Basic implementation of client: render qa code and scan from mobile app
diff --git a/core/client/client.go b/core/client/client.go
new file mode 100644
index 0000000..b7c8294
--- /dev/null
+++ b/core/client/client.go
@@ -0,0 +1,38 @@
+package main
+
+import (
+ "bytes"
+ "encoding/json"
+ "fmt"
+ "net/http"
+)
+
+type VPNApiClient struct {
+ addr string
+}
+
+type signReq struct {
+ Message []byte `json:"message"`
+}
+
+type signResp struct {
+ Signature []byte `json:"signature"`
+}
+
+func (c *VPNApiClient) Sign(message []byte) ([]byte, error) {
+ var data bytes.Buffer
+ if err := json.NewEncoder(&data).Encode(signReq{message}); err != nil {
+ return nil, err
+ }
+ client := &http.Client{}
+ r, err := client.Post(c.addr+"/api/sign", "application/json", &data)
+ if err != nil {
+ fmt.Println(111111)
+ return nil, err
+ }
+ resp := &signResp{}
+ if err := json.NewDecoder(r.Body).Decode(resp); err != nil {
+ return nil, err
+ }
+ return resp.Signature, nil
+}