Convert String To Base64 Apex Salesforce

Hello friends, today we are going to discuss How to Convert String To Base64 Apex Salesforce. Base64 encoding is a method of converting binary data into a text-based format that consists of ASCII characters. This encoding is commonly used to represent binary data in contexts where only text-based data is allowed.

Base64 encoding works by dividing the binary data into groups of six bits, which are then represented as characters from a predefined set of 64 characters.

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Key Highlights :

1. Attachment Handling: When working with attachments, such as images or documents, you may need to encode the binary data to Base64 before storing it in Salesforce.
2. API Integration: Some external APIs require data to be sent in Base64 format, especially when dealing with binary data.
3. Security: Base64 encoding can be used to obfuscate sensitive data in certain situations.
4. Use the Blob.valueOf(stringToEncode) method to convert your string into a Blob.
5. Utilize the EncodingUtil.base64Encode(blobToEncode) method to get the Base64 representation.

Code :

Base64Converter.cls :

public class Base64Converter {
    public static String convertToBase64(String inputString) {
        // Convert the input string to a Blob
        Blob binaryData = Blob.valueOf(inputString);
        
        // Encode the Blob as a Base64 string
        String base64String = EncodingUtil.base64Encode(binaryData);
        
        return base64String;
    }
}

DecodeBase64Converter.cls :

public class DecodeBase64Converter {
    public static String decodeBase64(String base64Content) {
        // decode base64
        Blob blobContent = EncodingUtil.base64Decode(base64Content);
        // Blob to string
        String decodeBase64String = blobContent.toString();
        
        return decodeBase64String;
    }
}

Output :

Reference :

1. EncodingUtil Class