Merge pull request #12 from tuckerevans/REST-service

Backend REST Service implementation

13 files changed, 128 insertions, 70 deletions

diff --git a/backend/main.go b/backend/main.go
index 0bd5ebf..001a5cb 100644
--- a/backend/main.go
+++ b/backend/main.go
@@ -93,6 +93,11 @@ func RecipeList(w http.ResponseWriter, r *http.Request) {
 		sendResponse(w, http.StatusCreated, "Recipe added successfully",
 			recipe)
 
+	} else if r.Method == "OPTIONS" {
+
+		w.Header().Set("Access-Control-Allow-Methods", "POST, GET, OPTIONS") //Enable CORS
+		w.Header().Set("Access-Control-Allow-Headers", "Content-Type")       //Enable CORS
+		sendResponse(w, http.StatusOK, "Set Allowed Methods CORS", nil)
 	} else {
 		sendResponse(w, http.StatusMethodNotAllowed, "Invalid method",
 			nil)
@@ -183,6 +188,11 @@ func SingleRecipe(w http.ResponseWriter, r *http.Request) {
 				"Recipe Deleted Successfully", nil)
 		}
 
+	} else if r.Method == "OPTIONS" {
+
+		w.Header().Set("Access-Control-Allow-Methods", "POST, GET, PUT, DELETE, OPTIONS") //Enable CORS
+		w.Header().Set("Access-Control-Allow-Headers", "Content-Type")                    //Enable CORS
+		sendResponse(w, http.StatusOK, "Set Allowed Methods CORS", nil)
 	} else {
 		sendResponse(w, http.StatusMethodNotAllowed, "Invalid method",
 			nil)
diff --git a/recipeBuddy/package-lock.json b/recipeBuddy/package-lock.json
index dcb6c6d..0eca743 100644
--- a/recipeBuddy/package-lock.json
+++ b/recipeBuddy/package-lock.json
@@ -1057,6 +1057,7 @@
       "version": "8.2.3",
       "resolved": "https://registry.npmjs.org/@angular/material/-/material-8.2.3.tgz",
       "integrity": "sha512-SOczkIaqes+r+9XF/UUiokidfFKBpHkOPIaFK857sFD0FBNPvPEpOr5oHKCG3feERRwAFqHS7Wo2ohVEWypb5A==",
+      "dev": true,
       "requires": {
         "tslib": "^1.7.1"
       }
diff --git a/recipeBuddy/package.json b/recipeBuddy/package.json
index e90b482..e33973c 100644
--- a/recipeBuddy/package.json
+++ b/recipeBuddy/package.json
@@ -17,7 +17,6 @@
     "@angular/compiler": "~8.2.5",
     "@angular/core": "~8.2.5",
     "@angular/forms": "~8.2.5",
-    "@angular/material": "^8.2.3",
     "@angular/platform-browser": "~8.2.5",
     "@angular/platform-browser-dynamic": "~8.2.5",
     "@angular/router": "~8.2.5",
@@ -30,6 +29,7 @@
     "@angular/cli": "~8.3.4",
     "@angular/compiler-cli": "~8.2.5",
     "@angular/language-service": "~8.2.5",
+    "@angular/material": "^8.2.3",
     "@types/jasmine": "~3.3.8",
     "@types/jasminewd2": "~2.0.3",
     "@types/node": "~8.9.4",
diff --git a/recipeBuddy/src/app/DataModels/ingredient.ts b/recipeBuddy/src/app/DataModels/ingredient.ts
index 0ede1d1..c79b475 100644
--- a/recipeBuddy/src/app/DataModels/ingredient.ts
+++ b/recipeBuddy/src/app/DataModels/ingredient.ts
@@ -5,7 +5,7 @@ export class Ingredient {
 	private type_: string;
 
 	public constructor(name: string, amount: number, unit: string, type_: string) {
-		this.name = names;
+		this.name = name;
 		this.amount = amount;
 		this.unit = unit;
 		this.type_ = type_;
diff --git a/recipeBuddy/src/app/DataModels/ingredients.spec.ts b/recipeBuddy/src/app/DataModels/ingredients.spec.ts
deleted file mode 100644
index 17b5858..0000000
--- a/recipeBuddy/src/app/DataModels/ingredients.spec.ts
+++ /dev/null
@@ -1,7 +0,0 @@
-import { Ingredients } from './ingredients';
-
-describe('Ingredients', () => {
-  it('should create an instance', () => {
-    expect(new Ingredients()).toBeTruthy();
-  });
-});
diff --git a/recipeBuddy/src/app/DataModels/ingredients.ts b/recipeBuddy/src/app/DataModels/ingredients.ts
deleted file mode 100644
index 6f96e69..0000000
--- a/recipeBuddy/src/app/DataModels/ingredients.ts
+++ /dev/null
@@ -1,29 +0,0 @@
-export class Ingredients {
-	private names: string[];
-	private amounts: number[];
-	private units: string[];
-	private types: string[];
-
-	public constructor(names: string[], amounts: number[], units: string[], types: string[]) {
-		this.names = names;
-		this.amounts = amounts;
-		this.units = units;
-		this.types = types;
-	}
-
-	public getNames(): string[] {
-		return this.names;
-	}
-
-	public getAmounts(): number[] {
-		return this.amounts;
-	}
-
-	public getUnits(): string[] {
-		return this.units;
-	}
-
-	public getTypes(): string[] {
-		return this.types;
-	}
-}
diff --git a/recipeBuddy/src/app/DataModels/recipe.ts b/recipeBuddy/src/app/DataModels/recipe.ts
index 3194adc..368f237 100644
--- a/recipeBuddy/src/app/DataModels/recipe.ts
+++ b/recipeBuddy/src/app/DataModels/recipe.ts
@@ -1,5 +1,5 @@
-import {Steps} from "./steps"
-import {Ingredients} from "./ingredients"
+import {Step} from "./step"
+import {Ingredient} from "./ingredient"
 
 export class Recipe {
 	private id: number;
@@ -14,7 +14,7 @@ export class Recipe {
 	private tags: string[];
 	private photos: string[];
 
-	public constructor(id: number, name: string, description: string, ingredients: Ingredients, steps: Steps, servingSize: number, cookTime: number, rating: number, tags: string[]) {
+	public constructor(id: number, name: string, description: string, ingredients: Ingredient[], steps: Step[], servingSize: number, cookTime: number, rating: number, tags: string[]) {
 		this.id = id;
 		this.name = name;
 		this.description = description;
@@ -38,11 +38,11 @@ export class Recipe {
 		return this.description;
 	}
 
-	public getIngredients(): Ingredients {
+	public getIngredients(): Ingredient[] {
 		return this.ingredients;
 	}
 
-	public getSteps(): Steps {
+	public getSteps(): Step[] {
 		return this.steps;
 	}
 
@@ -55,7 +55,7 @@ export class Recipe {
 	}
   
 	public getTimesCooked(): number {
-		return timesCooked;
+		return this.timesCooked;
 	}
 	public getRating(): number {
 		return this.rating;
diff --git a/recipeBuddy/src/app/DataModels/step.ts b/recipeBuddy/src/app/DataModels/step.ts
index 674a6df..1c1ca7b 100644
--- a/recipeBuddy/src/app/DataModels/step.ts
+++ b/recipeBuddy/src/app/DataModels/step.ts
@@ -1,4 +1,4 @@
-export class Steps {
+export class Step {
 	private instruction: string;
 	private timer: number;
 
diff --git a/recipeBuddy/src/app/DataModels/steps.spec.ts b/recipeBuddy/src/app/DataModels/steps.spec.ts
deleted file mode 100644
index e315565..0000000
--- a/recipeBuddy/src/app/DataModels/steps.spec.ts
+++ /dev/null
@@ -1,7 +0,0 @@
-import { Steps } from './steps';
-
-describe('Steps', () => {
-  it('should create an instance', () => {
-    expect(new Steps()).toBeTruthy();
-  });
-});
diff --git a/recipeBuddy/src/app/DataModels/steps.ts b/recipeBuddy/src/app/DataModels/steps.ts
deleted file mode 100644
index 9061dc2..0000000
--- a/recipeBuddy/src/app/DataModels/steps.ts
+++ /dev/null
@@ -1,18 +0,0 @@
-export class Steps {
-	private instructions: string[];
-	private timers: number[];
-
-	public contructor(instructions: string[], timers: number[]) {
-		this.instructions = instructions;
-		this.timers = timers;
-	}
-
-	public getInstructions(): string[] {
-		return this.instructions;
-	}
-
-	public getTimers(): number[] {
-		return this.timers;
-	}
-
-}
diff --git a/recipeBuddy/src/app/REST_service/backend.service.spec.ts b/recipeBuddy/src/app/REST_service/backend.service.spec.ts
new file mode 100644
index 0000000..2fe8217
--- /dev/null
+++ b/recipeBuddy/src/app/REST_service/backend.service.spec.ts
@@ -0,0 +1,12 @@
+import { TestBed } from '@angular/core/testing';
+
+import { BackendService } from './backend.service';
+
+describe('BackendService', () => {
+  beforeEach(() => TestBed.configureTestingModule({}));
+
+  it('should be created', () => {
+    const service: BackendService = TestBed.get(BackendService);
+    expect(service).toBeTruthy();
+  });
+});
diff --git a/recipeBuddy/src/app/REST_service/backend.service.ts b/recipeBuddy/src/app/REST_service/backend.service.ts
new file mode 100644
index 0000000..1a2d933
--- /dev/null
+++ b/recipeBuddy/src/app/REST_service/backend.service.ts
@@ -0,0 +1,93 @@
+import { Injectable } from '@angular/core'
+import { HttpClient, HttpHeaders } from '@angular/common/http'
+import { Observable, throwError } from 'rxjs'
+import { retry, catchError, map } from 'rxjs/operators'
+import { Recipe } from '../DataModels/recipe'
+
+
+export interface Status {
+	Code: number;
+	Msg: string;
+}
+export interface MsgList {
+	Status: Status;
+	Data: number[];
+}
+
+export interface Msg {
+	Status: Status;
+	Data: Recipe;
+}
+
+
+@Injectable({ providedIn: 'root' })
+
+/* BackendService class based on tutorial at:
+ * <https://www.positronx.io/angular-8-httpclient-http-tutorial-build-consume-restful-api/>
+ */
+export class BackendService {
+	apiURL = 'http://api.recipebuddy.xyz:8888'
+
+	constructor( private http: HttpClient)
+	{
+	}
+
+	httpOptions = {headers: new HttpHeaders(
+		{'Content-Type':'application/json'}
+	)}
+
+
+	getRecipes(): Observable<number[]>
+	{
+		return this.http.get<MsgList>(this.apiURL + '/recipes')
+			.pipe (
+				retry(1),
+				map(msg => msg.Data),
+				catchError(this.handleError)
+			)
+	}
+
+
+	getRecipe(id): Observable<Recipe>
+	{
+		return this.http.get<Msg>(this.apiURL + '/recipes/' + id)
+			.pipe (
+				retry(1),
+				map(msg => msg.Data),
+				catchError(this.handleError)
+			)
+	}
+
+	createRecipe(data): Observable<Recipe>
+	{
+		return this.http.post<Recipe>(this.apiURL + '/recipes',
+			JSON.stringify(data), this.httpOptions)
+	}
+
+	updateRecipe(data): Observable<Recipe>
+	{
+		return this.http.put<Recipe>(this.apiURL + '/recipes/' + data.id,
+			JSON.stringify(data), this.httpOptions)
+	}
+
+	deleteRecipe(id): Observable<Msg>
+	{
+		return this.http.delete<Msg>(this.apiURL + '/recipes/' + id)
+			.pipe (
+				retry(1),
+				catchError(this.handleError)
+			)
+	}
+
+	handleError(error) {
+		let errMsg = '';
+		if (error.error instanceof ErrorEvent) {
+			errMsg = error.error.message;
+		} else {
+			errMsg = 'Error API';
+		}
+		console.log(errMsg)
+		window.alert(errMsg)
+		return throwError(errMsg);
+	}
+}
diff --git a/recipeBuddy/src/app/app.module.ts b/recipeBuddy/src/app/app.module.ts
index fd2059c..eaa0553 100644
--- a/recipeBuddy/src/app/app.module.ts
+++ b/recipeBuddy/src/app/app.module.ts
@@ -9,6 +9,8 @@ import { StepCardComponent } from './cook-page/step-card/step-card.component';
 
 import { AppRoutingModule } from './app-routing.module';
 
+import {HttpClientModule } from '@angular/common/http'
+
 @NgModule({
   declarations: [
     AppComponent,
@@ -19,6 +21,7 @@ import { AppRoutingModule } from './app-routing.module';
     BrowserModule,
     AppRoutingModule,
     MatCardModule,
+    HttpClientModule
   ],
   providers: [],
   bootstrap: [AppComponent]