cmd/server/main.go

@@ -1,7 +1,7 @@
 package main
 
-import "vegan-barcode/internal/api"
+import "vegan-barcode/internal/application"
 
 func main() {
-	api.Start()
+	application.Start()
 }

internal/application/handlers.go

@@ -7,9 +7,13 @@ import (
 	"github.com/gin-gonic/gin"
 )
 
+func (a *Application) TestHandler(c *gin.Context) {
+	c.JSON(http.StatusOK, gin.H{"message": "Hello World!"})
+}
+
 func (a *Application) GetClaimsHandler(c *gin.Context) {
-	system := c.Query("system")
-	barcode := c.Query("barcode")
+	system := c.Param("system")
+	barcode := c.Param("barcode")
 
 	productClaims, err := a.GetClaims(system, barcode)
 	if err != nil {
@@ -20,11 +24,21 @@ func (a *Application) GetClaimsHandler(c *gin.Context) {
 }
 
 func (a *Application) PostClaimHandler(c *gin.Context) {
-	system := c.Query("system")
-	barcode := c.Query("barcode")
+	system := c.Param("system")
+	barcode := c.Param("barcode")
 
 	var requestBody models.UserClaimForm
-	c.BindJSON(&requestBody)
+	err := c.BindJSON(&requestBody)
+	if err != nil {
+		c.JSON(http.StatusBadRequest, nil)
+		return
+	}
 
-	a.CreateClaim(system, barcode, requestBody)
+	claim, err := a.CreateClaim(system, barcode, requestBody)
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+
+	c.JSON(http.StatusOK, claim)
 }

internal/application/routes.go

@@ -8,10 +8,10 @@ func (application *Application) bindRoutes() {
 
 	router := gin.Default()
 
-	router.Group("/claims")
-	{
-		router.GET("/:barcode", application.GetClaimsHandler)
-	}
+	router.GET("/", application.TestHandler)
+
+	router.GET("/claims/:system/:barcode", application.GetClaimsHandler)
+	router.POST("/claims/:system/:barcode", application.PostClaimHandler)
 
 	router.Run("localhost:8080")
 }

internal/application/services.go

@@ -2,39 +2,39 @@ package application
 
 import (
 	"errors"
+	"vegan-barcode/internal/database"
 	"vegan-barcode/internal/models"
 )
 
 func (a *Application) GetClaims(system string, barcode string) (*models.ProductClaims, error) {
-	id, err := a.db.FindProductIDByBarcode(system, barcode)
+	product, err := a.db.FindProductByBarcode(system, barcode)
 	if err != nil {
 		return nil, err
 	}
-	if id == -1 {
+	if product == nil {
 		return nil, errors.New("Product not found")
 	}
 
-	claims, err := a.db.FindClaimsByProductID(id)
+	claims, err := a.db.FindClaimsByProductID(product.Id)
 	if err != nil {
 		return nil, err
 	}
 
-	return &models.ProductClaims{Id: id, Claims: claims}, nil
+	return &models.ProductClaims{Id: product.Id, Claims: claims}, nil
 }
 
-func (a *Application) CreateClaim(system string, barcode string, form models.UserClaimForm) {
-	id, err := a.db.FindProductIDByBarcode(system, barcode)
+func (a *Application) CreateClaim(system string, barcode string, form models.UserClaimForm) (*database.UserClaim, error) {
+	product, err := a.db.FindProductByBarcode(system, barcode)
 	if err != nil {
 		return nil, err
 	}
 	// no product, create new
-	if id == -1 {
-		product, err := a.db.CreateProduct()
+	if product == nil {
+		product, err = a.db.CreateProduct(system, barcode)
 		if err != nil {
 			return nil, err
 		}
-		id = product.ID
 	}
 
-	claim, err := a.db.CreateUserClaim(id, form)
+	return a.db.CreateUserClaim(product.Id, form)
 }

internal/database/products.go

@@ -7,18 +7,20 @@ import (
 	"github.com/vingarcia/ksql"
 )
 
-func (d *Database) FindProductIDByBarcode(system string, barcode string) (id int, err error) {
+func (d *Database) FindProductByBarcode(system string, barcode string) (*Product, error) {
 
 	ctx := context.Background()
+	ctx = ksql.InjectLogger(ctx, ksql.Logger)
 
-	err = d.db.QueryOne(ctx, &id, "SELECT id FROM products WHERE system = ? AND barcode = ?", system, barcode)
+	var product Product
+	err := d.db.QueryOne(ctx, &product, "FROM products WHERE system = $1 AND barcode = $2", system, barcode)
 	if err == ksql.ErrRecordNotFound {
-		return -1, nil
+		return nil, nil
 	}
 	if err != nil {
-		return -1, err
+		return nil, err
 	}
-	return
+	return &product, nil
 }
 
 func (d *Database) CreateProduct(system string, barcode string) (*Product, error) {

internal/models/models.go

@@ -31,7 +31,7 @@ const (
 type EvidenceType int
 
 const (
-	ManufactureWebsite EvidenceType = iota
+	ManufacturerWebsite EvidenceType = iota
 	IngredientsList
 )