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AlchemyProvider,
BlockscoutProvider,
// AnkrProvider,
// CloudflareProvider,
ChainstackProvider,
EtherscanProvider,
InfuraProvider,
// PocketProvider,
// QuickNodeProvider,
JsonRpcProvider,
FallbackProvider,
isError,
} from "../index.js";
import { inspect } from "./utils-debug.js";
import type { AbstractProvider } from "../index.js";
import { INFURA_APIKEY } from "./utils.js";
interface ProviderCreator {
name: string;
networks: Array<string>;
create: (network: string) => null | AbstractProvider;
};
const ethNetworks = [ "default", "mainnet", "sepolia" ];
//const maticNetworks = [ "matic", "maticmum" ];
const ProviderCreators: Array<ProviderCreator> = [
{
name: "AlchemyProvider",
networks: ethNetworks,
create: function(network: string) {
return new AlchemyProvider(network, "YrPw6SWb20vJDRFkhWq8aKnTQ8JRNRHM");
}
},
{
name: "BlockscoutProvider",
//networks: ethNetworks, // @TODO: they are backfilling some Sepolia txs
networks: [ "mainnet" ],
create: function(network: string) {
//return new BlockscoutProvider(network);
return new BlockscoutProvider(network, "fdbfa288-1695-454e-a369-4501253a120");
}
},
/*
{
name: "AnkrProvider",
networks: ethNetworks.concat([ "matic", "arbitrum" ]),
create: function(network: string) {
return new AnkrProvider(network);
}
},
*/
/*
{
name: "CloudflareProvider",
networks: [ "default", "mainnet" ],
create: function(network: string) {
return new CloudflareProvider(network);
}
},
*/
{
name: "ChainstackProvider",
networks: [ "default", "mainnet", "arbitrum", "bnb", "matic" ],
create: function(network: string) {
return new ChainstackProvider(network);
}
},
{
name: "EtherscanProvider",
networks: ethNetworks,
create: function(network: string) {
return new EtherscanProvider(network, "FPFGK6JSW2UHJJ2666FG93KP7WC999MNW7");
}
},
{
name: "InfuraProvider",
networks: ethNetworks,
create: function(network: string) {
return new InfuraProvider(network, INFURA_APIKEY || undefined);
}
},
/*
{
name: "InfuraWebsocketProvider",
networks: ethNetworks,
create: function(network: string) {
return InfuraProvider.getWebSocketProvider(network, "49a0efa3aaee4fd99797bfa94d8ce2f1");
}
},
*/
/*
{
name: "PocketProvider",
networks: ethNetworks,
create: function(network: string) {
return new PocketProvider(network);
}
},
*/
/*
{
name: "QuickNodeProvider",
networks: ethNetworks,
create: function(network: string) {
return new QuickNodeProvider(network);
}
},
*/
{
name: "FallbackProvider",
networks: ethNetworks,
create: function(network: string) {
const providers: Array<AbstractProvider> = [];
for (const providerName of [ "AlchemyProvider", "AnkrProvider", "EtherscanProvider", "InfuraProvider" ]) {
const provider = getProvider(providerName, network);
if (provider) { providers.push(provider); }
}
if (providers.length === 0) { throw new Error("UNSUPPORTED NETWORK"); }
return new FallbackProvider(providers);
}
},
];
let setup = false;
const cleanup: Array<() => void> = [ ];
export function setupProviders(): void {
after(function() {
for (const func of cleanup) { func(); }
});
setup = true;
}
export const providerNames = Object.freeze(ProviderCreators.map((c) => (c.name)));
function getCreator(provider: string): null | ProviderCreator {
const creators = ProviderCreators.filter((c) => (c.name === provider));
if (creators.length === 1) { return creators[0]; }
return null;
}
export function getProviderNetworks(provider: string): Array<string> {
const creator = getCreator(provider);
if (creator) { return creator.networks; }
return [ ];
}
export function getProvider(provider: string, network: string): null | AbstractProvider {
if (setup == false) { throw new Error("MUST CALL setupProviders in root context"); }
const creator = getCreator(provider);
try {
if (creator) {
const provider = creator.create(network);
if (provider) {
cleanup.push(() => { provider.destroy(); });
}
return provider;
}
} catch (error) {
if (!isError(error, "INVALID_ARGUMENT")) { throw error; }
}
return null;
}
export function checkProvider(provider: string, network: string): boolean {
const creator = getCreator(provider);
return (creator != null && creator.networks.indexOf(network) >= 0);
}
export function getDevProvider(): JsonRpcProvider {
class HikackEnsProvider extends JsonRpcProvider {
async resolveName(name: string): Promise<null | string> {
if (name === "tests.eth") {
return "0x228568EA92aC5Bc281c1E30b1893735c60a139F1";
}
return super.resolveName(name);
}
}
const provider = new HikackEnsProvider("http:/\/127.0.0.1:8545");
provider.on("error", (error: any) => {
setTimeout(() => {
if (error && error.event === "initial-network-discovery") {
console.log(inspect(error));
}
provider.off("error");
}, 100);
});
return provider;
}
export function connect(network: string): AbstractProvider {
const provider = getProvider("InfuraProvider", network);
if (provider == null) { throw new Error(`could not connect to ${ network }`); }
return provider;
}
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