First Commit

.idea/.gitignore

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+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml

.idea/go-location-logger.iml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module type="WEB_MODULE" version="4">
+  <component name="Go" enabled="true" />
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

.idea/modules.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/go-location-logger.iml" filepath="$PROJECT_DIR$/.idea/go-location-logger.iml" />
+    </modules>
+  </component>
+</project>

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+  </component>
+</project>

Dockerfile

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+# Use an official Golang runtime as a parent image
+FROM golang:1.21.4
+
+# Set the working directory in the container
+WORKDIR /go/src/app
+
+# Copy the local package files to the container's workspace
+COPY ../../Downloads .
+
+# Download and install any required third-party dependencies into the container.
+#RUN go get -u github.com/gorilla/mux
+RUN go get -u github.com/go-sql-driver/mysql
+RUN go get -u github.com/sirupsen/logrus
+
+# Build the Go application
+RUN go build -o main .
+
+# Expose port 8080 to the outside world
+EXPOSE 8080
+
+# Command to run the application with environment variables
+CMD ["./main"]

README.md

@@ -1,2 +1,98 @@
-# go-location-logger
+# Go Location Logger
 
+A simple Go program that handles location data sent via HTTP POST requests and inserts it into a MySQL database.
+
+## Features
+
+- Handles JSON payloads containing location data.
+- Inserts location data into a MySQL database.
+- Supports parameters `device` and `user` in HTTP requests.
+
+## Prerequisites
+
+Before running the program, ensure you have the following:
+
+- Go installed: [https://golang.org/doc/install](https://golang.org/doc/install)
+- Docker and Docker Compose installed: [https://docs.docker.com/get-docker/](https://docs.docker.com/get-docker/)
+
+## Installation
+
+1. Clone the repository:
+
+    ```bash
+    git clone https://github.com/yourusername/go-location-logger.git
+    ```
+
+2. Navigate to the project directory:
+
+    ```bash
+    cd go-location-logger
+    ```
+
+3. Install dependencies:
+
+    ```bash
+    go get -u github.com/sirupsen/logrus
+    ```
+
+4. Create an `.env` file in the project root with your environment variables:
+
+    ```plaintext
+    # .env
+
+    DB_USER=your_db_user
+    DB_PASSWORD=your_db_password
+    DB_HOST=your_db_host
+    DB_PORT=your_db_port
+    DB_NAME=your_db_name
+    ```
+
+## Usage
+
+### Running with Docker Compose
+
+1. Create a Docker network:
+
+    ```bash
+    docker network create app-network
+    ```
+
+2. Use Docker Compose to start the services:
+
+    ```bash
+    docker-compose up -d
+    ```
+
+3. Access your Go application at `http://localhost:8080`. Make HTTP POST requests as described in the README.md.
+
+4. To stop the services, run:
+
+    ```bash
+    docker-compose down
+    ```
+
+### Running without Docker
+
+If you prefer not to use Docker, you can run the Go application directly using:
+
+```bash
+go run main.go
+```
+
+The server will start on `http://localhost:8080`.
+
+Make a POST request with a JSON payload to `http://localhost:8080/?device=your_device&user=your_user`. The JSON payload should include location data.
+
+Example:
+
+```bash
+curl -X POST -d '{"_type": "location", "tst": 1637650367, "lat": 37.7749, "lon": -122.4194, "tid": "123", "batt": 90, "vac": 220}' http://localhost:8080/?device=your_device&user=your_user
+```
+
+## Contributing
+
+Feel free to open issues or submit pull requests.
+
+## License
+
+This project is licensed under the MIT License - see the [LICENSE.md](LICENSE.md) file for details.

docker-compose.yml

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+version: "3.9"
+
+services:
+
+# Go application service
+  go-app:
+    build:
+      context: go/.
+      args:
+        - GO111MODULE=on
+    ports:
+      - "8080:8080"
+    depends_on:
+      - db
+    environment:
+      - DB_HOST=db
+      - DB_PORT=3306
+      - DB_USER=root
+      - DB_PASSWORD=owntracks
+      - DB_NAME=owntracks
+
+    restart: always
+    networks:
+      default:
+
+  db:    
+    image: mariadb  
+    volumes: 
+      - ./mysql-data:/var/lib/mysql
+    environment:  
+      MYSQL_ROOT_PASSWORD: owntracks
+      MYSQL_DATABASE: owntracks
+    networks:
+      default:

go.mod

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+module go-app
+
+go 1.21.4
+
+require (
+	github.com/go-sql-driver/mysql v1.7.1
+	github.com/sirupsen/logrus v1.9.3
+)
+
+require golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8 // indirect

go.sum

@@ -0,0 +1,17 @@
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/go-sql-driver/mysql v1.7.1 h1:lUIinVbN1DY0xBg0eMOzmmtGoHwWBbvnWubQUrtU8EI=
+github.com/go-sql-driver/mysql v1.7.1/go.mod h1:OXbVy3sEdcQ2Doequ6Z5BW6fXNQTmx+9S1MCJN5yJMI=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/sirupsen/logrus v1.9.3 h1:dueUQJ1C2q9oE3F7wvmSGAaVtTmUizReu6fjN8uqzbQ=
+github.com/sirupsen/logrus v1.9.3/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVsIT4qYEQ=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
+github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8 h1:0A+M6Uqn+Eje4kHMK80dtF3JCXC4ykBgQG4Fe06QRhQ=
+golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

main.go

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+package main
+
+import (
+	"database/sql"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"os"
+	"time"
+
+	_ "github.com/go-sql-driver/mysql"
+	"github.com/sirupsen/logrus"
+)
+
+var log = logrus.New()
+
+// Location represents the JSON payload structure
+type Location struct {
+	Type string  `json:"_type"`
+	Tst  int64   `json:"tst"`
+	Lat  float64 `json:"lat"`
+	Lon  float64 `json:"lon"`
+	Tid  string  `json:"tid"`
+	Batt int     `json:"batt"`
+	Vac  int     `json:"vac"`
+}
+
+func init() {
+	// Log as JSON instead of the default ASCII formatter.
+	log.SetFormatter(&logrus.JSONFormatter{})
+
+	// Output to stdout instead of the default stderr
+	// Can be any io.Writer, see below for File example
+	log.SetOutput(os.Stdout)
+
+	// Only log the warning severity or above.
+	log.SetLevel(logrus.InfoLevel)
+}
+
+func main() {
+	log.Info("Server started. Listening on :8080")
+
+	http.HandleFunc("/", handleRequest)
+	http.ListenAndServe(":8080", nil)
+}
+
+func handleRequest(w http.ResponseWriter, r *http.Request) {
+	log.Info("Handling request")
+
+	if r.Method != http.MethodPost {
+		log.Warn("Method not allowed")
+		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
+		return
+	}
+
+	// Parse query parameters
+	device := r.URL.Query().Get("d")
+	user := r.URL.Query().Get("u")
+
+	log.Infof("Received request with device=%s and user=%s", device, user)
+
+	var loc Location
+	decoder := json.NewDecoder(r.Body)
+	err := decoder.Decode(&loc)
+	if err != nil {
+		log.Error("Invalid JSON payload: ", err)
+		http.Error(w, "Invalid JSON payload", http.StatusBadRequest)
+		return
+	}
+
+	log.Infof("Received JSON payload: %+v", loc)
+
+	if loc.Type == "location" {
+		db, err := sql.Open("mysql", getDBConnectionString())
+		if err != nil {
+			log.Error("Database connection error: ", err)
+			http.Error(w, fmt.Sprintf("Database connection error: %v", err), http.StatusInternalServerError)
+			return
+		}
+		defer db.Close()
+
+		dt := time.Unix(loc.Tst, 0).Format("2006-01-02 15:04:05")
+
+		_, err = db.Exec("INSERT INTO locations (dt, tid, lat, lon, batt, vac, device, user) VALUES (?, ?, ?, ?, ?, ?, ?, ?)",
+			dt, loc.Tid, loc.Lat, loc.Lon, loc.Batt, loc.Vac, device, user)
+		if err != nil {
+			log.Error("Database insertion error: ", err)
+			http.Error(w, fmt.Sprintf("Database insertion error: %v", err), http.StatusInternalServerError)
+			return
+		}
+
+		log.Info("Location data inserted into the database")
+	}
+
+	response := make(map[string]interface{})
+	// Optionally add objects to return to the app (e.g., friends or cards)
+	json.NewEncoder(w).Encode(response)
+
+	log.Info("Request handled successfully")
+}
+
+func getDBConnectionString() string {
+	user := os.Getenv("DB_USER")
+	password := os.Getenv("DB_PASSWORD")
+	host := os.Getenv("DB_HOST")
+	port := os.Getenv("DB_PORT")
+	dbName := os.Getenv("DB_NAME")
+
+	return fmt.Sprintf("%s:%s@tcp(%s:%s)/%s", user, password, host, port, dbName)
+}