Optimizing Ruby’s JSON, Part 1
I was recently made maintainer of the json gem, and aside from fixing some old bugs, I focused quite a bit on its performance, so that it is now the fastest JSON parser and generator for Ruby on most benchmarks. Contrary to what one might think, there wasn’t any black magic or deep knowledge involved. Most of the performance patches I applied were fairly simple optimizations driven by profiling. A
Building a high performance JSON parser
This talk is a case study of designing an efficient Go package. I’m going to use the example of building a high performance JSON parser. Supports streaming operations It’s unrealistic to expect to have the entire input in memory. Buffering in memory is a availability risk, input sizes are usually unknown and potentially unbounded. Buffering before processing introduces latency. Streaming reads let
Parsing JSON faster with Intel AVX-512 – Daniel Lemire's blog
Many recent Intel processors benefit from a new family of instructions called AVX-512. These instructions operate over wide registers (up to 512 bits) and follow the Single instruction, multiple data (SIMD)Â paradigm. These new AVX-512 instructions allow you to break some speed records, such as decoding base64 data at the speed of a memory copy. Most modern processors have SIMD instructions. The AV
Big Sky :: RapidJSON ã‚„ simdjson よりも速ã„C言語ã‹ã‚‰ä½¿ãˆã‚‹JSONライブラリ「yyjsonã€
ãŠãªã˜ã¿C/C++ã‹ã‚‰ä½¿ãˆã‚‹JSONライブラリを紹介ã™ã‚‹ã‚³ãƒ¼ãƒŠãƒ¼ã€‚ã¾ãšã¯éŽåŽ»ã®ã¾ã¨ã‚。 ヘッダファイルã ã‘ã§C++ã‹ã‚‰ä½¿ãˆã‚‹JSONパーサ「picojsonã€ãŒå‡„ã„ï¼ ä½•ã‚‚è¦‹ãšã«C++ã§jsonパーサãŒæ›¸ã‘ã‚‹ã‹è©¦ã—ã¦ã¿ãŸã€‚ C言語ã‹ã‚‰ä½¿ãˆã‚‹JSONパーサã€JSMNを試ã—ã¦ã¿ãŸã€‚ 僕ãŒboost::asioã¨boost::property_treeを使ã„HTTPプãƒã‚シ環境下ã§éžåŒæœŸã«Google Search APIã‹ã‚‰æ¤œç´¢ã™ã‚‹ã¾ã§ã«ã‚„ã£ãŸã€ãŸã£ãŸä¸€ã¤ã®äº‹ã€‚ C言語ã‹ã‚‰ä½¿ãˆã‚‹JSONパーサã€parson ãŒæ€ã£ãŸä»¥ä¸Šã«è‰¯ã„仕事をã—ã¦ã„る。 最速ã¨è¨€ã‚れる JSON パーサ「rapidjsonã€ãŒæœ¬å½“ã«çˆ†é€Ÿãªã®ã‹è©¦ã—ã¦ã¿ãŸã€‚ C言語ã‹ã‚‰ä½¿ãˆã‚‹JSONパーサã€jansson ãŒã¨ã¦ã‚‚ç›´æ„Ÿçš„ã§è‰¯ã„ C++ 㧠STL フレンドリã«æ‰±ãˆã‚‹JSONパーサ「json.hpp〠コメントも扱ãˆã‚‹é«˜æ©Ÿèƒ½ãª
JSONã‚’ã„ã„æ„Ÿã˜ã«è¦‹ã‚‹CLIを作ã£ãŸ
ãã®ä»– OS ã®æ–¹ã¯ GitHub ã®release ページã‹ã‚‰ DL ã™ã‚‹ã“ã¨ãŒã§ãã¾ã™ã€‚ 使ã„æ–¹ tv ã¯ãƒŸãƒ‹ãƒžãƒ 㪠CLI ã¨ã—ã¦ä½œã£ãŸã®ã§ãƒ†ãƒ¼ãƒ–ル表示ã®æ©Ÿèƒ½ã¨ãã‚Œã«ä»˜éšã—ãŸã‚ªãƒ—ションã®ã¿ã‚’æä¾›ã—ã¦ã„ã¾ã™ã€‚ é…列ã«ãªã£ã¦ã„ã‚‹ JSON をテーブル表示ã™ã‚‹ ã‚ーを指定ã™ã‚‹ã“ã¨ã§ãã®ã‚ーを使ã£ã¦ã‚½ãƒ¼ãƒˆã§ãã‚‹ ã„ãã¤ã‹ã®ã‚¹ã‚¿ã‚¤ãƒ«ã§ãƒ†ãƒ¼ãƒ–ルを表示ã§ãã‚‹ 以上ãŒä¸»ã®æ©Ÿèƒ½ã§ã™ã€‚ Table 表示 ユースケースã¨ã—㦠JSON ãŒå¸°ã£ã¦ãã‚‹ API を想定ã—ã¾ã™ã€‚ API ã®ä¾‹ã¨ã—㦠jsonplaceholder を利用ã—ã¾ã™ã€‚ 今回㯠https://jsonplaceholder.typicode.com/users を使ã„ã¾ã™ã€‚ ã“ã® API ã¯ä»¥ä¸‹ã®ã‚ˆã†ãªãƒ‡ãƒ¼ã‚¿ãŒè¿”ã£ã¦ãã¾ã™ã€‚ $ curl -s https://jsonplaceholder.typicode.com/users [
JSON5 – JSON for Humans
JSON for Humans View the Project on GitHub json5/json5 JSON5 – JSON for Humans JSON5 is an extension to the popular JSON file format that aims to be easier to write and maintain by hand (e.g. for config files). It is not intended to be used for machine-to-machine communication. (Keep using JSON or other file formats for that. 🙂) JSON5 was started in 2012, and as of 2022, now gets >65M downloads/w
JSON Schema をクックパッドマートã®å•†å“登録画é¢ã«å°Žå…¥ã—ãŸè©± - クックパッド開発者ブãƒã‚°
主ã«ãƒãƒƒã‚¯ã‚¨ãƒ³ãƒ‰ã®ã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ã¨ã—ã¦ã‚¯ãƒƒã‚¯ãƒ‘ッドマートã®é–‹ç™ºã«æºã‚ã£ã¦ã„る塩出（ @solt9029 ）ã§ã™ã€‚ 美味ã—ã„食æをユーザã«ãŠå±Šã‘ã™ã‚‹ã‚µãƒ¼ãƒ“スã§ã‚るクックパッドマートã§ã¯ã€æ—¥ã€…è¡—ã®è²©å£²åº—や地域ã®ç”Ÿç”£è€…ãŒå•†å“ã®ç™»éŒ²ã‚’è¡Œã£ã¦ã„ã¾ã™ã€‚ 商å“を登録ã™ã‚‹éš›ã€è²©å£²è€…ã¯æ¶ˆè²»æœŸé™ã‚’ã¯ã˜ã‚ã¨ã™ã‚‹æ§˜ã€…ãªå“質ä¿è¨¼ã®æƒ…å ±ã‚’æ£ç¢ºã«å…¥åŠ›ã™ã‚‹å¿…è¦ãŒã‚ã‚Šã¾ã™ã€‚ ã—ã‹ã—ã€å•†å“ã®ç¨®é¡žã‚„状態ã«å¿œã˜ã¦è¨˜è¼‰ã™ã‚‹ã¹ãå“質ä¿è¨¼ã®æƒ…å ±ã¯ç•°ãªã‚‹ãŸã‚ã€å…¨é …ç›®ãŒç¾…列ã•ã‚Œã‚‹ãƒ•ã‚©ãƒ¼ãƒ ã§ã¯æ£ç¢ºãªå…¥åŠ›ãŒå›°é›£ã§ã‚ã‚Šã€è²©å£²è€…ãŠã‚ˆã³å•†å“ã®å¯©æŸ»ã‚’è¡Œã†ç¤¾å†…ã®é‹ç”¨ãƒ¡ãƒ³ãƒã«å¯¾ã—ã¦å¤§ããªè² æ‹…ã‚’ã‹ã‘ã¦ã„ã¾ã—ãŸã€‚ ãã“ã§ã€ JSON Schema を利用ã—ã¦è¤‡é›‘ãªãƒ•ã‚©ãƒ¼ãƒ ã®å‡ºã—分ã‘を自動ã§åˆ¶å¾¡ã—ã€ã¾ãŸãƒãƒƒã‚¯ã‚¨ãƒ³ãƒ‰å´ã§ã®ãƒãƒªãƒ‡ãƒ¼ã‚·ãƒ§ãƒ³ã‚‚è¡Œã†ã“ã¨ãŒå‡ºæ¥ã‚‹ä»•çµ„ã¿ã‚’å°Žå…¥ã—ã¾ã—ãŸã€‚ ãã®çµæžœã€å•†å“ã®ç¨®é¡žã‚„状態をé¸æŠžã™ã‚‹ã ã‘ã§ã€é©åˆ‡ãªå“質ä¿è¨¼ã®æƒ…å ±ãŒè‡ªå‹•çš„ã«å…¥åŠ›ã•ã‚Œã€å¿…è¦ãª
JSON Type Definition
package com.example; import com.fasterxml.jackson.annotation.JsonProperty; import com.fasterxml.jackson.databind.annotation.JsonSerialize; import java.time.OffsetDateTime; @JsonSerialize public class User { @JsonProperty("createdAt") private OffsetDateTime createdAt; @JsonProperty("id") private String id; @JsonProperty("isAdmin") private Boolean isAdmin; @JsonProperty("karma") private Integer karm
curl write-out JSON
This is not a command line option of the week post, but I feel a need to tell you a little about our brand new addition! --write-out [format] This option takes a format string in which there are a number of different “variables†available that let’s a user output information from the previous transfer. For example, you can get the HTTP response code from a transfer like this: curl -w 'code: %{resp
OSSã®JSONエディタをElectronアプリã«ç§»æ¤ã—㟠- マルシテイア
josdejongæ°ä½œã®JSONエディタをã€Electronã§ãƒ‡ã‚¹ã‚¯ãƒˆãƒƒãƒ—用アプリã«ç§»æ¤ã—ã¾ã—ãŸã€‚ github.com å…ƒã®JSONエディタã¯ã“ã¡ã‚‰ã€‚ã‚ã¡ã‚ƒé«˜æ©Ÿèƒ½ã§ä¾¿åˆ©ã€‚ 僕ãŒæ›¸ã„ãŸã‚³ãƒ¼ãƒ‰ã¯ãŸã£ãŸ200è¡Œãらã„ã§ã™ã€‚ github.com ãªãœä½œã£ãŸ 仕事ã§ã‚¤ãƒ™ãƒ³ãƒˆç”¨ã®Unityアプリを作る事ãŒå¤šã„ ç¾å ´ã§ãƒ‘ラメータを調整ã™ã‚‹ãŸã‚ã«ã€ãƒ‘ラメータをJSONã‚„CSVファイルã«å‡ºã—ã¦ãŠãã“ã¨ãŒå¤šã„ SRDebuggerã¨ã‹ã§ã‚¢ãƒ—リ内ã«è¨å®šç”»é¢ã‚’作る事も多ã„ã‘ã©ã€ãã®æ™‚é–“ã™ã‚‰ãªã„事もã‚ã‚‹ プãƒã‚°ãƒ©ãƒžãƒ¼çš„ã«ã¯JSONを使ã„ãŸã„ プãƒã‚°ãƒ©ãƒžãƒ¼ä»¥å¤–ã®æ™®é€šã®äººã«ã¨ã£ã¦ã¯ã€JSONã®ç·¨é›†ã¯é›£ã—ã„ CSVã¯ã‚¨ã‚¯ã‚»ãƒ«ã§ç·¨é›†ã§ãã¦ä¾¿åˆ©ã¨ã„ã†ä¸–界観 普通ã®äººãŒä½¿ãˆã‚‹JSONエディタãŒã»ã—ㄠオンラインJSONエディタã¯è‰¯ã„奴ãŒãŸãã•ã‚“ã‚ã‚‹ exeã§æ¬²ã—ã„ã‚“ã ãŒï¼ï¼ï¼ Electronã§ãƒ©ãƒƒãƒ—ã—ãŸã‚‰è‰¯ã„ã®ã§ã¯ï¼Ÿ E
JSONã‚„YAMLã®ãƒ‡ãƒ¼ã‚¿æ§‹é€ ã‚’ãƒã‚§ãƒƒã‚¯ã™ã‚‹ãƒ©ã‚¤ãƒ–ラリStrongJSONã®ã”紹介 - soutaroブãƒã‚°
JSONã‚„YAMLを使ã†ã¨ã€ã‹ãªã‚Šè¤‡é›‘ãªãƒ‡ãƒ¼ã‚¿ãŒä½œæˆã§ãã¾ã™ãŒã€ã“ã‚ŒãŒæ„図通りã®å½¢å¼ã«ãªã£ã¦ã„ã‚‹ã‹ã‚’確èªã™ã‚‹ã®ã¯è‡ªæ˜Žã§ã¯ã‚ã‚Šã¾ã›ã‚“。XMLã«ã¯XML SchemaãŒã‚ã‚Šã¾ã™ãŒã€ãã‚“ãªæ„Ÿã˜ã®ã‚‚ã®ãŒJSONã«ã‚‚欲ã—ã‹ã£ãŸã®ã§ã€ä½œã‚Šã¾ã—ãŸã€‚ github.com ã“ã‚“ãªæ„Ÿã˜ã§ä½¿ã„ã¾ã™ã€‚ Schema = StrongJSON.new do let :phone, object(phone: string) let :email, object(email: string) let :contact, enum(phone, email) let :person, object(name: string, contacts: array(contact)) end json = Schema.person.coerce(JSON.parse(input, symbolize_names: true
良ã„æ„Ÿã˜ã«è©°ã‚ã¦æ•´å½¢ã—ã¦ãれる JSON pretty-printer「jppã€ã‚’作りã¾ã—㟠- ãŸã«ã—ãã‚“ãダãƒ
jpp ã¨ã„ã†JSON Pretty-Printer を作りã¾ã—ãŸã€‚ github.com ã“ã®ã‚³ãƒžãƒ³ãƒ‰ã¯JSONã‚’è¦ç´ ã”ã¨ã«1ã¤1ã¤æ”¹è¡Œã™ã‚‹ã®ã§ã¯ãªãã€ç”»é¢å†…(ã‚‚ã—ãã¯æŒ‡å®šã—ãŸå¹…)ã«åŽã¾ã‚‹é™ã‚Šã§ãã‚‹ã ã‘改行を挟ã¾ãšã«è¦ç´ を表示ã—ã¾ã™ã€‚ ãã®ãŸã‚ã€ä¾‹ãˆã°arrayã®ä¸èº«ã«å¤§é‡ã®è¦ç´ ãŒå…¥ã£ã¦ã„ã‚‹ã‚‚ã®ã‚„ã€objectã®ä¸èº«ã«fieldãŒå¤§é‡ã«ã‚るよã†ãªJSONを表示ã™ã‚‹éš›ã€æ”¹è¡Œã‚’ã§ãã‚‹é™ã‚ŠæŠ‘ãˆã¦è¡¨ç¤ºã™ã‚‹ã“ã¨ã«ã‚ˆã‚ŠJSONを見通ã—よã眺ã‚ã‚‹ã“ã¨ãŒã§ãã¾ã™ã€‚ 背景 JSONã‚’æ•´å½¢ã—ã¦è¡¨ç¤ºã™ã‚‹ã“ã¨ãŒã§ãã‚‹CLIツールã¨ã—ã¦ã€jqã€jsonppや〠python -m json.tool ãªã©ãŒã‚ã‚Šã¾ã™ãŒ(jq ã¯pretty-printã®ãŸã‚ã®ãƒ„ールã§ã¯ãªã„ãŒåƒ•ã¯æ™®æ®µjsonã®æ•´å½¢ã®ãŸã‚ã«ã‚ˆãjqを使ã£ã¦ã„ãŸ)〠ã“れらã®æ—¢å˜ã®JSON pretty-printerを用ã„ã¦ã€å…ˆã«è¿°ã¹ãŸã‚ˆã†ãªè¦ç´ æ•°ã®
flori/json ã®ã‚³ãƒŸãƒƒãƒˆæ¨©ã‚’手ã«å…¥ã‚ŒãŸ - HsbtDiary(2018-10-22)
â– flori/json ã®ã‚³ãƒŸãƒƒãƒˆæ¨©ã‚’手ã«å…¥ã‚ŒãŸ rbenv/ruby-build ã« ruby ã® json ライブラリã®ä½œè€…ã® flori ãŒã‚³ãƒ¡ãƒ³ãƒˆã—ã¦ã„ã¦ã€ã€Œãã†ã„ãˆã° json ã®ä»¶ç¢ºèªã—ã¦ãれる?ã€ã¨æˆç€¬ã•ã‚“ãŒç¢ºèªã—ãŸã‚‰ã‚ã§ãŸãã€hsbt 㨠nalsh ã•ã‚“ã®äºŒäººãŒã‚³ãƒŸãƒƒãƒˆã§ãるよã†ã«ãªã£ãŸã€‚ 主㫠Ruby 本体ã§ã ã‘変更ã•ã‚Œã¦ã„るパッãƒã‚’ã›ã£ã›ã¨ flori/json ã®ãƒãƒƒã‚¯ãƒãƒ¼ãƒˆã—ãŸã‚Šã€ã“ã‚Œã¯ãƒžãƒ¼ã‚¸ã—ãŸã»ã†ãŒè‰¯ã•ãã†ã€ã¨ã„ã†ã‚ˆã†ãª pull-request ã®å¯¾å¿œã‚’ã™ã‚‹ã£ã¦æ„Ÿã˜ã®äºˆå®šã§ã™ã€‚é ‘å¼µã‚‹ãžãƒ¼ã€‚
SION, a data serialization format a little more expressive than JSON - Qiita
[ "array" : [ nil, true, 1, // Int in decimal 1.0, // Double in decimal "one", [1], ["one" : 1.0] ], "bool" : true, "data" : .Data("R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7"), "date" : .Date(0x0p+0), "dictionary" : [ "array" : [], "bool" : false, "double" : 0x0p+0, "int" : 0, "nil" : nil, "object" : [:], "string" : "" ], "double" : 0x1.518f5c28f5c29p+5, // Double in hexadecimal "in
GitHub - tomnomnom/gron: Make JSON greppable!
Make JSON greppable! gron transforms JSON into discrete assignments to make it easier to grep for what you want and see the absolute 'path' to it. It eases the exploration of APIs that return large blobs of JSON but have terrible documentation. â–¶ gron "https://api.github.com/repos/tomnomnom/gron/commits?per_page=1" | fgrep "commit.author" json[0].commit.author = {}; json[0].commit.author.date = "2
jq コマンドを使ã†æ—¥å¸¸ã®ã”紹介 - Qiita
jq コマンドã¨ã¯ http://stedolan.github.io/jq/ JSONã‹ã‚‰ç°¡å˜ã«å€¤ã‚’抜ã出ã—ãŸã‚Šã€é›†è¨ˆã—ãŸã‚Šã€æ•´å½¢ã—ã¦è¡¨ç¤ºã—ãŸã‚Šã§ãã‚‹JSON用ã®grepã¨ã‹awkã¿ãŸã„ãªã‚³ãƒžãƒ³ãƒ‰ã§ã™ã€‚ WebサービスãŒJSONã‚’åã„ãŸã‚Šã€AWS CLI㌠JSON ã‚’åã„ãŸã‚Šã™ã‚‹ç¾ä»£ç¤¾ä¼šã§å¤§å¤‰ä¾¿åˆ©ãªã‚³ãƒžãƒ³ãƒ‰ã§ã™ã€‚ マニュアル ã ã„ãŸã„ã“ã“èªã‚ã°OK. http://stedolan.github.io/jq/manual/ ã‚ã€ã“ã‚Œã§ã€çµ‚ã‚ã£ã¦ã—ã¾ã†ã€‚ã ã‘ã©æ°—ã«ã›ãšé€²ã‚ã¾ã™ã€‚ ç°¡å˜ãªä¾‹ ã¾ãšã€ç©ºæ°—ã‚’ã¤ã‹ã¿ã¾ã—ょã†ã€‚ 以下jqコマンドã®è¨˜æ³•ã‚’見ã¦ã„ãã¾ã™ã€‚JSON { "hoge": "value" } ãŒã‚ã£ãŸå ´åˆã€ . ãŒãƒ«ãƒ¼ãƒˆ {} を表ã—ã¾ã™ã€‚.hoge 㧠"value" を表ç¾ã—ã¾ã™ã€‚ã ã„ãŸã„ã“ã‚“ãªæ„Ÿã˜ã§ã™ã€‚ ãŸã ã®æ•´å½¢ ã—ã°ã‚‰ã下記ã®JSONを例ã«é€²ã‚ã¾ã™ã€‚itemsã«ã¯é…
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JSON Crack | Transform your data into interactive graphs
Projects by Paul Julius Martinez
benchmarking JSON Parsers (OJ, SimdJson, FastJsonParser)
GitHub - antonmedv/fx: Terminal JSON viewer & processor
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