Drift is a Temporal-powered, low-code workflow orchestration platform that enables users to design, deploy, and execute workflows using native reusable nodes.

Quick Start

For Developers

  1. Read Architecture Overview to understand the system
  2. Review High-Level Design for component design
  3. Study Contracts for integration details

For Architects

  1. Start with Architecture Overview
  2. Deep dive into High-Level Design
  3. Review Low-Level Design for implementation details

Documentation Structure

Getting Started

Key Features

  • Low-Code/No-Code: Create workflows on-the-fly with predefined native nodes
  • DSL-Based workflow: Defines the workflow structure by stitching nodes in a Directed Graph
  • Temporal Integration: For durable, fault-tolerant workflow execution
  • Workflow Versioning: Version-controlled workflows with hot deployments
  • Real-time Visibility: Live workflow execution tracking and monitoring
  • Widgetized Responses: UI-ready responses for human-in-the-loop workflows

Architecture at a Glance

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19

┌─────────────┐
│   Clients   │
└──────┬──────┘
       │
       ▼
┌──────────────┐      ┌──────────────┐      ┌──────────────┐
│ API Service  │─────>│   Temporal   │<─────│   Worker     │
│ (REST)       │      │   Cluster    │      │   Service    │
└──────────────┘      └──────────────┘      └──────┬───────┘
       │                                            │
       │                                            │
       └────────────────────┬───────────────────────┘
                            │
                ┌───────────┴────────────┐
                │                        │
           ┌────▼────┐             ┌────▼────┐
           │  HBase  │             │  Redis  │
           │(Storage)│             │ (Cache) │
           └─────────┘             └─────────┘

Technology Stack

Layer Technology Purpose
API Framework Dropwizard 2.0.27 REST services
Workflow Engine Temporal.io Orchestration
Storage HBase Persistent data
Caching Redis Sentinel Hot data cache
Scripting Groovy 2.4.13 Dynamic evaluation
DI Framework Google Guice 7.0.0 Dependency injection
Build Tool Maven 3.6+ Build automation
Runtime Java 17 JVM platform