APM irule event to check device serial number against and api.

Hi,

You can create a HTTP auth to request API.

if you have to manage in irule the response, you can create an virtual server to convert request / response from API to be managed in APM AAA HTTP Auth server.

Access Policy --> HTTP auth --> virtual server with irule --> API server as pool

the irule will insert in cookie / header information you can retrieve in variables.

I wrote this irule applied to a virtual server API converter for air watch.

when HTTP_REQUEST {
    set AWuser [URI::decode [URI::query [HTTP::uri] AWuser]]
    set AWpwd [URI::decode [URI::query [HTTP::uri] AWpwd]]
    set AwTenantCode [URI::decode [URI::query [HTTP::uri] AwTenantCode]]
    set b64auth [b64encode "$AWuser:$AWpwd"]
    HTTP::uri [HTTP::path][URI::query [HTTP::uri] uid]
    HTTP::header insert "aw-tenant-code" $AwTenantCode
    HTTP::header insert "Content-Type" "application/json"
    HTTP::header insert "Authorization" "Basic $b64auth"
    unset AWuser
    unset AWpwd
    unset b64auth
    unset AwTenantCode 
}

when HTTP_RESPONSE {

   Trigger collection for up to 1MB of data
  if {[HTTP::header exists "Content-Length"] && [HTTP::header "Content-Length"] <= 1048576}{
    set content_length [HTTP::header "Content-Length"]
  } else {
      set content_length 1048576
  }
   Check if $content_length is not set to 0
  if { ([HTTP::status] == 200) && ($content_length > 0)} {
    HTTP::collect $content_length
  }
}

when HTTP_RESPONSE_DATA {
     do stuff with the payload
    set payload [HTTP::payload]
    foreach str {UserName Platform} {
        set strlengh [string length $str ]
        set fieldstart [expr {[string first "\"$str\":\"" $payload] +$strlengh +4}]
        set fieldEnd [expr {[string first "\"," $payload $fieldstart] -1}]
        set field [string range $payload $fieldstart $fieldEnd]
        HTTP::header insert $str $field
        HTTP::cookie insert name $str value $field
    }
}