Do not require extrinsic params

examples/examples/batch_payout.rs

@@ -18,7 +18,7 @@ use serde_json::Value;
 use sp_keyring::AccountKeyring;
 use sp_runtime::{app_crypto::Ss58Codec, AccountId32};
 use substrate_api_client::{
-	rpc::JsonrpseeClient, Api, GetStorage, PlainTipExtrinsicParams, SubmitAndWatch, XtStatus,
+	rpc::JsonrpseeClient, Api, AssetTipExtrinsicParams, GetStorage, SubmitAndWatch, XtStatus,
 };
 
 const MAX_BATCHED_TRANSACTION: u32 = 9;
@@ -46,7 +46,7 @@ async fn main() {
 	// Initialize api and set the signer (sender) that is used to sign the extrinsics.
 	let alice = AccountKeyring::Alice.pair();
 	let client = JsonrpseeClient::with_default_url().unwrap();
-	let mut api = Api::<_, _, PlainTipExtrinsicParams<Runtime>, Runtime>::new(client).unwrap();
+	let mut api = Api::<_, _, AssetTipExtrinsicParams<Runtime>, Runtime>::new(client).unwrap();
 	api.set_signer(alice);
 
 	// Give a valid validator account address, given one is westend chain validator account.
@@ -120,7 +120,7 @@ pub fn get_last_reward(
 	api: &substrate_api_client::Api<
 		sp_core::sr25519::Pair,
 		JsonrpseeClient,
-		PlainTipExtrinsicParams<Runtime>,
+		AssetTipExtrinsicParams<Runtime>,
 		Runtime,
 	>,
 ) -> u32 {

examples/examples/contract_instantiate_with_code.rs

@@ -19,7 +19,7 @@ use codec::{Decode, Encode};
 use kitchensink_runtime::Runtime;
 use sp_keyring::AccountKeyring;
 use substrate_api_client::{
-	rpc::JsonrpseeClient, AccountId, Api, PlainTipExtrinsicParams, StaticEvent, SubmitAndWatch,
+	rpc::JsonrpseeClient, AccountId, Api, AssetTipExtrinsicParams, StaticEvent, SubmitAndWatch,
 	SubscribeEvents, SubscribeFrameSystem, XtStatus,
 };
 
@@ -44,7 +44,7 @@ async fn main() {
 	let client = JsonrpseeClient::with_default_url().unwrap();
 	// ! Careful: AssetTipExtrinsicParams is used here, because the substrate kitchensink runtime uses assets as tips. But for most
 	// runtimes, the PlainTipExtrinsicParams needs to be used.
-	let mut api = Api::<_, _, PlainTipExtrinsicParams<Runtime>, Runtime>::new(client).unwrap();
+	let mut api = Api::<_, _, AssetTipExtrinsicParams<Runtime>, Runtime>::new(client).unwrap();
 	api.set_signer(signer);
 
 	println!("[+] Alice's Account Nonce is {}", api.get_nonce().unwrap());

examples/examples/event_callback.rs

@@ -35,8 +35,7 @@ async fn main() {
 
 	// Initialize the api.
 	let client = JsonrpseeClient::with_default_url().unwrap();
-	let api =
-		Api::<sr25519::Pair, _, PlainTipExtrinsicParams<Runtime>, Runtime>::new(client).unwrap();
+	let api = Api::<(), _, (), Runtime>::new(client).unwrap();
 
 	println!("Subscribe to events");
 	let mut subscription = api.subscribe_system_events().unwrap();

examples/examples/get_blocks.rs

@@ -29,8 +29,7 @@ async fn main() {
 
 	// Initialize the api.
 	let client = JsonrpseeClient::with_default_url().unwrap();
-	let api =
-		Api::<sr25519::Pair, _, PlainTipExtrinsicParams<Runtime>, Runtime>::new(client).unwrap();
+	let api = Api::<(), _, (), Runtime>::new(client).unwrap();
 
 	println!("Genesis block: \n {:?} \n", api.get_block_by_num(Some(0)).unwrap());
 

examples/examples/get_storage.rs

@@ -31,7 +31,7 @@ async fn main() {
 
 	// Initialize the api.
 	let client = JsonrpseeClient::with_default_url().unwrap();
-	let mut api = Api::<_, _, PlainTipExtrinsicParams<Runtime>, Runtime>::new(client).unwrap();
+	let mut api = Api::<_, _, (), Runtime>::new(client).unwrap();
 
 	// get some plain storage value
 	let result: u128 = api.get_storage_value("Balances", "TotalIssuance", None).unwrap().unwrap();

examples/examples/print_metadata.rs

@@ -26,8 +26,7 @@ async fn main() {
 
 	// Initialize the api, which retrieves the metadata from the node upon initialization.
 	let client = JsonrpseeClient::with_default_url().unwrap();
-	let mut api =
-		Api::<sr25519::Pair, _, PlainTipExtrinsicParams<Runtime>, Runtime>::new(client).unwrap();
+	let mut api = Api::<(), _, (), Runtime>::new(client).unwrap();
 
 	let meta = api.metadata().clone();
 

primitives/src/extrinsic_params.rs

@@ -17,6 +17,7 @@
 
 use codec::{Decode, Encode};
 use core::{hash::Hash as HashTrait, marker::PhantomData};
+use sp_core::H256;
 use sp_runtime::{
 	generic::Era,
 	traits::{BlakeTwo256, Hash},
@@ -291,3 +292,23 @@ impl From<AssetTip<u128>> for u128 {
 		tip.tip
 	}
 }
+
+/// Emtpy implementation in case no ExtrinsicParams are needed, such as unsigned extrinsics or getter calls.
+impl ExtrinsicParams<u32, H256> for () {
+	type OtherParams = ();
+	type SignedExtra = ();
+	type AdditionalSigned = ();
+
+	fn new(
+		_spec_version: u32,
+		_transaction_version: u32,
+		_nonce: u32,
+		_genesis_hash: H256,
+		_other_params: Self::OtherParams,
+	) -> Self {
+	}
+
+	fn signed_extra(&self) -> Self::SignedExtra {}
+
+	fn additional_signed(&self) -> Self::AdditionalSigned {}
+}