simplify formatter code

This commit is contained in:
Dietmar Maurer 2018-12-05 18:22:56 +01:00
parent 4b26195c6a
commit c578fcd9e2
2 changed files with 58 additions and 44 deletions

View File

@ -1,17 +1,22 @@
use failure::*;
use serde_json::{json, Value};
use hyper::{Body, Response, StatusCode};
use hyper::header;
pub struct OutputFormatter {
pub format_result: fn(data: &Value) -> (Vec<u8>, &'static str),
pub format_result: fn(data: Result<Value, Error>) -> Response<Body>,
}
fn json_format_result(data: &Value) -> (Vec<u8>, &'static str) {
fn json_format_result(data: Result<Value, Error>) -> Response<Body> {
let content_type = "application/json;charset=UTF-8";
match data {
Ok(value) => {
let result = json!({
"data": data
"data": value
});
// todo: set result.total result.changes
@ -20,30 +25,65 @@ fn json_format_result(data: &Value) -> (Vec<u8>, &'static str) {
let raw = json_str.into_bytes();
(raw, content_type)
let mut response = Response::new(raw.into());
response.headers_mut().insert(
header::CONTENT_TYPE,
header::HeaderValue::from_static(content_type));
return response;
}
Err(err) => {
let mut response = Response::new(Body::from(err.to_string()));
response.headers_mut().insert(
header::CONTENT_TYPE,
header::HeaderValue::from_static(content_type));
*response.status_mut() = StatusCode::BAD_REQUEST;
return response;
}
}
}
pub static JSON_FORMATTER: OutputFormatter = OutputFormatter {
format_result: json_format_result,
};
fn extjs_format_result(data: &Value) -> (Vec<u8>, &'static str) {
fn extjs_format_result(data: Result<Value, Error>) -> Response<Body> {
let content_type = "application/json;charset=UTF-8";
let result = match data {
Ok(value) => {
let result = json!({
"data": data,
"data": value,
"success": true
});
// todo: set result.total result.changes
result
}
Err(err) => {
let mut errors = vec![];
errors.push(err.to_string());
let result = json!({
"errors": errors,
"success": false
});
result
}
};
let json_str = result.to_string();
let raw = json_str.into_bytes();
(raw, content_type)
let mut response = Response::new(raw.into());
response.headers_mut().insert(
header::CONTENT_TYPE,
header::HeaderValue::from_static(content_type));
response
}
pub static EXTJS_FORMATTER: OutputFormatter = OutputFormatter {

View File

@ -171,36 +171,10 @@ fn handle_sync_api_request(
let resp = params
.and_then(move |params| {
println!("GOT PARAMS {}", params);
/*
let when = Instant::now() + Duration::from_millis(3000);
let task = Delay::new(when).then(|_| {
println!("A LAZY TASK");
ok(())
});
tokio::spawn(task);
*/
let res = (info.handler)(params, info)?;
Ok(res)
}).then(move |result| {
match result {
Ok(ref value) => {
let (raw, content_type) = (formatter.format_result)(value);
Ok(Response::builder()
.status(StatusCode::OK)
.header(header::CONTENT_TYPE, content_type)
.body(Body::from(raw))?)
}
Err(err) => Err(http_err!(BAD_REQUEST, err.to_string()))
}
Ok((formatter.format_result)(result))
});
Box::new(resp)