06Networks

⚠️ The Docs have been moved to https://docs.ts.injective.network/readme/networks ⚠️

Building dApps on Injective requires being able to tap into different environments and networks where you can test your dApp with ease. As part of the injective-ts monorepo, we have the @injectivelabs/networks package which allows developers to easily access pre-defined environments to connect to different pieces of Injective.

There are two key functions exported from this package:

• export function getNetworkEndpoints(network: Network): NetworkEndpoints
• export function getEndpointsForNetwork(network: Network): OldNetworkEndpoints
• export function getNetworkInfo(network: Network): ChainInfo

The first one, getNetworkEndpoints returns a pre-defined set of endpoints that can be used by the developers - depending on their need. Here is the interface that gets returned from this function:

export type NetworkEndpoints = {
  indexer: string; // the grpc-web port of the indexer API service
  grpc: string; // the grpc-web port of the sentry node
  rest: string; // the REST endpoint of the sentry node
  rpc?: string; // the REST endpoint of the Tendermint RPC
};

/** @deprecated */
export type OldNetworkEndpoints = {
  exchangeApi: string; // @deprecated - the grpc-web port of the exchange API service
  indexerApi: string; // the grpc-web port of the indexer API service
  sentryGrpcApi: string; // the grpc-web port of the sentry node
  sentryHttpApi: string; // the REST endpoint of the sentry node
  tendermintApi?: string; // the REST endpoint of the Tendermint RPC
  chronosApi?: string; // the REST endpoint of the chronos API service
  exchangeWeb3GatewayApi?: string; // the grpc-web port of the web3-gateway service API
};

Lets explain these endpoints, and what do they mean:

• indexer is the grpc-web endpoint that we can use to connect to the exchange/indexer service which listens for events from the chain, processes the events and stores the data into a mongoDB so its easier and much more performant to serve that data than querying it straight from the chain itself,
• grpc is the grpc-web endpoint that we can use to connect to a sentry node. A Sentry node is basically a read (and light) only version of the chain that we can use to query data directly from the chain.
• rest is the REST endpoint that we can use to connect to a sentry node.
• rpc is the REST endpoint that we can use to connect to the Tendermint RPC,

The getNetworkInfo exports these endpoints plus the chainId and the default fee for the Network we want.