Inicio do Exercicio

modulo5/knex-js/.gitignore

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+node_modules
+package-lock.json
+build
+.env

modulo5/knex-js/package.json

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+{
+  "name": "aula-knex",
+  "version": "1.0.0",
+  "main": "index.js",
+
+
+"scripts": {
+	"dev": "clear && ts-node-dev ./src/index.ts",
+	"start": "tsc && node ./build/index.js",
+	"test": "echo \"Error: no test specified\" && exit 1"
+},
+  "author": "Labenu",
+  "license": "ISC",
+  "dependencies": {
+    "cors": "^2.8.5",
+    "dotenv": "^8.2.0",
+    "express": "^4.17.1",
+    "knex": "^0.95.2",
+    "mysql": "^2.18.1"
+  },
+  "devDependencies": {
+    "@types/cors": "^2.8.10",
+    "@types/express": "^4.17.11",
+    "@types/knex": "^0.16.1",
+    "@types/node": "^14.14.35",
+    "ts-node-dev": "^1.1.6",
+    "typescript": "^4.2.3"
+  }
+}

modulo5/knex-js/src/Ex01.ts

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+import {Request, Response} from "express"
+import { connection } from "./connection"
+
+//  a)
+//  É retornado um array com a informações solicitadas pelo usuario
+
+// b)
+export const actors = async (req: Request, res: Response) => {
+
+    try {
+    const name = req.query.name
+    const result = await connection.raw
+    (
+   `SELECT * from Actor
+    WHERE name = "${name}"`
+    )
+    console.log(result)
+res.status(200).send(result[0])
+    }
+
+    catch (error) {
+        console.log(error)
+    }
+
+}
+
+// c)
+
+export const gen = async (req: Request, res: Response) => {
+
+    try {
+    const gender = req.query.gender
+    const result = await connection.raw
+    (
+   `SELECT COUNT (*) from Actor
+    WHERE gender = "${gender}"`
+    )
+    console.log(result)
+res.status(200).send(result[0])
+    }
+
+    catch (error) {
+        console.log(error)
+    }
+
+}
+

modulo5/knex-js/src/Ex02.ts

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+import {Request, Response} from "express"
+import { connection } from "./connection"
+
+
+  export const addMoney = async (req: Request, res: Response) => {
+    const id = req.params.id;
+    const { salary } = req.body;
+
+    try {
+        await connection("Actor")
+            .update({
+                salary,
+            })
+            .where({
+                id
+            });
+        res.send("Ok");
+    } catch(e) {
+        console.error({e});
+        return res.status(500).send("Algo deu errado.");
+    }
+};
+
+// app.delete('/actor/:id', async (req, res) => {
+//     // const id = req.params.id;
+//     // const { id } = req.params;
+
+//     try {
+//         await connection("Actor")
+//             .delete()
+//             .where({
+//                 id: req.params.id
+//             });
+//         res.send("Ok");
+
+//     } catch(e) {
+//         console.error({e});
+//         return res.status(500).send("Algo deu errado.");
+//     }
+// });

modulo5/knex-js/src/app.ts

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+import express from "express";
+import cors from "cors";
+import { AddressInfo } from "net";
+
+export const app = express();
+
+app.use(express.json());
+app.use(cors());
+
+const server = app.listen(process.env.PORT || 3003, () => {
+  if (server) {
+    const address = server.address() as AddressInfo;
+    console.log(`Server is running in http://localhost:${address.port}`);
+  } else {
+    console.error(`Failure upon starting server.`);
+  }
+});
+

modulo5/knex-js/src/connection.ts

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+import knex from "knex";
+import dotenv from "dotenv";
+
+dotenv.config();
+
+export const connection = knex({
+   client: "mysql",
+   connection: {
+      host: process.env.DB_HOST,
+      port: 3306,
+      user: process.env.DB_USER,
+      password: process.env.DB_PASSWORD,
+      database: process.env.DB_SCHEMA,
+      multipleStatements: true
+   },
+});
+

modulo5/knex-js/src/index.ts

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+import { app } from "./app"
+import {Request, Response} from "express"
+import { actors, gen }  from "./Ex01"
+import { addMoney } from "./Ex02"
+
+app.get("/actor/", actors)
+
+app.get("/gender/", gen)
+
+app.put("/addSalary/:id", addMoney)
+
+

modulo5/knex-js/tsconfig.json

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+{
+   "compilerOptions": {
+      "target": "es6",
+      "module": "commonjs",
+      "sourceMap": true,
+      "outDir": "./build",
+      "rootDir": "./src",
+      "removeComments": true,
+      "strict": true,
+      "noImplicitAny": true,
+      "esModuleInterop": true,
+      "forceConsistentCasingInFileNames": true
+   }
+}