fuel-core 0.48.0

Fuel client library is aggregation of all fuels service. It contains the all business logic of the fuel protocol.
Documentation 
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use crate::fuel_core_graphql_api::database::ReadView;
use fuel_core_storage::{
    Error as StorageError,
    Result as StorageResult,
    StorageAsRef,
    iter::IterDirection,
    not_found,
    tables::Coins,
};
use fuel_core_types::{
    entities::coins::coin::Coin,
    fuel_tx::UtxoId,
    fuel_types::Address,
};
use futures::{
    Stream,
    StreamExt,
    TryStreamExt,
};

impl ReadView {
    pub fn coin(&self, utxo_id: UtxoId) -> StorageResult<Coin> {
        let coin = self
            .on_chain
            .as_ref()
            .storage::<Coins>()
            .get(&utxo_id)?
            .ok_or(not_found!(Coins))?
            .into_owned();

        Ok(coin.uncompress(utxo_id))
    }

    pub async fn coins(
        &self,
        utxo_ids: Vec<UtxoId>,
    ) -> impl Iterator<Item = StorageResult<Coin>> + '_ {
        // TODO: Use multiget when it's implemented.
        //  https://github.com/FuelLabs/fuel-core/issues/2344
        let coins = utxo_ids.into_iter().map(|id| self.coin(id));
        // Give a chance to other tasks to run.
        tokio::task::yield_now().await;
        coins
    }

    pub fn owned_coins(
        &self,
        owner: &Address,
        start_coin: Option<UtxoId>,
        direction: IterDirection,
    ) -> impl Stream<Item = StorageResult<Coin>> + '_ + use<'_> {
        self.owned_coins_ids(owner, start_coin, direction)
            .chunks(self.batch_size)
            .map(|chunk| {
                use itertools::Itertools;

                let chunk = chunk.into_iter().try_collect::<_, Vec<_>, _>()?;
                Ok::<_, StorageError>(chunk)
            })
            .try_filter_map(move |chunk| async move {
                let chunk = self.coins(chunk).await;
                Ok(Some(futures::stream::iter(chunk)))
            })
            .try_flatten()
    }
}