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ManjunathManjunath 

EncodingUtil- Encode and Decode

Hi,

 

I have a string which I am decoding using base64Decode method, then am encoding it back using base64Encode. Then ultimately I should have the initial string, but in certain case its been truncated.

 

Any idea, why is this happening or am I missing here something?

 

Thanks.

AndrewFisher_TGPAndrewFisher_TGP

Do you have an example of teh text that isn't decoding back correctly?  Is there any special characters that may be causing an issue?
ManjunathManjunath

Hi,

 

I have no idea. That string in encoded in .net

 

Thanks,

 
AndrewFisher_TGPAndrewFisher_TGP

Here is my code I use in my org - I both encode & decode: 

 

trigger tr_encodeContactString on Contact (before insert, before update) {
        
    list<contact> contactTrigger = new list<contact>();
    for (Contact c: trigger.new){
        
        if (c.BlobDecode__c != NULL || c.BlobDecode__c != ''){
        Blob d = EncodingUtil.base64Decode(c.BlobDecode__c); //decoded string
            c.StringDecode__c = d.tostring(); //field = value of blob converted back to string
        }
  
        if (c.StringEncode__c != NULL || c.StringEncode__c != ''){
            Blob b = blob.valueof(c.StringEncode__c); //decoded string
            c.BlobEncode__c = EncodingUtil.base64Encode(b);
        }
    } 
    
}

 

This enables me to pass the blob back and forwards to our .NET program - I tested it within SF and special characters like * ^ etc don't seem to cause an error... I assume your encode/decode is similar?
megha1.3923740238483918E12megha1.3923740238483918E12
Hiii
I am facing an issue regarding this EncodingUtil.base64Encode function.
I have a field on visualforce page with the save button.
I am encrypting this field using crypto.encrypt and then encoding it using above function to save in database.
I saved the same value 3 4 times nd evry tym a different entry is saved in dB.
Ny idea ??
does this function compute different values at different times??
Roshni RahulRoshni Rahul
Hi,

string before = 'Testing base 64 encode';
    
    // create a blob from our parameter value before we send it as part of the url
    Blob beforeblob = Blob.valueOf(before);
    
    // base64 encode the blob that contains our url param value
    string paramvalue = EncodingUtil.base64Encode(beforeblob);
    
    // print out the encoded value to the debug log so we can see it before/after base64 encode
    System.debug(before + ' is now encoded as: ' + paramvalue);
        
    // take the base64 encoded parameter and create base64 decoded Blob from it
    Blob afterblob = EncodingUtil.base64Decode(paramvalue);
    
    // Convert the blob back to a string and print it in the debug log 
    System.debug(paramvalue + 'is now decoded as: ' + afterblob.toString());
    string againEncode = EncodingUtil.base64Encode(afterblob);
    System.debug(afterblob.toString() +'####' +againEncode);

I have tried this code. But there is no issue like no string is truncated to it.
 
VICKY_SFDCVICKY_SFDC
STEPS:

1. CLASSIC MODE-->DOCUMENTS-->UPLOAD PDF

2. DEVELOPER CONSOLE-->EXECUTE THIS QUERY

select id from document //you get ID like this==> 0155g000000Up6bAAC
 
3)
blob x = blob.valueof('0155g000000Up6bAAC');
string s = EncodingUtil.base64Encode(x);
system.debug('s:' + s);

blob y = EncodingUtil.base64Decode(s);
system.debug('y:' + y.toString());