| layout | default |
|---|---|
| title | Chapter 3: Flow Design, Versioning, and Debugging |
| nav_order | 3 |
| parent | Activepieces Tutorial |
Welcome to Chapter 3: Flow Design, Versioning, and Debugging. In this part of Activepieces Tutorial: Open-Source Automation, Pieces, and AI-Ready Workflow Operations, you will build an intuitive mental model first, then move into concrete implementation details and practical production tradeoffs.
This chapter covers practical design and diagnostics patterns for stable automation flows.
- design trigger/action chains with clearer failure boundaries
- use run debugging views effectively for incident triage
- apply versioning practices that reduce production regressions
- improve flow maintainability as complexity grows
| Area | Baseline Practice |
|---|---|
| trigger strategy | choose trigger type based on latency and source behavior |
| action composition | keep steps modular and explicitly scoped |
| run diagnostics | review per-step input/output in failed runs |
| versioning discipline | publish controlled versions and avoid ad-hoc hot edits |
You now have practical guardrails for building and troubleshooting higher-confidence flows.
Next: Chapter 4: Piece Development Framework
The .eslintrc module in .eslintrc.json handles a key part of this chapter's functionality:
{
"root": true,
"ignorePatterns": ["**/*", "deploy/**/*"],
"overrides": [
{
"files": ["*.ts", "*.tsx", "*.js", "*.jsx"],
"rules": {
"no-restricted-imports": [
"error",
{
"patterns": ["lodash", "lodash/*"]
}
]
}
},
{
"files": ["*.ts", "*.tsx"],
"extends": ["plugin:@typescript-eslint/recommended"],
"rules": {
"@typescript-eslint/no-extra-semi": "error",
"@typescript-eslint/no-unused-vars": "warn",
"@typescript-eslint/no-explicit-any": "warn",
"no-extra-semi": "off"
}
},
{
"files": ["*.js", "*.jsx"],
"rules": {
"@typescript-eslint/no-extra-semi": "error",
"no-extra-semi": "off"
}
},
{
"files": ["*.spec.ts", "*.spec.tsx", "*.spec.js", "*.spec.jsx"],
"env": {This module is important because it defines how Activepieces Tutorial: Open-Source Automation, Pieces, and AI-Ready Workflow Operations implements the patterns covered in this chapter.
The package module in package.json handles a key part of this chapter's functionality:
{
"name": "activepieces",
"version": "0.79.2",
"rcVersion": "0.80.0-rc.0",
"packageManager": "bun@1.3.3",
"scripts": {
"prebuild": "node tools/scripts/install-bun.js",
"serve:frontend": "turbo run serve --filter=web",
"serve:backend": "turbo run serve --filter=api",
"serve:engine": "turbo run serve --filter=@activepieces/engine",
"serve:worker": "turbo run serve --filter=worker",
"push": "turbo run lint && git push",
"dev": "node tools/scripts/install-bun.js && turbo run serve --filter=web --filter=api --filter=@activepieces/engine --filter=worker --ui stream",
"dev:backend": "turbo run serve --filter=api --filter=@activepieces/engine --ui stream",
"dev:frontend": "turbo run serve --filter=web --filter=api --filter=@activepieces/engine --ui stream",
"start": "node tools/setup-dev.js && npm run dev",
"test:e2e": "npx playwright test --config=packages/tests-e2e/playwright.config.ts",
"db-migration": "npx turbo run db-migration --filter=api --",
"check-migrations": "npx turbo run check-migrations --filter=api",
"lint": "turbo run lint",
"lint-dev": "turbo run lint --filter='!@activepieces/piece-*' --force -- --fix",
"cli": "npx ts-node -r tsconfig-paths/register --project packages/cli/tsconfig.json packages/cli/src/index.ts",
"create-piece": "npx ts-node -r tsconfig-paths/register --project packages/cli/tsconfig.json packages/cli/src/index.ts pieces create",
"create-action": "npx ts-node -r tsconfig-paths/register --project packages/cli/tsconfig.json packages/cli/src/index.ts actions create",
"create-trigger": "npx ts-node -r tsconfig-paths/register --project packages/cli/tsconfig.json packages/cli/src/index.ts triggers create",
"sync-pieces": "npx ts-node -r tsconfig-paths/register --project packages/cli/tsconfig.json packages/cli/src/index.ts pieces sync",
"build-piece": "npx ts-node -r tsconfig-paths/register --project packages/cli/tsconfig.json packages/cli/src/index.ts pieces build",
"publish-piece-to-api": "npx ts-node -r tsconfig-paths/register --project packages/cli/tsconfig.json packages/cli/src/index.ts pieces publish piece",
"publish-piece": "npx ts-node -r tsconfig-paths/register --project tools/tsconfig.tools.json tools/scripts/pieces/publish-piece.ts",
"workers": "npx ts-node -r tsconfig-paths/register --project packages/cli/tsconfig.json packages/cli/src/index.ts workers",
"pull-i18n": "crowdin pull --config crowdin.yml",
"push-i18n": "crowdin upload sources",
"i18n:extract": "i18next --config packages/web/i18next-parser.config.js",
"bump-translated-pieces": "npx ts-node --project tools/tsconfig.tools.json tools/scripts/pieces/bump-translated-pieces.ts",
"bump-all-pieces-patch-version": "npx ts-node --project tools/tsconfig.tools.json tools/scripts/pieces/bump-all-pieces-patch-version.ts"This module is important because it defines how Activepieces Tutorial: Open-Source Automation, Pieces, and AI-Ready Workflow Operations implements the patterns covered in this chapter.
The .typos module in .typos.toml handles a key part of this chapter's functionality:
[files]
extend-exclude = [
".git/",
"**/database/**",
"packages/ui/core/src/locale/",
# French
"packages/pieces/community/wedof/src/",
]
ignore-hidden = false
[default]
extend-ignore-re = [
"[0-9A-Za-z]{34}",
"name: 'referal'",
"getRepository\\('referal'\\)",
"label: 'FO Language', value: 'fo'",
"649c83111c9cbe6ba1d4cabe",
"hYy9pRFVxpDsO1FB05SunFWUe9JZY",
"lod6JEdKyPlvrnErdnrGa",
]
[default.extend-identifiers]
"crazyTweek" = "crazyTweek"
"optin_ip" = "optin_ip"
# Typos
"Github" = "GitHub"
This module is important because it defines how Activepieces Tutorial: Open-Source Automation, Pieces, and AI-Ready Workflow Operations implements the patterns covered in this chapter.
flowchart TD
A[.eslintrc]
B[package]
C[.typos]
A --> B
B --> C