Read the input into a buffer so it can be Unmarshal'ed twice

serve.go

@@ -3,6 +3,7 @@ package main
 import (
 	"encoding/json"
 	"fmt"
+	"io/ioutil"
 	"net/http"
 )
 
@@ -11,24 +12,22 @@ import (
 func index(w http.ResponseWriter, r *http.Request) {
 	if r.Method == "POST" {
 
-		mcOpt := &Option{}
+		body, err := ioutil.ReadAll(r.Body)
-		bsOpt := &Option{}
-
-		err := json.NewDecoder(r.Body).Decode(&mcOpt)
 		if err != nil {
 			fmt.Printf("Error: %s\n", err)
 		}
 
+		var bsOpt, mcOpt Option
+		json.Unmarshal(body, &bsOpt)
+		json.Unmarshal(body, &mcOpt)
+
 		mcOpt.PriceMonteCarlo()
 
 		options := make(map[string]Option)
-		options["MonteCarlo"] = *mcOpt
+		options["MonteCarlo"] = mcOpt
-		options["BlackScholes"] = *bsOpt
+		options["ClosedForm"] = bsOpt
 
 		json.NewEncoder(w).Encode(options)
-		if err != nil {
-			fmt.Printf("Error: %v\n", err)
-		}
 
 	} else if r.Method == "GET" {
 		fmt.Fprintf(w, "Hello go!") // To be updated
@@ -36,7 +35,6 @@ func index(w http.ResponseWriter, r *http.Request) {
 
 }
 
-
 func main() {
 	http.HandleFunc("/", index)
 	http.ListenAndServe(":8080", nil)