Generate an avatar image from a user's initials. Image background color depends on name hashes(consistent hashing).
https://initials.herokuapp.com
You may switch to heroku-branch to see how to deploy to heroku.
VERSION REQUIRED GO 1.3 or greater
$ go get github.com/holys/initials-avatar/...
import "github.com/holys/initials-avatar"
a := avatar.New("/path/to/fontfile")
b, _ := a.DrawToBytes("David", 128)
// now `b` is image data which you can write to file or http stream.
// run the http server. The port is :3000 by default. Assumes $GOBIN is in your $PATH.
$ avatar server
// try it on your browser
// http://127.0.0.1:3000/hello
// to view avaliable options
$ avatar server --help
// Chinese example
http://127.0.0.1:3000/%E5%AD%94
Environment:
MacBook Pro (Retina, 13-inch, Mid 2014)
Processor: 2.6 GHz Intel Core i5
Memory: 8 GB 1600 MHz DDR3
$ wrk -t12 -c400 -d30s http://10.20.142.147:3000/a
Running 30s test @ http://10.20.142.147:3000/a
12 threads and 400 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 14.18ms 20.56ms 127.10ms 94.18%
Req/Sec 2.36k 1.34k 5.92k 62.66%
766657 requests in 30.04s, 1.32GB read
Socket errors: connect 0, read 150, write 6, timeout 1915
Requests/sec: 25519.86
Transfer/sec: 45.00MB
$ wrk -t12 -c400 -d30s http://10.20.142.147:3000/a
Running 30s test @ http://10.20.142.147:3000/a
12 threads and 400 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 7.53ms 11.28ms 195.48ms 96.19%
Req/Sec 3.66k 2.29k 47.47k 75.96%
1285314 requests in 30.00s, 589.60MB read
Socket errors: connect 0, read 276, write 0, timeout 1872
Non-2xx or 3xx responses: 1
Requests/sec: 42849.74
Transfer/sec: 19.66MB
Thanks @lixiaojun for his work.
MIT LICENSE, see LICENSE for details.