57 lines
1.7 KiB
Markdown
57 lines
1.7 KiB
Markdown
##### Rest server
|
|
|
|
**File: [`cmd/simplegovd/main.go`](https://github.com/cosmos/cosmos-sdk/blob/fedekunze/module_tutorial/examples/simpleGov/cmd/simplegovd/main.go)**
|
|
|
|
The `simplegovd` command will run the daemon server as a background process. First, let us create some `utils` functions:
|
|
|
|
```go
|
|
// cmd/simplegovd/main.go
|
|
// SimpleGovAppInit initial parameters
|
|
var SimpleGovAppInit = server.AppInit{
|
|
AppGenState: SimpleGovAppGenState,
|
|
AppGenTx: server.SimpleAppGenTx,
|
|
}
|
|
|
|
// SimpleGovAppGenState sets up the app_state and appends the simpleGov app state
|
|
func SimpleGovAppGenState(cdc *wire.Codec, appGenTxs []json.RawMessage) (appState json.RawMessage, err error) {
|
|
appState, err = server.SimpleAppGenState(cdc, appGenTxs)
|
|
if err != nil {
|
|
return
|
|
}
|
|
return
|
|
}
|
|
|
|
func newApp(logger log.Logger, db dbm.DB) abci.Application {
|
|
return app.NewSimpleGovApp(logger, db)
|
|
}
|
|
|
|
func exportAppState(logger log.Logger, db dbm.DB) (json.RawMessage, error) {
|
|
dapp := app.NewSimpleGovApp(logger, db)
|
|
return dapp.ExportAppStateJSON()
|
|
}
|
|
```
|
|
|
|
Now, let us define the command for the daemon server within the `main()` function:
|
|
|
|
```go
|
|
// cmd/simplegovd/main.go
|
|
func main() {
|
|
cdc := app.MakeCodec()
|
|
ctx := server.NewDefaultContext()
|
|
|
|
rootCmd := &cobra.Command{
|
|
Use: "simplegovd",
|
|
Short: "Simple Governance Daemon (server)",
|
|
PersistentPreRunE: server.PersistentPreRunEFn(ctx),
|
|
}
|
|
|
|
server.AddCommands(ctx, cdc, rootCmd, SimpleGovAppInit,
|
|
server.ConstructAppCreator(newApp, "simplegov"),
|
|
server.ConstructAppExporter(exportAppState, "simplegov"))
|
|
|
|
// prepare and add flags
|
|
rootDir := os.ExpandEnv("$HOME/.simplegovd")
|
|
executor := cli.PrepareBaseCmd(rootCmd, "BC", rootDir)
|
|
executor.Execute()
|
|
}
|
|
``` |