ethers.js/lib.esm/_tests/create-provider.js
2023-02-02 04:05:47 -05:00

141 lines
4.0 KiB
JavaScript

import { AlchemyProvider, AnkrProvider,
// CloudflareProvider,
EtherscanProvider, InfuraProvider, PocketProvider, QuickNodeProvider, FallbackProvider, isError, } from "../index.js";
;
const ethNetworks = ["default", "mainnet", "goerli"];
//const maticNetworks = [ "matic", "maticmum" ];
const ProviderCreators = [
{
name: "AlchemyProvider",
networks: ethNetworks,
create: function (network) {
return new AlchemyProvider(network, "YrPw6SWb20vJDRFkhWq8aKnTQ8JRNRHM");
}
},
{
name: "AnkrProvider",
networks: ethNetworks.concat(["matic", "arbitrum"]),
create: function (network) {
return new AnkrProvider(network);
}
},
/*
{
name: "CloudflareProvider",
networks: [ "default", "mainnet" ],
create: function(network: string) {
return new CloudflareProvider(network);
}
},
*/
{
name: "EtherscanProvider",
networks: ethNetworks,
create: function (network) {
return new EtherscanProvider(network, "FPFGK6JSW2UHJJ2666FG93KP7WC999MNW7");
}
},
{
name: "InfuraProvider",
networks: ethNetworks,
create: function (network) {
return new InfuraProvider(network, "49a0efa3aaee4fd99797bfa94d8ce2f1");
}
},
{
name: "InfuraWebsocketProvider",
networks: ethNetworks,
create: function (network) {
return InfuraProvider.getWebSocketProvider(network, "49a0efa3aaee4fd99797bfa94d8ce2f1");
}
},
{
name: "PocketProvider",
networks: ethNetworks,
create: function (network) {
return new PocketProvider(network);
}
},
{
name: "QuickNodeProvider",
networks: ethNetworks,
create: function (network) {
return new QuickNodeProvider(network);
}
},
{
name: "FallbackProvider",
networks: ethNetworks,
create: function (network) {
const providers = [];
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 = [];
export function setupProviders() {
after(function () {
for (const func of cleanup) {
func();
}
});
setup = true;
}
export const providerNames = Object.freeze(ProviderCreators.map((c) => (c.name)));
function getCreator(provider) {
const creators = ProviderCreators.filter((c) => (c.name === provider));
if (creators.length === 1) {
return creators[0];
}
return null;
}
export function getProviderNetworks(provider) {
const creator = getCreator(provider);
if (creator) {
return creator.networks;
}
return [];
}
export function getProvider(provider, network) {
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, network) {
const creator = getCreator(provider);
return (creator != null);
}
export function connect(network) {
const provider = getProvider("InfuraProvider", network);
if (provider == null) {
throw new Error(`could not connect to ${network}`);
}
return provider;
}
//# sourceMappingURL=create-provider.js.map