data foramt

type

binary-foramt: use binary encoding, 使用某种二进制格式表示数据 text-format: use character encoding, 使用字符表示数据

binary format:

1. less space， compactly
   1. 不需要冗余的符号
   2. key可以代替

text-foramt:

1. human-readable

character-encoding:

1. ascii
2. uft-16
3. uft-18
4. uft-16

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POST /api/endpoint HTTP/1.1
Host: example.com
Content-Type: application/json; charset=utf-16
Content-Length: 34

{"name":"John Doe","age":30}

other

1. encode; serilization 关系； same: one format -> another format; differ: serialization is a specific instace

   1. econde: one format -> any format;
   2. serilization: any -> array of bytes

2. binary-format vs textual-format; json: “{“number”: 1}”

   1. binary-format: 非直接的字符串或者码位表示；

      00001 0001

   2. textual-fomat: 编码为一系列的字符或者码位

      U+27 U+7B U+22 U+61 U+22 U+3A U+31 U+7D U+27