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fix(minibf): bound UTxO block lookups #1204

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fix(minibf): bound UTxO block lookups #1204

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22 changes: 12 additions & 10 deletions crates/minibf/src/routes/utxos.rs
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
use axum::http::StatusCode;
use blockfrost_openapi::models::address_utxo_content_inner::AddressUtxoContentInner;
use futures::future::join_all;
use futures::stream::{self, StreamExt};
use itertools::Itertools;
use pallas::ledger::traverse::MultiEraOutput;
use std::collections::{HashMap, HashSet};
Expand All @@ -14,6 +14,8 @@ use crate::{
Facade,
};

const BLOCK_LOOKUP_CONCURRENCY: usize = 64;

pub async fn load_utxo_models<D>(
domain: &Facade<D>,
refs: HashSet<TxoRef>,
Expand All @@ -35,20 +37,20 @@ where
.map_err(|_| StatusCode::INTERNAL_SERVER_ERROR)?;

let tx_deps: Vec<_> = utxos.keys().map(|txoref| txoref.0).unique().collect();
let block_deps: HashMap<TxHash, BlockRefMeta> = join_all(tx_deps.iter().map(|tx| {
let tx = *tx;
async move {
let block_deps: HashMap<TxHash, BlockRefMeta> = stream::iter(tx_deps.iter().copied())
.map(|tx| async move {
match domain.query().block_meta_by_tx_hash(tx.to_vec()).await {
Ok(Some(block_data)) => Some(Ok((tx, block_data))),
Ok(None) => None,
Err(_) => Some(Err(StatusCode::INTERNAL_SERVER_ERROR)),
}
}
}))
.await
.into_iter()
.flatten()
.collect::<Result<_, _>>()?;
})
.buffer_unordered(BLOCK_LOOKUP_CONCURRENCY)
.collect::<Vec<_>>()
.await
.into_iter()
.flatten()
.collect::<Result<_, _>>()?;

let mut models: Vec<_> = utxos
.into_iter()
Expand Down
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