feat: wip upload documents

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

@@ -0,0 +1,56 @@
+import { Inject, Service } from 'typedi';
+import { UploadDocument } from './UploadDocument';
+import { DeleteAttachment } from './DeleteAttachment';
+import { GetAttachment } from './GetAttachment';
+import { AttachmentUploadPipeline } from './S3UploadPipeline';
+
+@Service()
+export class AttachmentsApplication {
+  @Inject()
+  private uploadDocumentService: UploadDocument;
+
+  @Inject()
+  private deleteDocumentService: DeleteAttachment;
+
+  @Inject()
+  private getDocumentService: GetAttachment;
+
+  private uploadPipelineService: AttachmentUploadPipeline;
+
+  /**
+   * 
+   * @returns 
+   */
+  get uploadPipeline() {
+    return this.uploadPipelineService.uploadPipeline();
+  }
+
+  /**
+   *
+   * @param {number} tenantId
+   * @param {} file
+   * @returns
+   */
+  public upload(tenantId: number, file: any) {
+    return this.uploadDocumentService.upload(tenantId, file);
+  }
+
+  /**
+   * Deletes the give file attachment file key.
+   * @param {number} tenantId
+   * @param {string} documentKey
+   * @returns {Promise<void>}
+   */
+  public delete(tenantId: number, documentKey: string) {
+    return this.deleteDocumentService.delete(tenantId, documentKey);
+  }
+
+  /**
+   * Retrieves the document data.
+   * @param {number} tenantId
+   * @param {string} documentKey
+   */
+  public get(tenantId: number, documentKey: string) {
+    return this.getDocumentService.getAttachment(tenantId, documentKey);
+  }
+}

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

@@ -0,0 +1,19 @@
+import { DeleteObjectCommand } from '@aws-sdk/client-s3';
+import { s3 } from '@/lib/S3/S3';
+import { Service } from 'typedi';
+
+@Service()
+export class DeleteAttachment {
+  /**
+   * Deletes the give file attachment file key.
+   * @param {number} tenantId
+   * @param {string} filekey
+   */
+  async delete(tenantId: number, filekey: string): Promise<void> {
+    const params = {
+      Bucket: process.env.AWS_BUCKET,
+      Key: filekey,
+    };
+    await s3.send(new DeleteObjectCommand(params));
+  }
+}

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

@@ -0,0 +1,21 @@
+import { Service } from 'typedi';
+import { s3 } from '@/lib/S3/S3';
+import { GetObjectCommand } from '@aws-sdk/client-s3';
+
+@Service()
+export class GetAttachment {
+  /**
+   * Retrieves data of the given document key.
+   * @param {number} tenantId
+   * @param {string} filekey
+   */
+  async getAttachment(tenantId: number, filekey: string) {
+    const params = {
+      Bucket: process.env.AWS_BUCKET,
+      Key: filekey,
+    };
+    const data = await s3.send(new GetObjectCommand(params));
+
+    return data;
+  }
+}

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

@@ -0,0 +1,23 @@
+import multer from 'multer';
+import multerS3 from 'multer-s3';
+import { s3 } from '@/lib/S3/S3';
+import { Service } from 'typedi';
+
+@Service()
+export class AttachmentUploadPipeline {
+  uploadPipeline() {
+    return multer({
+      storage: multerS3({
+        s3,
+        bucket: process.env.AWS_BUCKET,
+        contentType: multerS3.AUTO_CONTENT_TYPE,
+        metadata: function (req, file, cb) {
+          cb(null, { fieldName: file.fieldname });
+        },
+        key: function (req, file, cb) {
+          cb(null, Date.now().toString());
+        },
+      }),
+    });
+  }
+}

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

@@ -0,0 +1,10 @@
+import { Service } from 'typedi';
+import { S3Client, PutObjectCommand } from '@aws-sdk/client-s3';
+
+@Service()
+export class UploadDocument {
+
+  async upload(tenantId: number, file: any) {
+    
+  }
+}