The course emphasizes using open-source tools (MinIO for S3-compatible storage, Let's Encrypt for certs, JWT for auth). No hidden cloud costs or proprietary SDKs.
func EncryptAndUpload(filePath string, password string) error { plaintext, _ := os.Open(filePath) defer plaintext.Close() // Derive key (scrypt - computationally expensive but free) salt := make([]byte, 16) rand.Read(salt) key, _ := scrypt.Key([]byte(password), salt, 32768, 8, 1, 32) The course emphasizes using open-source tools (MinIO for
reader, err := r.MultipartReader() if err != nil { http.Error(w, "Invalid multipart reader", http.StatusBadRequest) return } Instead, we implement
We will not upload a 10GB file in one request. Instead, we implement . -- SHA-256 for integrity storage_path TEXT
CREATE TABLE chunks ( file_id UUID REFERENCES file_transfers(id) ON DELETE CASCADE, chunk_index INT, chunk_hash TEXT, -- SHA-256 for integrity storage_path TEXT, -- Path in volume or S3 PRIMARY KEY (file_id, chunk_index) );