This repository contains boilerplate scripts, abis and schema for indexing (catch all contract events/transactions) and syncing it to your own database.

• 🏁 Getting Started
• 💎 Examples
• 🚀 Next Steps
• 🤔 FAQ

git clone https://github.com/flair-sdk/starter-boilerplate.git my-indexer
cd my-indexer && pnpm i

or open in gitpod:

pnpm flair auth

There are config.dev.json and config.prod.json sample configs for dev and prod clusters.

Set a globally unique namespace in each config file (recommended to use {ORG_NAME}-{ENV}; e.g sushiswap-dev or sushiswap-prod):

# Setting configs for dev testing
cp config.dev.json config.json

# Or setting it for production
cp config.prod.json config.json

Also add the ABI of your contract under src/abis/abi.json.

pnpm generate-and-deploy

# You can backfill for a specific block number, for all relevant events and transactions:
pnpm flair backfill --chain 1 -b 17998797

# Or backfill for the recent data of your contracts in the last 5 minutes:
pnpm flair backfill --chain 1 --min-timestamp="5 mins ago"

pnpm flair logs --full --watch

pnpm flair logs --full -tag Level=error
pnpm flair logs --full -tag Level=warn

pnpm flair logs --full -tag ProcessorId=basic-events
pnpm flair logs --full -tag ProcessorId=basic-transactions --watch
pnpm flair logs --full -tag TransactionHash=0x0000000000000000...

Visit the playground and run the following query in Examples section.

• Method: POST
• Endpoint: https://api.flair.build/
• Headers: X-API-KEY: <your-api-key>
• Body:

query {
  sql(
    query: """
    SELECT
        *
    FROM
        entities
    WHERE
        namespace = 'boilerplate-dev'
    """
  ) {
    stats {
      elapsedMs
    }
    rows
  }
}

The current flow covers a very basic indexing use-case. For more advanced ones, check out the flair-sdk/examples repository.

Q: How do I enable/disable real-time ingestion for indexer?
A: For each indexer defined in config.json, you can enable/disable it via the enabled: true/false flag. Remember to run pnpm generate-and-deploy for the changes to apply on the cluster.

Q: How do I configure MongoDB?
A: Run the below command in terminal:

pnpm flair secret set -n mongodb.uri -v mongodb+srv://USERNAME:PASSWORD@HOST:PORT/DB_NAME

You can also manually define the schema under src/schemas or by running the below command:

pnpm flair util infer-schema