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A tiny example API written in Go using Martini and Redigo
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| package main | |
| import ( | |
| "flag" | |
| "fmt" | |
| "net/http" | |
| "github.com/codegangsta/martini" | |
| "github.com/garyburd/redigo/redis" | |
| "github.com/martini-contrib/render" | |
| ) | |
| var ( | |
| redisAddress = flag.String("redis-address", ":6379", "Address to the Redis server") | |
| maxConnections = flag.Int("max-connections", 10, "Max connections to Redis") | |
| ) | |
| func main() { | |
| martini.Env = martini.Prod | |
| flag.Parse() | |
| redisPool := redis.NewPool(func() (redis.Conn, error) { | |
| c, err := redis.Dial("tcp", *redisAddress) | |
| if err != nil { | |
| return nil, err | |
| } | |
| return c, err | |
| }, *maxConnections) | |
| defer redisPool.Close() | |
| m := martini.Classic() | |
| m.Map(redisPool) | |
| m.Use(render.Renderer()) | |
| m.Get("/", func() string { | |
| return "Hello from Martini!" | |
| }) | |
| m.Get("/set/:key", func(r render.Render, pool *redis.Pool, params martini.Params, req *http.Request) { | |
| key := params["key"] | |
| value := req.URL.Query().Get("value") | |
| c := pool.Get() | |
| defer c.Close() | |
| status, err := c.Do("SET", key, value) | |
| if err != nil { | |
| message := fmt.Sprintf("Could not SET %s:%s", key, value) | |
| r.JSON(400, map[string]interface{}{ | |
| "status": "ERR", | |
| "message": message}) | |
| } else { | |
| r.JSON(200, map[string]interface{}{ | |
| "status": status}) | |
| } | |
| }) | |
| m.Get("/get/:key", func(r render.Render, pool *redis.Pool, params martini.Params) { | |
| key := params["key"] | |
| c := pool.Get() | |
| defer c.Close() | |
| value, err := redis.String(c.Do("GET", key)) | |
| if err != nil { | |
| message := fmt.Sprintf("Could not GET %s", key) | |
| r.JSON(400, map[string]interface{}{ | |
| "status": "ERR", | |
| "message": message}) | |
| } else { | |
| r.JSON(200, map[string]interface{}{ | |
| "status": "OK", | |
| "value": value}) | |
| } | |
| }) | |
| m.Run() | |
| } |
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