hedera 0.4.0

Hedera SDK for Rust
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

use crate::{
    id::FileId,
    proto::{self, Query::Query_oneof_query, QueryHeader::QueryHeader, ToProto},
    query::{
        query::{QueryResponse, ToQueryProto},
        Query,
    },
    Client,
};
use failure::Error;
use try_from::{TryFrom, TryInto};

impl TryFrom<proto::FileGetContents::FileGetContentsResponse_FileContents> for Vec<u8> {
    type Err = Error;

    fn try_from(
        mut contents: proto::FileGetContents::FileGetContentsResponse_FileContents,
    ) -> Result<Self, Error> {
        Ok(contents.take_contents())
    }
}

pub struct QueryFileGetContents {
    file: FileId,
}

impl QueryFileGetContents {
    pub fn new(client: &Client, file: FileId) -> Query<Self> {
        Query::new(client, Self { file })
    }
}

impl QueryResponse for QueryFileGetContents {
    type Response = Vec<u8>;

    fn get(mut response: proto::Response::Response) -> Result<Self::Response, Error> {
        response
            .take_fileGetContents()
            .take_fileContents()
            .try_into()
    }
}

impl ToQueryProto for QueryFileGetContents {
    fn to_query_proto(&self, header: QueryHeader) -> Result<Query_oneof_query, Error> {
        let mut query = proto::FileGetContents::FileGetContentsQuery::new();
        query.set_header(header);
        query.set_fileID(self.file.to_proto()?);

        Ok(Query_oneof_query::fileGetContents(query))
    }
}