9.6 - 9.7

Author: dhatGuy

part9/.eslintrc

@@ -0,0 +1,28 @@
+{
+  "extends": [
+    "eslint:recommended",
+    "plugin:@typescript-eslint/recommended",
+    "plugin:@typescript-eslint/recommended-requiring-type-checking"
+  ],
+  "plugins": ["@typescript-eslint"],
+  "env": {
+    "node": true,
+    "es6": true
+  },
+  "rules": {
+    "@typescript-eslint/semi": ["error"],
+    "@typescript-eslint/explicit-function-return-type": "off",
+    "@typescript-eslint/explicit-module-boundary-types": "off",
+    "@typescript-eslint/restrict-template-expressions": "off",
+    "@typescript-eslint/restrict-plus-operands": "off",
+    "@typescript-eslint/no-unused-vars": [
+      "error",
+      { "argsIgnorePattern": "^_" }
+    ],
+    "no-case-declarations": "off"
+  },
+  "parser": "@typescript-eslint/parser",
+  "parserOptions": {
+    "project": "./tsconfig.json"
+  }
+}

part9/exerciseCalculator.ts

@@ -8,7 +8,7 @@ interface Result {
   average: number;
 }
 
-const calculateExercise = (
+export const calculateExercise = (
   dailyExerciseHours: number[],
   target: number
 ): Result => {

part9/index.ts

@@ -1,7 +1,11 @@
+/* eslint-disable @typescript-eslint/no-unsafe-call */
+/* eslint-disable @typescript-eslint/no-unsafe-member-access */
 import express from "express";
 import { calculateBMI } from "./bmiCalculator";
+import { calculateExercise } from "./exerciseCalculator";
 
 const app = express();
+app.use(express.json());
 
 app.get("/hello", (_req, res) => {
   res.send("Hello Full Stack!");
@@ -27,6 +31,31 @@ app.get("/bmi", (req, res) => {
   });
 });
 
+app.post("/exercises", (req, res) => {
+  // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
+  const { daily_exercises, target } = req.body;
+  console.log(req.body);
+  if (!daily_exercises || !target) {
+    res.status(400).send({ error: "malformatted parameters" });
+  }
+  // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
+  const dailyExerciseHoursNum: number[] = daily_exercises.map(
+    (hours: number) => {
+      const hoursNum = Number(hours);
+      if (isNaN(hoursNum)) {
+        res.status(400).send({ error: "malformation parameters" });
+      }
+      return hoursNum;
+    }
+  );
+  const targetNum = Number(target);
+  if (isNaN(targetNum)) {
+    res.status(400).send({ error: "malformatted parameters" });
+  }
+  const result = calculateExercise(dailyExerciseHoursNum, targetNum);
+  res.send(result);
+});
+
 app.listen(3333, () => {
   console.log("🚀 Server started on port 3333!");
 });

part9/package.json

@@ -7,11 +7,15 @@
     "calculateBMI": "ts-node bmiCalculator.ts",
     "calculateExercises": "ts-node exerciseCalculator.ts",
     "start": "ts-node index.ts",
-    "dev": "ts-node-dev index.ts"
+    "dev": "ts-node-dev index.ts",
+    "lint": "eslint --ext .ts ."
   },
   "devDependencies": {
     "@types/express": "^4.17.13",
     "@types/node": "^17.0.10",
+    "@typescript-eslint/eslint-plugin": "^5.10.0",
+    "@typescript-eslint/parser": "^5.10.0",
+    "eslint": "^8.7.0",
     "ts-node": "^10.4.0",
     "ts-node-dev": "^1.1.8",
     "tslib": "^2.3.1",