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Fix JSON parsing when Claude returns text preamble before menu JSON

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The Claude API sometimes returns explanatory text before the JSON
response even when instructed to return only JSON. Added extraction
logic to find the first { character and strip any leading text.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
John Mizerek 2026-03-01 10:30:21 -08:00
parent 9acf4aa511
commit ced4082993
1 changed files with 13 additions and 0 deletions
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13
api/setup/analyzeMenuUrl.cfm
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@ -1180,6 +1180,7 @@
<!--- Clean up JSON response --->
<cfset responseText = trim(responseText)>
<!--- Strip markdown code fences --->
<cfif left(responseText, 7) EQ "```json">
<cfset responseText = mid(responseText, 8, len(responseText) - 7)>
</cfif>
@ -1190,6 +1191,18 @@
<cfset responseText = left(responseText, len(responseText) - 3)>
</cfif>
<cfset responseText = trim(responseText)>
<!--- If response doesn't start with {, extract JSON object from text --->
<cfif left(responseText, 1) NEQ "{">
<cfset jsonStart = find("{", responseText)>
<cfif jsonStart GT 0>
<cfset responseText = mid(responseText, jsonStart, len(responseText) - jsonStart + 1)>
<!--- Strip any trailing text/fences after the JSON --->
<cfif right(trim(responseText), 3) EQ "```">
<cfset responseText = left(trim(responseText), len(trim(responseText)) - 3)>
</cfif>
<cfset responseText = trim(responseText)>
</cfif>
</cfif>
<!--- Remove trailing commas before ] or } --->
<cfset responseText = reReplace(responseText, ",(\s*[\]\}])", "\1", "all")>
<!--- Remove control characters that break JSON --->