Scavenger Hunt API

Scavenger Hunt API helps the react native application, On The Hunt, communicate with the database.

Table Of Contents

• Description
• Example Code
• Technology Used
• Setting up for the Application
• Main Features
• Features in Progress
• Contact Information
• Link to Frontend Repo

Description

Scavenger Hunt API was built with Golang using gorm and mux, and a PSQL database. There are 5 tables within the API creating two many to many relationships. Each table comes with handlers to deal with the various request coming from On The Hunt. Auth was built into the app using JWT tokens and bcrypt.

Example Code

This handler takes in a Hunt List ID and several Item ids and creates a row for each one in the Selected Items table.

  func newSelectedItem(w http.ResponseWriter, r *http.Request) {
	setupResponse(&w, r)

	switch r.Method {
	case "OPTIONS":
		w.WriteHeader(http.StatusOK)
		return
	case "POST":
		reqBody, _ := ioutil.ReadAll(r.Body)

		var incomingItems IncomingItems
		json.Unmarshal(reqBody, &incomingItems)
		items := incomingItems.HuntItemIDs
		var selectedItems []SelectedItem

		for i := 0; i < len(items); i++ {
			var selectedItem SelectedItem

			selectedItem = SelectedItem{
				HuntListID: incomingItems.HuntListID,
				HuntItemID: incomingItems.HuntItemIDs[i],
			}

			db.Create(&selectedItem)

			selectedItems = append(selectedItems, selectedItem)
		}

		json.NewEncoder(w).Encode(&selectedItems)

	default:
		http.Error(w, http.StatusText(405), 405)
	}

This function generates a JWT token to be sent to a user after that successfully login or signup.

   func generateJWT() (string, error) {
	mySigningKey := []byte(os.Getenv("SECRET"))

	token := jwt.New(jwt.SigningMethodHS256)

	claims := token.Claims.(jwt.MapClaims)

	claims["authorized"] = true
	claims["user"] = time.Now().Add(time.Minute * 30).Unix()

	tokenString, err := token.SignedString(mySigningKey)

	if err != nil {
		fmt.Errorf("Something went wrong: %s", err.Error())
		return "", err
	}

	return tokenString, nil
}

Technology Used

• Go
• Gorm
• Mux
• PSQL

Main Features

• Full CRUD actions created for data manipulation
• Router built with mux
• Auth with bcrypt and JWT token

Features in Progress

• Add validations to incoming entries to ensure a clean database.

Contact Information

Kyle Trahan

Link to Frontend Repo

https://github.com/ktrahan2/scavenger-hunt-frontend