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ForceRookie
How to do REST API call based on Custom Settings data?
So, I have a Lightning Component, when changes occurs there, it will save on Custom Settings.
If Object__c = Opportunity and Value__c = Closed Won from CustomSettings, I have to find the Opportunity record that meets the condition. If the Opporutnity record has Notes and Attachments, it will be uploaded to AWS.
Should I do it on Controller class or another trigger or class?
Please help me if this is correct:
String formattedDateString = Datetime.now().format('EEE, dd MMM yyyy HH:mm:ss z'); String host = 's3.amazonaws.com/'; String method = 'PUT'; HttpRequest req = new HttpRequest(); Http http = new Http(); Set<Id> Ids = new Set<Id>(); for (Opportunity opp : [SELECT Id, Name FROM Opportunity WHERE IsClosed = true AND IsWon = true]) { Ids.add(opp.Id); } List<Attachment> att = [SELECT Id, Name, Body, ContentType FROM Attachment WHERE ParentId IN :Ids]; List<AWScredentialsSettings__c> values = [SELECT Id, ClientKey__c, SecretKey__c, BucketName__c FROM AWScredentialsSettings__c LIMIT 1]; if (!att.isEmpty() && !values.isEmpty()) { String bucketname = values[0].BucketName__c; String key = values[0].ClientKey__c; String secret = values[0].SecretKey__c; String attachmentBody = EncodingUtil.base64Encode(att[0].Body); String filename = att[0].Name; req.setMethod(method); req.setEndpoint('https://' + host + bucketname + '/' + filename); // The file should be uploaded to this path in AWS -- Opportunity/Salesforce Id/Secret Files/filename req.setHeader('Content-Length', String.valueOf(attachmentBody.length())); req.setHeader('Content-Encoding', 'UTF-8'); req.setHeader('Content-type', att[0].ContentType); req.setHeader('Connection', 'keep-alive'); req.setHeader('Date', formattedDateString); req.setHeader('ACL', 'public-read'); req.setBody(attachmentBody); String stringToSign = method+'\n\n\n'+ att[0].ContentType + '\n' + formattedDateString +'\n/'+ bucketname +'/' + filename; Blob mac = Crypto.generateMac('HMACSHA1', blob.valueof(stringToSign),blob.valueof(secret)); String signed = EncodingUtil.base64Encode(mac); String authHeader = 'AWS' + ' ' + secret + ':' + signed; req.setHeader('Authorization',authHeader); } HTTPResponse res = http.send(req); System.debug('*Resp:' + String.ValueOF(res.getBody())); System.debug('RESPONSE STRING: ' + res.toString()); System.debug('RESPONSE STATUS: ' + res.getStatus()); System.debug('STATUS_CODE: ' + res.getStatusCode()); }