Add registerAuthorizer to wasm

core/version/version.go

@@ -2,5 +2,5 @@
 //====== THIS IS AUTOGENERATED FILE. DO NOT MODIFY ========
 
 package version
-const VERSIONSTR = "v1.10.0-120-ga72a4ee1"
+const VERSIONSTR = "v1.10.0-93-gf7075dc7"
 

wasmsdk/auth_txn.go

@@ -0,0 +1,55 @@
+//go:build js && wasm
+// +build js,wasm
+
+package main
+
+import (
+	"fmt"
+	"syscall/js"
+
+	"github.com/0chain/gosdk/core/sys"
+)
+
+// Declare a type for the callback function
+type AuthCallbackFunc func(msg string) string
+
+// Variable to store the callback function
+var authCallback AuthCallbackFunc
+
+// Register the callback function
+func registerAuthorizer(this js.Value, args []js.Value) interface{} {
+	// Store the callback function
+	authCallback = parseAuthorizerCallback(args[0])
+
+	sys.Authorize = func(msg string) (string, error) {
+		return authCallback(msg), nil
+	}
+
+	return nil
+}
+
+// Use the stored callback function
+func callAuth(this js.Value, args []js.Value) interface{} {
+	fmt.Println("callAuth is called")
+	if len(args) == 0 {
+		return nil
+	}
+
+	if authCallback != nil {
+		msg := args[0].String()
+		result, _ := sys.Authorize(msg)
+		fmt.Println("auth is called, result:", result)
+		return js.ValueOf(result)
+	}
+
+	return nil
+}
+
+// Parse the JavaScript callback function into Go AuthorizerCallback type
+func parseAuthorizerCallback(jsCallback js.Value) AuthCallbackFunc {
+	return func(msg string) string {
+		// Call the JavaScript callback function from Go
+		result := jsCallback.Invoke(msg)
+		return result.String()
+	}
+}

wasmsdk/demo/index.html

@@ -159,6 +159,7 @@ <h2>please download zcn.wasm from https://github.com/0chain/gosdk/releases/lates
       <button id="btnSplitKeys">SplitKeys</button>
       <button id="btnSetWalletInfo">SetWalletInfo</button>
       <button id="btnSetAuthUrl">SetAuthUrl</button>
+      <button id="btnRegAuth">regAuth</button>
     </span>
     <br>
     <div id="splitKey">
@@ -276,7 +277,7 @@ <h2>please download zcn.wasm from https://github.com/0chain/gosdk/releases/lates
         alert(e)
       }
     })
-
+    
     let allocations = []
     let blobbers = []
     let files = []
@@ -898,5 +899,23 @@ <h2>please download zcn.wasm from https://github.com/0chain/gosdk/releases/lates
       }
     })
 
+    onClick('btnRegAuth', async () => {
+       // Define the callback function in JavaScript
+      const authCallback = function (msg) {
+          return `Authorized: ${msg}`;
+      };
+
+      // Register the callback function from JavaScript to Go
+      const registerAuthorizer = goWasm.sdk.registerAuthorizer;
+      registerAuthorizer(authCallback);
+
+
+      // call the callAuth to see if the auth is set properly
+      // Use the stored callback function from Go
+	    const message = "Hello, World!";
+	    const result = goWasm.sdk.callAuth(message);
+	    console.log(result); // Output: "Authorized: Hello, World!"
+    })
+
   </script>
 </body>

wasmsdk/jsbridge/func.go

@@ -31,15 +31,18 @@ func BindFunc(global js.Value, jsFuncName string, fn interface{}) error {
 func BindAsyncFuncs(global js.Value, fnList map[string]interface{}) {
 
 	for jsFuncName, fn := range fnList {
-		jsFunc, err := promise(fn)
+		if jsFuncName == "registerAuthorizer" || jsFuncName == "callAuth" {
+			global.Set(jsFuncName, fn)
+		} else {
+			jsFunc, err := promise(fn)
 
-		if err != nil {
-			log.Println(jsFuncName, err)
-		}
+			if err != nil {
+				log.Println("bridge promise failed:", jsFuncName, err)
+			}
 
-		global.Set(jsFuncName, jsFunc)
+			global.Set(jsFuncName, jsFunc)
+		}
 	}
-
 }
 
 func BindFuncs(global js.Value, fnList map[string]interface{}) {

wasmsdk/proxy.go

@@ -242,9 +242,11 @@ func main() {
 				"refreshJwtToken":  refreshJwtToken,
 
 				//split key
-				"splitKeys":     splitKeys,
-				"setWalletInfo": setWalletInfo,
-				"setAuthUrl":    setAuthUrl,
+				"splitKeys":          splitKeys,
+				"setWalletInfo":      setWalletInfo,
+				"setAuthUrl":         setAuthUrl,
+				"registerAuthorizer": js.FuncOf(registerAuthorizer),
+				"callAuth":           js.FuncOf(callAuth),
 			})
 
 			fmt.Println("__wasm_initialized__ = true;")