tiny-url-ex/root/i.go

89 lines
1.5 KiB
Go

package main
import (
e "git.xdrm.io/go/xb-api/err"
i "git.xdrm.io/go/xb-api/implement"
r "github.com/go-redis/redis"
)
// Initiates connection to redis dataset
func redisConnect() (*r.Client, error) {
cli := r.NewClient(&r.Options{
Addr: "127.0.0.1:6379",
Password: "",
DB: 0,
})
_, err := cli.Ping().Result()
return cli, err
}
// Redirects to an url from a key
func Get(d i.Arguments, r *i.Response) i.Response {
/* (1) Init redis connection */
cli, err := redisConnect()
if err != nil {
r.Err = e.Failure
return *r
}
/* (2) Extract api input */
key, ok := d["url"].(string)
if !ok {
r.Err = e.InvalidParam
r.Err.BindArgument("url")
return *r
}
/* (3) Check if match for this key */
val, err := cli.Get(key).Result()
if err != nil {
r.Err = e.NoMatchFound
return *r
}
/* (4) Redirect to value */
r.Set("_REDIRECT_", val)
r.Err = e.Success
return *r
}
// Stores a new tinyurl/fullurl combination
func Post(d i.Arguments, r *i.Response) i.Response {
/* (1) Init redis connection */
cli, err := redisConnect()
if err != nil {
r.Err = e.Failure
return *r
}
/* (2) Extract api input */
target, ok1 := d["target"].(string)
url, ok2 := d["url"].(string)
if !ok1 || !ok2 {
r.Err = e.InvalidParam
return *r
}
/* (3) Check if key already used */
_, err = cli.Get(url).Result()
if err == nil {
r.Err = e.AlreadyExists
return *r
}
/* (4) Store */
err = cli.Set(url, target, 0).Err()
if err != nil {
r.Err = e.Failure
return *r
}
r.Err = e.Success
return *r
}