> For the complete documentation index, see [llms.txt](https://olavo-moreira.gitbook.io/studies/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://olavo-moreira.gitbook.io/studies/spring-webflux-mongodb/endpoints-com-mongo-reativo/post/findbytitle-query-method.md).

# findByTitle (Query method)

### **Repository**

```java
Flux<Post> findPostByTitleIgnoreCase(String text);
```

### **Service**

**Antes**

```java
public List<PostDTO> findByTitle(String text) {
    List<PostDTO> result = repository.searchTitle(text).stream().map(x -> new PostDTO(x)).toList();
    return result;
}
```

**Depois**

```java
public Flux<PostDTO> findByTitle(String text) {
    Flux<Post> result;

    if (text == null || text.isEmpty()) {
        result = repository.findAll();
    } else {
        result = repository.findPostByTitleIgnoreCase(text);
    }

    return result.map(PostDTO::new);
}
```

### **Controller**

**Antes**

```java
@GetMapping(value = "/titlesearch")
public ResponseEntity<List<PostDTO>> findByTitle(@RequestParam(value = "text", defaultValue = "") String text) throws UnsupportedEncodingException {
    text = URL.decodeParam(text);
    List<PostDTO> list = service.findByTitle(text);
    return ResponseEntity.ok(list);
}
```

**Depois**

```java
@GetMapping(value = "/titlesearch")
public Flux<PostDTO> findByTitle(@RequestParam(value = "text", defaultValue = "") String text) throws UnsupportedEncodingException {
    text = URL.decodeParam(text);
    return service.findByTitle(text);
}
```


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