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…e api/movies route
…f db has no data.
…s that all require eather no role or user/admin roles. For testing purpose the .http file is already prepped.
WalkthroughThis pull request transforms a basic Java template into a Spring Boot REST API application for managing movies. It introduces a MySQL-backed data model, Spring Security with role-based access control, a Movie REST controller with CRUD endpoints, and Flyway database migrations. Legacy test files and the original entry point are removed in favor of a Spring Boot application class. Changes
Sequence Diagram(s)sequenceDiagram
actor Client
participant SecurityFilter as Security Filter
participant Controller as MovieController
participant Repository as MovieRepository
participant Database as MySQL DB
Note over Client,Database: GET /api/movies (Public, No Auth)
Client->>SecurityFilter: GET /api/movies
SecurityFilter->>Controller: Forward
Controller->>Repository: findAll()
Repository->>Database: Query
Database-->>Repository: Movie list
Repository-->>Controller: List<Movie>
Controller-->>Client: 200 OK [MovieDTO list]
Note over Client,Database: POST /api/movies (USER Role Required)
Client->>SecurityFilter: POST /api/movies + Credentials
alt User Authenticated & Has Role
SecurityFilter->>Controller: Forward (verified)
Controller->>Repository: save(Movie)
Repository->>Database: INSERT
Database-->>Repository: Saved
Repository-->>Controller: Success
Controller-->>Client: 200 OK "Movie created"
else Authentication/Authorization Failed
SecurityFilter-->>Client: 403 Forbidden
end
Note over Client,Database: DELETE /api/movies/{id} (ADMIN Role Required)
Client->>SecurityFilter: DELETE /api/movies/1 + Admin Credentials
alt Admin Authenticated & Has Role
SecurityFilter->>Controller: Forward (verified)
Controller->>Repository: existsById(1)
Repository->>Database: Query
alt Movie Exists
Database-->>Repository: true
Repository-->>Controller: true
Controller->>Repository: deleteById(1)
Repository->>Database: DELETE
Database-->>Repository: Deleted
Repository-->>Controller: Success
Controller-->>Client: 200 OK
else Movie Not Found
Database-->>Repository: false
Repository-->>Controller: false
Controller-->>Client: 404 Not Found
end
else Authentication/Authorization Failed
SecurityFilter-->>Client: 403 Forbidden
end
sequenceDiagram
participant SpringBoot as Spring Boot\nApplication
participant DevInit as DevDataInitializer\n(dev profile)
participant Repository as MovieRepository
participant Database as MySQL DB
SpringBoot->>SpringBoot: Detect dev profile active
SpringBoot->>DevInit: Instantiate (dev profile match)
SpringBoot->>DevInit: run(ApplicationArguments)
DevInit->>Repository: count() / findAll()
Repository->>Database: Query
Database-->>Repository: Result
alt Repository is Empty
Repository-->>DevInit: 0 results
DevInit->>DevInit: Log initialization message
DevInit->>Repository: save(Movie 1)
Repository->>Database: INSERT
DevInit->>Repository: save(Movie 2)
Repository->>Database: INSERT
DevInit->>Repository: save(Movie 3)
Repository->>Database: INSERT
Database-->>DevInit: Saved
else Data Already Exists
Repository-->>DevInit: n > 0 results
DevInit->>DevInit: Skip seeding
end
DevInit-->>SpringBoot: Initialization complete
Estimated code review effort🎯 4 (Complex) | ⏱️ ~45 minutes Areas requiring extra attention:
✨ Finishing touches
🧪 Generate unit tests (beta)
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Actionable comments posted: 6
🧹 Nitpick comments (5)
pom.xml (1)
16-28: Empty metadata placeholders can be removed.The empty
<url/>,<license/>,<developer/>, and<scm>elements are just boilerplate. Consider removing them to reduce clutter, or populate them with actual project information.src/main/java/org/example/CreateMovieDTO.java (1)
3-9: Consider adding validation annotations.The DTO structure is appropriate for movie creation, but consider adding Bean Validation annotations to ensure data quality:
@NotBlankfor title, genre, and description@Minand@Maxfor year (e.g., reasonable year ranges)@Min(1)for runtimeMinutesExample:
public record CreateMovieDTO ( @NotBlank String title, @NotBlank String genre, @NotBlank String description, @Min(1895) @Max(2100) int year, @Min(1) int runtimeMinutes ) {}You'll also need to add
@Validto the controller's@RequestBodyparameter.src/main/java/org/example/config/DevDataInitializer.java (1)
21-25: Make the repository field private and final.The injected repository should be
private finalfor proper encapsulation and immutability.Apply this diff:
- MovieRepository movieRepository; + private final MovieRepository movieRepository; public DevDataInitializer(MovieRepository movieRepository) { this.movieRepository = movieRepository;src/main/java/org/example/controllers/MovieController.java (2)
37-52: Improve REST API design: return 201 Created with the created resource.The POST endpoint should follow REST best practices:
- Return HTTP 201 Created status
- Return the created resource (MovieDTO) instead of a String message
- Add
@Validfor input validation (if validation annotations are added to CreateMovieDTO)Apply this diff:
@PostMapping("/movies") + @ResponseStatus(HttpStatus.CREATED) @PreAuthorize("hasRole('USER')") - public String createMovie(@RequestBody CreateMovieDTO dto) { + public MovieDTO createMovie(@RequestBody CreateMovieDTO dto) { Movie movie = new Movie( dto.title(), dto.genre(), dto.description(), dto.year(), dto.runtimeMinutes() ); - movieRepository.save(movie); + Movie savedMovie = movieRepository.save(movie); - return "Movie created successfully"; + return new MovieDTO( + savedMovie.getId(), + savedMovie.getTitle(), + savedMovie.getGenre(), + savedMovie.getDescription(), + savedMovie.getYear(), + savedMovie.getRuntimeMinutes() + ); }
54-62: Optional: Consider TOCTOU race condition.There's a small window between the
existsByIdcheck (line 58) anddeleteByIdcall (line 61) where the movie could be deleted by another request. While unlikely to cause issues in this learning project, you could simplify by relying on the repository method's behavior.Alternative approach:
@DeleteMapping("/movies/{id}") @PreAuthorize("hasRole('ADMIN')") public void deleteMovie(@PathVariable Integer id) { if (!movieRepository.existsById(id)) { throw new ResponseStatusException(HttpStatus.NOT_FOUND, "Movie not found"); } movieRepository.deleteById(id); }The current implementation is acceptable for this project's scope.
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⛔ Files ignored due to path filters (3)
lib/jackson-annotations-2.17.2.jaris excluded by!**/*.jarlib/jackson-core-2.17.2.jaris excluded by!**/*.jarlib/jackson-databind-2.17.2.jaris excluded by!**/*.jar
📒 Files selected for processing (18)
Movie.http(1 hunks)docker-compose.yml(1 hunks)pom.xml(1 hunks)src/main/java/org/example/App.java(0 hunks)src/main/java/org/example/CreateMovieDTO.java(1 hunks)src/main/java/org/example/Exercise2025Application.java(1 hunks)src/main/java/org/example/MovieDTO.java(1 hunks)src/main/java/org/example/config/DevDataInitializer.java(1 hunks)src/main/java/org/example/config/SecurityConfig.java(1 hunks)src/main/java/org/example/controllers/MovieController.java(1 hunks)src/main/java/org/example/entities/Movie.java(1 hunks)src/main/java/org/example/repos/MovieRepository.java(1 hunks)src/main/resources/application-dev.properties(1 hunks)src/main/resources/application.properties(1 hunks)src/main/resources/db/migration/V1__initial.sql(1 hunks)src/test/java/org/example/AppIT.java(0 hunks)src/test/java/org/example/AppTest.java(0 hunks)src/test/java/org/example/Exercise2025ApplicationTest.java(1 hunks)
💤 Files with no reviewable changes (3)
- src/test/java/org/example/AppTest.java
- src/main/java/org/example/App.java
- src/test/java/org/example/AppIT.java
🧰 Additional context used
🧠 Learnings (3)
📚 Learning: 2025-11-16T13:56:11.263Z
Learnt from: jennymakki
Repo: fungover/exercise2025 PR: 204
File: src/main/java/org/example/config/SecurityConfig.java:19-24
Timestamp: 2025-11-16T13:56:11.263Z
Learning: The repository fungover/exercise2025 is an exercise/learning project where hard-coded credentials and other shortcuts for ease of testing are acceptable and intentional.
Applied to files:
src/main/resources/application.propertiessrc/test/java/org/example/Exercise2025ApplicationTest.javasrc/main/java/org/example/Exercise2025Application.javapom.xml
📚 Learning: 2025-09-10T14:02:54.365Z
Learnt from: alfredbrannare
Repo: fungover/exercise2025 PR: 66
File: src/test/java/org/example/service/WarehouseTest.java:1-21
Timestamp: 2025-09-10T14:02:54.365Z
Learning: In the fungover/exercise2025 project, static mocking of LocalDateTime.now() works successfully with the existing Mockito setup without requiring mockito-inline dependency.
Applied to files:
src/test/java/org/example/Exercise2025ApplicationTest.java
📚 Learning: 2025-11-21T16:16:54.793Z
Learnt from: LolloGro
Repo: fungover/exercise2025 PR: 211
File: src/main/resources/templates/listOfBooks.html:11-12
Timestamp: 2025-11-21T16:16:54.793Z
Learning: In the repository fungover/exercise2025, the Author DTO uses NotEmpty validation on firstName and lastName fields, and BookDto uses NotNull validation on the author field. This validation architecture ensures that books always have complete author information, making null-safety checks in Thymeleaf templates unnecessary.
Applied to files:
pom.xml
🔇 Additional comments (11)
src/main/resources/application.properties (1)
1-2: LGTM!Simple and appropriate configuration for a Spring Boot application. Setting the dev profile as the default active profile aligns with the exercise/learning nature of this project.
src/main/resources/application-dev.properties (1)
1-3: LGTM!Appropriate development settings. The
start_onlylifecycle management prevents accidental container teardown, and SQL logging with formatting aids debugging.src/main/java/org/example/repos/MovieRepository.java (1)
1-7: LGTM!Clean repository interface. Using
ListCrudRepositoryis a good choice as it providesListreturn types instead ofIterable, which is more convenient for most use cases.pom.xml (1)
5-10: Spring Boot 3.5.6 and Java 25 are both current, released versions as of November 2025.Spring Boot 3.5.6 was released on September 18, 2025, and Java 25 (JDK 25) was released as GA on September 16, 2025 and designated as an LTS release. Both versions are appropriate and widely available.
src/test/java/org/example/Exercise2025ApplicationTest.java (1)
6-13: LGTM! Standard Spring Boot smoke test.This context load test follows the standard Spring Boot testing pattern and will verify that the application context can be loaded successfully.
src/main/java/org/example/MovieDTO.java (1)
3-4: LGTM! Clean DTO design.The record structure is appropriate for transferring movie data. Using
Integerfor the id allows it to be nullable, which is suitable for DTOs that may represent both existing and new movies.Movie.http (1)
3-6: LGTM! GET request is correctly formatted.The GET request to
/api/moviescorrectly requires no authentication, matching the security configuration.src/main/java/org/example/config/DevDataInitializer.java (1)
27-38: LGTM! Clean data initialization logic.The implementation correctly checks if the database is empty before seeding, uses appropriate logging, and is properly scoped to the dev profile with
@Transactional.src/main/java/org/example/Exercise2025Application.java (1)
6-13: LGTM! Standard Spring Boot application entry point.The application class follows the standard Spring Boot pattern and is correctly configured.
src/main/java/org/example/config/SecurityConfig.java (1)
22-54: LGTM! Security configuration aligns with PR requirements.The configuration correctly implements the three-route security model described in the PR:
- Public GET access to
/api/movies/**- Authentication required for other endpoints
- In-memory users with USER and ADMIN roles
The hard-coded credentials and disabled CSRF are acceptable for this exercise project. Based on learnings, the repository is an exercise/learning project where such shortcuts are intentional.
src/main/java/org/example/controllers/MovieController.java (1)
24-35: LGTM! Clean GET endpoint implementation.The endpoint correctly maps entities to DTOs and returns the movie list. The manual mapping is appropriate for this simple use case.
| services: | ||
| mysql: | ||
| image: 'mysql:9.5.0' | ||
| environment: | ||
| - 'MYSQL_DATABASE=spring' | ||
| - 'MYSQL_PASSWORD=password' | ||
| - 'MYSQL_ROOT_PASSWORD=root' | ||
| - 'MYSQL_USER=user' | ||
| ports: | ||
| - '3306:3306' No newline at end of file |
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🧩 Analysis chain
MySQL 9.5.0 version release availability Docker Hub
<web_search_result>
Yes — MySQL 9.5.0 is available as a Docker image on Docker Hub (tags such as mysql:9.5.0 and mysql:9.5.0-oraclelinux9 were published on Oct 22, 2025). [1][2][3]
</web_search_result>
No volume defined for data persistence; consider adding a healthcheck.
For an exercise project, these may be intentional, but:
- No volume: Data will be lost when the container stops. Add a volume if persistence is needed.
- No healthcheck: Spring Boot may attempt to connect before MySQL is fully ready. Consider adding a healthcheck or rely on Spring Boot's retry mechanism.
The MySQL 9.5.0 image is valid and available on Docker Hub (published Oct 22, 2025).
🤖 Prompt for AI Agents
In docker-compose.yml lines 1-10, the MySQL service has no volume for data
persistence and no healthcheck; add a persistent volume (either a named volume
or bind mount like ./mysql-data:/var/lib/mysql) to the mysql service to avoid
data loss across container restarts, and add a healthcheck (e.g., a mysqladmin
ping or a small script that uses MYSQL_ROOT_PASSWORD) so Docker reports
readiness and dependent services can wait; ensure the healthcheck uses
appropriate interval/retries/timeouts and reference the MYSQL_ROOT_PASSWORD env
var.
| //Test delete request. Admin role needed | ||
| // Just check the DB manually that the id exists or type in another id instead of 1 | ||
| DELETE http://localhost:8080/api/movies/1 | ||
| Authorization: Basic admin adminpassword | ||
| ### |
There was a problem hiding this comment.
Fix: Malformed Basic Authentication header.
The Basic Authentication format is incorrect. The credentials must be base64-encoded in the format username:password.
Apply this fix:
-Authorization: Basic admin adminpassword
+Authorization: Basic YWRtaW46YWRtaW5wYXNzd29yZA==The correct value is base64("admin:adminpassword").
📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| //Test delete request. Admin role needed | |
| // Just check the DB manually that the id exists or type in another id instead of 1 | |
| DELETE http://localhost:8080/api/movies/1 | |
| Authorization: Basic admin adminpassword | |
| ### | |
| //Test delete request. Admin role needed | |
| // Just check the DB manually that the id exists or type in another id instead of 1 | |
| DELETE http://localhost:8080/api/movies/1 | |
| Authorization: Basic YWRtaW46YWRtaW5wYXNzd29yZA== | |
| ### |
🤖 Prompt for AI Agents
In Movie.http around lines 8 to 12, the Authorization header uses plain
credentials instead of a properly formed Basic auth header; replace the header
value with "Basic " followed by the base64-encoded string of
"admin:adminpassword" (i.e., compute base64("admin:adminpassword") and use that
as the header value) so the request conforms to HTTP Basic Authentication.
| //Test post request. User role needed | ||
| // To add a movie to the DB. | ||
| POST http://localhost:8080/api/movies | ||
| Content-Type: application/json | ||
| Authorization: Basic user password | ||
|
|
||
| { | ||
| "title": "Just write whatever", | ||
| "genre": "Sci-Fi", | ||
| "description": "A movie about bla bla bla", | ||
| "year": 2025, | ||
| "runtimeMinutes": 240 | ||
| } | ||
| ### No newline at end of file |
There was a problem hiding this comment.
Fix: Malformed Basic Authentication header.
The Basic Authentication format is incorrect. The credentials must be base64-encoded in the format username:password.
Apply this fix:
-Authorization: Basic user password
+Authorization: Basic dXNlcjpwYXNzd29yZA==The correct value is base64("user:password").
📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| //Test post request. User role needed | |
| // To add a movie to the DB. | |
| POST http://localhost:8080/api/movies | |
| Content-Type: application/json | |
| Authorization: Basic user password | |
| { | |
| "title": "Just write whatever", | |
| "genre": "Sci-Fi", | |
| "description": "A movie about bla bla bla", | |
| "year": 2025, | |
| "runtimeMinutes": 240 | |
| } | |
| ### | |
| //Test post request. User role needed | |
| // To add a movie to the DB. | |
| POST http://localhost:8080/api/movies | |
| Content-Type: application/json | |
| Authorization: Basic dXNlcjpwYXNzd29yZA== | |
| { | |
| "title": "Just write whatever", | |
| "genre": "Sci-Fi", | |
| "description": "A movie about bla bla bla", | |
| "year": 2025, | |
| "runtimeMinutes": 240 | |
| } | |
| ### |
🤖 Prompt for AI Agents
In Movie.http around lines 14 to 27, the Authorization header uses a malformed
Basic auth value; replace it with a properly base64-encoded "username:password"
token. Compute base64("user:password") and set the Authorization header to
"Basic <that-base64-string>" so the header follows the required Basic
<base64(username:password)> format.
| String title; | ||
| String genre; | ||
| String description; | ||
| int year; | ||
| int runtimeMinutes; |
There was a problem hiding this comment.
🛠️ Refactor suggestion | 🟠 Major
Mark fields as private for proper encapsulation.
These fields have package-private visibility (no access modifier). For consistency with the other fields and proper encapsulation, they should be private.
- String title;
- String genre;
- String description;
- int year;
- int runtimeMinutes;
+ private String title;
+ private String genre;
+ private String description;
+ private int year;
+ private int runtimeMinutes;📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| String title; | |
| String genre; | |
| String description; | |
| int year; | |
| int runtimeMinutes; | |
| private String title; | |
| private String genre; | |
| private String description; | |
| private int year; | |
| private int runtimeMinutes; |
🤖 Prompt for AI Agents
In src/main/java/org/example/entities/Movie.java around lines 20 to 24, the
fields title, genre, description, year and runtimeMinutes are declared with
package-private visibility; change their access modifiers to private for proper
encapsulation and consistency with other fields, and ensure any external code
uses the class's public getters/setters (create them if missing) or adjust
references within the class accordingly.
| @Override | ||
| public boolean equals(Object o) { | ||
| if (o == null || getClass() != o.getClass()) return false; | ||
|
|
||
| Movie movie = (Movie) o; | ||
| return year == movie.year && runtimeMinutes == movie.runtimeMinutes && id.equals(movie.id) && Objects.equals(title, movie.title) && Objects.equals(genre, movie.genre) && Objects.equals(description, movie.description) && createdAt.equals(movie.createdAt) && updatedAt.equals(movie.updatedAt); | ||
| } | ||
|
|
||
| @Override | ||
| public int hashCode() { | ||
| int result = id.hashCode(); | ||
| result = 31 * result + Objects.hashCode(title); | ||
| result = 31 * result + Objects.hashCode(genre); | ||
| result = 31 * result + Objects.hashCode(description); | ||
| result = 31 * result + year; | ||
| result = 31 * result + runtimeMinutes; | ||
| result = 31 * result + createdAt.hashCode(); | ||
| result = 31 * result + updatedAt.hashCode(); | ||
| return result; | ||
| } |
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Potential NPE in equals() and hashCode() - mutable fields also problematic.
Several issues with the current implementation:
-
NPE risk:
id,createdAt, andupdatedAtcan benullfor unsaved entities, buthashCode()calls.hashCode()directly on them (lines 50, 56-57), andequals()calls.equals()oncreatedAtandupdatedAt(line 45). -
Mutable fields in hashCode: Including
updatedAtcauses the hash code to change on every update, breaking HashMap/HashSet behavior.
For JPA entities, consider basing equals()/hashCode() only on the id with null-safety, or use a natural business key.
@Override
public boolean equals(Object o) {
if (o == null || getClass() != o.getClass()) return false;
+ if (id == null) return false;
Movie movie = (Movie) o;
- return year == movie.year && runtimeMinutes == movie.runtimeMinutes && id.equals(movie.id) && Objects.equals(title, movie.title) && Objects.equals(genre, movie.genre) && Objects.equals(description, movie.description) && createdAt.equals(movie.createdAt) && updatedAt.equals(movie.updatedAt);
+ return id.equals(movie.id);
}
@Override
public int hashCode() {
- int result = id.hashCode();
- result = 31 * result + Objects.hashCode(title);
- result = 31 * result + Objects.hashCode(genre);
- result = 31 * result + Objects.hashCode(description);
- result = 31 * result + year;
- result = 31 * result + runtimeMinutes;
- result = 31 * result + createdAt.hashCode();
- result = 31 * result + updatedAt.hashCode();
- return result;
+ return id != null ? id.hashCode() : 0;
}🤖 Prompt for AI Agents
In src/main/java/org/example/entities/Movie.java around lines 40 to 59, the
current equals/hashCode call .equals()/.hashCode() on potentially null fields
(id, createdAt, updatedAt) and includes mutable fields (updatedAt) in hashCode;
change both methods to be null-safe and to avoid mutable fields by basing
equality/hash only on the entity identifier: implement equals to return true for
same reference, check instanceof, then if id != null compare id via
Objects.equals(id, other.id); if id == null fall back to reference equality (or
return false) to avoid treating transient entities as equal; implement hashCode
to return id.hashCode() when id != null and a stable identity-based value (e.g.,
System.identityHashCode(this) or 0) when id is null; remove createdAt/updatedAt
and other mutable fields from hashCode/equals.
| `description` VARCHAR(255) NULL, | ||
| year INT NOT NULL, |
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Escape year column name - it's a MySQL reserved keyword.
You've correctly escaped description with backticks, but year is also a MySQL reserved keyword and should be escaped for consistency and to avoid potential issues.
`description` VARCHAR(255) NULL,
- year INT NOT NULL,
+ `year` INT NOT NULL,📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| `description` VARCHAR(255) NULL, | |
| year INT NOT NULL, | |
| `description` VARCHAR(255) NULL, | |
| `year` INT NOT NULL, |
🤖 Prompt for AI Agents
In src/main/resources/db/migration/V1__initial.sql around lines 6 to 7, the
column name year is a MySQL reserved word and should be escaped like the other
identifiers; update the column definition to use backticks around year (e.g.,
`year`) so the DDL parses reliably, and ensure any other references to this
column in the same migration or subsequent SQL use the escaped identifier
consistently.
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From what I can see there are no tests that test the endpoints or the security control. Maybe they haven't been pushed. But other than that I can't complain. Just follow Code Rabbits change requests and it's perfect.
3 participants
Fullfilled assignement requirements. Spring security added to the rest api and the api is configured with 3 routes, one open and 2 that require specific roles for them to be accessible. All 3 routes are testable with the included Movie.http file
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