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Revision 49714

Added by Argiro Kokogiannaki over 6 years ago

Add host for redis, get proper answer, add cors

View differences:

modules/uoa-services-portal/trunk/services/cache/mecache/package.json
1 1 
{
2 
  "name": "server-side-cache-with-express",
3 
  "main": "server.js",
2 
  "name": "memcache-cache",
3 
  "version": "1.0.0",
4 
  "description": "Caching in memory",
5 
  "main": "cache.js",
4 6 
  "scripts": {
5 
    "start": "node cache.js"
7 
    "start": "PORT=3000 node cache.js"
6 8 
  },
7 9 
  "dependencies": {
10 
    "cors": "^2.8.4",
8 11 
    "express": "^4.15.3",
9 12 
    "memory-cache": "^0.2.0",
10 13 
    "superagent": "^3.8.0"
......
12 15 
  "engines": {
13 16 
    "node": "8.1.x"
14 17 
  },
15 
  "license": "MIT"
18 
  "author": "Argiro Kokogiannaki <argirok@di.uoa.gr>",
19 
  "license": "NKUA"
16 20 
}
modules/uoa-services-portal/trunk/services/cache/mecache/cache.js
5 5 
var mcache = require('memory-cache');
6 6 
const request = require('superagent');
7 7 

  		




  
  8
  
    
var cors = require('cors')


  		




  
  9
  
    
app.use(cors())


  		




  
  10
  
    

  		




  8
  11
  
    
var cache = (duration) => {


  		




  9
  12
  
    
  return (req, res, next) => {


  		




  
  13
  
    

  		




  10
  14
  
    
    let key = '__express__' + req.originalUrl || req.url


  		




  11
  15
  
    
    let cachedBody = mcache.get(key)


  		




  12
  16
  
    
    if (cachedBody) {


  		




  13
  
  
    
      res.send(cachedBody)


  		




  
  17
  
    

  		




  
  18
  
    
      res.send(JSON.parse(cachedBody))


  		




  14
  19
  
    
      return


  		




  15
  20
  
    
    } else {


  		




  16
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      res.sendResponse = res.send


  		




  17
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      res.send = (body) => {


  		




  18
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        mcache.put(key, body, duration * 1000);


  		




  19
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        res.sendResponse(body)


  		




  
  25
  
    

  		




  20
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      }


  		




  21
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      next()


  		




  22
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    }


  		




  ......




  24
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}


  		




  25
  31
  
    

  		




  26
  32
  
    

  		




  27
  
  
    
app.get('/get',cache(10), (req, res) => {


  		




  
  33
  
    
app.get('/get',cache(10), cors(), (req, res) => {


  		




  28
  34
  
    
  setTimeout(() => {


  		




  29
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    const url = (req.query)?req.query.url:null;


  		




  30
  36
  
    
    if (!url){


  		




  ......




  32
  38
  
    

  		




  33
  39
  
    
    }else{


  		




  34
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     request.get(url, function (err, response) {


  		




  
  41
  
    
       // res.header("Access-Control-Allow-Origin", "http://localhost:3000");


  		




  
  42
  
    
       res.header("Access-Control-Allow-Headers", "Origin, Content-Type,  Content-Length");


  		




  
  43
  
    
       res.header("Access-Control-Allow-Methods", "GET,  OPTIONS");


  		




  
  44
  
    
       res.header("Access-Control-Allow-Methods", "GET,  OPTIONS");


  		




  
  45
  
    
       res.header("Content-Type","application/json");


  		




  
  46
  
    

  		




  35
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          if (err) throw err;


  		




  36
  
  
    

  		




  37
  
  
    
          // response.body contains an array of public repositories


  		




  38
  
  
    
          // var repoNumber = response.body.length;


  		




  39
  
  
    
          res.send(response);


  		




  
  48
  
    
          res.send(response.body);


  		




  40
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    })


  		




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  }


  		




  42
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})


  		












  

    
      modules/uoa-services-portal/trunk/services/cache/mecache/npm-debug.log
    
  





  3
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2 info using npm@4.1.2


  		




  4
  4
  
    
3 info using node@v7.6.0


  		




  5
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4 verbose run-script [ 'prestart', 'start', 'poststart' ]


  		




  6
  
  
    
5 info lifecycle server-side-cache-with-express@~prestart: server-side-cache-with-express@


  		




  7
  
  
    
6 silly lifecycle server-side-cache-with-express@~prestart: no script for prestart, continuing


  		




  8
  
  
    
7 info lifecycle server-side-cache-with-express@~start: server-side-cache-with-express@


  		




  9
  
  
    
8 verbose lifecycle server-side-cache-with-express@~start: unsafe-perm in lifecycle true


  		




  10
  
  
    
9 verbose lifecycle server-side-cache-with-express@~start: PATH: /usr/local/lib/node_modules/npm/bin/node-gyp-bin:/home/argirok/projects/openaire/uoa-services-portal/trunk/services/cache/mecache/node_modules/.bin:/home/argirok/bin:/home/argirok/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/usr/lib/jvm/java-8-oracle/bin:/usr/lib/jvm/java-8-oracle/db/bin:/usr/lib/jvm/java-8-oracle/jre/bin


  		




  11
  
  
    
10 verbose lifecycle server-side-cache-with-express@~start: CWD: /home/argirok/projects/openaire/uoa-services-portal/trunk/services/cache/mecache


  		




  12
  
  
    
11 silly lifecycle server-side-cache-with-express@~start: Args: [ '-c', 'node cache.js' ]


  		




  13
  
  
    
12 silly lifecycle server-side-cache-with-express@~start: Returned: code: 1  signal: null


  		




  14
  
  
    
13 info lifecycle server-side-cache-with-express@~start: Failed to exec start script


  		




  15
  
  
    
14 verbose stack Error: server-side-cache-with-express@ start: `node cache.js`


  		




  
  6
  
    
5 info lifecycle memcache-cache@1.0.0~prestart: memcache-cache@1.0.0


  		




  
  7
  
    
6 silly lifecycle memcache-cache@1.0.0~prestart: no script for prestart, continuing


  		




  
  8
  
    
7 info lifecycle memcache-cache@1.0.0~start: memcache-cache@1.0.0


  		




  
  9
  
    
8 verbose lifecycle memcache-cache@1.0.0~start: unsafe-perm in lifecycle true


  		




  
  10
  
    
9 verbose lifecycle memcache-cache@1.0.0~start: PATH: /usr/local/lib/node_modules/npm/bin/node-gyp-bin:/home/argirok/projects/openaire/uoa-services-portal/trunk/services/cache/mecache/node_modules/.bin:/home/argirok/bin:/home/argirok/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/usr/lib/jvm/java-8-oracle/bin:/usr/lib/jvm/java-8-oracle/db/bin:/usr/lib/jvm/java-8-oracle/jre/bin


  		




  
  11
  
    
10 verbose lifecycle memcache-cache@1.0.0~start: CWD: /home/argirok/projects/openaire/uoa-services-portal/trunk/services/cache/mecache


  		




  
  12
  
    
11 silly lifecycle memcache-cache@1.0.0~start: Args: [ '-c', 'PORT=3000 node cache.js' ]


  		




  
  13
  
    
12 silly lifecycle memcache-cache@1.0.0~start: Returned: code: 1  signal: null


  		




  
  14
  
    
13 info lifecycle memcache-cache@1.0.0~start: Failed to exec start script


  		




  
  15
  
    
14 verbose stack Error: memcache-cache@1.0.0 start: `PORT=3000 node cache.js`


  		




  16
  16
  
    
14 verbose stack Exit status 1


  		




  17
  17
  
    
14 verbose stack     at EventEmitter.<anonymous> (/usr/local/lib/node_modules/npm/lib/utils/lifecycle.js:279:16)


  		




  18
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14 verbose stack     at emitTwo (events.js:106:13)


  		




  ......




  22
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14 verbose stack     at ChildProcess.emit (events.js:192:7)


  		




  23
  23
  
    
14 verbose stack     at maybeClose (internal/child_process.js:890:16)


  		




  24
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14 verbose stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:226:5)


  		




  25
  
  
    
15 verbose pkgid server-side-cache-with-express@


  		




  
  25
  
    
15 verbose pkgid memcache-cache@1.0.0


  		




  26
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16 verbose cwd /home/argirok/projects/openaire/uoa-services-portal/trunk/services/cache/mecache


  		




  27
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17 error Linux 4.4.0-97-generic


  		




  28
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18 error argv "/usr/local/bin/node" "/usr/local/bin/npm" "start"


  		




  29
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19 error node v7.6.0


  		




  30
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20 error npm  v4.1.2


  		




  31
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21 error code ELIFECYCLE


  		




  32
  
  
    
22 error server-side-cache-with-express@ start: `node cache.js`


  		




  
  32
  
    
22 error memcache-cache@1.0.0 start: `PORT=3000 node cache.js`


  		




  33
  33
  
    
22 error Exit status 1


  		




  34
  
  
    
23 error Failed at the server-side-cache-with-express@ start script 'node cache.js'.


  		




  
  34
  
    
23 error Failed at the memcache-cache@1.0.0 start script 'PORT=3000 node cache.js'.


  		




  35
  35
  
    
23 error Make sure you have the latest version of node.js and npm installed.


  		




  36
  
  
    
23 error If you do, this is most likely a problem with the server-side-cache-with-express package,


  		




  
  36
  
    
23 error If you do, this is most likely a problem with the memcache-cache package,


  		




  37
  37
  
    
23 error not with npm itself.


  		




  38
  38
  
    
23 error Tell the author that this fails on your system:


  		




  39
  
  
    
23 error     node cache.js


  		




  
  39
  
    
23 error     PORT=3000 node cache.js


  		




  40
  40
  
    
23 error You can get information on how to open an issue for this project with:


  		




  41
  
  
    
23 error     npm bugs server-side-cache-with-express


  		




  
  41
  
    
23 error     npm bugs memcache-cache


  		




  42
  42
  
    
23 error Or if that isn't available, you can get their info via:


  		




  43
  
  
    
23 error     npm owner ls server-side-cache-with-express


  		




  
  43
  
    
23 error     npm owner ls memcache-cache


  		




  44
  44
  
    
23 error There is likely additional logging output above.


  		




  45
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24 verbose exit [ 1, true ]


  		












  

    
      modules/uoa-services-portal/trunk/services/cache/redis/package.json
    
  





  1
  1
  
    
{


  		




  2
  
  
    
  "name": "redis-caching-tutorial",


  		




  
  2
  
    
  "name": "redis-cache",


  		




  3
  3
  
    
  "version": "1.0.0",


  		




  4
  
  
    
  "description": "Introduction to caching with Redis",


  		




  5
  
  
    
  "main": "index.js",


  		




  
  4
  
    
  "description": "Caching with Redis",


  		




  
  5
  
    
  "main": "cache.js",


  		




  6
  6
  
    
  "scripts": {


  		




  7
  7
  
    
    "test": "echo \"Error: no test specified\" && exit 1",


  		




  8
  
  
    
    "start": "PORT=3000 REDIS_PORT=7777 node cache.js",


  		




  9
  
  
    
    "dev": "PORT=3000 REDIS_PORT=7777 node --debug=5858 index.js"


  		




  
  8
  
    
    "start": "PORT=3000 REDIS_PORT=6379 REDIS_HOST=vatopedi.di.uoa.gr node cache.js",


  		




  
  9
  
    
    "dev": "PORT=3000 REDIS_PORT=6379 REDIS_HOST=vatopedi.di.uoa.gr node --debug=5858 index.js"


  		




  10
  10
  
    
  },


  		




  11
  11
  
    
  "author": "Argiro Kokogiannaki <argirok@di.uoa.gr>",


  		




  12
  12
  
    
  "license": "NKUA",


  		












  

    
      modules/uoa-services-portal/trunk/services/cache/redis/cache.js
    
  





  3
  3
  
    
const request = require('superagent');


  		




  4
  4
  
    
const PORT = process.env.PORT;


  		




  5
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const REDIS_PORT = process.env.REDIS_PORT;


  		




  
  6
  
    
const REDIS_HOST = process.env.REDIS_HOST;


  		




  6
  7
  
    

  		




  7
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const app = express();


  		




  8
  
  
    
const client = redis.createClient(REDIS_PORT);


  		




  
  9
  
    
const client = redis.createClient(REDIS_PORT, REDIS_HOST);


  		




  9
  10
  
    

  		




  10
  
  
    
function respond(org, numberOfRepos) {


  		




  11
  
  
    
    return `Organization "${org}" has ${numberOfRepos} public repositories.`;


  		




  12
  
  
    
}


  		




  
  11
  
    
// function respond(org, numberOfRepos) {


  		




  
  12
  
    
//     return `Organization "${org}" has ${numberOfRepos} public repositories.`;


  		




  
  13
  
    
// }


  		




  13
  14
  
    

  		




  14
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function cache(req, res, next) {


  		




  15
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    const url = req.query.url;


  		




  16
  17
  
    
    client.get(url, function (err, data) {


  		




  17
  18
  
    
        if (data != null) {


  		




  18
  
  
    
            res.send(respond(url, data));


  		




  
  19
  
    
            res.send(data);


  		




  19
  20
  
    
        } else {


  		




  20
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            next();


  		




  21
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        }


  		




  ......




  51
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  52
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          // response.body contains an array of public repositories


  		




  53
  54
  
    
          // var repoNumber = response.body.length;


  		




  54
  
  
    
          res.send(response);


  		




  
  55
  
    
          res.send(response.body);


  		




  55
  56
  
    
    })


  		




  56
  57
  
    
  }


  		




  57
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})


  		












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