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https://github.com/supanadit/geo-smart-system.git
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First Initialize
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35
README.md
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README.md
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# GEO Smart System
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This is Tile38 Implementation for Golang, and also this software has a purpose to be real time tracking system
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simulation such as Uber, Gojek, Grab, etc. The main feature of this software is that it must **lightweight**,
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**less memory usage**, and **fast**, and for the live map it will integration with [Geo Smart Map](https://github.com/supanadit/geosmartmap)
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## Requirements
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- [Tile38 Server](https://tile38.com/)
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- [Golang](https://golang.org/)
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## Todo
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- Work with Socket.IO (OK)
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- Connect With Tile38 (OK)
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- CORS Support (OK)
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- Get Data From Tile38 by Command SCAN (OK)
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- Set HOOK by GeoFencing Trigger
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- Receive New Point by HTTP GET also By Socket.IO and Trigger by Socket.IO Only
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- Send Realtime Point by Socket.IO
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- Support Nearby Trigger Feature
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- Support Enter Area Trigger Feature
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- Support Exit Area Trigger Feature
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## License
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Copyright 2019 Supan Adit Pratama
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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75
main.go
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main.go
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package main
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import (
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"fmt"
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"github.com/gin-contrib/cors"
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"github.com/gin-gonic/gin"
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"github.com/go-redis/redis"
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socketio "github.com/googollee/go-socket.io"
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"github.com/supanadit/geosmartsystem/model"
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"log"
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)
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func main() {
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// Tile38
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client := redis.NewClient(&redis.Options{
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Addr: "localhost:9851",
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})
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router := gin.Default()
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router.Use(cors.New(cors.Config{
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AllowOrigins: []string{"http://localhost:4200"},
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AllowMethods: []string{"PUT", "PATCH", "POST", "GET"},
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AllowHeaders: []string{"Origin"},
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ExposeHeaders: []string{"Content-Length"},
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AllowWebSockets: true,
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AllowCredentials: true,
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AllowWildcard: true,
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}))
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router.GET("/point", func(c *gin.Context) {
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data, _ := model.FromScan(client, "sales")
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c.JSON(200, data)
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})
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// Socket.IO Start
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server, err := socketio.NewServer(nil)
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if err != nil {
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log.Fatal(err)
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}
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server.OnConnect("/", func(s socketio.Conn) error {
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s.SetContext("")
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fmt.Println("Connected:", s.ID())
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return nil
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})
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server.OnEvent("/", "message", func(s socketio.Conn, msg string) {
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s.Emit("message", "have "+msg)
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})
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server.OnEvent("/", "bye", func(s socketio.Conn) string {
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last := s.Context().(string)
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s.Emit("bye", last)
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_ = s.Close()
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return last
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})
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server.OnError("/", func(e error) {
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fmt.Println("Meet Error:", e)
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})
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server.OnDisconnect("/", func(s socketio.Conn, msg string) {
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fmt.Println("Closed", msg)
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})
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router.GET("/socket.io/", gin.WrapH(server))
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router.POST("/socket.io/", gin.WrapH(server))
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router.Handle("WS", "/socket.io/", WebSocketIO(server))
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router.Handle("WSS", "/socket.io/", WebSocketIO(server))
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router.GET("/ws", func(c *gin.Context) {
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server.ServeHTTP(c.Writer, c.Request)
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})
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go server.Serve()
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defer server.Close()
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// End Socket.IO
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_ = router.Run()
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}
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func WebSocketIO(server *socketio.Server) gin.HandlerFunc {
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return func(c *gin.Context) {
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server.ServeHTTP(c.Writer, c.Request)
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}
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}
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50
model/tile38data.go
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model/tile38data.go
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package model
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import (
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"encoding/json"
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"github.com/go-redis/redis"
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"github.com/tidwall/gjson"
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"strconv"
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)
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type Tile38Data struct {
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Object []Tile38Object `json:"data"`
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}
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func FromScan(client *redis.Client, name string) (Tile38Data, error) {
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var tile38Data Tile38Data
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var err error
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v, err := client.Do("SCAN", name).Result()
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if err == nil {
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data, err := json.Marshal(v)
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if err == nil {
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jsonConverted := `{"data":` + string(data) + `}`
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lengthData := gjson.Get(jsonConverted, "data.1.#")
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if lengthData.Int() != 0 {
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var x int64 = 0
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for x = 0; x < lengthData.Int(); x++ {
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name := "data.1." + strconv.FormatInt(int64(x), 10)
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idName := name + ".0"
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contentName := name + ".1"
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id := gjson.Get(jsonConverted, idName)
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content := gjson.Get(jsonConverted, contentName)
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var tile38Object Tile38Object
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var tile38SubObject Tile38SubObject
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err = json.Unmarshal([]byte(content.String()), &tile38SubObject)
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if err == nil {
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tile38Object.Id = id.String()
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tile38Object.Object = tile38SubObject
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tile38Data.Object = append(tile38Data.Object, tile38Object)
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}
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}
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}
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}
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}
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return tile38Data, err
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}
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func (tile38Data Tile38Data) ToJsonString() (string, error) {
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var err error
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data, err := json.Marshal(tile38Data)
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return string(data), err
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}
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6
model/tile38object.go
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6
model/tile38object.go
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package model
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type Tile38Object struct {
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Id string `json:"id"`
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Object Tile38SubObject `json:"object"`
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}
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14
model/tile38subobject.go
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model/tile38subobject.go
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package model
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type Tile38SubObject struct {
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Type string `json:"type"`
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Coordinates []float64 `json:"coordinates"`
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}
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func (tile38SubObject Tile38SubObject) Lng() float64 {
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return tile38SubObject.Coordinates[0]
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}
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func (tile38SubObject Tile38SubObject) Lat() float64 {
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return tile38SubObject.Coordinates[1]
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}
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