{"id":23432,"date":"2019-09-30T12:00:55","date_gmt":"2019-09-30T03:00:55","guid":{"rendered":"https:\/\/www.techscore.com\/blog\/?p=23432"},"modified":"2020-04-23T18:39:41","modified_gmt":"2020-04-23T09:39:41","slug":"jq-%e3%81%a8-jmespath-%e3%82%92%e5%90%8c%e6%99%82%e3%81%ab%e8%a6%9a%e3%81%88%e3%82%8b","status":"publish","type":"post","link":"https:\/\/www.techscore.com\/blog\/2019\/09\/30\/jq-%e3%81%a8-jmespath-%e3%82%92%e5%90%8c%e6%99%82%e3%81%ab%e8%a6%9a%e3%81%88%e3%82%8b\/","title":{"rendered":"jq \u3068 JMESPath \u3092\u540c\u6642\u306b\u899a\u3048\u308b"},"content":{"rendered":"<h2>\u306f\u3058\u3081\u306b<\/h2>\n<p>\u3054\u7121\u6c99\u6c70\u3057\u3066\u304a\u308a\u307e\u3059\u3002\u7530\u4e2d\u3067\u3059\u3002\u4eca\u56de\u306f jq \u3068 JMESpath \u306b\u3064\u3044\u3066\u66f8\u304d\u307e\u3059\u3002<\/p>\n<p>AWS CLI \u306e\u8fd4\u308a\u5024\u306e JSON \u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b --query \u30aa\u30d7\u30b7\u30e7\u30f3\u306b JMESPath \u3092\u6307\u5b9a\u3057\u3066\u51e6\u7406\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"font-size:14 line-height:18 lang:sh decode:true\"># \u540d\u524d\u304c test- \u3067\u59cb\u307e\u308b\u6700\u65b0\u306e AMI \u306e id \u3092\u53d6\u5f97\n$ aws ec2 describe-images \\\n  --filters Name=state,Values=available Name=is-public,Values=false \\\n  --query \"Images[?starts_with(Name, 'test-')]\n           | sort_by(@, &amp;CreationDate) | reverse(@)[0].ImageId\"\n\n\"ami-xxxxxxxxxxxxxxxxx\"\n<\/pre>\n<p>\u3067\u3059\u304c\u3001JMESPath \u306f jq \u306e\u69cb\u6587\u3068\u4f3c\u3066\u3044\u3066\u6df7\u4e71\u3059\u308b\u3057\u3001\u308f\u3056\u308f\u3056\u899a\u3048\u308b\u306e\u3082\u9762\u5012\u306a\u306e\u3067\u3001jq \u30b3\u30de\u30f3\u30c9\u3055\u3048\u899a\u3048\u3066\u304a\u3051\u3070\u305d\u308c\u3067\u3044\u3044\u3001\u3068\u601d\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n<pre class=\"font-size:14 line-height:18 lang:sh decode:true\"># jq \u3067\u51e6\u7406\n$ aws ec2 describe-images \\\n  --filters Name=state,Values=available Name=is-public,Values=false \\\n  | jq '[.Images[] | select(.Name | startswith(\"test-\"))]\n        | sort_by(.CreationDate) | reverse[0].ImageId'\n\n\"ami-xxxxxxxxxxxxxxxxx\"\n<\/pre>\n<p>\u3057\u304b\u3057\u3001\u4ee5\u524d\u306b\u3001\u4f5c\u696d\u4e2d\u306e\u30b5\u30fc\u30d0\u306b jq \u304c\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u3066\u3044\u306a\u304f\u3066\u56f0\u308b\u3001\u3068\u3044\u3046\u3053\u3068\u304c\u3042\u308a\u307e\u3057\u305f\u3002\u305d\u3082\u305d\u3082 JMESPath \u3067\u6307\u5b9a\u3067\u304d\u308b\u306e\u306b\u3001\u308f\u3056\u308f\u3056 jq \u3092\u4f7f\u3046\u3068\u3044\u3046\u306e\u3082\u4f55\u304b\u8ca0\u3051\u305f\u6c17\u304c\u3059\u308b\u3057\u3001\u305d\u3046\u3044\u3048\u3070 jq \u81ea\u4f53\u3082\u304d\u3061\u3093\u3068\u7406\u89e3\u3057\u3066\u4f7f\u3063\u3066\u3044\u308b\u308f\u3051\u3067\u306f\u306a\u304b\u3063\u305f\u306e\u3067\u3001\u3053\u306e\u969b\u3001\u4e21\u8005\u3092\u540c\u6642\u306b\u6b63\u3057\u304f\u899a\u3048\u3066\u304a\u3053\u3046\u3068\u601d\u3044\u307e\u3057\u305f\u3002<\/p>\n<p>\u5c1a\u3001\u4ee5\u4e0b\u306e jq \/ JMESPath \u306f\u3001\u305d\u308c\u305e\u308c\u306e\u516c\u5f0f\u30da\u30fc\u30b8\u306e playground \u3067\u78ba\u8a8d\u3057\u307e\u3057\u305f\u3002<\/p>\n<ul>\n<li><a href=\"https:\/\/stedolan.github.io\/jq\/\">jq<\/a>\u00a0\u00a0(playground \u306f \"Try online!\" \u304b\u3089)<\/li>\n<li><a href=\"http:\/\/jmespath.org\/\" target=\"_blank\" rel=\"noopener noreferrer\">JMESPath<\/a><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h2>\u73fe\u5728\u306e\u5024\u3092\u305d\u306e\u307e\u307e\u8fd4\u3059<\/h2>\n<pre class=\"font-size:14 line-height:18 lang:default decode:true\"> \u5165\u529b : {\"foo\": \"bar\"}\n \u51fa\u529b : {\"foo\": \"bar\"}\n\n   jq : .\n JMES : @\n\n\u610f\u5473\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u3053\u3046\u3057\u3066\u3082\u540c\u3058\u3067\u3059 ( | \u306f \u5de6\u306e\u51fa\u529b\u3092\u53f3\u306e\u5165\u529b\u306b\u3059\u308b)\n   jq : . | . | . | . | .\n JMES : @ | @ | @ | @ | @\n<\/pre>\n<p>. \/ @ \u306f\u3001| \u3084\u95a2\u6570\u306b\u5024\u3092\u6e21\u3059\u3068\u304d\u306b\u3001\u73fe\u5728\u51e6\u7406\u3057\u3066\u3044\u308b\u5024\u3092\u8868\u3057\u307e\u3059\u3002<\/p>\n<h2>\u914d\u5217\/\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u8981\u7d20\u3092\u53d6\u5f97<\/h2>\n<pre class=\"font-size:14 line-height:18 lang:default decode:true\">\u25c6 \u914d\u5217\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u6307\u5b9a\u3057\u3066\u5024\u3092\u53d6\u5f97\n \u5165\u529b : [\"a0\", \"a1\"]\n \u51fa\u529b : \"a1\"\n\n   jq : .[1]\n JMES : [1]\n\n\n\u25c6 \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30ad\u30fc\u3092\u6307\u5b9a\u3057\u3066\u5024\u3092\u53d6\u5f97\n \u5165\u529b : {\"x\": \"X\", \"y\": \"Y\"}\n \u51fa\u529b : \"Y\"\n\n   jq : .y\n JMES : y\n<\/pre>\n<p>jq \u3067\u306f . \u304c\u5fc5\u8981\u3067\u3059\u3002JMESPath \u3067\u306f @[1], @.y \u3068\u3059\u308b\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u30cd\u30b9\u30c8\u3057\u305f\u914d\u5217\/\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304b\u3089\u5024\u3092\u53d6\u5f97\u3059\u308b\u5834\u5408\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"font-size:14 line-height:18 lang:default decode:true\">\u25c6 \u30cd\u30b9\u30c8\u3057\u305f\u914d\u5217\n \u5165\u529b : [[\"a0\", \"a1\", \"a2\"], [\"b0\", \"b1\", \"b2\"]]\n \u51fa\u529b : \"b2\"\n\n   jq : .[1][2]\n JMES : [1][2]\n\n\n\u25c6 \u30cd\u30b9\u30c8\u3057\u305f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\n \u5165\u529b : {\"foo\": {\"x\": \"X\", \"y\": \"Y\"}}\n \u51fa\u529b : \"Y\"\n\n   jq : .foo.y\n JMES : foo.y\n<\/pre>\n<p>\u53d6\u5f97\u3057\u305f\u5024\u3092\u4f7f\u7528\u3057\u3066\u65b0\u305f\u306b\u914d\u5217\/\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"font-size:14 line-height:18 lang:default decode:true\">\u25c6 \u914d\u5217\u3092\u4f5c\u6210\n \u5165\u529b : {\"x\": 10, \"y\": 20}\n \u51fa\u529b : [10, 20, 30]\n\n   jq : [.x, .y, 30]\n JMES : [x, y, `30`]\n\n\n \u5165\u529b : {\"foo\": {\"x\": 10, \"y\": 20}}\n \u51fa\u529b : [10, 20, 30]\n\n   jq : [.foo.x, .foo.y, 30]\n JMES : foo.[x, y, `30`]  \u53c8\u306f  [foo.x, foo.y, `30`]\n\n\n\u25c6 \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\n \u5165\u529b : [\"X\", \"Y\"]\n \u51fa\u529b : {\"x\": \"X\", \"y\": \"Y\", \"z\": \"Z\"}\n\n   jq : {x: .[0], y: .[1], z: \"Z\"}\n JMES : {x: [0], y: [1], z: 'Z'}\n\n\n \u5165\u529b : [0, [\"X\", \"Y\"]]\n \u51fa\u529b : {\"x\": \"X\", \"y\": \"Y\", \"z\": \"Z\"}\n\n   jq : {x: .[1][0], y: .[1][1], z: \"Z\"}\n JMES : [1].{x: [0], y: [1], z: 'Z'}  \u53c8\u306f {x: [1][0], y: [1][1], z: 'Z'}\n<\/pre>\n<p>JMESPath \u306e\u5f15\u7528\u7b26\u304c\u3001\u5c11\u3057\u8907\u96d1\u3067\u3059\u3002JMESPath \u3067\u306f\u3001JSON \u3068\u3057\u3066\u8a55\u4fa1\u3055\u308c\u308b\u5024\u3092\u76f4\u63a5\u66f8\u304f\u5834\u5408\u3001&#x60; (back quote) \u3067\u56f2\u3080\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3088\u3063\u3066\u3001\u6570\u5024\u306f &#x60;30&#x60; \u306e\u3088\u3046\u306b\u66f8\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u6587\u5b57\u5217\u306f &#x60;\"Z\"&#x60; \u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u304c (JSON \u306e\u6587\u5b57\u5217\u306f \" (double quote) \u3067\u56f2\u3080\u306e\u3067) \u3001 \u3053\u308c\u3068\u306f\u5225\u306b\u6587\u5b57\u5217\u30ea\u30c6\u30e9\u30eb\u3092\u8868\u3059 ' (single quote) \u304c\u3042\u308a\u3001'Z' \u3068\u66f8\u304f\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<br \/>\n(\u305f\u3060\u3001&#x60;Z&#x60; \u3068\u66f8\u3044\u3066\u3082\u52d5\u4f5c\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u3069\u3046\u89e3\u91c8\u3059\u308c\u3070\u3044\u3044\u3067\u3057\u3087\u3046......)<br \/>\n&nbsp;<\/p>\n<h2>\u914d\u5217\u306e map \u51e6\u7406<\/h2>\n<h3>\u25cf jq \u306e [] \u3068 JMESPath \u306e [*]<\/h3>\n<pre class=\"font-size:14 line-height:18 lang:default decode:true\">\u25c6 \u914d\u5217\u306e\u914d\u5217\n \u5165\u529b : [[0, 1], [2, 3], [4, 5]] \n \u51fa\u529b : [1, 3, 5]\n\n   jq : [.[][1]]\n JMES : [*][1]\n\n\n \u5165\u529b : [0, [[0, 1], [2, 3], [4, 5]]] \n \u51fa\u529b : [1, 3, 5]\n\n   jq : [.[1][][1]]\n JMES : [1][*][1]\n\n\n\u25c6 \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u914d\u5217\n \u5165\u529b : [{\"x\": 0}, {\"x\": 1}, {\"x\": 2}]\n \u51fa\u529b : [0, 1, 2]\n\n   jq : [.[].x]\n JMES : [*].x\n\n\n \u5165\u529b : {\"foo\": [{\"x\": 0}, {\"x\": 1}, {\"x\": 2}]}\n \u51fa\u529b : [0, 1, 2]\n\n   jq : [.foo[].x]\n JMES : foo[*].x\n<\/pre>\n<p>jq \u306e [] \u306f iterator \u3001JMESPath \u306e [*] \u306f projection \u3068\u547c\u3070\u308c\u3001JavaScript \u3067\u8a00\u3048\u3070 map \u95a2\u6570\u306e\u3088\u3046\u306a\u3053\u3068\u3092\u884c\u3044\u307e\u3059\u3002\u3069\u3061\u3089\u3082\u72ec\u7279\u306e\u52d5\u4f5c\u3092\u3057\u3001\u6df7\u4e71\u3057\u304c\u3061\u306a\u306e\u3067\u3001\u5c11\u3057\u8a73\u3057\u304f\u8aac\u660e\u3057\u307e\u3059\u3002<br \/>\n&nbsp;<\/p>\n<h3>\u25cf jq \u306e iterator<\/h3>\n<p>jq \u306e [] \u306f\u3001\u914d\u5217\u3092\u8981\u7d20\u306e\u884c\u306b\u5206\u89e3\u3057\u307e\u3059\u3002\u4e0a\u8a18\u306e\u4e00\u756a\u76ee\u306e\u4f8b\u3067\u306f\u3001\u4ee5\u4e0b\u306e\u9806\u3067\u51e6\u7406\u304c\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<pre class=\"font-size:14 line-height:18 lang:default decode:true\">\u2460 [] \u3067\u884c\u306b\u5206\u89e3\n[0, 1]\n[2, 3]\n[4, 5]\n\n\u2461 [1] \u3067 \u7b2c 2 \u8981\u7d20\u3092\u53d6\u5f97\n1\n3\n5\n\n\u2462 [] \u3067\u56f2\u3063\u3066\u914d\u5217\u306b\u623b\u3059  # \u52ff\u8ad6\u3001\u914d\u5217\u306b\u623b\u3059\u5fc5\u8981\u304c\u306a\u3044\u5834\u5408\u306f\u4e0d\u8981\n[1,\n 3,\n 5]\n<\/pre>\n<p>iterator \u306e\u51e6\u7406\u7d50\u679c\u306f\u8907\u6570\u306e JSON \u306e\u884c\u3067\u3042\u308a\u3001\u914d\u5217\u3067\u306f\u306a\u3044\u306e\u3067\u3001\u914d\u5217\u3068\u8003\u3048\u3066\u8981\u7d20\u3092\u53d6\u5f97\u3057\u3088\u3046\u3068\u3059\u308b\u3068\u30a8\u30e9\u30fc\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"font-size:14 line-height:18 lang:default decode:true\">\u25c6 iterator \u3067\u51e6\u7406\u3057\u305f\u7d50\u679c\u304b\u3089\u8981\u7d20\u3092\u53d6\u5f97\n \u5165\u529b : [{\"x\": 0}, {\"x\": 1}, {\"x\": 2}]\n \u51fa\u529b : 1\n\n\u3010\u8aa4\u3011jq : .[].x[1]    # \u30a8\u30e9\u30fc\u304c\u767a\u751f\n\u3010\u6b63\u3011jq : [.[].x][1]\n\n# \u3082\u3063\u3068\u3082\u3001\u3053\u306e\u4f8b\u3067\u306f\u3001[] \u3092\u4f7f\u308f\u305a\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u66f8\u304f\u306e\u304c\u81ea\u7136\u3067\u3059\u304c\n   jq : .[1].x\n<\/pre>\n<p>&nbsp;<\/p>\n<h3>\u25cf JMESPath \u306e projection<\/h3>\n<p>JMESPath \u306e [*] \u306f\u3001jq \u306e iterator \u306e\u3088\u3046\u306b\u884c\u306b\u5206\u89e3\u3057\u3066\u3044\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001projection \u306e \u7d50\u679c\u304b\u3089\u8981\u7d20\u3092\u53d6\u5f97\u3059\u308b\u3068\u304d\u306f\u3001\u3084\u306f\u308a\u3001\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<pre class=\"font-size:14 line-height:18 lang:default decode:true\">\u25c6 projection \u306e\u7d50\u679c\u304b\u3089\u8981\u7d20\u3092\u53d6\u5f97\n \u5165\u529b : [{\"x\": 0}, {\"x\": 1}, {\"x\": 2}]\n \u51fa\u529b : 1\n\n\u3010\u8aa4\u3011JMES : [*].x[1]     # \u7a7a\u914d\u5217 [] \u304c\u8fd4\u308b\n\u3010\u6b63\u3011JMES : [*].x | [1]\n<\/pre>\n<p>[*].x \u306e\u7d50\u679c\u306f\u3001\u3084\u306f\u308a projection \u306a\u306e\u3067\u3001\u3053\u308c\u306b\u5bfe\u3057 [1] \u3092\u6307\u5b9a\u3059\u308b\u3068\u3001\u5404\u8981\u7d20\u3067\u3042\u308b\u6570\u5024 0, 1, 2 \u306b\u5bfe\u3057\u3066\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u6307\u5b9a\u3057\u3066\u3044\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u914d\u5217\u3067\u306a\u3044\u3082\u306e\u306b\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u6307\u5b9a\u3057\u305f\u5834\u5408\u306f null \u304c\u8fd4\u308a\u3001\u307e\u305f projection \u306b\u304a\u3044\u3066 null \u306f\u7121\u8996\u3055\u308c\u308b\u4ed5\u69d8(\u5f8c\u8ff0)\u306a\u306e\u3067\u3001\u7d50\u679c\u3068\u3057\u3066\u7a7a\u914d\u5217\u304c\u8fd4\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u3088\u3063\u3066\u3001projection \u306e\u7d42\u4e86\u3092\u793a\u3059\u305f\u3081\u306b\u3001\u9593\u306b | \u3092\u631f\u3080\u5fc5\u8981\u304c\u3042\u308b\u3068\u3044\u3046\u308f\u3051\u3067\u3059\u3002<\/p>\n<h3>\u25cf \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u5bfe\u3059\u308b iterator \/ projection<\/h3>\n<p>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u5bfe\u3057\u3066\u3082\u3001 iterator \/ projection \u3092\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u5834\u5408\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u5024\u306e\u914d\u5217\u306b\u5bfe\u3057\u3066\u51e6\u7406\u3055\u308c\u307e\u3059\u3002<\/p>\n<pre class=\"font-size:14 line-height:18 lang:default decode:true\">\u25c6 \u5024\u304c\u914d\u5217\u3067\u3042\u308b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\n \u5165\u529b : {\"x\": [\"a0\", \"a1\"], \"y\": [\"b0\", \"b1\"]}\n \u51fa\u529b : [\"a1\", \"b1\"]\n\n   jq : [.[][1]]\n JMES : *[1]\n\n\n \u5165\u529b : [0, {\"x\": [\"a0\", \"a1\"], \"y\": [\"b0\", \"b1\"]}]\n \u51fa\u529b : [\"a1\", \"b1\"]\n\n   jq : [.[1][][1]]\n JMES : [1].*[1]\n\n\n\u25c6 \u5024\u304c\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3067\u3042\u308b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\n \u5165\u529b : {\"a\": {\"x\": \"X0\"}, \"b\": {\"x\": \"X1\"}}\n \u51fa\u529b : [\"X0\", \"X1\"]\n\n   jq : [.[].x]\n JMES : *.x\n\n\n \u5165\u529b : {\"foo\": {\"a\": {\"x\": \"X0\"}, \"b\": {\"x\": \"X1\"}}}\n \u51fa\u529b : [\"X0\", \"X1\"]\n\n   jq : [.foo[].x]\n JMES : foo.*.x\n<\/pre>\n<p>jq \u3067\u306f\u914d\u5217\u306e\u5834\u5408\u3068\u5168\u304f\u540c\u3058 [] \u3067\u3059\u304c\u3001JMESPath \u3067\u306f [*] \u3067\u306f\u306a\u304f * \u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<br \/>\n&nbsp;<\/p>\n<h3>\u25cf null \u306e\u51e6\u7406<\/h3>\n<p>iterator \/ projection \u3067\u306f\u3001null \u306e\u51e6\u7406\u306b\u9055\u3044\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"font-size:14 line-height:18 lang:default decode:true\"> \u5165\u529b : [{\"x\": \"X0\"}, {\"z\": \"X1\"}, {\"x\": \"X2\"}] \n \u51fa\u529b : jq \u306f [\"X0\", null, \"X2\"]\n \u3000\u3000 JMES \u306f [\"X0\", \"X2\"]\n\n   jq : [.[].x]\n JMES : [*].x\n<\/pre>\n<p>JMESPath \u306e projection \u3067\u306f null \u304c\u7121\u8996\u3055\u308c\u307e\u3059\u3002jq \u3068\u540c\u3058\u7d50\u679c\u306b\u3057\u305f\u3044\u5834\u5408\u306f\u3001\u5f8c\u8ff0\u306e map \u95a2\u6570\u3092\u4f7f\u3044\u307e\u3057\u3087\u3046\u3002<br \/>\n\u307e\u305f\u3001jq \u306e iterator \u306e\u51e6\u7406\u306e\u7d50\u679c\u304b\u3089 null \u3092\u9664\u53bb\u3057\u305f\u3044\u5834\u5408\u306f\u3001null \u3067\u306a\u3044\u5024\u306e\u307f\u3092\u9078\u629e\u3059\u308b\u95a2\u6570 values \u304c\u4f7f\u3048\u307e\u3059\u3002<\/p>\n<pre class=\"font-size:14 line-height:18 lang:default decode:true\"> \u5165\u529b : [{\"x\": \"X0\"}, {\"z\": \"X1\"}, {\"x\": \"X2\"}] \n \u51fa\u529b : [\"X0\", \"X2\"]\n\n   jq : [.[].x | values]\n<\/pre>\n<p>&nbsp;<\/p>\n<h3>\u25cf map \u95a2\u6570<\/h3>\n<pre class=\"font-size:14 line-height:18 lang:default decode:true\"> \u5165\u529b : [{\"x\": 0}, {\"x\": 1}, {\"x\": 2}]\n \u51fa\u529b : [0, 1, 2]\n\n   jq : map(.x)      # [.[] | .x] \u3068\u540c\u3058\n JMES : map(&amp;x, @)   # [*].x \u3068\u540c\u3058 (\u4f46\u3057 projection \u3067\u306f\u306a\u3044)\n<\/pre>\n<p>iterator \/ projection \u3068\u540c\u69d8\u306e\u51e6\u7406\u3092\u3059\u308b\u306e\u306b\u3001map \u95a2\u6570\u3092\u4f7f\u3046\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<br \/>\njq \u3067\u306f\u3001\u73fe\u5728\u5024\u3092\u51e6\u7406\u5bfe\u8c61\u306b\u3059\u308b\u306e\u3067\u3001\u5f15\u6570\u306f\u51e6\u7406\u5185\u5bb9\u306e\u307f\u3067\u3059\u3002JMESPath \u3067\u306f\u3001\u51e6\u7406\u5bfe\u8c61\u306e\u914d\u5217(\u4e0a\u4f8b\u3067\u306f\u73fe\u5728\u5024\u3092\u8868\u3059 @)\u3082\u5f15\u6570\u306b\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n<p>&amp;x \u306e &amp; \u306f\u300cx \u306e\u5024\u3067\u306f\u306a\u304f x \u3068\u3044\u3046 JMESPath \u306e\u69cb\u6587\u3060\u300d\u3068\u3044\u3046\u3053\u3068\u3092\u8868\u3059\u305f\u3081\u306b\u5fc5\u8981\u3068\u3044\u3046\u3053\u3068\u307f\u305f\u3044\u3067\u3059\u304c...... \u307e\u3042\u3001\u3053\u3046\u3044\u3046\u66f8\u304d\u65b9\u3092\u3059\u308b\u3068\u899a\u3048\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u5c1a\u3001JMESPath \u306e map \u306f projection \u3067\u306f\u306a\u3044\u306e\u3067\u3001\u7d50\u679c\u3082\u914d\u5217\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u4ed6\u306e\u95a2\u6570\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u4f7f\u7528\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"font-size:14 line-height:18 lang:default decode:true\"> \u5165\u529b : [\"0\", 1, \"2\"]\n \u51fa\u529b : [0, 1, 2]\n\n   jq : map(tonumber)          # [.[] | tonumber] \u3068\u540c\u3058\n JMES : map(&amp;to_number(@), @)  # [*].to_number(@) \u3068\u540c\u3058 (\u4f46\u3057 projection \u3067\u306f\u306a\u3044)\n<\/pre>\n<p>JMESPath \u306e\u4f8b\u306b\u304a\u3044\u3066\u3001\u53f3\u306e @ \u306f map \u304b\u3089\u898b\u305f\u73fe\u5728\u5024([\"0\", 1, \"2\"])\u3067\u3001\u5de6\u306e @ \u306f to_number \u304b\u3089\u898b\u305f\u73fe\u5728\u5024(\"0\" \u53c8\u306f 1 \u53c8\u306f \"2\")\u3067\u3059\u3002<br \/>\n&nbsp;<\/p>\n<h2>\u7d5e\u308a\u8fbc\u307f<\/h2>\n<pre class=\"font-size:14 line-height:18 lang:default decode:true\">\u25c6 2 \u4ee5\u4e0a\u306e\u8981\u7d20\u3092\u9078\u629e\n \u5165\u529b : [3, 0, 2, 1, 4]\n \u51fa\u529b : [3, 2, 4]\n\n   jq : [.[] | select(. &gt;= 2)]\n JMES : [? @ &gt;= `2`]\n \n \n\u25c6 x \u306e\u5024\u304c \"b\" \u3067\u59cb\u307e\u308b\u8981\u7d20\u3092\u9078\u629e\n \u5165\u529b : [{\"x\": \"foo\"}, {\"x\": \"bar\"}, {\"x\": \"baz\"}]\n \u51fa\u529b : [{\"x\": \"bar\"}, {\"x\": \"baz\"}]\n\n   jq : [.[] | select(.x | startswith(\"b\"))]\n JMES : [?starts_with(x, 'b')]\n<\/pre>\n<p>jq \u306b\u306f\u7279\u5225\u306a\u69cb\u6587\u306f\u306a\u3044\u306e\u3067\u3001select \u95a2\u6570\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<br \/>\nJMESPath \u3067\u306f [? \u771f\u507d\u5024\u3092\u8fd4\u3059\u5f0f] \u3068\u3044\u3046\u69cb\u6587\u3092\u4f7f\u3044\u307e\u3059\u3002\u3053\u308c\u3082 projection \u3067\u3059\u3002[*] \u306e * \u3092\u6761\u4ef6\u5f0f\u3068\u5165\u308c\u66ff\u3048\u305f\u3082\u306e\u3001\u3068\u899a\u3048\u307e\u3057\u3087\u3046\u3002<\/p>\n<h2>\u30bd\u30fc\u30c8<\/h2>\n<pre class=\"font-size:14 line-height:18 lang:default decode:true\">\u25c6 \u6570\u5024\u914d\u5217\u3092\u6607\u9806\u3067\u30bd\u30fc\u30c8\n \u5165\u529b : [2, 0, 1]\n \u51fa\u529b : [0, 1, 2]\n\n   jq : sort\n JMES : sort(@)\n\n\n\u25c6 \u30bd\u30fc\u30c8\u7d50\u679c\u3092\u9006\u9806\u306b\u3059\u308b\n \u5165\u529b : [2, 0, 1]\n \u51fa\u529b : [2, 1, 0]\n\n   jq : sort | reverse\n JMES : reverse(sort(@))  \u53c8\u306f  sort(@) | reverse(@)\n\n\n\u25c6 \u914d\u5217\u8981\u7d20\u3067\u3042\u308b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e y \u306e\u5024\u3067\u30bd\u30fc\u30c8\n \u5165\u529b : [{\"x\": 1, \"y\": 2}, {\"x\": 2, \"y\": 0}, {\"x\": 3, \"y\": 1}]\n \u51fa\u529b : [{\"x\": 2, \"y\": 0}, {\"x\": 3, \"y\": 1}, {\"x\": 1, \"y\": 2}] \n\n   jq : sort_by(.y)\n JMES : sort_by(@, &amp;y)\n\n\n\u25c6 \u914d\u5217\u8981\u7d20\u3067\u3042\u308b\u914d\u5217\u306e\u7b2c 2 \u8981\u7d20\u306e\u5024\u3067\u30bd\u30fc\u30c8\n \u5165\u529b : [[1, 2], [2, 0], [3, 1]]\n \u51fa\u529b : [[2, 0], [3, 1], [1, 2]]\n\n   jq : sort_by(.[1])\n JMES : sort_by(@, &amp;[1])\n<\/pre>\n<p>JMESPath \u306e sort_by \u306e\u5f15\u6570\u306e\u4f4d\u7f6e\u3001map \u3068\u9006\u3067\u3059\u306d\u3002\u4f55\u6545\u3067\u3057\u3087\u3046......<br \/>\n&nbsp;<\/p>\n<h2>flatten<\/h2>\n<pre class=\"font-size:14 line-height:18 lang:default decode:true\">\u25c6 \u6df1\u3055 1 \u307e\u3067 flatten\n \u5165\u529b : [0, [1], [[2]]]\n \u51fa\u529b : [0, 1, [2]]\n\n   jq : flatten(1)\n JMES : []\n\n\n\u25c6 \u5168\u3066 flatten\n \u5165\u529b : [0, [1], [[2]]]\n \u51fa\u529b : [0, 1, 2]\n\n   jq : flatten\n JMES : [][]  # \u6df1\u3055\u306b\u5408\u308f\u305b\u3066 [] \u3092\u5897\u3084\u3059\n<\/pre>\n<p>JMESPath \u306e [] \u306f\u3001\u3053\u308c\u3082 projection \u3067\u3059\u3002[*] \u306e * \u304c\u306a\u304f\u306a\u3063\u305f\u3082\u306e\u3001\u3068\u899a\u3048\u307e\u3057\u3087\u3046\u3002jq \u306e iterator \u3068\u6df7\u540c\u3057\u306a\u3044\u3088\u3046\u306b\u6ce8\u610f\u3057\u3066\u4e0b\u3055\u3044\u3002\u4efb\u610f\u306e\u6df1\u3055\u307e\u3067\u5168\u3066 flatten \u3059\u308b\u65b9\u6cd5\u306f\u306a\u3044\u3088\u3046\u306a\u306e\u3067\u3001\u6df1\u3055\u304c\u5206\u304b\u3089\u306a\u3044\u3068\u304d\u306f [][][][][][][][][][] \u3050\u3089\u3044\u306b\u3057\u3066\u304a\u3051\u3070......<br \/>\n&nbsp;<\/p>\n<h2>\u30b9\u30e9\u30a4\u30b9<\/h2>\n<pre class=\"font-size:14 line-height:18 lang:default decode:true\">\u25c6 \u59cb\u70b9\u3068\u7d42\u70b9\u3092\u6307\u5b9a\n \u5165\u529b : [\"a\", \"b\", \"c\", \"d\", \"e\", \"f\"]\n \u51fa\u529b : [\"b\", \"c\"]\n\n   jq : .[1:3]\n JMES : [1:3]\n\n\n\u25c6 \u7d42\u70b9\u3092\u7701\u7565\n \u5165\u529b : [\"a\", \"b\", \"c\", \"d\", \"e\", \"f\"]\n \u51fa\u529b : [\"d\", \"e\", \"f\"]\n\n   jq : .[3:]\n JMES : [3:]\n\n\n\u25c6 \u59cb\u70b9\u3092\u7701\u7565\n \u5165\u529b : [\"a\", \"b\", \"c\", \"d\", \"e\", \"f\"]\n \u51fa\u529b : [\"a\", \"b\", \"c\"]\n\n   jq : .[:3]\n JMES : [:3]\n\n\n\u25c6 \u8ca0\u5024\u3092\u6307\u5b9a\n \u5165\u529b : [\"a\", \"b\", \"c\", \"d\", \"e\", \"f\"]\n \u51fa\u529b : [\"d\", \"e\"]\n\n   jq : .[-3:-1]\n JMES : [-3:-1]\n\n\n\u25c6 \u5897\u5206\u5024\u3092\u6307\u5b9a  # JMESPath \u306e\u307f\n \u5165\u529b : [\"a\", \"b\", \"c\", \"d\", \"e\", \"f\"]\n \u51fa\u529b : [\"b\", \"d\"]\n\n JMES : [1:4:2]\n\n\n\u25c6 \u5897\u5206\u5024\u306b\u8ca0\u5024\u3092\u6307\u5b9a  # JMESPath \u306e\u307f\n \u5165\u529b : [\"a\", \"b\", \"c\", \"d\", \"e\", \"f\"]\n \u51fa\u529b : [\"e\", \"c\"]\n\n JMES : [-2:-5:-2]\n<\/pre>\n<p>\u30b9\u30e9\u30a4\u30b9\u306e\u4f7f\u3044\u65b9\u306f\u3001jq \u3068 JMESPath \u3067\u6b86\u3069\u540c\u3058\u3067\u3059\u304c\u3001\u5897\u5206\u5024\u3092\u6307\u5b9a\u3067\u304d\u308b\u306e\u306f JMESPath \u306e\u307f\u3067\u3059\u3002JMESPath \u306e\u30b9\u30e9\u30a4\u30b9\u306f\u3001\u3053\u308c\u3082 projection \u3067\u3059\u3002<br \/>\n&nbsp;<\/p>\n<h2>join<\/h2>\n<pre class=\"font-size:14 line-height:18 lang:default decode:true\"> \u5165\u529b : [\"x\", \"y\", \"z\"]\n \u51fa\u529b : \"x,y,z\"\n\n   jq : join(\",\")\n JMES : join(',', @)\n<\/pre>\n<p>&nbsp;<\/p>\n<h2>\u6700\u5f8c\u306b<\/h2>\n<p>\u3069\u3061\u3089\u306e\u69cb\u6587\u3082\u4e00\u9577\u4e00\u77ed\u306a\u6c17\u304c\u3057\u307e\u3059\u3002\u305f\u3060\u3001jq \u306e\u65b9\u304c\u6a5f\u80fd\u304c\u591a\u3044\u3067\u3059\u3002JMESPath \u3067\u306f\u3001\u4f8b\u3048\u3070\u4ee5\u4e0b\u306e\u3053\u3068\u304c\u3067\u304d\u306a\u3044\u3088\u3046\u3067\u3059\u3002<br \/>\n\u203b \u7b46\u8005\u306e\u7406\u89e3\u4e0d\u8db3\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u65b9\u6cd5\u3092\u3054\u5b58\u3058\u306e\u65b9\u306f\u3001\u3054\u6559\u6388\u4e0b\u3055\u3044\u3002<\/p>\n<pre class=\"font-size:14 line-height:18 lang:default decode:true\">\u25c6 \u6570\u5024\u8a08\u7b97\u3059\u308b\n \u5165\u529b : [0, 1, 2]\n \u51fa\u529b : [0, 2, 4]\n\n   jq : [.[] | . * 2]\n\n\n\u25c6 \u6587\u5b57\u5217\u3092\u5207\u308a\u53d6\u308b\n \u5165\u529b : [\"abc\", \"xyz\"]\n \u51fa\u529b : [\"b\", \"y\"]\n\n   jq : [.[][1:2]]\n\n\n\u25c6 \u51fa\u529b\u5024\u3092\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30ad\u30fc\u306b\u3059\u308b\n \u5165\u529b : [\"a\", \"x\"]\n \u51fa\u529b : {\"x\": \"a\"}\n\n   jq : {(.[1]): .[0]}\n<\/pre>\n<p>\u3068\u306b\u304b\u304f\u3001\u3053\u3053\u306b\u66f8\u3044\u305f\u3053\u3068\u3050\u3089\u3044\u3092\u899a\u3048\u3066\u304a\u3051\u3070\u3001\u4e00\u756a\u59cb\u3081\u306b\u6319\u3052\u305f AWS CLI \u306e\u4f8b\u3050\u3089\u3044\u306e\u3053\u3068\u306f\u3067\u304d\u308b\u306e\u3067\u3001\u3068\u308a\u3042\u3048\u305a\u5341\u5206\u3067\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u304c\u7686\u69d8\u306e\u65e5\u3005\u306e\u4f5c\u696d\u306e\u4e00\u52a9\u3068\u306a\u308c\u3070\u5e78\u3044\u3067\u3059\u3002<\/p>\n<p>\u5c1a\u3001\u672c\u8a18\u4e8b\u306e\u57f7\u7b46\u306b\u3042\u305f\u308a\u3001\u4e0a\u63b2\u306e\u516c\u5f0f\u30b5\u30a4\u30c8\u3092\u53c2\u8003\u306b\u3055\u305b\u3066\u9802\u304d\u307e\u3057\u305f\u3002<br \/>\n&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u306f\u3058\u3081\u306b<\/p>\n<p>\u3054\u7121\u6c99\u6c70\u3057\u3066\u304a\u308a\u307e\u3059\u3002\u7530\u4e2d\u3067\u3059\u3002\u4eca\u56de\u306f jq \u3068 JMESpath \u306b\u3064\u3044\u3066\u66f8\u304d\u307e\u3059\u3002<\/p>\n<p>AWS CLI \u306e\u8fd4\u308a\u5024\u306e JSON \u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b --query \u30aa\u30d7\u30b7\u30e7\u30f3\u306b JMESPath \u3092\u6307\u5b9a\u3057\u3066\u51e6\u7406\u3067\u304d\u307e\u3059\u3002<br \/><a href=\"https:\/\/www.techscore.com\/blog\/2019\/09\/30\/jq-%e3%81%a8-jmespath-%e3%82%92%e5%90%8c%e6%99%82%e3%81%ab%e8%a6%9a%e3%81%88%e3%82%8b\/\">\u7d9a\u304d\u3092\u8aad\u3080...<\/a><\/p>\n","protected":false},"author":37,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[18],"tags":[],"_links":{"self":[{"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/posts\/23432"}],"collection":[{"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/users\/37"}],"replies":[{"embeddable":true,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/comments?post=23432"}],"version-history":[{"count":186,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/posts\/23432\/revisions"}],"predecessor-version":[{"id":25446,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/posts\/23432\/revisions\/25446"}],"wp:attachment":[{"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/media?parent=23432"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/categories?post=23432"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/tags?post=23432"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}