concurrent-api-rate-limiter

After having cloned the app, the app could be started by either running mvn spring-boot:run under /rateLimiter or by directly running the class RateLimiterApplication.java.

It will load all hotel data to cache from hoteldb.csv file. And it will also load api keys from apikeys.csv file.

Acccess points

1. curl http://localhost:8080/hotels/1 -H "AUTHORIZED-API-KEY:abcXYZkeyAPI-4" -X GET

Above rest url will give hotel details of city id 1.

2. URL to access price of the hotels in ascending order of price

curl http://localhost:8080/hotels/1/price/sort/asc -H "AUTHORIZED-API-KEY:abcXYZkeyAPI-0" -X GET

3. URL to access price of the hotels in descending order of price

curl http://localhost:8080/hotels/1/price/sort/desc -H "AUTHORIZED-API-KEY:abcXYZkeyAPI-0" -X GET

At the moment it has loaded 4 api keys:

API-KEY,RATE-LIMIT

abcXYZkeyAPI-0,1

abcXYZkeyAPI-1

abcXYZkeyAPI-2,1

abcXYZkeyAPI-4,2

Apache Benchmark metrics

Total Number of requests : 1000

Number of concurrent requests : 100

Below is the command to get AB metrics

ab -c 100 -n 1000 -H 'AUTHORIZED-API-KEY:abcXYZkeyAPI-4' -v 1 localhost:8080/hotels/1/price/sort/asc

Metrics

Server Software:
Server Hostname: localhost Server Port: 8080

Document Path: /hotels/1/price/sort/asc Document Length: 198 bytes

Concurrency Level: 100

Time taken for tests: 1.470 seconds

Complete requests: 1000

Failed requests: 0

Non-2xx responses: 1000

Requests per second: 680.40 [#/sec] (mean)

Time per request: 146.973 [ms] (mean)

Time per request: 1.470 [ms] (mean, across all concurrent requests)

Transfer rate: 234.70 [Kbytes/sec] received

Percentage of the requests served within a certain time (ms)

50% 142

66% 165

75% 181

80% 189

90% 194

95% 197

98% 210

99% 221

100% 351 (longest request)