gap-filler

README

gap-filler

gap-filler service runs graphql proxy, handle predefined list of queries from eth-watcher-ts and if response from indexer's postgraphile is empty, them call geth-statediff to generate state diff.

Application Diagram

Usage

After building the binary, run as

./gap-filler proxy

Supported GraphQL Queries

• ethHeaderCidByBlockNumber

Environment Variables

Name	Default Value	Comment
GQL_TARGET	http://127.0.0.1:5020/graphql	URL of source Postgraphile
GQL_GUI	false	Enable graphiql interface
RPC_ETH	http://127.0.0.1:8545	Comma separated Ethereum rpc addresses
RPC_TRACING	http://127.0.0.1:8545	Comma separated Ethereum rpc addresses
HTTP_HOST	127.0.0.1	Gap-filler host
HTTP-PORT	8080	Gap-filler port
HTTP-PATH	/	Gap-filler base path. Result URL is http://$HTTP_HOST:$HTTP-PORT$HTTP-PATH/graphql