{"id":155399,"date":"2020-08-30T13:16:30","date_gmt":"2020-08-30T05:16:30","guid":{"rendered":"http:\/\/4563.org\/?p=155399"},"modified":"2020-08-30T13:16:30","modified_gmt":"2020-08-30T05:16:30","slug":"%e9%80%9a%e8%bf%87-mapreduce-%e9%99%8d%e4%bd%8e%e6%9c%8d%e5%8a%a1%e5%93%8d%e5%ba%94%e6%97%b6%e9%97%b4","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=155399","title":{"rendered":"\u901a\u8fc7 MapReduce \u964d\u4f4e\u670d\u52a1\u54cd\u5e94\u65f6\u95f4"},"content":{"rendered":"<div>\n<div>\n<div>\n<h1>                  \u901a\u8fc7 MapReduce \u964d\u4f4e\u670d\u52a1\u54cd\u5e94\u65f6\u95f4               <\/h1>\n<p> <\/p>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : kevinwan <\/span>  <span><i><\/i> 6<\/span> <\/div>\n<div> <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<div isfirst=\"1\"> <\/p>\n<h1>\u901a\u8fc7 MapReduce \u964d\u4f4e\u670d\u52a1\u54cd\u5e94\u65f6\u95f4<\/h1>\n<p> <\/p>\n<p>\u5728\u5fae\u670d\u52a1\u4e2d\u5f00\u53d1\u4e2d\uff0capi \u7f51\u5173\u626e\u6f14\u5bf9\u5916\u63d0\u4f9b restful api \u7684\u89d2\u8272\uff0c\u800c api \u7684\u6570\u636e\u5f80\u5f80\u4f1a\u4f9d\u8d56\u5176\u4ed6\u670d\u52a1\uff0c\u590d\u6742\u7684 api \u66f4\u662f\u4f1a\u4f9d\u8d56\u591a\u4e2a\u751a\u81f3\u6570\u5341\u4e2a\u670d\u52a1\u3002\u867d\u7136\u5355\u4e2a\u88ab\u4f9d\u8d56\u670d\u52a1\u7684\u8017\u65f6\u4e00\u822c\u90fd\u6bd4\u8f83\u4f4e\uff0c\u4f46\u5982\u679c\u591a\u4e2a\u670d\u52a1\u4e32\u884c\u4f9d\u8d56\u7684\u8bdd\u90a3\u4e48\u6574\u4e2a api \u7684\u8017\u65f6\u5c06\u4f1a\u5927\u5927\u589e\u52a0\u3002<\/p>\n<p>\u90a3\u4e48\u901a\u8fc7\u4ec0\u4e48\u624b\u6bb5\u6765\u4f18\u5316\u5462\uff1f\u6211\u4eec\u9996\u5148\u60f3\u5230\u7684\u662f\u901a\u8fc7\u5e76\u53d1\u6765\u7684\u65b9\u5f0f\u6765\u5904\u7406\u4f9d\u8d56\uff0c\u8fd9\u6837\u5c31\u80fd\u964d\u4f4e\u6574\u4e2a\u4f9d\u8d56\u7684\u8017\u65f6\uff0cGo \u57fa\u7840\u5e93\u4e2d\u4e3a\u6211\u4eec\u63d0\u4f9b\u4e86 WaitGroup \u5de5\u5177\u7528\u6765\u8fdb\u884c\u5e76\u53d1\u63a7\u5236\uff0c\u4f46\u5b9e\u9645\u4e1a\u52a1\u573a\u666f\u4e2d\u591a\u4e2a\u4f9d\u8d56\u5982\u679c\u6709\u4e00\u4e2a\u51fa\u9519\u6211\u4eec\u671f\u671b\u80fd\u7acb\u5373\u8fd4\u56de\u800c\u4e0d\u662f\u7b49\u6240\u6709\u4f9d\u8d56\u90fd\u6267\u884c\u5b8c\u518d\u8fd4\u56de\u7ed3\u679c\uff0c\u800c\u4e14 WaitGroup \u4e2d\u5bf9\u53d8\u91cf\u7684\u8d4b\u503c\u5f80\u5f80\u9700\u8981\u52a0\u9501\uff0c\u6bcf\u4e2a\u4f9d\u8d56\u51fd\u6570\u90fd\u9700\u8981\u6dfb\u52a0 Add \u548c Done \u5bf9\u4e8e\u65b0\u624b\u6765\u8bf4\u6bd4\u8f83\u5bb9\u6613\u51fa\u9519<\/p>\n<p>\u57fa\u4e8e\u4ee5\u4e0a\u7684\u80cc\u666f\uff0cgo-zero \u6846\u67b6\u4e2d\u4e3a\u6211\u4eec\u63d0\u4f9b\u4e86\u5e76\u53d1\u5904\u7406\u5de5\u5177MapReduce\uff0c\u8be5\u5de5\u5177\u5f00\u7bb1\u5373\u7528\uff0c\u4e0d\u9700\u8981\u505a\u4ec0\u4e48\u521d\u59cb\u5316\uff0c\u6211\u4eec\u901a\u8fc7\u4e0b\u56fe\u770b\u4e0b\u4f7f\u7528 MapReduce \u548c\u6ca1\u4f7f\u7528\u7684\u8017\u65f6\u5bf9\u6bd4:<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/4563.org\/wp-content\/uploads\/2020\/09\/20200917_5f63540eb492e.png\" alt=\"\u901a\u8fc7 MapReduce \u964d\u4f4e\u670d\u52a1\u54cd\u5e94\u65f6\u95f4\" \/><\/p>\n<p>\u76f8\u540c\u7684\u4f9d\u8d56\uff0c\u4e32\u884c\u5904\u7406\u7684\u8bdd\u9700\u8981 200ms\uff0c\u4f7f\u7528 MapReduce \u540e\u7684\u8017\u65f6\u7b49\u4e8e\u6240\u6709\u4f9d\u8d56\u4e2d\u6700\u5927\u7684\u8017\u65f6\u4e3a 100ms\uff0c\u53ef\u89c1 MapReduce \u53ef\u4ee5\u5927\u5927\u964d\u4f4e\u670d\u52a1\u8017\u65f6\uff0c\u800c\u4e14\u968f\u7740\u4f9d\u8d56\u7684\u589e\u52a0\u6548\u679c\u5c31\u4f1a\u8d8a\u660e\u663e\uff0c\u51cf\u5c11\u5904\u7406\u8017\u65f6\u7684\u540c\u65f6\u5e76\u4e0d\u4f1a\u589e\u52a0\u670d\u52a1\u5668\u538b\u529b<\/p>\n<h2>\u5e76\u53d1\u5904\u7406\u5de5\u5177MapReduce<\/h2>\n<p>MapReduce\u662f Google \u63d0\u51fa\u7684\u4e00\u4e2a\u8f6f\u4ef6\u67b6\u6784\uff0c\u7528\u4e8e\u5927\u89c4\u6a21\u6570\u636e\u96c6\u7684\u5e76\u884c\u8fd0\u7b97\uff0cgo-zero \u4e2d\u7684 MapReduce \u5de5\u5177\u6b63\u662f\u501f\u9274\u4e86\u8fd9\u79cd\u67b6\u6784\u601d\u60f3<\/p>\n<p>go-zero \u6846\u67b6\u4e2d\u7684 MapReduce \u5de5\u5177\u4e3b\u8981\u7528\u6765\u5bf9\u6279\u91cf\u6570\u636e\u8fdb\u884c\u5e76\u53d1\u7684\u5904\u7406\uff0c\u4ee5\u6b64\u6765\u63d0\u5347\u670d\u52a1\u7684\u6027\u80fd<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/4563.org\/wp-content\/uploads\/2020\/09\/20200917_5f63541590ee6.png\" alt=\"\u901a\u8fc7 MapReduce \u964d\u4f4e\u670d\u52a1\u54cd\u5e94\u65f6\u95f4\" \/><\/p>\n<p>\u6211\u4eec\u901a\u8fc7\u51e0\u4e2a\u793a\u4f8b\u6765\u6f14\u793a MapReduce \u7684\u7528\u6cd5<\/p>\n<p>MapReduce \u4e3b\u8981\u6709\u4e09\u4e2a\u53c2\u6570\uff0c\u7b2c\u4e00\u4e2a\u53c2\u6570\u4e3a generate \u7528\u4ee5\u751f\u4ea7\u6570\u636e\uff0c\u7b2c\u4e8c\u4e2a\u53c2\u6570\u4e3a mapper \u7528\u4ee5\u5bf9\u6570\u636e\u8fdb\u884c\u5904\u7406\uff0c\u7b2c\u4e09\u4e2a\u53c2\u6570\u4e3a reducer \u7528\u4ee5\u5bf9 mapper \u540e\u7684\u6570\u636e\u505a\u805a\u5408\u8fd4\u56de\uff0c\u8fd8\u53ef\u4ee5\u901a\u8fc7 opts \u9009\u9879\u8bbe\u7f6e\u5e76\u53d1\u5904\u7406\u7684\u7ebf\u7a0b\u6570\u91cf<\/p>\n<p>\u573a\u666f\u4e00: \u67d0\u4e9b\u529f\u80fd\u7684\u7ed3\u679c\u5f80\u5f80\u9700\u8981\u4f9d\u8d56\u591a\u4e2a\u670d\u52a1\uff0c\u6bd4\u5982\u5546\u54c1\u8be6\u60c5\u7684\u7ed3\u679c\u5f80\u5f80\u4f1a\u4f9d\u8d56\u7528\u6237\u670d\u52a1\u3001\u5e93\u5b58\u670d\u52a1\u3001\u8ba2\u5355\u670d\u52a1\u7b49\u7b49\uff0c\u4e00\u822c\u88ab\u4f9d\u8d56\u7684\u670d\u52a1\u90fd\u662f\u4ee5 rpc \u7684\u5f62\u5f0f\u5bf9\u5916\u63d0\u4f9b\uff0c\u4e3a\u4e86\u964d\u4f4e\u4f9d\u8d56\u7684\u8017\u65f6\u6211\u4eec\u5f80\u5f80\u9700\u8981\u5bf9\u4f9d\u8d56\u505a\u5e76\u884c\u5904\u7406<\/p>\n<pre><code>func productDetail(uid, pid int64) (*ProductDetail, error) {  var pd ProductDetail  err := mr.Finish(func() (err error) {   pd.User, err = userRpc.User(uid)   return  }, func() (err error) {   pd.Store, err = storeRpc.Store(pid)   return  }, func() (err error) {   pd.Order, err = orderRpc.Order(pid)   return  })   if err != nil {   log.Printf(\"product detail error: %v\", err)   return nil, err  }   return &amp;pd, nil } <\/code><\/pre>\n<p>\u8be5\u793a\u4f8b\u4e2d\u8fd4\u56de\u5546\u54c1\u8be6\u60c5\u4f9d\u8d56\u4e86\u591a\u4e2a\u670d\u52a1\u83b7\u53d6\u6570\u636e\uff0c\u56e0\u6b64\u505a\u5e76\u53d1\u7684\u4f9d\u8d56\u5904\u7406\uff0c\u5bf9\u63a5\u53e3\u7684\u6027\u80fd\u6709\u5f88\u5927\u7684\u63d0\u5347<\/p>\n<p>\u573a\u666f\u4e8c: \u5f88\u591a\u65f6\u5019\u6211\u4eec\u9700\u8981\u5bf9\u4e00\u6279\u6570\u636e\u8fdb\u884c\u5904\u7406\uff0c\u6bd4\u5982\u5bf9\u4e00\u6279\u7528\u6237 id\uff0c\u6548\u9a8c\u6bcf\u4e2a\u7528\u6237\u7684\u5408\u6cd5\u6027\u5e76\u4e14\u6548\u9a8c\u8fc7\u7a0b\u4e2d\u6709\u4e00\u4e2a\u51fa\u9519\u5c31\u8ba4\u4e3a\u6548\u9a8c\u5931\u8d25\uff0c\u8fd4\u56de\u7684\u7ed3\u679c\u4e3a\u6548\u9a8c\u5408\u6cd5\u7684\u7528\u6237 id<\/p>\n<pre><code>func checkLegal(uids []int64) ([]int64, error) {  r, err := mr.MapReduce(func(source chan&lt;- interface{}) {   for _, uid := range uids {    source &lt;- uid   }  }, func(item interface{}, writer mr.Writer, cancel func(error)) {   uid := item.(int64)   ok, err := check(uid)   if err != nil {    cancel(err)   }   if ok {    writer.Write(uid)   }  }, func(pipe &lt;-chan interface{}, writer mr.Writer, cancel func(error)) {   var uids []int64   for p := range pipe {    uids = append(uids, p.(int64))   }   writer.Write(uids)  })  if err != nil {         log.Printf(\"check error: %v\", err)   return nil, err  }   return r.([]int64), nil }  func check(uid int64) (bool, error) {  \/\/ do something check user legal  return true, nil } <\/code><\/pre>\n<p>\u8be5\u793a\u4f8b\u4e2d\uff0c\u5982\u679c check \u8fc7\u7a0b\u51fa\u73b0\u9519\u8bef\u5219\u901a\u8fc7 cancel \u65b9\u6cd5\u7ed3\u675f\u6548\u9a8c\u8fc7\u7a0b\uff0c\u5e76\u8fd4\u56de error \u6574\u4e2a\u6548\u9a8c\u8fc7\u7a0b\u7ed3\u675f\uff0c\u5982\u679c\u67d0\u4e2a uid \u6548\u9a8c\u7ed3\u679c\u4e3a false \u5219\u6700\u7ec8\u7ed3\u679c\u4e0d\u8fd4\u56de\u8be5 uid<\/p>\n<p><em><strong>MapReduce \u4f7f\u7528\u6ce8\u610f\u4e8b\u9879<\/strong><\/em><\/p>\n<ul>\n<li>mapper \u548c reducer \u4e2d\u90fd\u53ef\u4ee5\u8c03\u7528 cancel\uff0c\u53c2\u6570\u4e3a error\uff0c\u8c03\u7528\u540e\u7acb\u5373\u8fd4\u56de\uff0c\u8fd4\u56de\u7ed3\u679c\u4e3a nil, error<\/li>\n<li>mapper \u4e2d\u5982\u679c\u4e0d\u8c03\u7528 writer.Write \u5219 item \u6700\u7ec8\u4e0d\u4f1a\u88ab reducer \u805a\u5408<\/li>\n<li>reducer \u4e2d\u5982\u679c\u4e0d\u8c03\u7528 writer.Wirte \u5219\u8fd4\u56de\u7ed3\u679c\u4e3a nil, ErrReduceNoOutput<\/li>\n<li>reducer \u4e3a\u5355\u7ebf\u7a0b\uff0c\u6240\u6709 mapper \u51fa\u6765\u7684\u7ed3\u679c\u5728\u8fd9\u91cc\u4e32\u884c\u805a\u5408<\/li>\n<\/ul>\n<p><em><strong>\u5b9e\u73b0\u539f\u7406\u5206\u6790:<\/strong><\/em><\/p>\n<p>MapReduce \u4e2d\u9996\u5148\u901a\u8fc7 buildSource \u65b9\u6cd5\u901a\u8fc7\u6267\u884c generate(\u53c2\u6570\u4e3a\u65e0\u7f13\u51b2 channel)\u4ea7\u751f\u6570\u636e\uff0c\u5e76\u8fd4\u56de\u65e0\u7f13\u51b2\u7684 channel\uff0cmapper \u4f1a\u4ece\u8be5 channel \u4e2d\u8bfb\u53d6\u6570\u636e<\/p>\n<pre><code>func buildSource(generate GenerateFunc) chan interface{} {     source := make(chan interface{})     go func() {         defer close(source)         generate(source)     }()      return source } <\/code><\/pre>\n<p>\u5728 MapReduceWithSource \u65b9\u6cd5\u4e2d\u5b9a\u4e49\u4e86 cancel \u65b9\u6cd5\uff0cmapper \u548c reducer \u4e2d\u90fd\u53ef\u4ee5\u8c03\u7528\u8be5\u65b9\u6cd5\uff0c\u8c03\u7528\u540e\u4e3b\u7ebf\u7a0b\u6536\u5230 close \u4fe1\u53f7\u4f1a\u7acb\u9a6c\u8fd4\u56de<\/p>\n<pre><code>cancel := once(func(err error) {     if err != nil {         retErr.Set(err)     } else {         \/\/ \u9ed8\u8ba4\u7684 error         retErr.Set(ErrCancelWithNil)     }      drain(source)     \/\/ \u8c03\u7528 close(ouput)\u4e3b\u7ebf\u7a0b\u6536\u5230 Done \u4fe1\u53f7\uff0c\u7acb\u9a6c\u8fd4\u56de     finish() }) <\/code><\/pre>\n<p>\u5728 mapperDispatcher \u65b9\u6cd5\u4e2d\u8c03\u7528\u4e86 executeMappers\uff0cexecuteMappers \u6d88\u8d39 buildSource \u4ea7\u751f\u7684\u6570\u636e\uff0c\u6bcf\u4e00\u4e2a item \u90fd\u4f1a\u8d77\u4e00\u4e2a goroutine \u5355\u72ec\u5904\u7406\uff0c\u9ed8\u8ba4\u6700\u5927\u5e76\u53d1\u6570\u4e3a 16\uff0c\u53ef\u4ee5\u901a\u8fc7 WithWorkers \u8fdb\u884c\u8bbe\u7f6e<\/p>\n<pre><code>var wg sync.WaitGroup defer func() {     wg.Wait() \/\/ \u4fdd\u8bc1\u6240\u6709\u7684 item \u90fd\u5904\u7406\u5b8c\u6210     close(collector) }()  pool := make(chan lang.PlaceholderType, workers) writer := newGuardedWriter(collector, done) \/\/ \u5c06 mapper \u5904\u7406\u5b8c\u7684\u6570\u636e\u5199\u5165 collector for {     select {     case &lt;-done: \/\/ \u5f53\u8c03\u7528\u4e86 cancel \u4f1a\u89e6\u53d1\u7acb\u5373\u8fd4\u56de         return     case pool &lt;- lang.Placeholder: \/\/ \u63a7\u5236\u6700\u5927\u5e76\u53d1\u6570         item, ok := &lt;-input         if !ok {             &lt;-pool             return         }          wg.Add(1)         go func() {             defer func() {                 wg.Done()                 &lt;-pool             }()              mapper(item, writer) \/\/ \u5bf9 item \u8fdb\u884c\u5904\u7406\uff0c\u5904\u7406\u5b8c\u8c03\u7528 writer.Write \u628a\u7ed3\u679c\u5199\u5165 collector \u5bf9\u5e94\u7684 channel \u4e2d         }()     } } <\/code><\/pre>\n<p>reducer \u5355 goroutine \u5bf9\u6570 mapper \u5199\u5165 collector \u7684\u6570\u636e\u8fdb\u884c\u5904\u7406\uff0c\u5982\u679c reducer \u4e2d\u6ca1\u6709\u624b\u52a8\u8c03\u7528 writer.Write \u5219\u6700\u7ec8\u4f1a\u6267\u884c finish \u65b9\u6cd5\u5bf9 output \u8fdb\u884c close \u907f\u514d\u6b7b\u9501<\/p>\n<pre><code>go func() {     defer func() {         if r := recover(); r != nil {             cancel(fmt.Errorf(\"%v\", r))         } else {             finish()         }     }()     reducer(collector, writer, cancel) }() <\/code><\/pre>\n<p>\u5728\u8be5\u5de5\u5177\u5305\u4e2d\u8fd8\u63d0\u4f9b\u4e86\u8bb8\u591a\u9488\u5bf9\u4e0d\u540c\u4e1a\u52a1\u573a\u666f\u7684\u65b9\u6cd5\uff0c\u5b9e\u73b0\u539f\u7406\u4e0e MapReduce \u5927\u540c\u5c0f\u5f02\uff0c\u611f\u5174\u8da3\u7684\u540c\u5b66\u53ef\u4ee5\u67e5\u770b\u6e90\u7801\u5b66\u4e60<\/p>\n<ul>\n<li>MapReduceVoid \u529f\u80fd\u548c MapReduce \u7c7b\u4f3c\u4f46\u6ca1\u6709\u7ed3\u679c\u8fd4\u56de\u53ea\u8fd4\u56de error<\/li>\n<li>Finish \u5904\u7406\u56fa\u5b9a\u6570\u91cf\u7684\u4f9d\u8d56\uff0c\u8fd4\u56de error\uff0c\u6709\u4e00\u4e2a error \u7acb\u5373\u8fd4\u56de<\/li>\n<li>FinishVoid \u548c Finish \u65b9\u6cd5\u529f\u80fd\u7c7b\u4f3c\uff0c\u6ca1\u6709\u8fd4\u56de\u503c<\/li>\n<li>Map \u53ea\u505a generate \u548c mapper \u5904\u7406\uff0c\u8fd4\u56de channel<\/li>\n<li>MapVoid \u548c Map \u529f\u80fd\u7c7b\u4f3c\uff0c\u65e0\u8fd4\u56de<\/li>\n<\/ul>\n<p>\u672c\u6587\u4e3b\u8981\u4ecb\u7ecd\u4e86 go-zero \u6846\u67b6\u4e2d\u7684 MapReduce \u5de5\u5177\uff0c\u5728\u5b9e\u9645\u7684\u9879\u76ee\u4e2d\u975e\u5e38\u5b9e\u7528\u3002\u7528\u597d\u5de5\u5177\u5bf9\u4e8e\u63d0\u5347\u670d\u52a1\u6027\u80fd\u548c\u5f00\u53d1\u6548\u7387\u90fd\u6709\u5f88\u5927\u7684\u5e2e\u52a9\uff0c\u5e0c\u671b\u672c\u7bc7\u6587\u7ae0\u80fd\u7ed9\u5927\u5bb6\u5e26\u6765\u4e00\u4e9b\u6536\u83b7\u3002<\/p>\n<h2>\u9879\u76ee\u5730\u5740<\/h2>\n<p>https:\/\/github.com\/tal-tech\/go-zero<\/p>\n<h2>\u5fae\u4fe1\u4ea4\u6d41\u7fa4<\/h2>\n<p> <img decoding=\"async\" src=\"http:\/\/4563.org\/wp-content\/uploads\/2020\/09\/20200917_5f63541ad5935.jpg\" alt=\"\u901a\u8fc7 MapReduce \u964d\u4f4e\u670d\u52a1\u54cd\u5e94\u65f6\u95f4\" \/>  <\/div>\n<div> <b>\u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (<span>1<\/span>)        <\/div>\n<div> <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<ul>\n<li data-pid=\"3287352\" data-uid=\"2\">\n<div>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : kangsheng9527 <\/span>  <\/div>\n<div> <i title=\"\u5f15\u7528\"><\/i>  <span>          <\/span> <\/div>\n<\/p><\/div>\n<div>                                                             \u5927\u795e\u4e4b\u8def\u514d\u4e2d\u4ecb\u3002\u3002\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n<li>\n","protected":false},"excerpt":{"rendered":"<p>\u901a\u8fc7 MapReduce \u964d\u4f4e\u670d\u52a1&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/155399"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=155399"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/155399\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=155399"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=155399"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=155399"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}