wx-sdk 0.0.9

A Wechat SDK written in Rust
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57

use roxmltree::Node;

use crate::SdkResult;

use super::{
    xmlutil::{get_number_from_root, get_text_from_root},
    ReceivedMessageParser,
};

pub struct VoiceMessage {
    pub msg_id: u64,
    pub format: String,
    pub media_id: String,
    pub recognition: Option<String>,
}

impl ReceivedMessageParser for VoiceMessage {
    type ReceivedMessage = VoiceMessage;

    fn from_xml(node: &Node) -> SdkResult<Self::ReceivedMessage> {
        let msg_id = get_number_from_root::<u64>(node, "MsgId")?;
        let media_id = get_text_from_root(node, "MediaId")?;
        let format = get_text_from_root(node, "Format")?;
        let recognition = node.descendants().find(|n| n.has_tag_name("Recognition"));
        let recognition = recognition
            .map(|n| n.text())
            .map(|t| t.map(|s| s.to_string()))
            .unwrap_or_else(|| None);
        Ok(VoiceMessage {
            msg_id,
            format: format.to_owned(),
            media_id: media_id.to_owned(),
            recognition,
        })
    }
}

#[test]
pub fn parse() -> SdkResult<()> {
    use roxmltree::Document;
    let s = "<xml>
    <ToUserName><![CDATA[toUser]]></ToUserName>
    <FromUserName><![CDATA[fromUser]]></FromUserName>
    <CreateTime>1357290913</CreateTime>
    <MsgType><![CDATA[voice]]></MsgType>
    <MediaId><![CDATA[media_id]]></MediaId>
    <Format><![CDATA[Format]]></Format>
    <MsgId>1234567890123456</MsgId>
  </xml> 
  ";
    let node = Document::parse(&s)?;
    let msg = VoiceMessage::from_xml(&node.root())?;
    assert_eq!(msg.media_id, "media_id");
    assert_eq!(msg.recognition, None);
    assert_eq!(msg.msg_id, 1234567890123456);
    Ok(())
}