Demonstrates basic HTTP implementation using expressjs framework
Clone the repo and install dependecies
npm install
npm test
First build from typescript to javascript
npm run build
The compiled sources will be generated in the dist directory. Now you can execute the app by issuing the following command.
node dist/index.js
npm run start:dev
Retrieve a list of messages
Request
GET /messages
curl http://localhost:3000/messagesResponse
Status code: 200 OK
Response body:
{"messages":[]}Post a new message
Request
POST /messages
Payload
Content-Type: application/json
{"message":"Hello, World!"}
curl -X POST http://localhost:3000/messages -H "Content-Type: application/json" -d '{"message":"Hello, World!"}'
Response
Status code: 201 Accepted
Response body:
{"message":"Message received"}Building image
docker build -t messages-app-express .
Run container
docker run -p 3000:3000 messages-app-express
k6 run loadtest.js
Result - docker
✓ status was 201
checks.........................: 100.00% ✓ 56800 ✗ 0
data_received..................: 15 MB 128 kB/s
data_sent......................: 9.5 MB 79 kB/s
http_req_blocked...............: avg=31.6µs min=0s med=0s max=20.26ms p(90)=0s p(95)=0s
http_req_connecting............: avg=4.71µs min=0s med=0s max=7.56ms p(90)=0s p(95)=0s
http_req_duration..............: avg=9.03ms min=504.1µs med=6.91ms max=104.36ms p(90)=19.09ms p(95)=22.47ms
{ expected_response:true }...: avg=9.03ms min=504.1µs med=6.91ms max=104.36ms p(90)=19.09ms p(95)=22.47ms
http_req_failed................: 0.00% ✓ 0 ✗ 56800
http_req_receiving.............: avg=33.97µs min=0s med=0s max=2.71ms p(90)=0s p(95)=517.9µs
http_req_sending...............: avg=15.15µs min=0s med=0s max=7.87ms p(90)=0s p(95)=0s
http_req_tls_handshaking.......: avg=0s min=0s med=0s max=0s p(90)=0s p(95)=0s
http_req_waiting...............: avg=8.99ms min=503.6µs med=6.88ms max=104.36ms p(90)=19.04ms p(95)=22.39ms
http_reqs......................: 56800 472.715055/s
iteration_duration.............: avg=211.49ms min=200.51ms med=211.44ms max=325.29ms p(90)=220.05ms p(95)=223.9ms
iterations.....................: 56800 472.715055/s
vus............................: 100 min=100 max=100
Results - nodemon develop
✓ status was 201
checks.........................: 100.00% ✓ 57948 ✗ 0
data_received..................: 16 MB 130 kB/s
data_sent......................: 9.7 MB 81 kB/s
http_req_blocked...............: avg=23.8µs min=0s med=0s max=15.57ms p(90)=0s p(95)=0s
http_req_connecting............: avg=772ns min=0s med=0s max=2.51ms p(90)=0s p(95)=0s
http_req_duration..............: avg=5.2ms min=0s med=3.19ms max=82.52ms p(90)=12.46ms p(95)=15.94ms
{ expected_response:true }...: avg=5.2ms min=0s med=3.19ms max=82.52ms p(90)=12.46ms p(95)=15.94ms
http_req_failed................: 0.00% ✓ 0 ✗ 57948
http_req_receiving.............: avg=26.99µs min=0s med=0s max=5.15ms p(90)=0s p(95)=131.3µs
http_req_sending...............: avg=9.23µs min=0s med=0s max=8.82ms p(90)=0s p(95)=0s
http_req_tls_handshaking.......: avg=0s min=0s med=0s max=0s p(90)=0s p(95)=0s
http_req_waiting...............: avg=5.17ms min=0s med=3.16ms max=82.52ms p(90)=12.38ms p(95)=15.87ms
http_reqs......................: 57948 482.276302/s
iteration_duration.............: avg=207.25ms min=200ms med=204.32ms max=297.73ms p(90)=216.45ms p(95)=218.06ms
iterations.....................: 57948 482.276302/s
vus............................: 100 min=100 max=100
vus_max........................: 100 min=100 max=100
Results - local build
✓ status was 201
checks.........................: 100.00% ✓ 58002 ✗ 0
data_received..................: 16 MB 130 kB/s
data_sent......................: 9.7 MB 81 kB/s
http_req_blocked...............: avg=25.64µs min=0s med=0s max=15.67ms p(90)=0s p(95)=0s
http_req_connecting............: avg=709ns min=0s med=0s max=2ms p(90)=0s p(95)=0s
http_req_duration..............: avg=4.79ms min=0s med=2.88ms max=76.93ms p(90)=11.59ms p(95)=14.85ms
{ expected_response:true }...: avg=4.79ms min=0s med=2.88ms max=76.93ms p(90)=11.59ms p(95)=14.85ms
http_req_failed................: 0.00% ✓ 0 ✗ 58002
http_req_receiving.............: avg=28.82µs min=0s med=0s max=3.04ms p(90)=0s p(95)=144.49µs
http_req_sending...............: avg=12.65µs min=0s med=0s max=3.88ms p(90)=0s p(95)=0s
http_req_tls_handshaking.......: avg=0s min=0s med=0s max=0s p(90)=0s p(95)=0s
http_req_waiting...............: avg=4.75ms min=0s med=2.84ms max=76.93ms p(90)=11.53ms p(95)=14.79ms
http_reqs......................: 58002 482.556205/s
iteration_duration.............: avg=207.07ms min=200ms med=204.09ms max=295.42ms p(90)=216.29ms p(95)=217.86ms
iterations.....................: 58002 482.556205/s
vus............................: 100 min=100 max=100
vus_max........................: 100 min=100 max=100