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app.go
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app.go
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package main
import (
"flag"
"fmt"
"github.com/casbin/casbin"
"github.com/go-xorm/xorm"
cm "github.com/iris-contrib/middleware/casbin"
"github.com/kataras/iris"
_ "github.com/mattn/go-sqlite3"
"os"
"strconv"
)
type Users struct {
ID int64
Name string `xrom:"varchar(30)"`
Age int `xrom:"int(10)"`
Sex string `xrom:"varchar(2)"`
}
type Config struct {
ServerHost string
}
var config *Config
// casbin RESTful Model
var Enforcer = casbin.NewEnforcer("keymatch_model.conf", "keymatch_policy.csv")
func parseFlags() {
config = &Config{}
flag.StringVar(&config.ServerHost, "p", "0.0.0.0:9800", "default server address")
flag.Usage = func() {
fmt.Fprintf(os.Stderr, "Usage of %s:\n", os.Args[0])
flag.PrintDefaults()
}
flag.Parse()
}
func main() {
parseFlags()
app := iris.New()
// casbin 权限控制
casbinMiddleware := cm.New(Enforcer)
app.WrapRouter(casbinMiddleware.Wrapper())
// sqlite 数据库
orm, err := xorm.NewEngine("sqlite3", "./users.db")
if err != nil {
fmt.Printf("orm failed to initialized, %s", err)
}
iris.RegisterOnInterrupt(func() {
orm.Close()
})
err = orm.Sync2(new(Users))
if err != nil {
fmt.Printf("orm failed to initialized Users table, %s", err)
}
// Get
// curl http://localhost:9800
app.Get("/", func(ctx iris.Context) {
ctx.WriteString("Hello Iris.")
})
// Post
// curl http://localhost:9800/users -X POST -d '{"ID":1, "Name":"ben", "Age":25, "Sex":"m"}'
app.Post("/users", func(ctx iris.Context) {
var user Users
if err := ctx.ReadJSON(&user); err != nil {
ctx.WriteString("Invalid user.")
}
orm.Insert(user)
ctx.Writef("Add successful, %#v\n", user)
})
// DELETE
// curl http://localhost:9800/users/1 -X DELETE
app.Delete("/users/{id:int}", func(ctx iris.Context) {
parmid := ctx.Params().Get("id")
id, err := strconv.ParseInt(parmid, 10, 64)
if err != nil {
ctx.WriteString("id is not valid")
}
user := Users{ID: id}
orm.Delete(user)
ctx.Writef("user deleted: %#v\n", user)
})
// Select
// curl http://localhost:9800/users/1
app.Get("/users/{id:int}", func(ctx iris.Context) {
parmid := ctx.Params().Get("id")
id, err := strconv.ParseInt(parmid, 10, 64)
if err != nil {
ctx.Writef("Invalid id, %s", err)
}
user := Users{ID: id}
if ok, _ := orm.Get(&user); ok {
ctx.Writef("user found: %#v\n", user)
} else {
ctx.WriteString("user not found.")
}
})
// Update
// curl http://localhost:9800/users/1 -X PUT -d '{"Name":"jane", "Age":20, "Sex":"f"}'
app.Put("/users/{id:int}", func(ctx iris.Context) {
var user Users
if err := ctx.ReadJSON(&user); err != nil {
ctx.WriteString("Invalid user.")
}
parmid := ctx.Params().Get("id")
id, err := strconv.ParseInt(parmid, 10, 64)
if err != nil {
ctx.Writef("Invalid id, %s", err)
}
affected, err := orm.ID(id).AllCols().Update(&user)
if err != nil {
ctx.Writef("user updated failed, %s", err)
} else {
ctx.Writef("user updated: %d", affected)
}
})
app.Run(iris.Addr(config.ServerHost), iris.WithoutServerError(iris.ErrServerClosed))
}