{"id":202082,"date":"2025-05-10T12:10:39","date_gmt":"2025-05-10T04:10:39","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202082\/"},"modified":"2025-05-10T12:10:39","modified_gmt":"2025-05-10T04:10:39","slug":"%e4%bd%bf%e7%94%a8redis%e5%92%8cnode-js%e6%89%93%e9%80%a0%e9%ab%98%e5%8f%af%e7%94%a8%e7%9a%84api%e6%9c%8d%e5%8a%a1","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202082\/","title":{"rendered":"\u4f7f\u7528Redis\u548cNode.js\u6253\u9020\u9ad8\u53ef\u7528\u7684API\u670d\u52a1"},"content":{"rendered":"

<\/b> <\/p>\n

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const redis = require('redis');\nconst client = redis.createClient();\n\nfunction getCachedData(key) {\n  return new Promise((resolve, reject) => {\n    client.get(key, (error, result) => {\n      if (error) {\n        reject(error);\n      } else {\n        resolve(JSON.parse(result));\n      }\n    });\n  });\n}\n\nfunction cacheData(key, data, expiration) {\n  client.setex(key, expiration, JSON.stringify(data));\n}\n\n\/\/ \u4f7f\u7528\u793a\u4f8b\nasync function getDataFromAPI(params) {\n  const cacheKey = generateCacheKey(params);\n  const cachedData = await getCachedData(cacheKey);\n\n  if (cachedData) {\n    return cachedData;\n  }\n\n  const apiData = await fetchDataFromAPI(params);\n\n  \/\/ \u5c06\u6570\u636e\u7f13\u5b58\u4e00\u5929\n  cacheData(cacheKey, apiData, 86400);\n\n  return apiData;\n}<\/pre>\n
\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u901a\u8fc7\u8c03\u7528getCachedData<\/code>\u65b9\u6cd5\u4eceRedis\u4e2d\u83b7\u53d6\u7f13\u5b58\u6570\u636e\uff0c\u5982\u679c\u4e0d\u5b58\u5728\u7f13\u5b58\u6570\u636e\uff0c\u5219\u8c03\u7528fetchDataFromAPI<\/code>\u65b9\u6cd5\u4eceAPI\u83b7\u53d6\u6570\u636e\uff0c\u5e76\u5c06\u5176\u5b58\u50a8\u5728Redis\u4e2d\u3002\u8fd9\u6837\uff0c\u5728\u4e4b\u540e\u7684\u8bf7\u6c42\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u76f4\u63a5\u4ece\u7f13\u5b58\u4e2d\u83b7\u53d6\u6570\u636e\uff0c\u800c\u4e0d\u9700\u8981\u9891\u7e41\u5730\u8bbf\u95eeAPI\u6216\u6570\u636e\u5e93\u3002<\/p>\n
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\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528Redis\u4f5c\u4e3a\u6d88\u606f\u961f\u5217\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n
const redis = require('redis');\nconst client = redis.createClient();\n\nfunction subscribe(channel, callback) {\n  client.subscribe(channel, callback);\n}\n\nfunction publish(channel, message) {\n  client.publish(channel, JSON.stringify(message));\n}\n\n\/\/ \u4f7f\u7528\u793a\u4f8b\nfunction handleMessage(channel, message) {\n  const data = JSON.parse(message);\n\n  \/\/ \u5904\u7406\u6d88\u606f\n  \/\/ ...\n\n  console.log('Received message:', data);\n}\n\nsubscribe('api_requests', handleMessage);\n\n\/\/ \u5c06\u6d88\u606f\u53d1\u5e03\u5230\u961f\u5217\npublish('api_requests', { \"method\": \"GET\", \"path\": \"\/api\/users\" });<\/pre>\n
\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528subscribe<\/code>\u65b9\u6cd5\u8ba2\u9605\u4e86\u4e00\u4e2a\u540d\u4e3aapi_requests<\/code>\u7684\u9891\u9053\uff0c\u5e76\u6307\u5b9a\u4e86\u4e00\u4e2a\u56de\u8c03\u51fd\u6570\u6765\u5904\u7406\u63a5\u6536\u5230\u7684\u6d88\u606f\u3002\u901a\u8fc7\u8c03\u7528publish<\/code>\u65b9\u6cd5\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u6d88\u606f\u53d1\u9001\u5230api_requests<\/code>\u9891\u9053\uff0c\u4ece\u800c\u89e6\u53d1\u76f8\u5e94\u7684\u5904\u7406\u903b\u8f91\u3002<\/p>\n
\u56db\u3001\u4f7f\u7528Node.js\u6784\u5efaAPI\u670d\u52a1
Node.js\u975e\u5e38\u9002\u5408\u6784\u5efa\u9ad8\u6027\u80fd\u7684API\u670d\u52a1\uff0c\u5b83\u7684\u4e8b\u4ef6\u9a71\u52a8\u548c\u975e\u963b\u585eI\/O\u6a21\u578b\u4f7f\u5f97\u5b83\u80fd\u591f\u5904\u7406\u5927\u91cf\u7684\u5e76\u53d1\u8bf7\u6c42\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Express.js\u4f5c\u4e3aNode.js\u7684\u670d\u52a1\u7aef\u6846\u67b6\uff0c\u5b83\u63d0\u4f9b\u4e86\u7b80\u6d01\u7684API\u548c\u5f3a\u5927\u7684\u4e2d\u95f4\u4ef6\u652f\u6301\u3002<\/p>\n
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const express = require('express');\nconst app = express();\n\n\/\/ \u5904\u7406\u8bf7\u6c42\napp.get('\/api\/users', async (req, res) => {\n  const data = await getDataFromAPI(req.query);\n\n  res.json(data);\n});\n\n\/\/ \u5176\u4ed6API\u8def\u7531\n\/\/ ...\n\napp.listen(3000, () => {\n  console.log('API server is running on port 3000');\n});<\/pre>\n
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\u7ed3\u8bba\uff1a
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\u53c2\u8003\u8d44\u6599\uff1a<\/p>\n
    \n
  1. Redis – https:\/\/redis.io\/<\/li>\n
  2. Node.js – https:\/\/nodejs.org\/<\/li>\n
  3. Express.js – https:\/\/expressjs.com\/<\/li>\n<\/ol>\n
    \n
    \n <\/dt>\n
    \n   \u5982\u4f55\u5728MySQL\u4e2d\u521b\u5efa\u65b0\u7684\u6570\u636e\u5e93\uff1f\n <\/dd>\n<\/dl>\n
    \n
    \n <\/dt>\n
    \n   \u5982\u4f55\u4f7f\u7528MySQL\u5728Django\u4e2d\u5b9e\u73b0\u6570\u636e\u8fc1\u79fb\u529f\u80fd\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
    \u4f7f\u7528Redis\u548cNode.js\u6253...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-202082","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202082","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=202082"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202082\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202082"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202082"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202082"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}