fix: TS types

packages/server/src/services/Attachments/AttachmentsApplication.ts

@@ -6,6 +6,7 @@ import { AttachmentUploadPipeline } from './S3UploadPipeline';
 import { LinkAttachment } from './LinkAttachment';
 import { UnlinkAttachment } from './UnlinkAttachment';
 import { getAttachmentPresignedUrl } from './GetAttachmentPresignedUrl';
+import type { Multer } from 'multer';
 
 @Service()
 export class AttachmentsApplication {
@@ -31,18 +32,18 @@ export class AttachmentsApplication {
   private getPresignedUrlService: getAttachmentPresignedUrl;
 
   /**
-   *
-   * @returns
+   * Express middleware for uploading attachments to an S3 bucket.
+   * @returns {Multer}
    */
-  get uploadPipeline() {
+  get uploadPipeline(): Multer {
     return this.uploadPipelineService.uploadPipeline();
   }
 
   /**
-   * Uploads
+   * Saves the metadata of uploaded document to S3 on database.
    * @param {number} tenantId
    * @param {} file
-   * @returns
+   * @returns {Promise<Document>}
    */
   public upload(tenantId: number, file: any) {
     return this.uploadDocumentService.upload(tenantId, file);

packages/server/src/services/Attachments/S3UploadPipeline.ts

@@ -1,15 +1,21 @@
 import multer from 'multer';
+import type { Multer } from 'multer'
 import multerS3 from 'multer-s3';
 import { s3 } from '@/lib/S3/S3';
 import { Service } from 'typedi';
+import config from '@/config';
 
 @Service()
 export class AttachmentUploadPipeline {
-  uploadPipeline() {
+  /**
+   * Express middleware for uploading attachments to an S3 bucket.
+   * It utilizes the multer middleware for handling multipart/form-data, specifically for file uploads.
+   */
+  public uploadPipeline(): Multer {
     return multer({
       storage: multerS3({
         s3,
-        bucket: process.env.AWS_BUCKET,
+        bucket: config.s3.bucket,
         contentType: multerS3.AUTO_CONTENT_TYPE,
         metadata: function (req, file, cb) {
           cb(null, { fieldName: file.fieldname });