mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-04-30 09:37:55 +00:00
Browser extension signing example (#1067)
* routing and signing example * cliipy fix * submitting extrinsics * change order of lines * Skip call variants if there aren't any (#980) Co-authored-by: Niklas Adolfsson <niklasadolfsson1@gmail.com> * Tidy up some metadata accessing (#978) * Reduce some repetition when obtaining metadata pallets/runtime_traits * make them pub * fix docs and clippy * Bump tokio from 1.28.1 to 1.28.2 (#984) Bumps [tokio](https://github.com/tokio-rs/tokio) from 1.28.1 to 1.28.2. - [Release notes](https://github.com/tokio-rs/tokio/releases) - [Commits](https://github.com/tokio-rs/tokio/compare/tokio-1.28.1...tokio-1.28.2) --- updated-dependencies: - dependency-name: tokio dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> * Bump regex from 1.8.2 to 1.8.3 (#986) Bumps [regex](https://github.com/rust-lang/regex) from 1.8.2 to 1.8.3. - [Release notes](https://github.com/rust-lang/regex/releases) - [Changelog](https://github.com/rust-lang/regex/blob/master/CHANGELOG.md) - [Commits](https://github.com/rust-lang/regex/compare/1.8.2...1.8.3) --- updated-dependencies: - dependency-name: regex dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> * Bump quote from 1.0.27 to 1.0.28 (#983) Bumps [quote](https://github.com/dtolnay/quote) from 1.0.27 to 1.0.28. - [Release notes](https://github.com/dtolnay/quote/releases) - [Commits](https://github.com/dtolnay/quote/compare/1.0.27...1.0.28) --- updated-dependencies: - dependency-name: quote dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> * Bump proc-macro2 from 1.0.58 to 1.0.59 (#985) Bumps [proc-macro2](https://github.com/dtolnay/proc-macro2) from 1.0.58 to 1.0.59. - [Release notes](https://github.com/dtolnay/proc-macro2/releases) - [Commits](https://github.com/dtolnay/proc-macro2/compare/1.0.58...1.0.59) --- updated-dependencies: - dependency-name: proc-macro2 dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> * restrict sign_with_address_and_signature interface (#988) * changing js bridge * dryrunresult ok * submitting extrinsic working * tiny up code and ui * formatting * remove todos * support tip and mortality * Prevent bug when reusing type ids in hashing (#1075) * practice TDD * implement a hashmap 2-phases approach * use nicer types * add test for cache filling * adjust test --------- Co-authored-by: James Wilson <james@jsdw.me> * small adjustment * Merge branch 'master' into tadeo-hepperle-browser-extension-signing-example * fix lock file * tell users how to add Alice account to run signing example * adjust to PR comments * fmt --------- Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: James Wilson <james@jsdw.me> Co-authored-by: Niklas Adolfsson <niklasadolfsson1@gmail.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
This commit is contained in:
Tadeo Hepperle
@@ -0,0 +1,140 @@
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use futures::FutureExt;
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use yew::prelude::*;
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use crate::services;
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pub struct FetchingExamplesComponent {
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operation_title: Option<AttrValue>,
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lines: Vec<AttrValue>,
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}
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pub enum Message {
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Error(subxt::Error),
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Reload,
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Line(AttrValue),
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Lines(Vec<AttrValue>),
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ButtonClick(Button),
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}
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pub enum Button {
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SubscribeFinalized,
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FetchConstant,
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FetchEvents,
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}
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impl Component for FetchingExamplesComponent {
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type Message = Message;
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type Properties = ();
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fn create(_ctx: &Context<Self>) -> Self {
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FetchingExamplesComponent {
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lines: Vec::new(),
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operation_title: None,
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}
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}
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fn update(&mut self, ctx: &Context<Self>, msg: Self::Message) -> bool {
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match msg {
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Message::Error(err) => {
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self.lines.insert(0, err.to_string().into());
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}
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Message::Reload => {
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let window = web_sys::window().expect("Failed to access the window object");
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window
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.location()
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.reload()
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.expect("Failed to reload the page");
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}
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Message::Line(line) => {
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// newer lines go to the top
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self.lines.insert(0, line);
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}
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Message::Lines(lines) => {
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for line in lines {
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self.lines.insert(0, line);
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}
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}
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Message::ButtonClick(button) => match button {
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Button::SubscribeFinalized => {
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self.operation_title = Some("Subscribe to finalized blocks:".into());
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let cb: Callback<AttrValue> = ctx.link().callback(Message::Line);
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ctx.link()
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.send_future(services::subscribe_to_finalized_blocks(cb).map(|result| {
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let err = result.unwrap_err();
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Message::Error(err)
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}));
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}
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Button::FetchConstant => {
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self.operation_title =
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Some("Fetch the constant \"block_length\" of \"System\" pallet:".into());
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ctx.link()
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.send_future(services::fetch_constant_block_length().map(|result| {
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match result {
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Ok(value) => Message::Line(
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format!(
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"constant \"block_length\" of \"System\" pallet:\n {value}"
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)
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.into(),
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),
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Err(err) => Message::Error(err),
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}
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}))
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}
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Button::FetchEvents => {
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self.operation_title = Some("Fetch events:".into());
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ctx.link()
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.send_future(services::fetch_events_dynamically().map(
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|result| match result {
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Ok(value) => {
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Message::Lines(value.into_iter().map(AttrValue::from).collect())
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}
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Err(err) => Message::Error(err),
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},
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))
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}
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},
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}
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true
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}
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fn view(&self, ctx: &Context<Self>) -> Html {
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let reload: Callback<MouseEvent> = ctx.link().callback(|_| Message::Reload);
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let subscribe_finalized = ctx
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.link()
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.callback(|_| Message::ButtonClick(Button::SubscribeFinalized));
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let fetch_constant = ctx
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.link()
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.callback(|_| Message::ButtonClick(Button::FetchConstant));
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let fetch_events = ctx
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.link()
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.callback(|_| Message::ButtonClick(Button::FetchEvents));
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html! {
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<div>
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if let Some(operation_title) = &self.operation_title{
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<button onclick={reload}>{"<= Back"}</button>
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<h1>{operation_title}</h1>
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if self.lines.is_empty(){
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<p>{"Loading..."}</p>
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}
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else{
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}
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{ for self.lines.iter().map(|line| html! {<p> {line} </p>}) }
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}
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else{
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<>
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<a href="/"> <button>{"<= Back"}</button></a>
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<h1>{"Subxt Fetching and Subscribing Examples"}</h1>
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<button onclick={subscribe_finalized}>{"Example: Subscribe to Finalized blocks"}</button>
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<button onclick={fetch_constant}>{"Example: Fetch constant value"}</button>
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<button onclick={fetch_events}>{"Example: Fetch events"}</button>
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</>
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}
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</div>
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}
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}
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}
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@@ -0,0 +1,2 @@
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pub mod fetching;
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pub mod signing;
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@@ -0,0 +1,391 @@
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use anyhow::anyhow;
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use futures::FutureExt;
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use subxt::{OnlineClient, PolkadotConfig};
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use subxt::ext::codec::{Decode, Encode};
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use subxt::tx::SubmittableExtrinsic;
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use subxt::tx::TxPayload;
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use subxt::utils::{AccountId32, MultiSignature};
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use crate::services::{extension_signature_for_partial_extrinsic, get_accounts, polkadot, Account};
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use web_sys::HtmlInputElement;
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use yew::prelude::*;
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pub struct SigningExamplesComponent {
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message: String,
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remark_call_bytes: Vec<u8>,
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online_client: Option<OnlineClient<PolkadotConfig>>,
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stage: SigningStage,
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}
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impl SigningExamplesComponent {
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/// # Panics
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/// panics if self.online_client is None.
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fn set_message(&mut self, message: String) {
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let remark_call = polkadot::tx().system().remark(message.as_bytes().to_vec());
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let online_client = self.online_client.as_ref().unwrap();
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let remark_call_bytes = remark_call
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.encode_call_data(&online_client.metadata())
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.unwrap();
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self.remark_call_bytes = remark_call_bytes;
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self.message = message;
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}
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}
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pub enum SigningStage {
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Error(String),
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CreatingOnlineClient,
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EnterMessage,
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RequestingAccounts,
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SelectAccount(Vec<Account>),
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Signing(Account),
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SigningSuccess {
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signer_account: Account,
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signature: MultiSignature,
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signed_extrinsic_hex: String,
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submitting_stage: SubmittingStage,
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},
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}
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pub enum SubmittingStage {
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Initial {
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signed_extrinsic: SubmittableExtrinsic<PolkadotConfig, OnlineClient<PolkadotConfig>>,
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},
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Submitting,
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Success {
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remark_event: polkadot::system::events::ExtrinsicSuccess,
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},
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Error(anyhow::Error),
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}
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pub enum Message {
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Error(anyhow::Error),
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OnlineClientCreated(OnlineClient<PolkadotConfig>),
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ChangeMessage(String),
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RequestAccounts,
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ReceivedAccounts(Vec<Account>),
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/// usize represents account index in Vec<Account>
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SignWithAccount(usize),
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ReceivedSignature(
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MultiSignature,
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SubmittableExtrinsic<PolkadotConfig, OnlineClient<PolkadotConfig>>,
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),
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SubmitSigned,
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ExtrinsicFinalized {
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remark_event: polkadot::system::events::ExtrinsicSuccess,
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},
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ExtrinsicFailed(anyhow::Error),
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}
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impl Component for SigningExamplesComponent {
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type Message = Message;
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type Properties = ();
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fn create(ctx: &Context<Self>) -> Self {
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ctx.link().send_future(OnlineClient::<PolkadotConfig>::new().map(|res| {
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match res {
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Ok(online_client) => Message::OnlineClientCreated(online_client),
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Err(err) => Message::Error(anyhow!("Online Client could not be created. Make sure you have a local node running:\n{err}")),
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}
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}));
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SigningExamplesComponent {
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message: "".to_string(),
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stage: SigningStage::CreatingOnlineClient,
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online_client: None,
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remark_call_bytes: vec![],
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}
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}
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fn update(&mut self, ctx: &Context<Self>, msg: Self::Message) -> bool {
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match msg {
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Message::OnlineClientCreated(online_client) => {
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self.online_client = Some(online_client);
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self.stage = SigningStage::EnterMessage;
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self.set_message("Hello".into());
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}
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Message::ChangeMessage(message) => {
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self.set_message(message);
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}
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Message::RequestAccounts => {
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self.stage = SigningStage::RequestingAccounts;
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ctx.link().send_future(get_accounts().map(
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|accounts_or_err| match accounts_or_err {
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Ok(accounts) => Message::ReceivedAccounts(accounts),
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Err(err) => Message::Error(err),
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},
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));
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}
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Message::ReceivedAccounts(accounts) => {
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self.stage = SigningStage::SelectAccount(accounts);
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}
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Message::Error(err) => self.stage = SigningStage::Error(err.to_string()),
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Message::SignWithAccount(i) => {
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if let SigningStage::SelectAccount(accounts) = &self.stage {
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let account = accounts.get(i).unwrap();
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let account_address = account.address.clone();
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let account_source = account.source.clone();
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let account_id: AccountId32 = account_address.parse().unwrap();
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self.stage = SigningStage::Signing(account.clone());
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let remark_call = polkadot::tx()
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.system()
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.remark(self.message.as_bytes().to_vec());
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let api = self.online_client.as_ref().unwrap().clone();
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ctx.link()
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.send_future(
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async move {
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let partial_extrinsic =
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match api.tx().create_partial_signed(&remark_call, &account_id, Default::default()).await {
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Ok(partial_extrinsic) => partial_extrinsic,
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Err(err) => {
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return Message::Error(anyhow!("could not create partial extrinsic:\n{:?}", err));
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}
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};
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let Ok(signature) = extension_signature_for_partial_extrinsic(&partial_extrinsic, &api, &account_id, account_source, account_address).await else {
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return Message::Error(anyhow!("Signing via extension failed"));
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};
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let Ok(multi_signature) = MultiSignature::decode(&mut &signature[..]) else {
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return Message::Error(anyhow!("MultiSignature Decoding"));
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};
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let signed_extrinsic = partial_extrinsic.sign_with_address_and_signature(&account_id.into(), &multi_signature);
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// do a dry run (to debug in the js console if the extrinsic would work)
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let dry_res = signed_extrinsic.dry_run(None).await;
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web_sys::console::log_1(&format!("Dry Run Result: {:?}", dry_res).into());
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// return the signature and signed extrinsic
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Message::ReceivedSignature(multi_signature, signed_extrinsic)
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}
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);
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}
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}
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Message::ReceivedSignature(signature, signed_extrinsic) => {
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if let SigningStage::Signing(account) = &self.stage {
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let signed_extrinsic_hex =
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format!("0x{}", hex::encode(signed_extrinsic.encoded()));
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self.stage = SigningStage::SigningSuccess {
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signer_account: account.clone(),
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signature,
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signed_extrinsic_hex,
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submitting_stage: SubmittingStage::Initial { signed_extrinsic },
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}
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}
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}
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Message::SubmitSigned => {
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if let SigningStage::SigningSuccess {
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submitting_stage: submitting_stage @ SubmittingStage::Initial { .. },
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..
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} = &mut self.stage
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{
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let SubmittingStage::Initial { signed_extrinsic } = std::mem::replace(submitting_stage, SubmittingStage::Submitting) else {
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panic!("unreachable")
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};
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|
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ctx.link().send_future(async move {
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match submit_wait_finalized_and_get_extrinsic_success_event(
|
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signed_extrinsic,
|
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)
|
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.await
|
||||
{
|
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Ok(remark_event) => Message::ExtrinsicFinalized { remark_event },
|
||||
Err(err) => Message::ExtrinsicFailed(err),
|
||||
}
|
||||
});
|
||||
}
|
||||
}
|
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Message::ExtrinsicFinalized { remark_event } => {
|
||||
if let SigningStage::SigningSuccess {
|
||||
submitting_stage, ..
|
||||
} = &mut self.stage
|
||||
{
|
||||
*submitting_stage = SubmittingStage::Success { remark_event }
|
||||
}
|
||||
}
|
||||
Message::ExtrinsicFailed(err) => {
|
||||
if let SigningStage::SigningSuccess {
|
||||
submitting_stage, ..
|
||||
} = &mut self.stage
|
||||
{
|
||||
*submitting_stage = SubmittingStage::Error(err)
|
||||
}
|
||||
}
|
||||
};
|
||||
true
|
||||
}
|
||||
|
||||
fn view(&self, ctx: &Context<Self>) -> Html {
|
||||
let message_as_hex_html = || {
|
||||
html!(
|
||||
<div class="mb">
|
||||
<b>{"Hex representation of \"remark\" call in \"System\" pallet:"}</b> <br/>
|
||||
{format!("0x{}", hex::encode(&self.remark_call_bytes))}
|
||||
</div>
|
||||
)
|
||||
};
|
||||
|
||||
let message_html: Html = match &self.stage {
|
||||
SigningStage::Error(_)
|
||||
| SigningStage::EnterMessage
|
||||
| SigningStage::CreatingOnlineClient => html!(<></>),
|
||||
_ => {
|
||||
let _remark_call = polkadot::tx()
|
||||
.system()
|
||||
.remark(self.message.as_bytes().to_vec());
|
||||
html!(
|
||||
<div>
|
||||
<div class="mb">
|
||||
<b>{"Message: "}</b> <br/>
|
||||
{&self.message}
|
||||
</div>
|
||||
{message_as_hex_html()}
|
||||
</div>
|
||||
)
|
||||
}
|
||||
};
|
||||
|
||||
let signer_account_html: Html = match &self.stage {
|
||||
SigningStage::Signing(signer_account)
|
||||
| SigningStage::SigningSuccess { signer_account, .. } => {
|
||||
html!(
|
||||
<div class="mb">
|
||||
<b>{"Account used for signing: "}</b> <br/>
|
||||
{"Extension: "}{&signer_account.source} <br/>
|
||||
{"Name: "}{&signer_account.name} <br/>
|
||||
{"Address: "}{&signer_account.address} <br/>
|
||||
</div>
|
||||
)
|
||||
}
|
||||
_ => html!(<></>),
|
||||
};
|
||||
|
||||
let stage_html: Html = match &self.stage {
|
||||
SigningStage::Error(error_message) => {
|
||||
html!(<div class="error"> {"Error: "} {error_message} </div>)
|
||||
}
|
||||
SigningStage::CreatingOnlineClient => {
|
||||
html!(
|
||||
<div>
|
||||
<b>{"Creating Online Client..."}</b>
|
||||
</div>
|
||||
)
|
||||
}
|
||||
SigningStage::EnterMessage => {
|
||||
let get_accounts_click = ctx.link().callback(|_| Message::RequestAccounts);
|
||||
let on_input = ctx.link().callback(move |event: InputEvent| {
|
||||
let input_element = event.target_dyn_into::<HtmlInputElement>().unwrap();
|
||||
let value = input_element.value();
|
||||
Message::ChangeMessage(value)
|
||||
});
|
||||
|
||||
html!(
|
||||
<>
|
||||
<div class="mb"><b>{"Enter a message for the \"remark\" call in the \"System\" pallet:"}</b></div>
|
||||
<input oninput={on_input} class="mb" value={AttrValue::from(self.message.clone())}/>
|
||||
{message_as_hex_html()}
|
||||
<button onclick={get_accounts_click}> {"=> Select an Account for Signing"} </button>
|
||||
</>
|
||||
)
|
||||
}
|
||||
SigningStage::RequestingAccounts => {
|
||||
html!(<div>{"Querying extensions for accounts..."}</div>)
|
||||
}
|
||||
SigningStage::SelectAccount(accounts) => {
|
||||
if accounts.is_empty() {
|
||||
html!(<div>{"No Web3 extension accounts found. Install Talisman or the Polkadot.js extension and add an account."}</div>)
|
||||
} else {
|
||||
html!(
|
||||
<>
|
||||
<div class="mb"><b>{"Select an account you want to use for signing:"}</b></div>
|
||||
{ for accounts.iter().enumerate().map(|(i, account)| {
|
||||
let sign_with_account = ctx.link().callback(move |_| Message::SignWithAccount(i));
|
||||
html! {
|
||||
<button onclick={sign_with_account}>
|
||||
{&account.source} {" | "} {&account.name}<br/>
|
||||
<small>{&account.address}</small>
|
||||
</button>
|
||||
}
|
||||
}) }
|
||||
</>
|
||||
)
|
||||
}
|
||||
}
|
||||
SigningStage::Signing(_) => {
|
||||
html!(<div>{"Singing message with browser extension..."}</div>)
|
||||
}
|
||||
SigningStage::SigningSuccess {
|
||||
signature,
|
||||
signed_extrinsic_hex,
|
||||
submitting_stage,
|
||||
..
|
||||
} => {
|
||||
let submitting_stage_html = match submitting_stage {
|
||||
SubmittingStage::Initial { .. } => {
|
||||
let submit_extrinsic_click =
|
||||
ctx.link().callback(move |_| Message::SubmitSigned);
|
||||
html!(<button onclick={submit_extrinsic_click}> {"=> Submit the signed extrinsic"} </button>)
|
||||
}
|
||||
SubmittingStage::Submitting => {
|
||||
html!(<div class="loading"><b>{"Submitting Extrinsic... (please wait a few seconds)"}</b></div>)
|
||||
}
|
||||
SubmittingStage::Success { remark_event } => {
|
||||
html!(<div style="overflow-wrap: break-word;"> <b>{"Successfully submitted Extrinsic. Event:"}</b> <br/> {format!("{:?}", remark_event)} </div>)
|
||||
}
|
||||
SubmittingStage::Error(err) => {
|
||||
html!(<div class="error"> {"Error: "} {err.to_string()} </div>)
|
||||
}
|
||||
};
|
||||
|
||||
html!(
|
||||
<>
|
||||
<div style="overflow-wrap: break-word;" class="mb">
|
||||
<b>{"Received signature: "}</b><br/>
|
||||
{hex::encode(signature.encode())}
|
||||
</div>
|
||||
<div style="overflow-wrap: break-word;" class="mb">
|
||||
<b>{"Hex representation of signed extrinsic: "}</b> <br/>
|
||||
{signed_extrinsic_hex}
|
||||
</div>
|
||||
{submitting_stage_html}
|
||||
</>
|
||||
)
|
||||
}
|
||||
};
|
||||
|
||||
html! {
|
||||
<div>
|
||||
<a href="/"> <button>{"<= Back"}</button></a>
|
||||
<h1>{"Subxt Signing Example"}</h1>
|
||||
{message_html}
|
||||
{signer_account_html}
|
||||
{stage_html}
|
||||
</div>
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
async fn submit_wait_finalized_and_get_extrinsic_success_event(
|
||||
extrinsic: SubmittableExtrinsic<PolkadotConfig, OnlineClient<PolkadotConfig>>,
|
||||
) -> Result<polkadot::system::events::ExtrinsicSuccess, anyhow::Error> {
|
||||
let events = extrinsic
|
||||
.submit_and_watch()
|
||||
.await?
|
||||
.wait_for_finalized_success()
|
||||
.await?;
|
||||
|
||||
let events_str = format!("{:?}", &events);
|
||||
web_sys::console::log_1(&events_str.into());
|
||||
for event in events.find::<polkadot::system::events::ExtrinsicSuccess>() {
|
||||
web_sys::console::log_1(&format!("{:?}", event).into());
|
||||
}
|
||||
|
||||
let success = events.find_first::<polkadot::system::events::ExtrinsicSuccess>()?;
|
||||
success.ok_or(anyhow!("ExtrinsicSuccess not found in events"))
|
||||
}
|
||||
Reference in New Issue
Block a user