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kava-proxy-service

L7 proxy that enables observability, routing, and scaling of kava APIs to the farthest reaches of the cosmos.

Usage

Service Workflows

Environment Variables

Many aspects of the service are configurable via environment variables, for example:

  • LOG_LEVEL - controls the amount of logs produced by the service, defaults to INFO, supported values in order from most verbose to least verbose are:

    • TRACE
    • DEBUG
    • INFO
    • ERROR

  • PROXY_BACKEND_HOST_URL_MAP - comma delimited list of HOSTNAME_TO_PROXY>BACKEND_PROXY_SERVER_FOR_HOSTNAME controls what backend server the proxy service will proxy a request to based on the hostname of the request. , is used as a separator between entries in the map, > is used as a separator within an entry to delimit between the hostname to proxy for and the backend to proxy to. At least one entry must be present. The same backend can be used as the proxy for multiple hostnames by creating one entry for each of the hostnames to proxy for. Example value:

PROXY_BACKEND_HOST_URL_MAP=evm.app.internal.testnet.us-east.production.kava.io>https://evmrpc.internal.testnet.proxy.kava.io,evm.data.internal.testnet.us-east.production.kava.io>https://evmrpcdata.internal.testnet.proxy.kava.io

For a full list of supported environment variables refer to the code and development environment file

Logging

The service logs to stdout using the json format, with logging configurable (via environment variables) at the following levels:

  • DEBUG
  • INFO
  • ERROR
kava-proxy-service-proxy-1  | {"level":"debug","time":"2023-03-02T19:30:18Z","caller":"/app/main.go:34","message":"initial config: {LogLevel:DEBUG}"}
kava-proxy-service-proxy-1  | {"level":"info","time":"2023-03-02T19:30:18Z","caller":"/app/main.go:37","message":"There and back again"}

Development

See Development.md.

Architecture

See architecture docs.

Feedback

For suggesting changes or reporting issues, please open a Github Issue.