xieyao
96711ffb35
- Go web server using Gin framework - Proxy FRED economic data API - Support series, observations, search, releases endpoints
81 lines
2.4 KiB
Go
81 lines
2.4 KiB
Go
package main
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import (
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"fmt"
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"log"
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"os"
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"os/signal"
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"syscall"
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"fred-api/config"
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"fred-api/handlers"
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"github.com/gin-gonic/gin"
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"github.com/joho/godotenv"
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)
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func main() {
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if err := godotenv.Load(); err != nil {
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log.Println("No .env file found, using default config")
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}
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cfg := config.Load()
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fredHandler := handlers.NewFREDHandler(cfg)
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gin.SetMode(gin.ReleaseMode)
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router := gin.Default()
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router.Use(func(c *gin.Context) {
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c.Header("Access-Control-Allow-Origin", "*")
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c.Header("Access-Control-Allow-Methods", "GET, POST, OPTIONS")
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c.Header("Access-Control-Allow-Headers", "Content-Type, Authorization")
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if c.Request.Method == "OPTIONS" {
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c.AbortWithStatus(204)
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return
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}
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c.Next()
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})
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router.GET("/health", fredHandler.HealthCheck)
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api := router.Group("/api/v1")
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{
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api.GET("/series", fredHandler.GetSeries)
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api.GET("/series/observations", fredHandler.GetObservations)
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api.GET("/series/search", fredHandler.SearchSeries)
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api.GET("/releases", fredHandler.GetReleases)
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api.GET("/releases/dates", fredHandler.GetReleaseDates)
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api.GET("/release/series", fredHandler.GetReleaseSeries)
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}
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go func() {
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fmt.Printf("FRED API Server starting on :%s\n", cfg.ServerPort)
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fmt.Printf("FRED API Base URL: %s\n", cfg.FREDBaseURL)
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fmt.Println("\nAvailable endpoints:")
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fmt.Println(" GET /health - Health check")
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fmt.Println(" GET /api/v1/series - Get series info")
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fmt.Println(" GET /api/v1/series/observations - Get observations")
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fmt.Println(" GET /api/v1/series/search - Search series")
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fmt.Println(" GET /api/v1/releases - Get all releases")
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fmt.Println(" GET /api/v1/releases/dates - Get release dates")
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fmt.Println(" GET /api/v1/release/series - Get series in release")
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fmt.Println("")
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fmt.Println("Examples:")
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fmt.Println(" curl 'http://localhost:" + cfg.ServerPort + "/api/v1/series?series_id=GNPCA'")
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fmt.Println(" curl 'http://localhost:" + cfg.ServerPort + "/api/v1/series/observations?series_id=GNPCA&limit=10'")
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fmt.Println(" curl 'http://localhost:" + cfg.ServerPort + "/api/v1/series/search?search_text=GDP'")
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fmt.Println("")
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if err := router.Run(":" + cfg.ServerPort); err != nil {
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log.Fatalf("Failed to start server: %v", err)
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}
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}()
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quit := make(chan os.Signal, 1)
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signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM)
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<-quit
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fmt.Println("\nShutting down server...")
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}
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