something wrong while I config traffic-split using admin-api

[Mar1usSo]

Hello everyone,
I got error while I config traffic-split using admin-api.

Seems admin-api can not resolve "!" correctly in my reqeust.

{
"error_msg": "failed to check the configuration of plugin traffic-split err: failed to validate the 'vars' expression: invalid operator '!'"
}

Here is my postman setting:
URL:http://127.0.0.1:9080/apisix/admin/routes/395163938729231314
Body:
{
"id": "395163938729231314",
"name": "traffic-split-test",
"methods": [
"GET",
"POST",
"PUT",
"DELETE",
"PATCH",
"HEAD",
"OPTIONS",
"CONNECT",
"TRACE"
],
"plugins": {
"proxy-rewrite": {
"host": "proxy.test.com"
},
"traffic-split": {
"disable": false,
"rules": [
{
"match": [
{
"vars": [
[
"cookie_user_id",
"!",
"1"
]
]
}
],
"weighted_upstreams": [
{
"upstream_id": "368682855116571384",
"weight": 10
}
]
}
]
}
},
"uri": "/*",
"hosts": [
"demo.test.com"
],
"vars": [
[
"http_sssss",
"IN",
[
"asdfadsf"
]
],
[
"http_X-APP-ID",
"IN",
[
"872cc0ff763db3950176427d11fa0222",
"I872cc172771dafae017729e71f3b0059",
"872cc172765bf5090176607739b00024",
"2798807be64a46a8aa3f8883e48e27b4",
"40ef0ca977344fec9b168b17ea242bd6",
"6a470ab1696c4390b8863542c93ee723",
"37135e7b41594fdba3057dcf63971b3f",
"7f6b62ead3b0428da94efb379cccdf82",
"2bac6bdbda1c494b95d4cbf26def50cd"
]
]
],
"status": 1,
"upstream_id": "368682855116571384"
}
Result:
{
"error_msg": "failed to check the configuration of plugin traffic-split err: failed to validate the 'vars' expression: invalid operator '!'"
}

Would you please help to check if sonething wrong in my request?

Thanks

[tokers]

You should have an operator after !, see https://github.com/api7/lua-resty-expr.

[Mar1usSo]

You are right.
But There is a operation in apisix-dashboard:
'page.route.reverse': 'Reverse the result(!)',see https://github.com/apache/apisix-dashboard/blob/6b86ff4c4ee7b129cfeda48108fe5d4f5a2e7c6c/web/src/pages/Route/locales/en-US.ts

[Mar1usSo]

Maybe dash-board should not used "!" separated
Thanks & close this question