Awesome
oasis-web3-gateway
Web3 Gateway for Oasis-SDK Paratime EVM module.
Building and Testing
Prerequisites
- Go (at least version 1.22).
- PostgreSQL (at least version 13.3).
Additionally, for testing:
- Oasis Core at least version 24.0.x.
- Emerald Paratime at least version 11.x.x.
- (or) Sapphire Paratime at least version 0.7.3.
Build
To build the binary run:
make build
Testing on Localnet
The Docker containers can be used to test changes to the gateway or run tests by
bind-mounting the runtime state directory (/serverdir/node
) into your local
filesystem.
docker run --rm -ti -p5432:5432 -p8544-8548:8544-8548 -v /tmp/eth-runtime-test:/serverdir/node ghcr.io/oasisprotocol/sapphire-localnet:local
If needed, the oasis-web3-gateway
or sapphire-paratime
executables could also be
bind-mounted into the container, allowing for quick turnaround time when testing
the full gateway & paratime stack together.
Running tests
For running tests, start the docker network without the gateway, by setting the OASIS_DOCKER_NO_GATEWAY=yes
environment variable:
docker run --rm -ti -e OASIS_DOCKER_NO_GATEWAY=yes -p5432:5432 -p8544-8548:8544-8548 -v /tmp/eth-runtime-test:/serverdir/node ghcr.io/oasisprotocol/sapphire-localnet:local
Once bootstrapped, run the tests:
make test
Localnet Docker images
You can also build emerald-dev
and sapphire-dev
docker images with a
complete confidential and non-confidential Localnet Oasis stack respectively
for development, CI and testing.
make docker
Check out docker folder for more information.
Running the Gateway on Testnet/Mainnet
The gateway connects to an Emerald/Sapphire enabled Oasis ParaTime Client Node.
In addition to the general instructions for setting up an Oasis ParaTime Client
Node update the node configuration (e.g. config.yml
) as follows:
# ... sections not relevant are omitted ...
runtime:
mode: client
paths:
- <orc_bundle_path>
config:
"<paratime_id>":
# The following allows the gateway to perform gas estimation of smart
# contract calls (not allowed by default).
estimate_gas_by_simulating_contracts: true
# The following allows some more resource-intensive queries to be called
# by the gateway (not allowed by default).
allowed_queries:
- all_expensive: true
Set up the config file (e.g. gateway.yml
) appropriately:
runtime_id: <paratime_id>
node_address: "unix:<path-to-oasis-node-unix-socket>"
enable_pruning: false
pruning_step: 100000
indexing_start: 0
log:
level: debug
format: json
database:
host: <postgresql_host>
port: <postgresql_port>
db: <postgresql_db>
user: <postgresql_user>
password: <postgresql_password>
dial_timeout: 5
read_timeout: 10
write_timeout: 5
max_open_conns: 0
gateway:
chain_id: <chain_id>
http:
host: <gateway_listen_interface>
port: <gateway_listen_port>
cors: ["*"]
ws:
host: <gateway_listen_interface>
port: <gateway_listen_websocket_port>
origins: ["*"]
method_limits:
get_logs_max_rounds: 100
oasis_rpcs: true # Enable Oasis-specific requests for confidentiality etc.
Note: all configuration settings can also be set via environment variables. For example to set the database password use:
DATABASE__PASSWORD: <postgresql_password>
environment variable.
Start the gateway by running the oasis-web3-gateway
binary:
oasis-web3-gateway --config gateway.yml
Wipe state to force a complete reindex
To wipe the DB state and force a reindexing use the truncate-db
subcommand:
oasis-web3-gateway truncate-db --config gateway.yml --unsafe
Warning: this will wipe all existing state in the Postgres DB and can lead to extended downtime while the Web3 Gateway is reindexing the blocks.
Contributing
See our Contributing Guidelines.
Versioning
See our Versioning document.
Release Process
See our Release Process document.
Credits
Parts of the code heavily based on go-ethereum.