RPC to query transaction fee + weight + info (#3876)

* initial version for testing * New version that compiles * optional at block parameter * Fix some more view grumbles. * Update srml/transaction-payment/src/lib.rs
2026-04-30 09:37:55 +00:00 · 2019-10-28 16:04:45 +01:00
parent 9b1dd268bf
commit 7e87dfdc07
15 changed files with 359 additions and 21 deletions
@@ -0,0 +1,22 @@
+[package]
+name = "srml-transaction-payment-rpc-runtime-api"
+version = "2.0.0"
+authors = ["Parity Technologies <admin@parity.io>"]
+edition = "2018"
+
+[dependencies]
+serde = { version = "1.0.101", optional = true, features = ["derive"] }
+client = { package = "substrate-client", path = "../../../../core/client", default-features = false }
+codec = { package = "parity-scale-codec", version = "1.0.6", default-features = false, features = ["derive"] }
+rstd = { package = "sr-std", path = "../../../../core/sr-std", default-features = false }
+sr-primitives = { path = "../../../../core/sr-primitives", default-features = false }
+
+[features]
+default = ["std"]
+std = [
+	"serde",
+	"client/std",
+	"codec/std",
+	"rstd/std",
+	"sr-primitives/std",
+]
@@ -0,0 +1,47 @@
+// Copyright 2019 Parity Technologies (UK) Ltd.
+// This file is part of Substrate.
+
+// Substrate is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Substrate is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Substrate.  If not, see <http://www.gnu.org/licenses/>.
+
+//! Runtime API definition for transaction payment module.
+
+#![cfg_attr(not(feature = "std"), no_std)]
+
+use rstd::prelude::*;
+use sr_primitives::weights::{Weight, DispatchClass};
+use codec::{Encode, Codec, Decode};
+#[cfg(feature = "std")]
+use serde::{Serialize, Deserialize};
+
+/// Some information related to a dispatchable that can be queried from the runtime.
+#[derive(Eq, PartialEq, Encode, Decode, Default)]
+#[cfg_attr(feature = "std", derive(Debug, Serialize, Deserialize))]
+pub struct RuntimeDispatchInfo<Balance> {
+	/// Weight of this dispatch.
+	pub weight: Weight,
+	/// Class of this dispatch.
+	pub class: DispatchClass,
+	/// The partial inclusion fee of this dispatch. This does not include tip or anything else which
+	/// is dependent on the signature (aka. depends on a `SignedExtension`).
+	pub partial_fee: Balance,
+}
+
+client::decl_runtime_apis! {
+	pub trait TransactionPaymentApi<Balance, Extrinsic> where
+		Balance: Codec,
+		Extrinsic: Codec,
+	{
+		fn query_info(uxt: Extrinsic, len: u32) -> RuntimeDispatchInfo<Balance>;
+	}
+}