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main.go
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main.go
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/*
* Finite Cloud API Emulator
*
* Author: Robin Huiser robin@technisys.com
*/
package main
import (
"bytes"
"context"
"embed"
"log"
"net/http"
"os"
"github.com/dimiro1/banner"
"github.com/joho/godotenv"
"github.com/robinhuiser/fca-emu/generator"
finite "github.com/robinhuiser/fca-emu/server"
"github.com/robinhuiser/fca-emu/util"
_ "github.com/go-sql-driver/mysql"
_ "github.com/lib/pq"
_ "github.com/mattn/go-sqlite3"
)
//go:embed swagger-ui/* api/openapi.yaml
var staticFiles embed.FS
//go:embed banner.txt
var appBanner string
var (
version = "dev"
commit = "none"
date = "unknown"
builtBy = "unknown"
)
const (
// Defaults
DB_VENDOR = "sqlite3"
APP_LISTEN_ADDRESS = "0.0.0.0"
APP_LISTEN_PORT = "8080"
NR_GENERATED_ENTITIES = 20
NR_BRANCHES_PER_BANK = 50
)
func main() {
// We can ignore if there is no .dotenv (container runtime)
godotenv.Load()
// Display the banner & version
banner.Init(os.Stdout, true, true, bytes.NewBufferString(appBanner))
log.Printf("version %s, commit %s, built at %s by %s", version, commit, date, builtBy)
// Set application variables
appListenAddress := util.GetEnvString("EMULATOR_LISTEN_ADDRESS", APP_LISTEN_ADDRESS)
appListenPort := util.GetEnvString("EMULATOR_LISTEN_PORT", APP_LISTEN_PORT)
// Connect to database
client, err := util.GetDatabaseClient(util.GetEnvString("DB_VENDOR", DB_VENDOR))
if err != nil {
log.Fatalf("failed opening connection to database: %v", err)
}
log.Printf("connected to %s database", util.GetEnvString("DB_VENDOR", DB_VENDOR))
defer client.Close()
// Run the migration tool
if err := client.Schema.Create(context.Background()); err != nil {
log.Fatalf("failed creating schema resources: %v", err)
}
log.Printf("database migration run successfully")
// Generate Mock data
if err := generator.Generate(
util.GetEnvInt("NUMBER_OF_ENTITIES", NR_GENERATED_ENTITIES),
util.GetEnvInt("BRANCHES_PER_BANK", NR_BRANCHES_PER_BANK),
client); err != nil {
log.Fatalf("failed creating testdata: %v", err)
}
AccountsApiService := finite.NewAccountsApiService(client)
AccountsApiController := finite.NewAccountsApiController(AccountsApiService)
CacheApiService := finite.NewCacheApiService()
CacheApiController := finite.NewCacheApiController(CacheApiService)
CardsApiService := finite.NewCardsApiService()
CardsApiController := finite.NewCardsApiController(CardsApiService)
EntityApiService := finite.NewEntityApiService()
EntityApiController := finite.NewEntityApiController(EntityApiService)
ExchangeApiService := finite.NewExchangeApiService()
ExchangeApiController := finite.NewExchangeApiController(ExchangeApiService)
ProductsApiService := finite.NewProductsApiService()
ProductsApiController := finite.NewProductsApiController(ProductsApiService)
StatementApiService := finite.NewStatementApiService()
StatementApiController := finite.NewStatementApiController(StatementApiService)
StatementsApiService := finite.NewStatementsApiService()
StatementsApiController := finite.NewStatementsApiController(StatementsApiService)
TransactionsApiService := finite.NewTransactionsApiService()
TransactionsApiController := finite.NewTransactionsApiController(TransactionsApiService)
router := finite.NewRouter(AccountsApiController,
CacheApiController,
CardsApiController,
EntityApiController,
ExchangeApiController,
ProductsApiController,
StatementApiController,
StatementsApiController,
TransactionsApiController)
// Embed the Swagger UI within the Go binary
router.PathPrefix("/").Handler(http.FileServer(http.FS(staticFiles)))
// Start server
log.Printf("Swagger UI is available on http://%s:%s/swagger-ui", appListenAddress, appListenPort)
log.Printf("OpenAPI specification is available on http://%s:%s/api/openapi.yaml", appListenAddress, appListenPort)
log.Printf("server is listening on %s:%s", appListenAddress, appListenPort)
log.Fatal(http.ListenAndServe(appListenAddress+":"+appListenPort, router))
}