I'd like to url-encode some Text (e.g., replace each space with a %20, etc.). I found "HTTP" Network.HTTP.Base.urlEncode and could use that, but I'm wondering if there's something else that's normally used in the Yesod ecosystem.
Unfortunately, due to the complexity of URL escaping, the real answer is "it depends." There are slightly different rules for the percent encoding of path segments and query strings, for example.
I don't know exactly what you're trying to encode, but I'd recommend sticking to the http-types package. One place to start would be urlEncode, though there are many other functions in that packages (such as encodePathSegments mentioned by @jamshidh) which are worth looking at.
As I understand it, URI encoding is complicated. However for my simple case, I was able to get by with the uri-encode package.
All I needed was:
encode :: String -> String
As you can imagine, all it does it take a string, and give you back the URI-encoded version.
来源：https://stackoverflow.com/questions/20675038/in-the-yesod-ecosystem-what-is-the-best-way-to-urlencode-some-text