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//! Corporate bond issuance data from Eastmoney datacenter.
//!
//! Uses `RPT_BOND_ISSUE` report to fetch corporate bond issuance records.
use crate::client::AkShareClient;
use crate::error::Result;
use crate::types::BondSnapshot;
use crate::types::value_ext::ValueExt;
impl AkShareClient {
/// Fetch corporate bond issuance data.
///
/// Returns bond issuance records with yield information from the
/// Eastmoney datacenter (`RPT_BOND_ISSUE` report).
pub async fn bond_corporate_yields(&self, limit: usize) -> Result<Vec<BondSnapshot>> {
let data = self
.dc_fetch_all(
"RPT_BOND_ISSUE",
"ALL",
"",
"ISSUE_DATE",
"-1",
limit.max(1) as i64,
1,
&[],
)
.await?;
let today = crate::util::today_iso();
let items: Vec<BondSnapshot> = data
.into_iter()
.take(limit)
.filter_map(|v| {
let symbol = v
.str_field(&["SECURITY_CODE", "BOND_CODE", "SECCODE"])?
.to_string();
if symbol.is_empty() {
return None;
}
let name = v.str_or(
&["SECURITY_NAME_ABBR", "BOND_NAME", "SECNAME", "SHORT_NAME"],
&symbol,
);
let date = v
.str_field(&["ISSUE_DATE", "DECLAREDATE"])
.unwrap_or(&today);
let close = v
.f64_field(&[
"ISSUE_PRICE",
"PAR_VALUE",
"FACE_VALUE",
"CURRENT_BOND_PRICE",
])
.unwrap_or(100.0);
let yield_rate =
v.f64_field(&["COUPON_RATE", "INTEREST_RATE", "YIELD_RATE", "ACTUAL_RATE"]);
Some(BondSnapshot {
symbol,
name,
date: date.get(..10).unwrap_or(date).to_string(),
close,
change_pct: 0.0,
yield_rate,
credit_rating: None,
})
})
.collect();
Ok(items)
}
}