• Blazing Fast: Mars is built with Rust, which makes it incredibly fast and efficient, ensuring that you can work with your data in real-time.

• Pipeline Processor: Mars offers a powerful pipeline processor that allows you to export Ethereum chain data to structured data quickly and easily.

• Low Cost: You can store structured data to AWS S3, Azure Blob, ensuring low cost and high availability.

• Easy to Use: Web3 visualization and analysis at your fingertips.

Download the ethetl binary from GitHub releases.

Copy the sample config to mars.toml:

[log]
level = "ERROR"
dir = "_logs"

[export]
# Exporter directory.
output_dir = "pub"

# Storage config.
[storage]
# Fs| S3 | Azblob
type = "S3"

# To use S3-compatible object storage, uncomment this block and set your values.
[storage.s3]
 bucket = "<your-bucket-name>"
 access_key_id = "<your-key-id>"
 secret_access_key = "<your-account-key>"

Note that the data will be stored to /<your-bucket-name>/pub in your S3 location.

Once you have configured Mars, you can start exporting data from the Ethereum chain:

./ethetl  -p <your-eth-node-endpoint-url> -s 16600001 -e 16600002 -c ./mars.toml

... ...

[2023-02-27T08:54:07Z INFO ] block 2 processed/2, latest block 16600002, 292 transactions processed, 292 receipts processed, 658 logs processed, 329 token_transfers processed, 1 ens processed. Progress is 100%

Here, we recommend you use a SaaS like GetBlock for your your-eth-node-endpoint-url.

Databend is the only warehouse supported by Mars, which has blazing performance and stores data to cloud-based object storage.

There are two choice for you:

• Self-Deploy. See How to deploy Databend
• Cloud. Use https://app.databend.com

You can find the schema files for Databend in the schemas/databend.

Ingesting data from S3 into Databend is straightforward. You can use Databend COPY INTO command to do that:

-- Create a external stage
-- https://databend.rs/doc/sql-commands/ddl/stage/ddl-create-stage#externalstageparams
CREATE STAGE eth_stage URL='s3://<your-s3-bucket>/pub' CONNECTION = (ACCESS_KEY_ID = '<your-access-key-ID>' SECRET_ACCESS_KEY = '<your-secret-access-key>');

-- Databend provides idempotency by keeping track of files that have already been processed for a default period of 7 days
-- https://databend.rs/doc/sql-commands/dml/dml-copy-into-table#externalstage
COPY INTO blocks FROM @eth_stage/blocks/ PATTERN = '*.*parquet' FILE_FORMAT = (type = 'PARQUET');
COPY INTO transactions FROM @eth_stage/transactions/ PATTERN = '*.*parquet' FILE_FORMAT = (type = 'PARQUET');
COPY INTO receipts FROM @eth_stage/receipts/ PATTERN = '*.*parquet' FILE_FORMAT = (type = 'PARQUET');
COPY INTO token_transfers FROM @eth_stage/token_transfers/ PATTERN = '*.*parquet' FILE_FORMAT = (type = 'PARQUET');
COPY INTO logs FROM @eth_stage/logs/ PATTERN = '*.*parquet' FILE_FORMAT = (type = 'PARQUET');
COPY INTO ens FROM @eth_stage/ens/ PATTERN = '*.*parquet' FILE_FORMAT = (type = 'PARQUET');

Mars is licensed under Apache 2.0.