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Tx Sitter Monolith

Note that this software is still under development. Use at your own discretion

An easy to run transaction relayer.

Quickstart

Copy .env.example to .env or set RUST_LOG=info,service=debug to have logging.

  1. Spin up the database docker run --rm -e POSTGRES_HOST_AUTH_METHOD=trust -p 5432:5432 postgres
  2. Spin up a chain anvil --chain-id 31337 --block-time 2
  3. Start the service cargo run
  4. Visit http://localhost:3000/swagger or http://localhost:3000/rapidoc to interact with the api. Redoc ui is also available at http://localhost:3000/redoc but it's not interactive.

API schema can be downloaded from http://localhost:3000/schema.json or http://localhost:3000/schema.yml

This will use the config.toml configuration.

Error reporting & debugging

For a better local development experience the .env.example enables color-eyre reporting.

But that by default doesn't include the backtrace or code snippets. In order to enable snippets run with RUST_LIB_BACKTRACE=full.

Configuration

The Tx Sitter can be configured in 2 ways:

  1. Using the config file, refer to config.rs and config.toml for more info

  2. Using env vars. Every field in the config can also be set via an env var. For example the following config

     [service]
 escalation_interval = "1m"

 [server]
 host = "127.0.0.1:3000"
 disable_auth = true

 [database]
 connection_string = "postgres://postgres:[email protected]:5432/database"

 [keys]
 kind = "local"

    Can also be expressed with env vars

    TX_SITTER__SERVICE__ESCALATION_INTERVAL="1m"
TX_SITTER__SERVER__HOST="127.0.0.1:3000"
TX_SITTER__SERVER__DISABLE_AUTH="true"
TX_SITTER__DATABASE__CONNECTION_STRING="postgres://postgres:[email protected]:5432/database"
TX_SITTER__KEYS__KIND="local"

Running tests

While you obviously can run tests with

cargo test --workspace

some tests take quite a long time (due to spinning up an anvil node, sending txs, etc.).

Therefore I recommend cargo-nextest as it runs all the tests in parallel. Once installed

cargo nextest run --workspace

can be used instead.

Client

Client crate is located in creates/tx-sitter-client. It is generated using official OpenAPI generator with modified template files. Modified template files are located in client-template/ directory. Possible files to overwrite could be fined here https://github.com/OpenAPITools/openapi-generator/tree/master/modules/openapi-generator/src/main/resources/rust.

Runnin script

Just run ./generate_api_client.sh.

Manual generation

To generate client OpenAPI spec schema is required. To get one just run api spec generator command:

cargo run --bin api_spec_generator > schema.yaml

Client generation is done by using default OpenAPI tools. You can install generator or use docker image as shown below:

docker run --rm -v "${PWD}:/local" --user "$(id -u):$(id -g)" -- openapitools/openapi-generator-cli generate \
  -i /local/schema.yaml \
  -g rust \
  -o /local/crates/tx-sitter-client \
  -t /local/client-template \
  --skip-validate-spec \
  --additional-properties=packageName=tx-sitter-client,supportMiddleware=true,useSingleRequestParameter=true,avoidBoxedModels=true \
  --type-mappings=address=base_api_types::Address,decimal-u256=base_api_types::DecimalU256,h256=base_api_types::H256,bytes=base_api_types::HexBytes,hex-u256=base_api_types::HexU256