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app.js
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app.js
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const express = require("express");
const path = require("path");
const { open } = require("sqlite");
const sqlite3 = require("sqlite3");
const app = express();
app.use(express.json());
const dbPath = path.join(__dirname, "moviesData.db");
let db = null;
const initializeDBAndServer = async (request, response) => {
try {
db = await open({
filename: dbPath,
driver: sqlite3.Database,
});
app.listen(3000, () => {
console.log("Server Running at http://localhost:3000/");
});
} catch (e) {
console.log(`DB Error ${e.message}`);
process.exit(1);
}
};
initializeDBAndServer();
//1. Get all movie names
app.get("/movies/", async (request, response) => {
const getAllMoviesQuery = `
SELECT
movie_name AS movieName
FROM
movie
ORDER BY movie_id;
`;
const moviesList = await db.all(getAllMoviesQuery);
response.send(moviesList);
});
//2. Add new movie
app.post("/movies/", async (request, response) => {
const movieDetails = request.body;
const { directorId, movieName, leadActor } = movieDetails;
const addMovieQuery = `
INSERT INTO
movie
(director_id, movie_name, lead_actor)
VALUES (
${directorId},
'${movieName}',
'${leadActor}'
);
`;
const dbResponse = await db.run(addMovieQuery);
const movie_id = dbResponse.lastID;
response.send("Movie Successfully Added");
});
//3. GET SPECIFIC NAME
app.get("/movies/:movieId/", async (request, response) => {
const { movieId } = request.params;
const getSpecificMovieQuery = `
SELECT
movie_id AS movieId,
director_id AS directorId,
movie_name AS movieName,
lead_actor AS leadActor
FROM
movie
WHERE movie_id = ${movieId};
`;
getMovie = await db.get(getSpecificMovieQuery);
response.send(getMovie);
});
//4. UPDATE MOVIE
app.put("/movies/:movieId/", async (request, response) => {
const { movieId } = request.params;
const newMovieDetails = request.body;
const { directorId, movieName, leadActor } = newMovieDetails;
const updateMovieQuery = `
UPDATE
movie
SET
director_id = ${directorId},
movie_name = '${movieName}',
lead_actor = '${leadActor}'
WHERE movie_id = ${movieId};
`;
await db.run(updateMovieQuery);
response.send("Movie Details Updated");
});
//5. DELETE MOVIE
app.delete("/movies/:movieId/", async (request, response) => {
const { movieId } = request.params;
const deleteMovieQuery = `
DELETE
FROM
movie
WHERE
movie_id = ${movieId};
`;
await db.run(deleteMovieQuery);
response.send("Movie Removed");
});
// 6. GET ALL DIRECTORS
app.get("/directors/", async (request, response) => {
const getAllDirectors = `
SELECT
director_id AS directorId,
director_name AS directorName
FROM
director
`;
const dbDirectors = await db.all(getAllDirectors);
response.send(dbDirectors);
});
// 7. Returns a list of all movie names directed by a specific director
app.get("/directors/:directorId/movies/", async (request, response) => {
const { directorId } = request.params;
const getMovieNamesWhoDirected = `
SELECT
movie.movie_name AS movieName
FROM
movie INNER JOIN director
ON movie.director_id = director.director_id
WHERE movie.director_id = ${directorId};
`;
const movieNameResponse = await db.all(getMovieNamesWhoDirected);
response.send(movieNameResponse);
});
module.exports = app;