824d",
  "trx_in_block": 28,
  "virtual_op": 0
}

{
  "block": 22307984,
  "op": [
    "comment",
    {
      "author": "ethanhur",
      "body": "회사에서 Node.js + Express 로 돌고 있는 서버의 퍼포먼스를 측정하는 일을 했었다.\n\n 실제로 큰 소득이 있지는 않았지만 그 과정에서 깨닫게 된 (당연하게 보이는) 것들을 정리해보았다.\n\n > EC2 C5.xlarge 기준 Express 1 프로세스 (1 core) 의 이론적 Request Per Sec 한계는 4000 정도 인듯 [링크](https://raygun.com/blog/node-js-performance-2017/)\n\n 해당 사항은 실제로 http 프로토콜 상 문제가 아닐까 생각한다. 패킷 까는 데 많은 자원을 소모하는 것 같다.\n\n > 해당 도메인에서 사용하고 있는 가장 빈번한 시나리오로 테스트 해보아야 한다.\n\n 당연한 내용인데, 정작 일하면서 깨닫는 데엔 2일 정도가 걸림. 나무를 보다가 숲을 못 본 케이스.\n\n > 로컬에서 스트레스 테스트를 날릴 땐 소켓 한계 잘 생각하자. Keep-Alive 조건을 주는 것은 거의 필수인듯 [링크](http://docs.likejazz.com/time-wait/)\n\n 로컬에서 포트를 계속 열게 되면 65535 를 넘어가서 소켓 행업이 되어 테스트 자체가 되지 않는다.\n\n > concurrent 유저가 높아질 때 어느 순간부터 latency 가 증가하는 이유는 RPS 한계 때문에 당연히 그럴 수 밖에 없다. 따라서 목표 latency 를 설정하고, 그에 맞춰 horizontal scaling 정책을 수립해야 함.\n\n 생각해보면 당연한 사실인데, 이러한 사실을 깨닫는 데에 시간이 오래 걸렸다. ㅋㅋㅋㅋㅋㅋㅋ\n\n > [V8 최적화](https://github.com/petkaantonov/bluebird/wiki/Optimization-killers) 도 생각해야 한다.\n\n Node 환경에서 JIT 컴파일을 하기 때문에 해당 부분이 Bottleneck 일수도 있다.\n\n # Conclusion\n\n * Node 용 프로파일러 [0x](https://www.npmjs.com/package/0x) 를 사용하여 프로파일링도 했지만, 노드 특성상 콜스택이 날라가버리기 때문에 제대로 된 분석을 하기는 힘들었다.\n * 퍼포먼스 테스트 어렵다. 일단 도메인에 맞는 테스트를 잘 정의해야 하고, 환경도 비슷하게 세팅하거나 환경이 달랐을 때의 영향을 고려해야 한다.\n\n 퍼포먼스 테스트와 병목 지점을 잘 찾아내기 위해선 네트워크 레벨에서부터 컴파일러와 OS의 동작까지 이해를 하고 있어야 가능할 거 같다. 아직 엔지니어로써 갈 길이 멀다는 것을 알게 된 소중한 시간(?)이긴 한 듯.",
      "json_metadata": "{\"tags\":[\"kr-dev\",\"kr\"],\"links\":[\"https://raygun.com/blog/node-js-performance-2017/\",\"http://docs.likejazz.com/time-wait/\",\"https://github.com/petkaantonov/bluebird/wiki/Optimization-killers\",\"https://www.npmjs.com/package/0x\"],\"app\":\"steemit/0.1\",\"format\":\"markdown\"}",
      "parent_author": "",
      "parent_permlink": "kr-dev",
      "permlink": "node-js-express",
      "title": "Node.js + Express 성능 관련 삽질 내용 정리"
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-05-10T12:43:15",
  "trx_id": "1d5b6f31ec02f3c53c26cd19e900eb3aa2fc9c43",
  "trx_in_block": 10,
  "virtual_op": 0
}

{
  "block": 22307570,
  "op": [
    "custom_json",
    {
      "id": "follow",
      "json": "[\"follow\",{\"follower\":\"ethanhur\",\"following\":\"leedyd555\",\"what\":[\"blog\"]}]",
      "required_auths": [],
      "required_posting_auths": [
        "ethanhur"
      ]
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-05-10T12:22:30",
  "trx_id": "91cf5f2f11eb3db2a18adc755e049e0ab42ce057",
  "trx_in_block": 16,
  "virtual_op": 0
}

{
  "block": 22105800,
  "op": [
    "claim_reward_balance",
    {
      "account": "ethanhur",
      "reward_sbd": "0.029 SBD",
      "reward_steem": "0.000 STEEM",
      "reward_vests": "20.369892 VESTS"
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-05-03T12:11:00",
  "trx_id": "e709fadafb21e3aeaffa6528fef7ea2cbc5c2bef",
  "trx_in_block": 41,
  "virtual_op": 0
}

{
  "block": 21907615,
  "op": [
    "author_reward",
    {
      "author": "ethanhur",
      "permlink": "it",
      "sbd_payout": "0.029 SBD",
      "steem_payout": "0.000 STEEM",
      "vesting_payout": "20.369892 VESTS"
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-04-26T14:59:21",
  "trx_id": "0000000000000000000000000000000000000000",
  "trx_in_block": 4294967295,
  "virtual_op": 4
}

{
  "block": 21821392,
  "op": [
    "comment",
    {
      "author": "pairplay",
      "body": "@ethanhur Changed your cards. ![c04.png](https://steemitimages.com/DQmTER73nPsvcja7GFAE1Q88xdNbsGvMGsLp7CgtjQSXMfZ/c04.png) ![d09.png](https://steemitimages.com/DQmXh9GdBvVPrgnUacepwpgvRvZrtWvXmB4nTqr75eaNf6q/d09.png)",
      "json_metadata": "",
      "parent_author": "ethanhur",
      "parent_permlink": "re-pairplay-20180423t230005818z-post-20180423t143250870z",
      "permlink": "re-ethanhur-re-pairplay-post-20180423t143529469z",
      "title": ""
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-04-23T14:35:30",
  "trx_id": "3a970b9ef2601e4d333124e1f75db0f216f162db",
  "trx_in_block": 38,
  "virtual_op": 0
}

{
  "block": 21821337,
  "op": [
    "comment",
    {
      "author": "ethanhur",
      "body": "/change",
      "json_metadata": "{\"tags\":[\"kr\"],\"app\":\"steemit/0.1\"}",
      "parent_author": "pairplay",
      "parent_permlink": "20180423t230005818z-post",
      "permlink": "re-pairplay-20180423t230005818z-post-20180423t143250870z",
      "title": ""
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-04-23T14:32:45",
  "trx_id": "f42dce84de08f5a110a8b770a961f572ff00e10c",
  "trx_in_block": 34,
  "virtual_op": 0
}

{
  "block": 21821232,
  "op": [
    "vote",
    {
      "author": "pairplay",
      "permlink": "20180423t230005818z-post",
      "voter": "ethanhur",
      "weight": 10000
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-04-23T14:27:30",
  "trx_id": "a60ce29135258e414c09893abac5fc2c7d0dbb77",
  "trx_in_block": 16,
  "virtual_op": 0
}

{
  "block": 21818735,
  "op": [
    "delegate_vesting_shares",
    {
      "delegatee": "ethanhur",
      "delegator": "steem",
      "vesting_shares": "28057.310694 VESTS"
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-04-23T12:22:39",
  "trx_id": "85e122dd26ac690e042c471578a14b78ad4c27d0",
  "trx_in_block": 52,
  "virtual_op": 0
}

{
  "block": 21798994,
  "op": [
    "vote",
    {
      "author": "ethanhur",
      "permlink": "it",
      "voter": "dj-on-steem",
      "weight": 4000
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-04-22T19:55:33",
  "trx_id": "6b520c200bbf319cfc6dd52c15bcc02f7e680f4b",
  "trx_in_block": 16,
  "virtual_op": 0
}

{
  "block": 21723510,
  "op": [
    "vote",
    {
      "author": "ethanhur",
      "permlink": "it",
      "voter": "eversloth",
      "weight": 1000
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-04-20T05:00:42",
  "trx_id": "607547f5cdc83a194835505501b21a845ac4dce9",
  "trx_in_block": 45,
  "virtual_op": 0
}

{
  "block": 21706709,
  "op": [
    "claim_reward_balance",
    {
      "account": "ethanhur",
      "reward_sbd": "0.000 SBD",
      "reward_steem": "0.000 STEEM",
      "reward_vests": "136.649452 VESTS"
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-04-19T15:00:24",
  "trx_id": "d2a2acc6fd670d94f4f8c96debbb6d399f7c53cc",
  "trx_in_block": 67,
  "virtual_op": 0
}

{
  "block": 21706688,
  "op": [
    "vote",
    {
      "author": "ethanhur",
      "permlink": "it",
      "voter": "ethanhur",
      "weight": 10000
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-04-19T14:59:21",
  "trx_id": "9980186eb70e789a87a5059df469360191c2cfac",
  "trx_in_block": 9,
  "virtual_op": 0
}

{
  "block": 21706688,
  "op": [
    "comment",
    {
      "author": "ethanhur",
      "body": "심심해서 YES24 에서 책을 뒤져보다가 산 [그림으로 배우는 IT 인프라 구조](http://www.yes24.com/24/goods/19041948?scode=032&OzSrank=1)를 읽었다.\n\n 목차의 키워드만 보고 읽어봐야 할 내용일 거 같아서 구매하고는, 이직에 바빠 읽지 않았었다.\n\n 정리하는 느낌으로 읽었는데, 그리 배운 건 많지 않은 것 같다.\n\n 일단 책 자체가 옛날 책이고, 엄청나게 broad 한 내용을 다루고 있어서 다루지 않는 내용들이 많다.\n\n 뒤로 갈수록 그나마 볼 내용이 있었으나, 클라우드 시대에서는 어플리케이션 개발자가 그리 심각하게 고민하지 않아도 되는 내용이거나 너무 전문적인 내용이라 겉핥기만 하고 지나가는 느낌이었다.\n\n 그냥 키워드를 한 번 훑고 갔다는 의미 이상은 없는 것 같다.\n\n 굳이 이 책을 살 필요는 없는 것 같다.",
      "json_metadata": "{\"tags\":[\"kr-dev\",\"kr\"],\"links\":[\"http://www.yes24.com/24/goods/19041948?scode=032&OzSrank=1\"],\"app\":\"steemit/0.1\",\"format\":\"markdown\"}",
      "parent_author": "",
      "parent_permlink": "kr-dev",
      "permlink": "it",
      "title": "그림으로 배우는 IT 인프라 구조 를 읽고"
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-04-19T14:59:21",
  "trx_id": "9980186eb70e789a87a5059df469360191c2cfac",
  "trx_in_block": 9,
  "virtual_op": 0
}

{
  "block": 21218153,
  "op": [
    "author_reward",
    {
      "author": "ethanhur",
      "permlink": "tdd",
      "sbd_payout": "0.000 SBD",
      "steem_payout": "0.000 STEEM",
      "vesting_payout": "136.649452 VESTS"
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-04-02T15:49:21",
  "trx_id": "0000000000000000000000000000000000000000",
  "trx_in_block": 4294967295,
  "virtual_op": 15
}

{
  "block": 21101490,
  "op": [
    "custom_json",
    {
      "id": "follow",
      "json": "[\"follow\",{\"follower\":\"ethanhur\",\"following\":\"jacobyu\",\"what\":[\"blog\"]}]",
      "required_auths": [],
      "required_posting_auths": [
        "ethanhur"
      ]
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-03-29T14:34:45",
  "trx_id": "f062872b89257074d6100b5d3d9824abe99754c1",
  "trx_in_block": 13,
  "virtual_op": 0
}

{
  "block": 21101473,
  "op": [
    "comment",
    {
      "author": "dj-on-steem",
      "body": "사실 전 TDD가 뭔지 잘 모르겠지만, 글 제목 옆에 온천마크가 신경쓰여 들어왔습니다. 혹시 일부러 그러신게 아니라면 글 올릴 시 보상은 스달/스팀 반반으로 하시길 권장합니다. 왜냐면 이게 저자에게 더 이득이거든요. (스팀 100%로 하면 글 제목 옆에 온천마크가 뜹니다.)",
      "json_metadata": "{\"tags\":[\"kr-dev\"],\"app\":\"steemkr/0.1\"}",
      "parent_author": "ethanhur",
      "parent_permlink": "tdd",
      "permlink": "re-ethanhur-tdd-20180329t143357298z",
      "title": ""
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-03-29T14:33:54",
  "trx_id": "3da3fd0ff094bc0f04b27a18ee1a8a99eaf861ee",
  "trx_in_block": 38,
  "virtual_op": 0
}

{
  "block": 21101438,
  "op": [
    "vote",
    {
      "author": "ethanhur",
      "permlink": "tdd",
      "voter": "dj-on-steem",
      "weight": 4000
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-03-29T14:32:09",
  "trx_id": "71e883941a4d1ae856e70c4e49cabbbdd638ec9e",
  "trx_in_block": 7,
  "virtual_op": 0
}

{
  "block": 21041752,
  "op": [
    "comment",
    {
      "author": "jacobyu",
      "body": "테스트 주도 개발\n세미나에서 실습도해봤는데\n적용을 제대로 못해본거같아요.\n담에 한번 이책 봐보고싶군요!",
      "json_metadata": "{\"tags\":[\"kr-dev\"],\"app\":\"esteem/1.5.1\",\"format\":\"markdown+html\",\"community\":\"esteem\"}",
      "parent_author": "ethanhur",
      "parent_permlink": "tdd",
      "permlink": "re-ethanhur-2018327t192915979z",
      "title": ""
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-03-27T12:46:30",
  "trx_id": "5d795d0b5a6ae45c1357fe37aac84afc9be9cc02",
  "trx_in_block": 59,
  "virtual_op": 0
}

{
  "block": 21039008,
  "op": [
    "comment",
    {
      "author": "jacobyu",
      "body": "테스트 주도 개발\n세미나에서 실습도해봤는데\n적용을 제대로 못해본거같아요.",
      "json_metadata": "{\"tags\":[\"kr-dev\"],\"app\":\"esteem/1.5.1\",\"format\":\"markdown+html\",\"community\":\"esteem\"}",
      "parent_author": "ethanhur",
      "parent_permlink": "tdd",
      "permlink": "re-ethanhur-2018327t192915979z",
      "title": ""
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-03-27T10:29:15",
  "trx_id": "391cc0cfd56443593abacd8d2260a7ff0ed5daae",
  "trx_in_block": 71,
  "virtual_op": 0
}

{
  "block": 21038991,
  "op": [
    "vote",
    {
      "author": "ethanhur",
      "permlink": "tdd",
      "voter": "jacobyu",
      "weight": 2537
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-03-27T10:28:24",
  "trx_id": "4c1dc845cca3b0933ff98aab696c61d106deab58",
  "trx_in_block": 48,
  "virtual_op": 0
}

{
  "block": 21023700,
  "op": [
    "vote",
    {
      "author": "ethanhur",
      "permlink": "tdd",
      "voter": "wonsama",
      "weight": 1000
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-03-26T21:43:48",
  "trx_id": "6325525bac5bfe2ffcbda90c094267bfdbc5f69c",
  "trx_in_block": 39,
  "virtual_op": 0
}

{
  "block": 21016633,
  "op": [
    "vote",
    {
      "author": "ethanhur",
      "permlink": "tdd",
      "voter": "ubg",
      "weight": 100
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-03-26T15:50:21",
  "trx_id": "4149b7607e05d8aec87df8929b8a10db3476bff2",
  "trx_in_block": 26,
  "virtual_op": 0
}

{
  "block": 21016613,
  "op": [
    "vote",
    {
      "author": "ethanhur",
      "permlink": "tdd",
      "voter": "ethanhur",
      "weight": 10000
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-03-26T15:49:21",
  "trx_id": "79bc85883a3276fdee62862a5cc048af7e165c4f",
  "trx_in_block": 42,
  "virtual_op": 0
}

{
  "block": 21016613,
  "op": [
    "comment_options",
    {
      "allow_curation_rewards": true,
      "allow_votes": true,
      "author": "ethanhur",
      "extensions": [],
      "max_accepted_payout": "1000000.000 SBD",
      "percent_steem_dollars": 0,
      "permlink": "tdd"
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-03-26T15:49:21",
  "trx_id": "79bc85883a3276fdee62862a5cc048af7e165c4f",
  "trx_in_block": 42,
  "virtual_op": 0
}

{
  "block": 21016613,
  "op": [
    "comment",
    {
      "author": "ethanhur",
      "body": "언제나 그렇듯 추천을 받고 [TDD:By Example](https://www.amazon.com/Test-Driven-Development-Kent-Beck/dp/0321146530) 을 읽었다.\n\n 사실 1부의 Currency Example 의 전개 과정을 읽고 싶어서 샀는데, 나름 재미있어서 금방 읽은 것 같다.\n\n 1부에서 켄트 벡 아조씨의 논리전개는 정말 환상적이었다. 밥 아저씨의 그림을 보는 것처럼 쓱싹쓱싹 뭔가를 하니 시스템이 하나 완성된 느낌이랄까?\n\n 1부 마지막에서는 처음 작성했던 모델과 딴판인 모델이 되었지만, 그것이 만들어지는 과정이 정말 논리적이었고, 수긍을 할 수 밖에 없었다.\n\n 3부에서는 TDD의 각종 패턴들에 대해 설명하는데, 디자인 패턴과 겹치는 부분도 있고 살짝 그냥 읽고 넘긴 것 같다.\n\n 하지만 내용은 곱씹으면 정말 도움이 많이 되는 말들이 많은 것 같아, 틈틈이 훑으면서 외울 생각이다.\n\n 솔직히 말하면 책에 나오는 정도까지 Test-Driven 한 개발을 실제로 할 수 있을 지는 모르겠다.\n\n 하지만 TDD에서 설명하는 논리는 아주 우아하고, 마치 그렇게 개발을 해야 할 것 같다.\n\n 적어도 TDD의 철학을 생각하며 개발을 할 순 있겠지.",
      "json_metadata": "{\"tags\":[\"kr-dev\"],\"links\":[\"https://www.amazon.com/Test-Driven-Development-Kent-Beck/dp/0321146530\"],\"app\":\"steemit/0.1\",\"format\":\"markdown\"}",
      "parent_author": "",
      "parent_permlink": "kr-dev",
      "permlink": "tdd",
      "title": "TDD를 읽고"
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-03-26T15:49:21",
  "trx_id": "79bc85883a3276fdee62862a5cc048af7e165c4f",
  "trx_in_block": 42,
  "virtual_op": 0
}

{
  "block": 20689328,
  "op": [
    "comment",
    {
      "author": "kdj",
      "body": "https://wecodetheweb.com/2016/02/12/immutable-javascript-using-es6-and-beyond/",
      "json_metadata": "{\"tags\":[\"kr-dev\"],\"links\":[\"https://wecodetheweb.com/2016/02/12/immutable-javascript-using-es6-and-beyond/\"],\"app\":\"steemit/0.1\"}",
      "parent_author": "ethanhur",
      "parent_permlink": "re-kdj-re-ethanhur-value-object-pattern-20180312t150336741z",
      "permlink": "re-ethanhur-re-kdj-re-ethanhur-value-object-pattern-20180315t061859779z",
      "title": ""
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-03-15T06:19:00",
  "trx_id": "421d3520eee75679f30f511ab5623966fa9487b5",
  "trx_in_block": 28,
  "virtual_op": 0
}

{
  "block": 20668398,
  "op": [
    "custom_json",
    {
      "id": "follow",
      "json": "[\"follow\",{\"follower\":\"ethanhur\",\"following\":\"osyvv\",\"what\":[\"blog\"]}]",
      "required_auths": [],
      "required_posting_auths": [
        "ethanhur"
      ]
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-03-14T12:49:09",
  "trx_id": "d786a0e72b9bddd3041499a8ba191a9cecd82df7",
  "trx_in_block": 7,
  "virtual_op": 0
}

{
  "block": 20616853,
  "op": [
    "delegate_vesting_shares",
    {
      "delegatee": "ethanhur",
      "delegator": "steem",
      "vesting_shares": "28261.111007 VESTS"
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-03-12T17:50:51",
  "trx_id": "60df46f9e98c76a52435e65d1ab7c39ba1a8c40e",
  "trx_in_block": 44,
  "virtual_op": 0
}

{
  "block": 20613528,
  "op": [
    "claim_reward_balance",
    {
      "account": "ethanhur",
      "reward_sbd": "0.000 SBD",
      "reward_steem": "0.000 STEEM",
      "reward_vests": "561.523179 VESTS"
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-03-12T15:04:30",
  "trx_id": "d42da18f7e9f5b5d864db2cd66f093eaaad20fc0",
  "trx_in_block": 21,
  "virtual_op": 0
}

{
  "block": 20613514,
  "op": [
    "comment",
    {
      "author": "ethanhur",
      "body": "좋은 답변 감사합니다.\n\n그런데 ... 와 immutable programming 이 어떻게 관련이 있는지 잘 이해가 안되네요.",
      "json_metadata": "{\"tags\":[\"kr-dev\"],\"app\":\"steemit/0.1\"}",
      "parent_author": "kdj",
      "parent_permlink": "re-ethanhur-value-object-pattern-20180307t084837630z",
      "permlink": "re-kdj-re-ethanhur-value-object-pattern-20180312t150336741z",
      "title": ""
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-03-12T15:03:48",
  "trx_id": "ed127ef746d914b8deb22fe8154d5d6c65774b0c",
  "trx_in_block": 11,
  "virtual_op": 0
}

{
  "block": 20613305,
  "op": [
    "vote",
    {
      "author": "kdj",
      "permlink": "re-ethanhur-value-object-pattern-20180307t084837630z",
      "voter": "ethanhur",
      "weight": 10000
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-03-12T14:53:18",
  "trx_id": "c5aedaff449a9d460c94270f5aa650d501883483",
  "trx_in_block": 54,
  "virtual_op": 0
}

{
  "block": 20586744,
  "op": [
    "author_reward",
    {
      "author": "ethanhur",
      "permlink": "value-object-pattern",
      "sbd_payout": "0.000 SBD",
      "steem_payout": "0.000 STEEM",
      "vesting_payout": "561.523179 VESTS"
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-03-11T16:43:06",
  "trx_id": "0000000000000000000000000000000000000000",
  "trx_in_block": 4294967295,
  "virtual_op": 5
}

{
  "block": 20471604,
  "op": [
    "vote",
    {
      "author": "ethanhur",
      "permlink": "value-object-pattern",
      "voter": "brainstormot",
      "weight": 10000
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-03-07T16:37:21",
  "trx_id": "b8cb77bde4541ff66db2c6fc39917a1d637704f0",
  "trx_in_block": 12,
  "virtual_op": 0
}

{
  "block": 20462264,
  "op": [
    "comment",
    {
      "author": "kdj",
      "body": "Value 는 상수, Object 는 변수\n모든 객체를 Value 화 하자는 것이 immutable programming 개념이며, 함수형 언어에서 중요시 하는 부분이기도 합니다.\nJavascript 의 Spread 연산자 (...) 를 이해해 보는 것이 좋을 듯 하네요...",
      "json_metadata": "{\"tags\":[\"kr-dev\"],\"app\":\"steemit/0.1\"}",
      "parent_author": "ethanhur",
      "parent_permlink": "value-object-pattern",
      "permlink": "re-ethanhur-value-object-pattern-20180307t084837630z",
      "title": ""
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-03-07T08:48:39",
  "trx_id": "17fc4e4be9f8e3f60e21671c28c57fb63607aedd",
  "trx_in_block": 12,
  "virtual_op": 0
}

{
  "block": 20462142,
  "op": [
    "vote",
    {
      "author": "ethanhur",
      "permlink": "value-object-pattern",
      "voter": "kdj",
      "weight": 2000
    }
  ],
  "op_in_trx": 0,
  "timestamp": "2018-03-07T08:42:33",
  "trx_id": "17162992591f9a3ef82edd22418056d606a1f935",
  "trx_in_block": 6,
  "virtual_op": 0
}