flowfull 0.1.0

Async Rust client for Flowfull and Flowless-compatible backends
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
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153

use std::path::PathBuf;

use reqwest::{Method, header::HeaderMap};
use serde::de::DeserializeOwned;

use crate::{Result, client::FlowfullClient, request::RequestOptions};

#[derive(Debug, Clone)]
pub enum UploadFile {
    Path(PathBuf),
    Bytes {
        bytes: Vec<u8>,
        file_name: String,
        mime: Option<String>,
    },
}

impl UploadFile {
    pub fn path(path: impl Into<PathBuf>) -> Self {
        Self::Path(path.into())
    }

    pub fn bytes(bytes: impl Into<Vec<u8>>, file_name: impl Into<String>) -> Self {
        Self::Bytes {
            bytes: bytes.into(),
            file_name: file_name.into(),
            mime: None,
        }
    }

    pub fn bytes_with_mime(
        bytes: impl Into<Vec<u8>>,
        file_name: impl Into<String>,
        mime: impl Into<String>,
    ) -> Self {
        Self::Bytes {
            bytes: bytes.into(),
            file_name: file_name.into(),
            mime: Some(mime.into()),
        }
    }
}

pub struct UploadBuilder {
    client: FlowfullClient,
    endpoint: String,
    file: UploadFile,
    field: String,
    file_name: Option<String>,
    headers: HeaderMap,
    form_fields: Vec<(String, String)>,
    options: RequestOptions,
}

impl UploadBuilder {
    pub(crate) fn new(client: FlowfullClient, endpoint: String, file: UploadFile) -> Self {
        Self {
            client,
            endpoint,
            file,
            field: "file".to_string(),
            file_name: None,
            headers: HeaderMap::new(),
            form_fields: Vec::new(),
            options: RequestOptions::default(),
        }
    }

    pub fn field(mut self, field: impl Into<String>) -> Self {
        self.field = field.into();
        self
    }

    pub fn file_name(mut self, file_name: impl Into<String>) -> Self {
        self.file_name = Some(file_name.into());
        self
    }

    pub fn form_field(mut self, key: impl Into<String>, value: impl Into<String>) -> Self {
        self.form_fields.push((key.into(), value.into()));
        self
    }

    pub fn header(mut self, key: impl AsRef<str>, value: impl AsRef<str>) -> Result<Self> {
        let key = reqwest::header::HeaderName::from_bytes(key.as_ref().as_bytes())
            .map_err(|err| crate::FlowfullError::Config(format!("invalid header name: {err}")))?;
        let value = reqwest::header::HeaderValue::from_str(value.as_ref()).map_err(|err| {
            crate::FlowfullError::Config(format!("invalid header value for upload option: {err}"))
        })?;
        self.headers.insert(key, value);
        Ok(self)
    }

    pub fn options(mut self, options: RequestOptions) -> Self {
        self.options = options;
        self
    }

    pub async fn send<T>(self) -> Result<T>
    where
        T: DeserializeOwned,
    {
        let mut form = reqwest::multipart::Form::new();
        for (key, value) in self.form_fields {
            form = form.text(key, value);
        }

        let part = match self.file {
            UploadFile::Path(path) => {
                let bytes = tokio::fs::read(&path).await?;
                let name = self
                    .file_name
                    .or_else(|| {
                        path.file_name()
                            .map(|name| name.to_string_lossy().into_owned())
                    })
                    .unwrap_or_else(|| "file".to_string());
                let mime = mime_guess::from_path(&path)
                    .first_or_octet_stream()
                    .to_string();
                reqwest::multipart::Part::bytes(bytes)
                    .file_name(name)
                    .mime_str(&mime)?
            }
            UploadFile::Bytes {
                bytes,
                file_name,
                mime,
            } => {
                let name = self.file_name.unwrap_or(file_name);
                let part = reqwest::multipart::Part::bytes(bytes).file_name(name);
                if let Some(mime) = mime {
                    part.mime_str(&mime)?
                } else {
                    part
                }
            }
        };

        form = form.part(self.field, part);

        let mut options = self.options;
        for (key, value) in self.headers.iter() {
            options.headers.insert(key.clone(), value.clone());
        }

        let response = self
            .client
            .raw_multipart_request(Method::POST, &self.endpoint, form, options)
            .await?;
        self.client.parse_json_response(response)
    }
}