Automatic push from FunctionsAPI

README.md

@@ -1,2 +1 @@
-# 31a240d816fd47e69b2353dfb36f8166
-
+# go hello-world

go.mod

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+module example.com/main
+
+go 1.17
+
+require github.com/OpenFunction/functions-framework-go v0.5.0

main.go

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+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"log"
+	"net/http"
+)
+
+// RequestData represents the JSON structure for incoming requests
+type RequestData struct {
+	A int `json:"a"`
+	B int `json:"b"`
+}
+
+// mainHandler handles HTTP requests and processes the data
+func mainHandler(w http.ResponseWriter, r *http.Request) {
+	log.Println("Function called with request")
+
+	// Decode the JSON body into the RequestData struct
+	var data RequestData
+	err := json.NewDecoder(r.Body).Decode(&data)
+	if err != nil {
+		http.Error(w, "Invalid JSON payload", http.StatusBadRequest)
+		log.Println("Error decoding JSON:", err)
+		return
+	}
+
+	log.Printf("Received data: %+v\n", data)
+
+	// Compute the result
+	result := data.A + data.B
+
+	// Prepare the response
+	response := map[string]int{"result": result}
+
+	// Encode the response as JSON
+	w.Header().Set("Content-Type", "application/json")
+	err = json.NewEncoder(w).Encode(response)
+	if err != nil {
+		http.Error(w, "Error encoding response", http.StatusInternalServerError)
+		log.Println("Error encoding JSON:", err)
+		return
+	}
+
+	log.Println("Response sent successfully")
+}
+
+func init() {
+	// Set up the HTTP server
+	http.HandleFunc("/", mainHandler)
+
+	fmt.Println("Server is running on http://localhost:8080")
+	log.Fatal(http.ListenAndServe(":8080", nil))
+}