Implements createrawtransaction RPC method #9017
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…Tests to be added in follow-up commit.
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Looking good, thanks!
I left some first view comments but i will stop there for now as i think you are still working here.
I think it is important to have snapshot tests here and it will be good to manually compare results with zcashd (we have a tool to help with that).
| @@ -77,6 +77,10 @@ impl Height { | |||
| /// height and above. | |||
| pub const MAX_EXPIRY_HEIGHT: Height = Height(499_999_999); | |||
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| /// The number of blocks within expiry height when a tx is considered | |||
| /// to be expiring soon . | |||
| pub const BLOCK_EXPIRY_HEIGHT_THRESHOLD: u32 = 3; | |||
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Can you put a link to zcashd where this constant is defined and used ? I want to make sure they are using the same number.
| @@ -3,6 +3,8 @@ | |||
| /// Supported opcodes | |||
| /// | |||
| /// <https://github.com/zcash/zcash/blob/8b16094f6672d8268ff25b2d7bddd6a6207873f7/src/script/script.h#L39> | |||
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| #[allow(missing_docs)] | |||
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Maybe just add 1 line docs here instead?
| /// Returns the hex string of the raw transaction based on the given inputs `transactions`, `addresses`, | ||
| /// `locktime` and `expiryheight`. | ||
| /// | ||
| /// zcashd reference: [`z_create_raw_transaction`](https://zcash.github.io/rpc/createrawtransaction.html) |
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| /// zcashd reference: [`z_create_raw_transaction`](https://zcash.github.io/rpc/createrawtransaction.html) | |
| /// zcashd reference: [`createrawtransaction`](https://zcash.github.io/rpc/createrawtransaction.html) |
| /// - `addresses`: (string, required) A json object object with addresses as keys and amounts as values. | ||
| /// ["address": x.xxx] (numeric, required) They key is the Zcash address, the value is the ZEC amount |
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Please check how other addresses fields are documented for Zebra, for example https://github.com/ZcashFoundation/zebra/blob/main/zebra-rpc/src/methods.rs#L100-L101
| /// - `expiryheight`: (numeric, optional, default=nextblockheight+20 (pre-Blossom) or nextblockheight+40 (post-Blossom)) Expiry height of | ||
| /// transaction (if Overwinter is active) | ||
| /// | ||
| /// # Notes |
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| /// # Notes | |
| /// # Notes | |
| /// |
| let tip_height = best_chain_tip_height(&latest_chain_tip).map_server_error()?; | ||
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| let lock_time = if let Some(lock_time) = locktime { | ||
| LockTime::Height(block::Height(lock_time)) |
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Do you intend to get the locktime of the tip here instead ?
| )); | ||
| } | ||
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| // DoS mitigation: reject transactions expiring soon (as is done in zcashd) |
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please add a reference link
| } | ||
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| let tx = match current_upgrade { | ||
| NetworkUpgrade::Genesis | NetworkUpgrade::BeforeOverwinter => Transaction::V1 { |
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I am unsure if we need to support creating transactions that are below V4.
Implements createrawtransaction RPC method and parameter validation. Tests to be added in follow-up commit.
Motivation
The goal of this PR is to implement the create_raw_transaction RPC endpoint for zebrad. This will support the effort to fully deprecate zcashd and enhance zcashd with all existing zcashd functionality. This PR will close the following issue: #8952
Specifications & References
Solution
Tests
Follow-up Work
PR Author's Checklist
PR Reviewer's Checklist