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Add enable_cancellation flag to submit_bid() of blinded_block_relay #115

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Add enable_cancellation flag to submit_bid() of blinded_block_relay #115

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cfe6a54
feat(blinded_relay): add cancellation parameter
PatStiles Aug 17, 2023
6e162bf
fix naming
PatStiles Aug 18, 2023
3552e46
Apply suggestions from code review
ralexstokes Aug 20, 2023
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2 changes: 1 addition & 1 deletion mev-rs/src/blinded_block_relayer/api/client.rs
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Expand Up @@ -27,7 +27,7 @@ impl BlindedBlockRelayer for Client {
async fn submit_bid(
&self,
signed_submission: &SignedBidSubmission,
cancellation_enabled: bool,
with_cancellation: bool,
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) -> Result<SignedBidReceipt, Error> {
let response = self.api.http_post("/relay/v1/builder/blocks", signed_submission).await?;
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want to round this out on the client?

I really like that you added this to the server part

we can optionally add a query param according to the spec: https://flashbots.github.io/relay-specs/#/Builder/submitBlock

here's an example to add the param: https://github.com/ralexstokes/beacon-api-client/blob/d838d930f80fdfcadfe32147bcb2e805aec074bc/src/api_client.rs#L233

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Yeah! Sounds like a great time.

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@PatStiles PatStiles Aug 18, 2023 •
edited
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@ralexstokes BeaconApiClient doesn't publicly expose the underlying reqwest::Client. We'd need to upstream or create a new reqwest::Client to add an additional query parameter. Want to make sure I have the right idea before I continue.

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yeah good point...

do you want to make a PR to beacon-api-client to just make endpoint and client pub?

then you can update the dep here and just do it directly here, rather than use the exported functions on Client

I took a look but think this probably best rather than trying to make another POST method that also takes query params

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Sounds good opened a pr ralexstokes/beacon-api-client#77

let receipt: ApiResult<SignedBidReceipt> = response.json().await.map_err(ApiError::from)?;
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4 changes: 2 additions & 2 deletions mev-rs/src/blinded_block_relayer/api/server.rs
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Expand Up @@ -24,11 +24,11 @@ async fn handle_get_proposal_schedule<R: BlindedBlockRelayer>(

async fn handle_submit_bid<R: BlindedBlockRelayer>(
State(relayer): State<R>,
Query(enable_cancellation): Query<bool>,
Query(with_cancellation): Query<bool>,
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Json(signed_bid_submission): Json<SignedBidSubmission>,
) -> Result<Json<SignedBidReceipt>, Error> {
tracing::info!("handling bid submission");
Ok(Json(relayer.submit_bid(&signed_bid_submission, enable_cancellation).await?))
Ok(Json(relayer.submit_bid(&signed_bid_submission, with_cancellation).await?))
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}

pub struct Server<R: BlindedBlockRelayer> {
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2 changes: 1 addition & 1 deletion mev-rs/src/blinded_block_relayer/mod.rs
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Expand Up @@ -18,6 +18,6 @@ pub trait BlindedBlockRelayer {
async fn submit_bid(
&self,
signed_submission: &SignedBidSubmission,
enable_cancellations: bool,
with_cancellations: bool,
) -> Result<SignedBidReceipt, Error>;
}