nocobase/docs/guide/kernel-principle/installation-startup.md
2021-10-31 09:58:25 +08:00

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---
order: 3
---
# Installation and Startup Process
## Installation
```bash
yarn nocobase init
```
- app.constructor()
- app.parse()
- yarn nocobase init
Initialize the installation
- app.load()
Load the configuration
- app.exitAsync('beforeLoad')
Hook before all configurations are loaded
- app.pluginManager.load()
Load the configurations of all active plugins in order
- Load the configuration of plugin-collections
- Add app.on('init') listener
- db.getModel('collections').load()
Import the collections table configuration into db.table()
- app.db.sync({force: false})
Execute sync again to create the data table configured in the collections table
- app.exitAsync('afterLoad')
All hooks after the configuration is loaded
- app.db.sync({force: true})
Generate data tables, fields, indexes, etc. according to the configuration
- app.emitAsync('init')
Perform all init listeners, generally initialized data operations
- trigger the init event of plugin-collections and the data table is created
- app.stop()
End
## Startup
```bash
yarn nocobase start --init --sync
# --init for quick installation at startup
# --sync to quickly build or update tables when app.collection() is updated in the development environment
```
- app.constructor()
- app.parse()
- yarn nocobase start
Initialize the installation
- app.load()
Load the configuration
- app.exitAsync('beforeLoad')
Hook before all configurations are loaded
- app.pluginManager.load()
Load the configurations of all active plugins in order
- Load the configuration of plugin-collections
- Add app.on('start') listener
- db.getModel('collections').load()
Import the collections table configuration into db.table(), no need for db.sync in the start process
- app.exitAsync('afterLoad')
All hooks after configuration loading
- app.db.sync({force: false})
yarn nocobase start --sync to quickly build or update tables when there are updates
yarn nocobase start --init quick init
- app.emitAsync('init')
yarn nocobase start --init shortcut init
- app.exitAsync('start')
Execute all start listeners, usually reading some necessary data from the data table
- app.listen()
Start the http server