Created Appointment creation flow.

src/main/java/net/gepafin/tendermanagement/util/Utils.java

@@ -51,6 +51,7 @@ import org.springframework.web.context.request.RequestContextHolder;
 import org.springframework.web.context.request.ServletRequestAttributes;
 
 import javax.crypto.Cipher;
+import javax.crypto.Mac;
 import javax.crypto.spec.IvParameterSpec;
 import javax.crypto.spec.SecretKeySpec;
 
@@ -580,4 +581,35 @@ public class Utils {
         // Clear the RequestContextHolder after task execution
         RequestContextHolder.resetRequestAttributes();
     }
+
+	public static String generateAuthTokenForLoginToOdessa() {
+
+		try {
+			// Your weak secret key
+			String secretKey = GepafinConstant.AUTH_JWT_SECRET_KEY;
+
+			// Header
+			String header = GepafinConstant.JWT_ALGO_HEADER;
+			String encodedHeader = Base64.getUrlEncoder().withoutPadding().encodeToString(header.getBytes(StandardCharsets.UTF_8));
+
+			// Payload
+			String payload = "{\"iat\":" + (System.currentTimeMillis() / 1000) + "}";
+			String encodedPayload = Base64.getUrlEncoder().withoutPadding().encodeToString(payload.getBytes(StandardCharsets.UTF_8));
+
+			// Combine header and payload
+			String dataToSign = encodedHeader + "." + encodedPayload;
+
+			// Sign the token manually
+			Mac mac = Mac.getInstance(GepafinConstant.HMAC_ALGO);
+			SecretKeySpec secretKeySpec = new SecretKeySpec(secretKey.getBytes(StandardCharsets.UTF_8), GepafinConstant.HMAC_ALGO);
+			mac.init(secretKeySpec);
+			byte[] signatureBytes = mac.doFinal(dataToSign.getBytes(StandardCharsets.UTF_8));
+			String signature = Base64.getUrlEncoder().withoutPadding().encodeToString(signatureBytes);
+
+			// Return the final JWT
+			return dataToSign + "." + signature;
+		} catch (Exception e) {
+			throw new RuntimeException("Failed to generate JWT token", e);
+		}
+	}
 }