Coldfusion: Nested Loop on api call Array & Struct - coldfusion

Question

My function calls the SendGrid API. It returns an Array + structure. I'm writing a function to return a CFQuery dataset.
Goal
I want to pass a deserialized data object to my function and get a query dataset.
Here is my working code and the output:
<cfparam name="variables.ddata" default="#structnew()#">
<!--- API Call Code here --->
<cfset arr = DESerializeJSON(returnStruct.Filecontent) />
<cfdump var="#arr#">
My code:
<cfset arrayit(arrobj= arr) >
<cfdump var="#variables.ddata#" >
<cffunction name="arrayit" access="public" returntype="void">
<cfargument name="arrobj" type="array" required="yes">
<cfset var arr=arguments.arrobj />
<cfloop from="1" to = "#arrayLen(arr)#" index="i">
<cfif isValid("string", arr[i])>
<cfset StructInsert(variables.ddata, i, arr[i]) />
</cfif>
<cfif isstruct(arr[i])>
<cfset structit(structobj = arr[i]) />
</cfif>
</cfloop>
</cffunction>
<cffunction name="structit" access="public" returntype="void" output="yes">
<cfargument name="structobj" type="any" required="yes">
<cfset stru = arguments.structobj />
<cfloop collection="#stru#" item="S">
<cfif isValid("string", stru[S])>
<cfset StructInsert( variables.ddata, S, stru[S]) />
</cfif>
<cfif isarray(stru[S])>
<cfset arrayit(arrobj = stru[S]) >
</cfif>
</cfloop>
</cffunction>
Result:
When I add this line in my function
<cfif isstruct(stru[S])>
<cfset variables.ddata = arrayit(arrobj = stru[S]) />
</cfif>
An error occurs:
Element type is undefined in a CFML structure referenced as part of an
expression. The error occurred on line 71.
** Full Code**
<cfsavecontent variable="returnStruct.Filecontent">
[{"date":"2016-04-05","stats":[{"type":"category","name":"5","metrics":{"blocks":1,"bounce_drops":0,"bounces":9,"clicks":4,"deferred":1,"delivered":1,"invalid_emails":8,"opens":4,"processed":1,"requests":1,"spam_report_drops":0,"spam_reports":1,"unique_clicks":3,"unique_opens":3,"unsubscribe_drops":0,"unsubscribes":9}}]}]
</cfsavecontent>
<cfset arr = DESerializeJSON(returnStruct.Filecontent) />
<cfloop from="1" to="#arrayLen(arr)#" index="i">
<cfif isValid("string", arr[i])>
<cfset StructInsert(variables.ddata, i, arr[i],true ) />
</cfif>
<cfif isstruct(arr[i])>
<cfsavecontent variable="rr">
<cfdump var="#arr[i]#" label="Line 48 ERROR" >
</cfsavecontent>
<cfset NotifyErrorAdmin(emailBody = "#rr#" ,emailsubject = "Line 48") />
<cfset structit(structobj = arr[i]) />
</cfif>
<cfif isarray(arr[i])>
<cfsavecontent variable="rr">
<cfdump var="#arr[i]#" label="Line 54 ERROR" >
</cfsavecontent>
<cfset NotifyErrorAdmin(emailBody = "#rr#" ,emailsubject = "Line 54") />
<cfset arrayit(arrobj = arr[i]) >
</cfif>
</cfloop>
</cffunction>
<cffunction name = "structit" access="public" returntype="void" output="yes">
<cfargument name = "structobj" type="any" required="yes">
<cfset stru = arguments.structobj />
<cfloop collection="#stru#" item="S">
<cfif isValid("string", stru[S])>
<cfset StructInsert( variables.ddata, S, stru[S],true) />
</cfif>
<cfif isarray(stru[S])>
<cfsavecontent variable="rr">
<cfdump var="#stru[S]#" label="Line 86 ERROR" >
</cfsavecontent>
<cfset NotifyErrorAdmin(emailBody = "#rr#" ,emailsubject = "Line 87") />
<cfset arrayit(arrobj = stru[S]) >
</cfif>
<cfif isstruct(stru[S])>
<cfsavecontent variable="rr">
<cfdump var="#stru[S]#" label="Line 97 ERROR" >
</cfsavecontent>
<cfset NotifyErrorAdmin(emailBody = "#rr#" ,emailsubject = "Line 97") />
<cfset structit(structobj = stru[S]) />
</cfif>
</cfloop>
</cffunction>
ERROR

Answer 1

Your UDF arrayit accepts an argument of type array but when that condition is true then a struct is being passed so, the error.
i.e.,
<cfif isStruct(stru[S])>
<!--- This means stru[S] is a struct --->
<cfset variables.ddata = arrayit(arrobj = stru[S])>
<!--- arrObj should be of type 'array' --->
</cfif>
So, it should be:
<cfif isStruct(stru[S])>
<cfset variables.ddata = structit(structobj = stru[S])>
</cfif>
But, the error for this case will be different than that you have added.
Additionally,
StructInsert() takes an optional argument allowoverwrite which is by default false and according to docs:
if key exists and allowoverwrite = "False", ColdFusion throws an
exception.

Answer 2

I just did it! :) just wanted to share my project with you guys also hope it will help someone else also...
Request if you guys find anything you feel I can improve please share.
Special Thanks for response on my post. #Beginner & #Leigh
API Call Json Return: 1
<cfsavecontent variable="returnStruct.Filecontent">
[{"date":"2016-04-05","stats":[{"type":"category","name":"5","metrics":{"blocks":1,"bounce_drops":0,"bounces":9,"clicks":4,"deferred":1,"delivered":1,"invalid_emails":8,"opens":4,"processed":1,"requests":1,"spam_report_drops":0,"spam_reports":1,"unique_clicks":3,"unique_opens":3,"unsubscribe_drops":0,"unsubscribes":9}}]}]
</cfsavecontent>
<cfset arr = DESerializeJSON(returnStruct.Filecontent) />
CFC : 2
<cfcomponent>
<cfparam name="variables.qryclsvar" default="" type="any"/>
<cfparam name="variables.qryclsvarfg" default="true" type="any"/>
<cffunction name="APItoquery" access="public" returntype="any">
<cfargument name = "APIobj" type="any" required="yes">
<cfset var vAPIobj = arguments.APIobj />
<cfset var APIDATA = structnew() />
<cfset var APIDATAqr = "" />
<cftry>
<cfloop from="1" to="#arrayLen(vAPIobj)#" index="jj">
<cfif isarray(vAPIobj[jj])>
<cfset APIDATA = arrayit(structobj = vAPIobj[jj] ,datastruct = APIDATA) />
</cfif>
<cfif isstruct(vAPIobj[jj])>
<cfset APIDATA = structit(structobj = vAPIobj[jj],datastruct = APIDATA) />
</cfif>
<cfif NOT StructIsEmpty(APIDATA)>
<!--- Add in query object --->
<cfset APIDATAqr = structtoquery(structobj= APIDATA) />
<cfelse>
<cfset APIDATAqr ="NO Data Found!" />
</cfif>
</cfloop>
<cfcatch>
<cfdump var="#cfcatch#" label="APItoquery">
</cfcatch>
</cftry>
<cfreturn APIDATAqr>
</cffunction>
<cffunction name = "arrayit" access="public" returntype="any">
<cfargument name = "arrobj" type="any" required="yes">
<cfargument name = "datastruct" type="any" required="yes" >
<cfset var arr = arguments.arrobj />
<cfset var arrdata = arguments.datastruct />
<cftry>
<cfloop from="1" to="#arrayLen(arr)#" index="i">
<cfif ArrayContains(arr, i) >
<cfset StructInsert(arrdata, i, arr[i],true ) />
</cfif>
<cfif isarray(arr[i])>
<cfset arrdata = arrayit(arrobj = arr[i] ,datastruct = arrdata) >
</cfif>
<cfif isstruct(arr[i]) >
<cfset stdata = structit(structobj = arr[i],datastruct = arrdata) />
</cfif>
</cfloop>
<cfcatch>
<cfdump var="#cfcatch#" label="arrayit">
</cfcatch>
</cftry>
<cfreturn arrdata>
</cffunction>
<cffunction name = "structit" access="public" returntype="any" output="yes">
<cfargument name = "structobj" type="any" required="yes">
<cfargument name = "datastruct" type="any" required="yes">
<cfset var stru = arguments.structobj />
<cfset var stdata = arguments.datastruct />
<cftry>
<cfloop collection="#stru#" item="S">
<cfif isarray(stru[S])>
<cfset stdata = arrayit(arrobj = stru[S] ,datastruct = stdata) >
<cfelseif isstruct(stru[S]) >
<cfset stdata = structit(structobj = stru[S],datastruct = stdata) />
<cfelse>
<cfset StructInsert( stdata, S, stru[S],true) />
</cfif>
</cfloop>
<cfcatch>
<cfdump var="#cfcatch#" label="structit">
</cfcatch>
</cftry>
<cfreturn stdata>
</cffunction>
<cffunction name = "structtoquery" access="public" returntype="any" output="yes">
<cfargument name = "structobj" type="any" required="yes">
<cfset var vstructobj = arguments.structobj />
<cfset var cols = StructKeyList(vstructobj)>
<cfset var colstyp = "">
<cftry>
<cfif variables.qryclsvarfg EQ true>
<cfloop from="1" to="#listlen(cols,',')#" index="L">
<cfset colstyp = ListAppend(colstyp,"VarChar",",")>
</cfloop>
<!--- Create a new query. --->
<cfset variables.qryclsvar = queryNew(
'#cols#',
'#colstyp#'
)>
<cfset variables.qryclsvarfg = false>
</cfif>
<cfset QueryAddRow(variables.qryclsvar, 1)>
<cfloop collection="#vstructobj#" item="sd">
<cfset QuerySetCell(variables.qryclsvar, "#sd#", vstructobj[sd])>
</cfloop>
<cfcatch>
<cfdump var="#cfcatch#" label="structit">
</cfcatch>
</cftry>
<cfreturn variables.qryclsvar>
</cffunction>
</cfcomponent>
CFM : 3
<cfset sgObj = createobject("component","cfc.mycfc") />
<cfset mystruct = sgObj.APItoquery(APIobj= arr1) >
<cfdump var="#mystruct#" label="mystruct">
MA ! ....