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Diffstat (limited to 'backend/main.go')
-rw-r--r--backend/main.go218
1 files changed, 59 insertions, 159 deletions
diff --git a/backend/main.go b/backend/main.go
index 96bb824..0bd5ebf 100644
--- a/backend/main.go
+++ b/backend/main.go
@@ -20,6 +20,28 @@ type APIResponse struct {
Data interface{}
}
+func MakeAPIResponse(status int, msg string, data interface{}) *APIResponse {
+ return &APIResponse{
+ Status: APIStatus{
+ Code: status,
+ Msg: msg,
+ },
+ Data: data,
+ }
+}
+
+func sendResponse(w http.ResponseWriter, code int, msg string, data interface{}) {
+ w.Header().Set("Access-Control-Allow-Origin", "*") //Enable CORS
+ w.Header().Set("Content-Type",
+ "application/json; charset=UTF-8")
+
+ w.WriteHeader(code)
+
+ resp := MakeAPIResponse(code, msg, data)
+
+ if err := json.NewEncoder(w).Encode(resp); err != nil {
+ panic(err)
+ }
}
func RecipeList(w http.ResponseWriter, r *http.Request) {
@@ -37,18 +59,8 @@ func RecipeList(w http.ResponseWriter, r *http.Request) {
}
}
- resp := APIResponse{
- Status: APIStatus{Code: 200, Msg: "Successful Request"},
- Data: ids,
- }
+ sendResponse(w, http.StatusOK, "Successful Request", ids)
- w.Header().Set("Content-Type",
- "application/json; charset=UTF-8")
- w.WriteHeader(http.StatusOK)
- if err := json.NewEncoder(w).Encode(resp); err != nil {
- panic(err)
- }
- return
} else if r.Method == "POST" {
var recipe *Recipe
@@ -65,103 +77,46 @@ func RecipeList(w http.ResponseWriter, r *http.Request) {
err = json.Unmarshal(body, &recipe)
if err != nil {
fmt.Println(err)
- w.WriteHeader(http.StatusUnprocessableEntity)
- w.Header().Set("Content-Type",
- "application/json; charset=UTF-8")
- resp := APIResponse{
- Status: APIStatus{
- Code: http.StatusUnprocessableEntity,
- Msg: "Invalid Recipe"},
- }
-
- err := json.NewEncoder(w).Encode(resp)
- if err != nil {
- panic(err)
- }
+ sendResponse(w, http.StatusUnprocessableEntity,
+ "Invalid Recipe", nil)
return
}
err = AddRecipeDB(recipe, db)
if err != nil {
fmt.Println(err)
- resp := APIResponse{
- Status: APIStatus{Code: http.StatusBadRequest,
- Msg: "Recipe could not be added"},
- Data: recipe,
- }
-
- w.Header().Set("Content-Type",
- "application/json; charset=UTF-8")
- w.WriteHeader(http.StatusBadRequest)
- if err := json.NewEncoder(w).Encode(resp); err != nil {
- panic(err)
- }
+ sendResponse(w, http.StatusBadRequest,
+ "Recipe could not be added", recipe)
return
}
- resp := APIResponse{
- Status: APIStatus{Code: http.StatusCreated,
- Msg: "Recipe added successfully"},
- Data: recipe,
- }
-
- w.Header().Set("Content-Type", "application/json; charset=UTF-8")
- w.WriteHeader(http.StatusCreated)
- if err := json.NewEncoder(w).Encode(resp); err != nil {
- panic(err)
- }
-
- return
- }
+ sendResponse(w, http.StatusCreated, "Recipe added successfully",
+ recipe)
- resp := APIResponse{
- Status: APIStatus{Code: http.StatusMethodNotAllowed,
- Msg: "Invalid method"},
- Data: nil,
- }
+ } else {
+ sendResponse(w, http.StatusMethodNotAllowed, "Invalid method",
+ nil)
- w.Header().Set("Content-Type",
- "application/json; charset=UTF-8")
- w.WriteHeader(http.StatusMethodNotAllowed)
- if err := json.NewEncoder(w).Encode(resp); err != nil {
- panic(err)
}
}
func SingleRecipe(w http.ResponseWriter, r *http.Request) {
+ w.Header().Set("Access-Control-Allow-Origin", "*") //Enable CORS
+
recipe_id, err := strconv.Atoi(r.URL.Path[len("/recipes/"):])
if err != nil {
fmt.Println("Not a valid ID")
return
}
if r.Method == "GET" {
- var status int
- var msg string
-
recipe := RecipeFromId(recipe_id, db)
if recipe == nil {
- status = http.StatusNotFound
- msg = "Recipe not Found"
+ sendResponse(w, http.StatusNotFound, "Recipe not Found",
+ nil)
} else {
- status = http.StatusOK
- msg = "Successful"
- }
-
- resp := APIResponse{
- Status: APIStatus{Code: status, Msg: msg},
- }
-
- if status == http.StatusOK {
- resp.Data = recipe
+ sendResponse(w, http.StatusOK, "Successful", recipe)
}
- w.Header().Set("Content-Type", "application/json; charset=UTF-8")
- w.WriteHeader(http.StatusOK)
- if err := json.NewEncoder(w).Encode(resp); err != nil {
- panic(err)
- }
-
- return
} else if r.Method == "POST" {
var status int
row := db.QueryRow(`SELECT id FROM recipes WHERE id = $1`,
@@ -174,18 +129,9 @@ func SingleRecipe(w http.ResponseWriter, r *http.Request) {
} else {
status = http.StatusConflict
}
- resp := APIResponse{
- Status: APIStatus{Code: status, Msg: "Cannot add to specific resource"},
- Data: nil,
- }
- w.Header().Set("Content-Type",
- "application/json; charset=UTF-8")
- w.WriteHeader(status)
- if err := json.NewEncoder(w).Encode(resp); err != nil {
- panic(err)
- }
- return
+ sendResponse(w, status, "Cannot add to specific resource",
+ nil)
} else if r.Method == "PUT" {
var recipe *Recipe
@@ -202,16 +148,8 @@ func SingleRecipe(w http.ResponseWriter, r *http.Request) {
err = json.Unmarshal(body, &recipe)
if err != nil {
fmt.Println(err)
- w.WriteHeader(http.StatusUnprocessableEntity)
- w.Header().Set("Content-Type", "application/json; charset=UTF-8")
- resp := APIResponse{
- Status: APIStatus{
- Code: http.StatusUnprocessableEntity,
- Msg: "Invalid Recipe"},
- }
- if err := json.NewEncoder(w).Encode(resp); err != nil {
- panic(err)
- }
+ sendResponse(w, http.StatusUnprocessableEntity,
+ "Invalid Recipe", nil)
return
}
@@ -220,34 +158,15 @@ func SingleRecipe(w http.ResponseWriter, r *http.Request) {
err = UpdateRecipeDB(recipe, db)
if err != nil {
fmt.Println(err)
- resp := APIResponse{
- Status: APIStatus{Code: http.StatusBadRequest,
- Msg: "Recipe could not be updated"},
- Data: recipe,
- }
+ sendResponse(w, http.StatusBadRequest,
+ "Recipe could not be updated", recipe)
- w.Header().Set("Content-Type",
- "application/json; charset=UTF-8")
- w.WriteHeader(http.StatusBadRequest)
- if err := json.NewEncoder(w).Encode(resp); err != nil {
- panic(err)
- }
return
}
- resp := APIResponse{
- Status: APIStatus{Code: http.StatusCreated,
- Msg: "Recipe added successfully"},
- Data: recipe,
- }
-
- w.Header().Set("Content-Type", "application/json; charset=UTF-8")
- w.WriteHeader(http.StatusCreated)
- if err := json.NewEncoder(w).Encode(resp); err != nil {
- panic(err)
- }
+ sendResponse(w, http.StatusCreated, "Recipe added successfully",
+ recipe)
- return
} else if r.Method == "DELETE" {
res, err := db.Exec(`DELETE FROM recipes where id = $1`,
@@ -256,41 +175,17 @@ func SingleRecipe(w http.ResponseWriter, r *http.Request) {
panic(err)
}
- var status int
- var msg string
if ra, _ := res.RowsAffected(); ra == 0 {
- status = http.StatusNotFound
- msg = "Recipe Not found"
+ sendResponse(w, http.StatusNotFound, "Recipe Not found",
+ nil)
} else {
- status = http.StatusOK
- msg = "Recipe Deleted Successfully"
+ sendResponse(w, http.StatusOK,
+ "Recipe Deleted Successfully", nil)
}
- resp := APIResponse{
- Status: APIStatus{Code: status, Msg: msg},
- }
-
- w.Header().Set("Content-Type",
- "application/json; charset=UTF-8")
- w.WriteHeader(http.StatusOK)
- if err := json.NewEncoder(w).Encode(resp); err != nil {
- panic(err)
- }
-
- return
- }
-
- resp := APIResponse{
- Status: APIStatus{Code: http.StatusMethodNotAllowed,
- Msg: "Invalid method"},
- Data: nil,
- }
-
- w.Header().Set("Content-Type",
- "application/json; charset=UTF-8")
- w.WriteHeader(http.StatusMethodNotAllowed)
- if err := json.NewEncoder(w).Encode(resp); err != nil {
- panic(err)
+ } else {
+ sendResponse(w, http.StatusMethodNotAllowed, "Invalid method",
+ nil)
}
}
@@ -311,8 +206,13 @@ func main() {
dbinfo := fmt.Sprintf("user=%s password=%s dbname=%s sslmode=disable",
DB_USER, DB_PASSWORD, DB_NAME)
db, err = sql.Open("postgres", dbinfo)
- if err != nil || db.Ping() != nil {
- fmt.Println("Error connecting to database")
+ if err != nil {
+ panic(err)
+ }
+
+ err = db.Ping()
+ if err != nil {
+ panic(err)
}
http.HandleFunc("/recipes", RecipeList)
generated by cgit v1.1 at 2024-11-01 00:03:25 +0000