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Travis Hendrix Query Validation Rules
I am trying to query validation rules in apex. I was trying to do it with a callout but keep getting an error: No operation available for request. Here is the code I am using.
HTTP h = new HTTP();
HTTPRequest req = new HTTPRequest();
req.setMethod('GET');
req.setHeader('Content-Type', 'text/xml');
req.setHeader('SOAPAction', 'ValidationRule');
String b = '';
b += '<?xml version="1.0" ?>';
b += '<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:urn="urn:metadata.tooling.soap.sforce.com">';
b += '<soapenv:Header>';
b += '<urn:SessionHeader>';
b += '<urn:sessionId>'+UserInfo.getSessionId()+'</urn:sessionId>';
b += '</urn:SessionHeader>';
b += '</soapenv:Header>';
b += '<soapenv:Body>';
b += '<urn:ValidationRule>';
b += '</urn:ValidationRule>';
b += '</soapenv:Body>';
b += '</soapenv:Envelope>';
req.setBody(b);
req.setCompressed(false);
req.setEndpoint('https://na34.salesforce.com/services/Soap/T/35.0');
HTTPResponse resp = h.send(req);
System.debug(resp.getBody());
Andrew Fawcett from FinancialForce built an Apex wrapper around the Tooling API that utilizes SOAP; should be perfect for this use case:
https://github.com/afawcett/apex-toolingapi