parcelwing 0.1.0

Official Rust SDK for the Parcel Wing API.
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
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131

use std::collections::HashMap;

use serde::de::DeserializeOwned;
use serde::Serialize;

use crate::error::{ApiError, Error, ErrorPayload};

#[derive(Clone, Debug)]
pub(crate) struct HttpClient {
    api_key: String,
    base_url: String,
    client: reqwest::Client,
    default_headers: HashMap<String, String>,
}

impl HttpClient {
    pub(crate) fn new(
        api_key: String,
        base_url: String,
        client: reqwest::Client,
        default_headers: HashMap<String, String>,
    ) -> Self {
        Self {
            api_key,
            base_url,
            client,
            default_headers,
        }
    }

    pub(crate) async fn get<T>(
        &self,
        path: &str,
        query: Option<Vec<(&str, String)>>,
    ) -> Result<T, Error>
    where
        T: DeserializeOwned,
    {
        let request = self.client.get(self.url(path));
        let request = self.apply_headers(request);

        let request = if let Some(query) = query {
            request.query(&query)
        } else {
            request
        };

        self.send(request).await
    }

    pub(crate) async fn post<T, B>(&self, path: &str, body: &B) -> Result<T, Error>
    where
        T: DeserializeOwned,
        B: Serialize + ?Sized,
    {
        let request = self
            .apply_headers(self.client.post(self.url(path)))
            .json(body);
        self.send(request).await
    }

    pub(crate) async fn patch<T, B>(&self, path: &str, body: &B) -> Result<T, Error>
    where
        T: DeserializeOwned,
        B: Serialize + ?Sized,
    {
        let request = self
            .apply_headers(self.client.patch(self.url(path)))
            .json(body);
        self.send(request).await
    }

    pub(crate) async fn delete<T>(&self, path: &str) -> Result<T, Error>
    where
        T: DeserializeOwned,
    {
        let request = self.apply_headers(self.client.delete(self.url(path)));
        self.send(request).await
    }

    async fn send<T>(&self, request: reqwest::RequestBuilder) -> Result<T, Error>
    where
        T: DeserializeOwned,
    {
        let response = request.send().await?;
        let status = response.status();
        let text = response.text().await?;

        if !status.is_success() {
            if let Ok(mut payload) = serde_json::from_str::<ErrorPayload>(&text) {
                payload.error.status = status.as_u16();
                return Err(Error::Api(Box::new(payload.error)));
            }

            if let Ok(mut api_error) = serde_json::from_str::<ApiError>(&text) {
                api_error.status = status.as_u16();
                return Err(Error::Api(Box::new(api_error)));
            }

            return Err(Error::Http {
                status: status.as_u16(),
                body: text,
            });
        }

        serde_json::from_str(&text).map_err(Error::Decode)
    }

    fn apply_headers(&self, request: reqwest::RequestBuilder) -> reqwest::RequestBuilder {
        let mut request = request
            .header(reqwest::header::ACCEPT, "application/json")
            .header(
                reqwest::header::AUTHORIZATION,
                format!("Bearer {}", self.api_key),
            )
            .header(
                "X-ParcelWing-SDK",
                format!("rust/{}", env!("CARGO_PKG_VERSION")),
            );

        for (key, value) in &self.default_headers {
            request = request.header(key, value);
        }

        request
    }

    fn url(&self, path: &str) -> String {
        format!("{}{}", self.base_url, path)
    }
}