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Adding dynamic QR code generator to ColdFusion program

Forum|Forum|2 years ago
February 28, 2024
1 reply
2818 views

When I took over the care of a CF intranet site, the Google chart API was being used to generate QR codes that are on employee badges; this won't be working for much longer and I need to find a replacement.

<cfimage source="#myImage#"

destination="c:/workgroups/webdata/badgecards/#BadgPhotoName#"

action="write"

overwrite="Yes">

<cfhttp url="https://chart.apis.google.com/chart?chs=160x160&cht=qr&chl=#urlencodedformat('http://www.ohrc.org/binkley/BadgeCard/PDFs/#Replace(BadgPhotoName,'.jpg','.pdf','All')#')#&chld=H|0"

result="qrcode"

getasbinary="yes">

<cfimage action="write"

destination="c:/workgroups/webdata/badgecards/qr/#Replace(BadgPhotoName,'.jpg','.png','All')#"

source="#qrcode.filecontent#"

overwrite="yes">

This is what the code looks like I found a new generator, but I haven't been able to get it to work correctly. The generator that I was looking at is goqr.me/api, but I was wondering if Adobe has something like that, that I could use?

This topic has been closed for replies.

Correct answer BKBK

Thank you - I'll give that a try.

Addendum: for the sake of rigour, I would add a try/catch to catch errors that arise when the download does not have image content-type

<cftry>
	<!--- Convert the binary to an image in ColdFusion --->
	<cfimage source="#downloadedBinary#" name="downloadedImage">
	
	<cfif isImage(downloadedImage)> 
		<!--- Use, preferably, replaceNoCase: think Jpg, JPG, jpg --->    
		<cfset jpg_to_png=replaceNoCase(BadgPhotoName,'.jpg','.png','all')>
	    <cfimage action="write" source="#downloadedImage#" destination="c:/workgroups/webdata/badgecards/qr/#jpg_to_png#">
	</cfif>
<cfcatch type="any">
	<!--- Handle any errors --->
</cfcatch>
</cftry>

BKBK

Community Expert

No, there are currently no facilities for generating QR codes in ColdFusion. You have to use a third-party QR code generator. Google will show you some, such as CFQRCode.

S

srouse72Author

Known Participant

I found a QR code generator to use, and it has worked great since I added it - until Sunday and not it isn't working. I copied the URL into a browser to make sure that the generator was working and it is, but the codes aren't printing on the badge card.

</cfif>

This is the code that is suddenly not working. Any suggestions would be greatly appreciated.

BKBK

Community Expert

Suggestion as a replacement for the code below the cfhttp tag:

<cfset downloadedBinary=cfhttp.fileContent>
<!--- Convert the binary to an image in ColdFusion --->
<cfimage source="#downloadedBinary#" name="downloadedImage">

<cfif isImage(downloadedImage)> 
	<!--- Use, preferably, replaceNoCase: think Jpg, JPG, jpg --->    
	<cfset jpg_to_png=replaceNoCase(BadgPhotoName,'.jpg','.png','all')>
    <cfimage action="write" source="#downloadedImage#" destination="c:/workgroups/webdata/badgecards/qr/#jpg_to_png#">
</cfif>

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