JSON contains Special Characters - coldfusion

Question

My JSON contains special characters like: new line, double quotes etc.
I am creating the JSON using Coldfusion server side script. But in case of special chars I get error due to wrongly formatted JSON. What should I do in such a case?
<cfoutput>
[
<cfset loopIndex=0>
<cfloop query="qEvents">
<cfif loopIndex NEQ 0>,</cfif>
<cfif is_allday EQ 1>
<cfset isallDayEvent = "true">
<cfelse>
<cfset isallDayEvent = "false">
</cfif>
{
"title": "#title#",
"start": "#DateFormat(start_date_time,'mm/dd/yyyy')# #TimeFormat(start_date_time,'hh:mm tt')#",
"end": "#DateFormat(end_date_time,'mm/dd/yyyy')# #TimeFormat(end_date_time,'hh:mm tt')#",
"allDay": #isallDayEvent#,
"eventID": "#event_id#",
"duration": "#duration#",
"note": "#note#",
"location": "#location#"
}
<cfset loopIndex=loopIndex+1>
</cfloop>
]
</cfoutput>

Answer 1

Rather than writing the JSON by hand, you should generate an array of structs and then use serializeJSON() to convert it to a valid JSON string:
<cfset thisArrayBecomesJSON = [] />
<cfloop query="qEvents">
<cfif is_allday EQ 1>
<cfset isAllDayEvent = "true" />
<cfelse>
<cfset isAllDayEvent = "false" />
</cfif>
<cfset thisEvent = {
'title' = title,
'start' = dateFormat( start_date_time, 'mm/dd/yyyy' ) & timeFormat( start_date_time, 'hh:mm tt' ),
'end' = dateFormat( end_date_time, 'mm/dd/yyyy' ) & timeFormat( end_date_time, 'hh:mm tt' ),
'allDay' = isAllDayEvent,
'eventID' = event_id,
'duration' = duration,
'note' = note,
'location' = location
} />
<cfset arrayAppend( thisArrayBecomesJSON, thisEvent ) />
</cfloop>
<cfset myJSON = serializeJSON( thisArrayBecomesJSON ) />
<cfoutput>#myJSON#</cfoutput>
This is untested, but I think it should work ok - there may be some syntax errors.