ethers.js/lib.commonjs/providers/provider-ankr.js
2023-01-28 01:53:29 -05:00

107 lines
3.6 KiB
JavaScript

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.AnkrProvider = void 0;
/**
* [[link-ankr]] provides a third-party service for connecting to
* various blockchains over JSON-RPC.
*
* **Supported Networks**
*
* - Ethereum Mainnet (``mainnet``)
* - Goerli Testnet (``goerli``)
* - Polygon (``matic``)
* - Arbitrum (``arbitrum``)
*
* @_subsection: api/providers/thirdparty:Ankr [providers-ankr]
*/
const index_js_1 = require("../utils/index.js");
const community_js_1 = require("./community.js");
const network_js_1 = require("./network.js");
const provider_jsonrpc_js_1 = require("./provider-jsonrpc.js");
const defaultApiKey = "9f7d929b018cdffb338517efa06f58359e86ff1ffd350bc889738523659e7972";
function getHost(name) {
switch (name) {
case "mainnet":
return "rpc.ankr.com/eth";
case "goerli":
return "rpc.ankr.com/eth_goerli";
case "matic":
return "rpc.ankr.com/polygon";
case "arbitrum":
return "rpc.ankr.com/arbitrum";
}
(0, index_js_1.assertArgument)(false, "unsupported network", "network", name);
}
/**
* The **AnkrProvider** connects to the [[link-ankr]]
* JSON-RPC end-points.
*
* By default, a highly-throttled API key is used, which is
* appropriate for quick prototypes and simple scripts. To
* gain access to an increased rate-limit, it is highly
* recommended to [sign up here](link-ankr-signup).
*/
class AnkrProvider extends provider_jsonrpc_js_1.JsonRpcProvider {
/**
* The API key for the Ankr connection.
*/
apiKey;
/**
* Create a new **AnkrProvider**.
*
* By default connecting to ``mainnet`` with a highly throttled
* API key.
*/
constructor(_network, apiKey) {
if (_network == null) {
_network = "mainnet";
}
const network = network_js_1.Network.from(_network);
if (apiKey == null) {
apiKey = defaultApiKey;
}
// Ankr does not support filterId, so we force polling
const options = { polling: true, staticNetwork: network };
const request = AnkrProvider.getRequest(network, apiKey);
super(request, network, options);
(0, index_js_1.defineProperties)(this, { apiKey });
}
_getProvider(chainId) {
try {
return new AnkrProvider(chainId, this.apiKey);
}
catch (error) { }
return super._getProvider(chainId);
}
/**
* Returns a prepared request for connecting to %%network%% with
* %%apiKey%%.
*/
static getRequest(network, apiKey) {
if (apiKey == null) {
apiKey = defaultApiKey;
}
const request = new index_js_1.FetchRequest(`https:/\/${getHost(network.name)}/${apiKey}`);
request.allowGzip = true;
if (apiKey === defaultApiKey) {
request.retryFunc = async (request, response, attempt) => {
(0, community_js_1.showThrottleMessage)("AnkrProvider");
return true;
};
}
return request;
}
getRpcError(payload, error) {
if (payload.method === "eth_sendRawTransaction") {
if (error && error.error && error.error.message === "INTERNAL_ERROR: could not replace existing tx") {
error.error.message = "replacement transaction underpriced";
}
}
return super.getRpcError(payload, error);
}
isCommunityResource() {
return (this.apiKey === defaultApiKey);
}
}
exports.AnkrProvider = AnkrProvider;
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