cloudflare/framework/
json_utils.rs

1use serde::de;
2
3/// Serializes a vector of bytes as a base64 encoded string.
4pub fn serialize_base64_str<S>(val: &[u8], serializer: S) -> Result<S::Ok, S::Error>
5where
6    S: serde::Serializer,
7{
8    serializer.serialize_str(&base64::encode(val))
9}
10
11/// Deserializes a base64 encoded string as a vector of bytes.
12pub fn deserialize_base64_str<'de, D>(deserializer: D) -> Result<Vec<u8>, D::Error>
13where
14    D: serde::Deserializer<'de>,
15{
16    struct Base64Visitor;
17
18    impl<'de> de::Visitor<'de> for Base64Visitor {
19        type Value = Vec<u8>;
20
21        fn expecting(&self, formatter: &mut ::std::fmt::Formatter) -> ::std::fmt::Result {
22            write!(formatter, "base64 ASCII text")
23        }
24
25        fn visit_str<E>(self, v: &str) -> Result<Self::Value, E>
26        where
27            E: de::Error,
28        {
29            base64::decode(v).map_err(de::Error::custom)
30        }
31    }
32
33    deserializer.deserialize_str(Base64Visitor)
34}