working on words

src/word/pipe/word.pipe.ts

@@ -0,0 +1,20 @@
+import {
+  HttpException,
+  HttpStatus,
+  Injectable,
+  PipeTransform,
+} from '@nestjs/common';
+import { WordService } from '../services/word.service';
+
+@Injectable()
+export class WordPipe implements PipeTransform {
+  constructor(private readonly wordService: WordService) {}
+
+  async transform(id: number) {
+    const word = await this.wordService.getById(id);
+    if (!word) {
+      throw new HttpException('Word not found', HttpStatus.NOT_FOUND);
+    }
+    return word;
+  }
+}