HighLoadCup Mail.ru (- ). .
: User, Location, Visit. REST-API , .. 6 .
- {GET, POST} /user/:id
- {GET, POST} /location/:id
- {GET, POST} /visit/:id
- POST /user/new
- POST /location/new
- POST /visit/new
, , HTTP- .
++, . Go . , . , , net/http, encoding/json , .
200 , JSON- . http- ( )
fasthttp, JSON
buger/jsonparser ( , ), , - .
type User struct {
id uint
email string
first_name string
last_name string
gender bool
birth_date int64
age int
visits Visits
json []byte
}
type Location struct {
id uint
place string
country string
city string
distance int64
visits Visits
json []byte
}
type Visit struct {
id uint
location *Location
user *User
visited_at int64
mark int64
json []byte
}
, . , 10- ( ).
. FAQ, - . , .
:
func countAge(timestamp *int64) int {
now := time.Now()
t := time.Unix(*timestamp, 0)
years := now.Year() - t.Year()
if now.Month() > t.Month() || now.Month() == t.Month() && now.Day() >= t.Day() {
years += 1
}
return years
}
10 2 RPS. . JSON , , , . , , . , ( 10 ).
, . fasthttp tcp- epoll. 65 , .
39 , . , Go highload ( highload). , - ( ), 28 .
( , ) . (busy-polling, ). , , .
P.S. :)
( - )
.
