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I'm working with an API that requires data encoded in base64. How can I encode a simple string in base64?
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Dart has a function in the package:crypto library, CryptoUtils. bytesToBase64 , which takes a list of bytes to encode as base64. In order to get the list of bytes from a Dart string, you can use the UTF8. encode() function in the dart:convert library.
If we were to Base64 encode a string we would follow these steps: Take the ASCII value of each character in the string. Calculate the 8-bit binary equivalent of the ASCII values. Convert the 8-bit chunks into chunks of 6 bits by simply re-grouping the digits.
To encode or decode Base64 in Dart, you can make use of the dart:convert library: import 'dart:convert'; For base64 decoding, use one of these 2 methods: String base64.
Double-base-64-encoded strings are regular, because there is a finite amount of byte sequences that properly base64-encode a base64-encoded message. You can check if something is base64-encoded once since you can validate each set of four characters.
There is no need to use the crypto package since the core libraries provide built-in support for base64 encoding and decoding.
https://api.dartlang.org/stable/2.1.0/dart-convert/dart-convert-library.html
import 'dart:convert'; main() { final str = "Hello world"; final bytes = utf8.encode(str); final base64Str = base64.encode(bytes); print(base64Str); } If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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