adding rest-api

2026-07-08 06:59:16 -05:00
parent 0ef9b90bcd
commit 60c2f20fea
20 changed files with 524 additions and 0 deletions
--- a/rest-api/api-test/create-event.http
+++ b/rest-api/api-test/create-event.http
@@ -0,0 +1,9 @@
+POST http://localhost:8080/events
+content-type: application/json
+
+{
+    "name": "Test event",
+    "description": "A test event",
+    "location": "A test location",
+    "dateTime": "2025-01-01T15:30:00.000Z"
+}
--- a/rest-api/api-test/create-user.http
+++ b/rest-api/api-test/create-user.http
@@ -0,0 +1,7 @@
+POST http://localhost:8080/signup
+content-type: application/json
+
+{
+  "email": "test@example.com",
+  "password": "test"
+}
--- a/rest-api/api-test/delete-event.http
+++ b/rest-api/api-test/delete-event.http
@@ -0,0 +1 @@
+DELETE http://localhost:8080/events/1
--- a/rest-api/api-test/get-events.http
+++ b/rest-api/api-test/get-events.http
@@ -0,0 +1 @@
+GET http://localhost:8080/events
--- a/rest-api/api-test/get-single-event.http
+++ b/rest-api/api-test/get-single-event.http
@@ -0,0 +1 @@
+GET http://localhost:8080/events/1
--- a/rest-api/api-test/update-event.http
+++ b/rest-api/api-test/update-event.http
@@ -0,0 +1,9 @@
+PUT http://localhost:8080/events/1
+content-type: application/json
+
+{
+  "name": "Updated test event",
+  "description": "A test event",
+  "location": "Test location (updated)",
+  "dateTime": "2025-01-01T15:30:00.000Z"
+}
--- a/rest-api/api.db
+++ b/rest-api/api.db
--- a/rest-api/db/db.go
+++ b/rest-api/db/db.go
@@ -0,0 +1,57 @@
+package db
+
+import (
+	"database/sql"
+
+	_ "github.com/mattn/go-sqlite3"
+)
+
+var DB *sql.DB
+
+func InitDB() {
+	var err error
+	DB, err = sql.Open("sqlite3", "api.db")
+
+	if err != nil {
+		panic("Could not connect to database")
+	}
+
+	DB.SetMaxOpenConns(10)
+	DB.SetMaxIdleConns(5)
+
+	createTables()
+}
+
+func createTables() {
+	createUsersTable := `
+	CREATE TABLE IF NOT EXISTS users (
+		id INTEGER PRIMARY KEY AUTOINCREMENT,
+		email TEXT NOT NULL UNIQUE,
+		password TEXT NOT NULL
+	)
+	`
+
+	_, err := DB.Exec(createUsersTable)
+
+	if err != nil {
+		panic("Could not create users table.")
+	}
+
+	createEventsTable := `
+	CREATE TABLE IF NOT EXISTS events (
+		id INTEGER PRIMARY KEY AUTOINCREMENT,
+		name TEXT NOT NULL,
+		description TEXT NOT NULL,
+		location TEXT NOT NULL,
+		dateTime DATETIME NOT NULL,
+		user_id INTEGER,
+		FOREIGN KEY(user_id) REFERENCES users(id)
+	)
+	`
+
+	_, err = DB.Exec(createEventsTable)
+
+	if err != nil {
+		panic("Could not create table")
+	}
+}
--- a/rest-api/go.mod
+++ b/rest-api/go.mod
@@ -0,0 +1,37 @@
+module example.com/rest-api
+
+go 1.25.0
+
+require (
+	github.com/bytedance/gopkg v0.1.4 // indirect
+	github.com/bytedance/sonic v1.15.2 // indirect
+	github.com/bytedance/sonic/loader v0.5.1 // indirect
+	github.com/cloudwego/base64x v0.1.7 // indirect
+	github.com/gabriel-vasile/mimetype v1.4.13 // indirect
+	github.com/gin-contrib/sse v1.1.1 // indirect
+	github.com/gin-gonic/gin v1.12.0 // indirect
+	github.com/go-playground/locales v0.14.1 // indirect
+	github.com/go-playground/universal-translator v0.18.1 // indirect
+	github.com/go-playground/validator/v10 v10.30.3 // indirect
+	github.com/goccy/go-json v0.10.6 // indirect
+	github.com/goccy/go-yaml v1.19.2 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/klauspost/cpuid/v2 v2.4.0 // indirect
+	github.com/leodido/go-urn v1.4.0 // indirect
+	github.com/mattn/go-isatty v0.0.22 // indirect
+	github.com/mattn/go-sqlite3 v1.14.47 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/pelletier/go-toml/v2 v2.4.2 // indirect
+	github.com/quic-go/qpack v0.6.0 // indirect
+	github.com/quic-go/quic-go v0.60.0 // indirect
+	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
+	github.com/ugorji/go/codec v1.3.1 // indirect
+	go.mongodb.org/mongo-driver/v2 v2.7.0 // indirect
+	golang.org/x/arch v0.28.0 // indirect
+	golang.org/x/crypto v0.53.0 // indirect
+	golang.org/x/net v0.56.0 // indirect
+	golang.org/x/sys v0.46.0 // indirect
+	golang.org/x/text v0.38.0 // indirect
+	google.golang.org/protobuf v1.36.11 // indirect
+)
--- a/rest-api/go.sum
+++ b/rest-api/go.sum
@@ -0,0 +1,79 @@
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--- a/rest-api/main.go
+++ b/rest-api/main.go
@@ -0,0 +1,16 @@
+package main
+
+import (
+	"example.com/rest-api/db"
+	"example.com/rest-api/routes"
+	"github.com/gin-gonic/gin"
+)
+
+func main() {
+	db.InitDB()
+	server := gin.Default()
+
+	routes.RegisterRoutes(server)
+
+	server.Run(":8080")
+}
--- a/rest-api/main.txt
+++ b/rest-api/main.txt
--- a/rest-api/models/event.go
+++ b/rest-api/models/event.go
@@ -0,0 +1,107 @@
+package models
+
+import (
+	"time"
+
+	"example.com/rest-api/db"
+)
+
+type Event struct {
+	ID          int64
+	Name        string    `binding:"required"`
+	Description string    `binding:"required"`
+	Location    string    `binding:"required"`
+	DateTime    time.Time `binding:"required"`
+	UserID      int
+}
+
+var events []Event = []Event{}
+
+func (e Event) Save() error {
+	query := `
+	INSERT INTO events(name, description, location, dateTime, user_id)
+	VALUES (?, ?, ?, ?, ?)`
+	stmt, err := db.DB.Prepare(query)
+
+	if err != nil {
+		return err
+	}
+	// defer stmt.Close()
+	result, err := stmt.Exec(e.Name, e.Description, e.Location, e.DateTime, e.UserID)
+	if err != nil {
+		return err
+	}
+	id, err := result.LastInsertId()
+	e.ID = id
+	return err
+}
+
+func GetAllEvents() ([]Event, error) {
+	query := "SELECT * FROM events"
+	rows, err := db.DB.Query(query)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	var events []Event
+
+	for rows.Next() {
+		var event Event
+		err := rows.Scan(&event.ID, &event.Name, &event.Description, &event.Location, &event.DateTime, &event.UserID)
+
+		if err != nil {
+			return nil, err
+		}
+
+		events = append(events, event)
+	}
+
+	return events, nil
+}
+
+func GetEventByID(id int64) (*Event, error) {
+	query := "SELECT * FROM events WHERE id = ?"
+	row := db.DB.QueryRow(query, id)
+
+	var event Event
+	err := row.Scan(&event.ID, &event.Name, &event.Description, &event.Location, &event.DateTime, &event.UserID)
+	if err != nil {
+		return nil, err
+	}
+
+	return &event, nil
+}
+
+func (event Event) Update() error {
+	query := `
+	UPDATE events
+	SET name = ?, description = ?, location = ?, dateTime = ?
+	WHERE id = ?
+	`
+	stmt, err := db.DB.Prepare(query)
+
+	if err != nil {
+		return err
+	}
+
+	defer stmt.Close()
+
+	_, err = stmt.Exec(event.Name, event.Description, event.Location, event.DateTime, event.UserID)
+	return err
+}
+
+func (event Event) Delete() error {
+	query := "DELETE FROM events WHERE id = ?"
+	stmt, err := db.DB.Prepare(query)
+
+	if err != nil {
+		return err
+	}
+
+	defer stmt.Close()
+
+	_, err = stmt.Exec(event.ID)
+
+	return err
+}
--- a/rest-api/models/user.go
+++ b/rest-api/models/user.go
@@ -0,0 +1,40 @@
+package models
+
+import (
+	"example.com/rest-api/db"
+	"example.com/rest-api/utils"
+)
+
+type User struct {
+	ID       int64
+	Email    string `binding:"required"`
+	Password string `binding:"required"`
+}
+
+func (u User) Save() error {
+	query := "INSERT INTO users(email, password) VALUES (?, ?)"
+	stmt, err := db.DB.Prepare(query)
+
+	if err != nil {
+		return err
+	}
+
+	defer stmt.Close()
+
+	hashedPassword, err := utils.HashPassword(u.Password)
+
+	if err != nil {
+		return err
+	}
+
+	result, err := stmt.Exec(u.Email, hashedPassword)
+
+	if err != nil {
+		return err
+	}
+
+	userId, err := result.LastInsertId()
+
+	u.ID = userId
+	return err
+}
--- a/rest-api/routes/events.go
+++ b/rest-api/routes/events.go
@@ -0,0 +1,110 @@
+package routes
+
+import (
+	"net/http"
+	"strconv"
+
+	"example.com/rest-api/models"
+	"github.com/gin-gonic/gin"
+)
+
+func getEvents(context *gin.Context) {
+	events, err := models.GetAllEvents()
+	if err != nil {
+		context.JSON(http.StatusInternalServerError, gin.H{"message": "Could not fetch events."})
+	}
+	context.JSON(http.StatusOK, events)
+}
+
+func getEvent(context *gin.Context) {
+	eventId, err := strconv.ParseInt(context.Param("id"), 10, 64)
+	if err != nil {
+		context.JSON(http.StatusBadRequest, gin.H{"message": "Could not parse event id."})
+		return
+	}
+
+	event, err := models.GetEventByID(eventId)
+
+	if err != nil {
+		context.JSON(http.StatusInternalServerError, gin.H{"message": "Could not fetch event."})
+		return
+	}
+
+	context.JSON(http.StatusOK, event)
+}
+
+func createEvent(context *gin.Context) {
+	var event models.Event
+	err := context.ShouldBindJSON(&event)
+
+	if err != nil {
+		context.JSON(http.StatusBadRequest, gin.H{"message": "Could not parse request data"})
+		return
+	}
+
+	event.ID = 1
+	event.UserID = 1
+
+	err = event.Save()
+
+	if err != nil {
+		context.JSON(http.StatusInternalServerError, gin.H{"message": "Could not create event."})
+	}
+
+	context.JSON(http.StatusCreated, gin.H{"message": "Event created!", "event": event})
+}
+
+func updateEvent(context *gin.Context) {
+	eventId, err := strconv.ParseInt(context.Param("id"), 10, 64)
+	if err != nil {
+		context.JSON(http.StatusBadRequest, gin.H{"message": "Could not parse event id."})
+		return
+	}
+
+	_, err = models.GetEventByID(eventId)
+
+	if err != nil {
+		context.JSON(http.StatusInternalServerError, gin.H{"message": "Could not fetch the event."})
+		return
+	}
+
+	var updatedEvent models.Event
+	err = context.ShouldBindJSON(&updatedEvent)
+
+	if err != nil {
+		context.JSON(http.StatusBadRequest, gin.H{"message": "Could not parse request data"})
+		return
+	}
+
+	updatedEvent.ID = eventId
+	err = updatedEvent.Update()
+	if err != nil {
+		context.JSON(http.StatusInternalServerError, gin.H{"message": "Could not update the event."})
+		return
+	}
+	context.JSON(http.StatusOK, gin.H{"message": "Event updated successfully."})
+}
+
+func deleteEvent(context *gin.Context) {
+	eventId, err := strconv.ParseInt(context.Param("id"), 10, 64)
+	if err != nil {
+		context.JSON(http.StatusBadRequest, gin.H{"message": "Could not parse event id."})
+		return
+	}
+
+	event, err := models.GetEventByID(eventId)
+
+	if err != nil {
+		context.JSON(http.StatusInternalServerError, gin.H{"message": "Could not fetch the event."})
+		return
+	}
+
+	err = event.Delete()
+
+	if err != nil {
+		context.JSON(http.StatusInternalServerError, gin.H{"message": "Could not delete the event."})
+		return
+	}
+
+	context.JSON(http.StatusOK, gin.H{"message": "Event deleted successfully."})
+}
--- a/rest-api/routes/routes.go
+++ b/rest-api/routes/routes.go
@@ -0,0 +1,12 @@
+package routes
+
+import "github.com/gin-gonic/gin"
+
+func RegisterRoutes(server *gin.Engine) {
+	server.GET("/events", getEvents)
+	server.GET("/events/:id", getEvent)
+	server.POST("/events", createEvent)
+	server.PUT("/events/:id", updateEvent)
+	server.DELETE("/events/:id", deleteEvent)
+	server.POST("/signup", signup)
+}
--- a/rest-api/routes/users.go
+++ b/rest-api/routes/users.go
@@ -0,0 +1,28 @@
+package routes
+
+import (
+	"net/http"
+
+	"example.com/rest-api/models"
+	"github.com/gin-gonic/gin"
+)
+
+func signup(context *gin.Context) {
+	var user models.User
+
+	err := context.ShouldBindJSON(&user)
+
+	if err != nil {
+		context.JSON(http.StatusBadRequest, gin.H{"message": "Could not parse request data."})
+		return
+	}
+
+	err = user.Save()
+
+	if err != nil {
+		context.JSON(http.StatusInternalServerError, gin.H{"message": "Could not save user."})
+		return
+	}
+
+	context.JSON(http.StatusCreated, gin.H{"message": "User created successfully"})
+}
--- a/rest-api/utils/hash.go
+++ b/rest-api/utils/hash.go
@@ -0,0 +1,8 @@
+package utils
+
+import "golang.org/x/crypto/bcrypt"
+
+func HashPassword(password string) (string, error) {
+	bytes, err := bcrypt.GenerateFromPassword([]byte(password), 14)
+	return string(bytes), err
+}