Check Empty Parameters in Nginx

1 year ago
Emily Johnson
1 minute

In nginx, you can use if statements to check if a parameter is empty. Here is an example code:

location /test {
    if ($arg_param = "") {
        return 400;
    }
    # 其他操作
}

In the example above, if the parameter “param” is empty, a 400 error will be returned. You can modify the if statement according to your needs. Please note that using if statements in nginx may impact performance, so it is recommended to avoid executing complex logic operations within if statements as much as possible.

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