App Install

App Installation Protocol

Defines the schemas for installing marketplace apps into tenant databases.

An "app install" injects metadata (objects, views, flows) + schema sync

into a tenant's isolated database.

Install pipeline:

Check compatibility (kernel version, existing objects, conflicts)
Validate app manifest
Apply schema changes (via deploy pipeline)
Seed initial data
Register app in tenant's metadata registry

Source: packages/spec/src/system/app-install.zod.ts

TypeScript Usage

import { AppCompatibilityCheck, AppInstallRequest, AppInstallResult, AppManifest } from '@objectstack/spec/system';
import type { AppCompatibilityCheck, AppInstallRequest, AppInstallResult, AppManifest } from '@objectstack/spec/system';

// Validate data
const result = AppCompatibilityCheck.parse(data);

AppCompatibilityCheck

App compatibility check result

Properties

Property	Type	Required	Description
compatible	`boolean`	✅	Whether the app is compatible
issues	`Object[]`	✅	Compatibility issues

AppInstallRequest

App install request

Properties

Property	Type	Required	Description
tenantId	`string`	✅	Target tenant ID
appId	`string`	✅	App identifier
configOverrides	`Record<string, any>`	optional	Configuration overrides
skipSeedData	`boolean`	✅	Skip seed data population

AppInstallResult

App install result

Properties

Property	Type	Required	Description
success	`boolean`	✅	Whether installation succeeded
appId	`string`	✅	Installed app identifier
version	`string`	✅	Installed app version
installedObjects	`string[]`	✅	Objects created/updated
createdTables	`string[]`	✅	Database tables created
seededRecords	`integer`	✅	Seed records inserted
durationMs	`integer`	optional	Installation duration
error	`string`	optional	Error message on failure

AppManifest

App manifest for marketplace installation

Properties

Property	Type	Required	Description
name	`string`	✅	App identifier (snake_case)
label	`string`	✅	App display label
version	`string`	✅	App version (semver)
description	`string`	optional	App description
minKernelVersion	`string`	optional	Minimum required kernel version
objects	`string[]`	✅	Object names provided
views	`string[]`	✅	View names provided
flows	`string[]`	✅	Flow names provided
hasSeedData	`boolean`	✅	Whether app includes seed data
seedData	`Record<string, any>[]`	✅	Seed data records
dependencies	`string[]`	✅	Required app dependencies

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