Substreams for Antelope

This library contains the generated protobuffer for the Antelope blocks as well as helper methods to extract and parse block data.

📖 Documentation

https://docs.rs/substreams-antelope

Further resources

• Substreams documentation

🛠 Feature Roadmap

• [x] [Antelope blocks](https://github.com/pinax-network/firehose-antelope/blob/develop/proto/sf/antelope/type/v1/type.proto)
• [x] Block helper methods
  • [x] alltransactiontraces
  • [x] executedtransactiontraces
  • [x] transactiontracescount
  • [x] executedinputactioncount
  • [x] executedtotalactioncount
  • [x] actions()

Install

$ cargo add substreams-antelope

Quickstart

Cargo.toml

toml [dependencies] substreams = "0.5" substreams-antelope = "0.2"

src/lib.rs

```rust use substreams::prelude::*; use substreams::errors::Error; use substreams_antelope::{Block, ActionTraces};

[substreams::handlers::map]

fn mapactiontraces(block: Block) -> Result { let mut action_traces = vec![];

for trx in block.all_transaction_traces() {
    for trace in trx.action_traces {
        action_traces.push(trace);
    }
}
Ok(ActionTraces { action_traces })

} ```

Or, using actions() filter to filter all actions of Statelog type from myaccount account:

src/lib.rs

```rust

[substreams::handlers::map]

fn mapactions(paramaccount: String, block: substreams_antelope::Block) -> Result { Ok(Actions { statelogs: block.actions::(&["myaccount"]) .map(|(action, trx)| StateLog { // set action fields }) .collect(), }) } ```

Using Abigen

To generate ABI bindings for your smart contract you can add abi/contract.abi.json file containing the smart contract ABI, as well as the following build.rs file to the root of your project. This will ensure that src/abi/contract.rs module containing Rust bindings for your smart contract is always generated in your project:

build.rs

rust fn main() { substreams_antelope::Abigen::new("Contract", "abi/gems.blend.abi.json") .expect("failed to load abi") .generate() .expect("failed to generate contract") .write_to_file("src/abi/gems.blend.abi.rs") .expect("failed to write contract"); }