[feature] #3900: fetch_size query parameter

Signed-off-by: Daniil Polyakov <arjentix@gmail.com>

cli/Cargo.toml

@@ -59,6 +59,7 @@ iroha_genesis = { workspace = true }
 iroha_wasm_builder = { workspace = true }
 
 
+derive_more = { workspace = true }
 async-trait = { workspace = true }
 color-eyre = { workspace = true }
 eyre = { workspace = true }

cli/src/torii/mod.rs

@@ -105,7 +105,9 @@ impl Error {
             QueryFailed(query_error)
             | InstructionFailed(InstructionExecutionError::Query(query_error)) => match query_error
             {
-                Evaluate(_) | Conversion(_) | UnknownCursor => StatusCode::BAD_REQUEST,
+                Evaluate(_) | Conversion(_) | UnknownCursor | FetchSizeTooBig => {
+                    StatusCode::BAD_REQUEST
+                }
                 Signature(_) => StatusCode::UNAUTHORIZED,
                 Find(_) => StatusCode::NOT_FOUND,
             },

cli/src/torii/routing.rs

@@ -5,8 +5,6 @@
 // FIXME: This can't be fixed, because one trait in `warp` is private.
 #![allow(opaque_hidden_inferred_bound)]
 
-use std::num::NonZeroUsize;
-
 use eyre::{eyre, WrapErr};
 use futures::TryStreamExt;
 use iroha_config::{
@@ -45,11 +43,13 @@ fn client_query_request(
     body::versioned::<SignedQuery>()
         .and(sorting())
         .and(paginate())
-        .and_then(|signed_query, sorting, pagination| async move {
+        .and(fetch_size())
+        .and_then(|signed_query, sorting, pagination, fetch_size| async move {
             Result::<_, std::convert::Infallible>::Ok(http::ClientQueryRequest::query(
                 signed_query,
                 sorting,
                 pagination,
+                fetch_size,
             ))
         })
         .or(cursor().and_then(|cursor| async move {
@@ -73,6 +73,11 @@ fn paginate() -> impl warp::Filter<Extract = (Pagination,), Error = warp::Reject
     warp::query()
 }
 
+/// Filter for warp which extracts fetch size
+fn fetch_size() -> impl warp::Filter<Extract = (FetchSize,), Error = warp::Rejection> + Copy {
+    warp::query()
+}
+
 #[iroha_futures::telemetry_future]
 async fn handle_instructions(
     queue: Arc<Queue>,
@@ -101,7 +106,6 @@ async fn handle_instructions(
 async fn handle_queries(
     live_query_store: LiveQueryStoreHandle,
     sumeragi: SumeragiHandle,
-    fetch_size: NonZeroUsize,
 
     query_request: http::ClientQueryRequest,
 ) -> Result<Scale<BatchedResponse<Value>>> {
@@ -110,11 +114,12 @@ async fn handle_queries(
             query: signed_query,
             sorting,
             pagination,
+            fetch_size,
         }) => sumeragi.apply_wsv(|wsv| {
             let valid_query = ValidQueryRequest::validate(signed_query, wsv)?;
             let query_output = valid_query.execute(wsv)?;
             live_query_store
-                .handle_query_output(query_output, fetch_size, &sorting, pagination)
+                .handle_query_output(query_output, &sorting, pagination, fetch_size)
                 .map_err(ValidationFail::from)
         }),
         QueryRequest::Cursor(cursor) => live_query_store
@@ -477,15 +482,10 @@ impl Torii {
                         ))
                         .and(body::versioned()),
                 )
-                .or(endpoint4(
+                .or(endpoint3(
                     handle_queries,
                     warp::path(uri::QUERY)
-                        .and(add_state!(
-                            self.query_service,
-                            self.sumeragi,
-                            NonZeroUsize::try_from(self.iroha_cfg.torii.fetch_size)
-                                .expect("u64 should always fit into usize")
-                        ))
+                        .and(add_state!(self.query_service, self.sumeragi,))
                         .and(client_query_request()),
                 ))
                 .or(endpoint2(

client/src/client.rs

@@ -245,6 +245,15 @@ pub struct ResultSet<T> {
     client_cursor: usize,
 }
 
+impl<T> ResultSet<T> {
+    /// Get the length of the batch returned by Iroha.
+    ///
+    /// This is controlled by `fetch_size` parameter of the query.
+    pub fn batch_len(&self) -> usize {
+        self.iter.len()
+    }
+}
+
 impl<T: Clone> Iterator for ResultSet<T>
 where
     Vec<T>: QueryOutput,
@@ -374,6 +383,7 @@ impl QueryRequest {
                     query: Vec::default(),
                     sorting: Sorting::default(),
                     pagination: Pagination::default(),
+                    fetch_size: FetchSize::default(),
                 },
             ),
         }
@@ -389,6 +399,7 @@ impl QueryRequest {
             iroha_data_model::query::QueryRequest::Query(query_with_params) => builder
                 .params(query_with_params.sorting().clone().into_query_parameters())
                 .params(query_with_params.pagination().into_query_parameters())
+                .params(query_with_params.fetch_size().into_query_parameters())
                 .body(query_with_params.query().clone()),
             iroha_data_model::query::QueryRequest::Cursor(cursor) => {
                 builder.params(Vec::from(cursor))
@@ -798,6 +809,7 @@ impl Client {
         filter: PredicateBox,
         pagination: Pagination,
         sorting: Sorting,
+        fetch_size: FetchSize,
     ) -> Result<(DefaultRequestBuilder, QueryResponseHandler<R::Output>)>
     where
         <R::Output as TryFrom<Value>>::Error: Into<eyre::Error>,
@@ -809,7 +821,9 @@ impl Client {
             torii_url: self.torii_url.clone(),
             headers: self.headers.clone(),
             request: iroha_data_model::query::QueryRequest::Query(
-                iroha_data_model::query::QueryWithParameters::new(request, sorting, pagination),
+                iroha_data_model::query::QueryWithParameters::new(
+                    request, sorting, pagination, fetch_size,
+                ),
             ),
         };
 
@@ -827,6 +841,7 @@ impl Client {
         &self,
         request: R,
         pagination: Pagination,
+        fetch_size: FetchSize,
         sorting: Sorting,
         filter: PredicateBox,
     ) -> QueryResult<<R::Output as QueryOutput>::Target>
@@ -836,7 +851,7 @@ impl Client {
     {
         iroha_logger::trace!(?request, %pagination, ?sorting, ?filter);
         let (req, mut resp_handler) =
-            self.prepare_query_request::<R>(request, filter, pagination, sorting)?;
+            self.prepare_query_request::<R>(request, filter, pagination, sorting, fetch_size)?;
 
         let response = req.build()?.send()?;
         let value = resp_handler.handle(&response)?;

client/src/query_builder.rs

@@ -2,7 +2,7 @@ use std::fmt::Debug;
 
 use iroha_data_model::{
     predicate::PredicateBox,
-    query::{sorting::Sorting, Pagination, Query},
+    query::{sorting::Sorting, FetchSize, Pagination, Query},
     Value,
 };
 
@@ -14,6 +14,7 @@ pub struct QueryRequestBuilder<'a, R> {
     pagination: Pagination,
     filter: PredicateBox,
     sorting: Sorting,
+    fetch_size: FetchSize,
 }
 
 impl<'a, R> QueryRequestBuilder<'a, R>
@@ -29,6 +30,7 @@ where
             pagination: Pagination::default(),
             sorting: Sorting::default(),
             filter: PredicateBox::default(),
+            fetch_size: FetchSize::default(),
         }
     }
 
@@ -47,10 +49,16 @@ where
         self
     }
 
+    pub fn with_fetch_size(mut self, fetch_size: FetchSize) -> Self {
+        self.fetch_size = fetch_size;
+        self
+    }
+
     pub fn execute(self) -> QueryResult<<R::Output as QueryOutput>::Target> {
         self.client.request_with_filter_and_pagination_and_sorting(
             self.request,
             self.pagination,
+            self.fetch_size,
             self.sorting,
             self.filter,
         )

client/tests/integration/pagination.rs

@@ -1,23 +1,16 @@
 use std::num::{NonZeroU32, NonZeroU64};
 
 use eyre::Result;
-use iroha_client::client::{asset, QueryResult};
+use iroha_client::client::{asset, Client, QueryResult};
 use iroha_data_model::{asset::AssetDefinition, prelude::*, query::Pagination};
 use test_network::*;
 
 #[test]
-fn client_add_asset_quantity_to_existing_asset_should_increase_asset_amount() -> Result<()> {
+fn limits_should_work() -> Result<()> {
     let (_rt, _peer, client) = <PeerBuilder>::new().with_port(10_690).start_with_runtime();
     wait_for_genesis_committed(&vec![client.clone()], 0);
 
-    let register: Vec<InstructionExpr> = ('a'..='z') // This is a subtle mistake, I'm glad we can lint it now.
-        .map(|c| c.to_string())
-        .map(|name| (name + "#wonderland").parse().expect("Valid"))
-        .map(|asset_definition_id| {
-            RegisterExpr::new(AssetDefinition::quantity(asset_definition_id)).into()
-        })
-        .collect();
-    client.submit_all_blocking(register)?;
+    register_assets(&client)?;
 
     let vec = &client
         .build_query(asset::all_definitions())
@@ -30,3 +23,34 @@ fn client_add_asset_quantity_to_existing_asset_should_increase_asset_amount() ->
     assert_eq!(vec.len(), 5);
     Ok(())
 }
+
+#[test]
+fn fetch_size_should_work() -> Result<()> {
+    let (_rt, _peer, client) = <PeerBuilder>::new().with_port(11_120).start_with_runtime();
+    wait_for_genesis_committed(&vec![client.clone()], 0);
+
+    register_assets(&client)?;
+
+    let iter = client
+        .build_query(asset::all_definitions())
+        .with_pagination(Pagination {
+            limit: NonZeroU32::new(20),
+            start: NonZeroU64::new(0),
+        })
+        .with_fetch_size(FetchSize::new(Some(NonZeroU32::new(12).expect("Valid"))))
+        .execute()?;
+    assert_eq!(iter.batch_len(), 12);
+    Ok(())
+}
+
+fn register_assets(client: &Client) -> Result<()> {
+    let register: Vec<InstructionExpr> = ('a'..='z')
+        .map(|c| c.to_string())
+        .map(|name| (name + "#wonderland").parse().expect("Valid"))
+        .map(|asset_definition_id| {
+            RegisterExpr::new(AssetDefinition::quantity(asset_definition_id)).into()
+        })
+        .collect();
+    let _ = client.submit_all_blocking(register)?;
+    Ok(())
+}

client/tests/integration/permissions.rs

@@ -32,7 +32,7 @@ fn genesis_transactions_are_validated() {
     // Starting peer
     let (_rt, _peer, test_client) = <PeerBuilder>::new()
         .with_genesis(genesis)
-        .with_port(11_100)
+        .with_port(11_110)
         .start_with_runtime();
 
     // Checking that peer contains no blocks multiple times

client/tests/integration/queries/mod.rs

@@ -1,3 +1,29 @@
+use iroha_client::client::{self, ClientQueryError};
+use iroha_data_model::{
+    query::{error::QueryExecutionFail, FetchSize, MAX_FETCH_SIZE},
+    ValidationFail,
+};
+use test_network::*;
+
 mod account;
 mod asset;
 mod role;
+
+#[test]
+fn too_big_fetch_size_is_not_allowed() {
+    let (_rt, _peer, client) = <PeerBuilder>::new().with_port(11_130).start_with_runtime();
+    wait_for_genesis_committed(&[client.clone()], 0);
+
+    let err = client
+        .build_query(client::asset::all())
+        .with_fetch_size(FetchSize::new(Some(MAX_FETCH_SIZE.checked_add(1).unwrap())))
+        .execute()
+        .expect_err("Should fail");
+
+    assert!(matches!(
+        err,
+        ClientQueryError::Validation(ValidationFail::QueryFailed(
+            QueryExecutionFail::FetchSizeTooBig
+        ))
+    ));
+}

client/tests/integration/sorting.rs

@@ -256,14 +256,12 @@ fn correct_sorting_of_entities() {
         .expect("Valid");
 
     let res = test_client
-        .request_with_filter_and_pagination_and_sorting(
-            client::domain::all(),
-            Pagination::default(),
-            Sorting::by_metadata_key(sort_by_metadata_key.clone()),
-            PredicateBox::new(value::ValuePredicate::Identifiable(
-                string::StringPredicate::starts_with("neverland"),
-            )),
-        )
+        .build_query(client::domain::all())
+        .with_sorting(Sorting::by_metadata_key(sort_by_metadata_key.clone()))
+        .with_filter(PredicateBox::new(value::ValuePredicate::Identifiable(
+            string::StringPredicate::starts_with("neverland"),
+        )))
+        .execute()
         .expect("Valid")
         .collect::<QueryResult<Vec<_>>>()
         .expect("Valid");
@@ -305,12 +303,10 @@ fn correct_sorting_of_entities() {
         string::StringPredicate::starts_with("neverland_"),
     ));
     let res = test_client
-        .request_with_filter_and_pagination_and_sorting(
-            client::domain::all(),
-            Pagination::default(),
-            Sorting::by_metadata_key(sort_by_metadata_key),
-            filter,
-        )
+        .build_query(client::domain::all())
+        .with_sorting(Sorting::by_metadata_key(sort_by_metadata_key))
+        .with_filter(filter)
+        .execute()
         .expect("Valid")
         .collect::<QueryResult<Vec<_>>>()
         .expect("Valid");

config/iroha_test_config.json

@@ -43,8 +43,7 @@
     "P2P_ADDR": "127.0.0.1:1337",
     "API_URL": "127.0.0.1:8080",
     "MAX_TRANSACTION_SIZE": 32768,
-    "MAX_CONTENT_LEN": 16384000,
-    "FETCH_SIZE": 10
+    "MAX_CONTENT_LEN": 16384000
   },
   "BLOCK_SYNC": {
     "GOSSIP_PERIOD_MS": 10000,