Json

.gitignore

@@ -40,3 +40,4 @@ shadir/shadir
 shadirconcurrent/shadirconcurrent
 pinger/pinger 
 datediff/datediff
+example-json/example-json

example-json/main.go

@@ -0,0 +1,80 @@
+package main
+
+import "encoding/json"
+import "fmt"
+import "os"
+import "strings"
+
+type ReturnsData struct {
+	Returns []float64
+	Message string `json:"other"`
+}
+
+func displayJSON(jsonData string) interface{} {
+	var obj interface{}
+	err := json.Unmarshal([]byte(jsonData), &obj)
+	if err != nil {
+		panic(err)
+	}
+	fmt.Printf("%T\n  ", obj)
+	fmt.Println(obj)
+	return obj
+}
+
+func main() {
+	displayJSON(`
+{
+	"key": "value",
+	"keyint": 10,
+	"key2": "value2"
+}
+`)
+	displayJSON(`
+[1,2,3,4]
+`)
+
+	obj := displayJSON(`500`)
+	v, ok := obj.(float64)
+	if !ok {
+		v = 0
+	}
+	x := 100 + v
+	fmt.Println(x)
+
+	bs, err := json.Marshal([]int{1, 2, 3})
+	if err != nil {
+		panic(err)
+	}
+	fmt.Println(string(bs))
+
+	err = json.NewEncoder(os.Stdout).Encode([]int{4, 5, 6})
+	if err != nil {
+		panic(err)
+	}
+
+	decoded := new(interface{})
+	err = json.NewDecoder(strings.NewReader(`
+{
+	"key": "value",
+	"keyint": 10,
+	"key2": "value2"
+}
+`)).Decode(decoded)
+	if err != nil {
+		panic(err)
+	}
+	fmt.Println(*decoded)
+
+	returns := new(ReturnsData)
+	err = json.NewDecoder(strings.NewReader(`
+	{
+		"returns": [1,2,3,4],
+		"other": "plop"
+	}
+	`)).Decode(returns)
+	if err != nil {
+		panic(err)
+	}
+	fmt.Println(*returns)
+
+}