How do I convert a Base64 image url string to a png/jpg image file?

[aberba]

On Thursday, 30 July 2020 at 12:28:08 UTC, Adam D. Ruppe wrote:
> On Thursday, 30 July 2020 at 12:22:46 UTC, aberba wrote:
>> [...]
>
> I don't think I wrote it as a library yet, but the idea is 
> pretty simple: they all start with "data:" so you look for that.
>
> Then there's a type after that, so you read the string until 
> the next ; character. It will be like image/png or image/jpeg.
>
> Then there's the semicolon and the string "base64,".
>
> After that, the rest of the string is base64 data.
>
> ```
> import std.base64;
> ubyte[] data = Base64.decode(rest_of_string);
> ```
>
> And now that you have the data you can write it to a file:
>
⅞iii> import std.file;
> std.file.write("filename.png", data);
> ```
>
> And that should make the file you want.

Thank Adam.