@unstoppabledomains/resolution
Version:
Domain Resolution for blockchain domains
229 lines (228 loc) • 11.2 kB
JavaScript
;
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Object.defineProperty(exports, "__esModule", { value: true });
exports.Eip1993Factories = void 0;
var configurationError_1 = require("../errors/configurationError");
var resolutionError_1 = __importStar(require("../errors/resolutionError"));
exports.Eip1993Factories = {
fromWeb3Version0Provider: fromWeb3Version0Provider,
fromWeb3Version1Provider: fromWeb3Version1Provider,
fromEthersProvider: fromEthersProvider,
fromZilliqaProvider: fromZilliqaProvider,
};
/**
* Create a Provider instance from web3 0.x version provider
* @param provider - an 0.x version provider from web3 ( must implement sendAsync(payload, callback) )
* @see https://github.com/ethereum/web3.js/blob/0.20.7/lib/web3/httpprovider.js#L116
*/
function fromWeb3Version0Provider(provider) {
if (provider.sendAsync === undefined) {
throw new configurationError_1.ConfigurationError(configurationError_1.ConfigurationErrorCode.IncorrectProvider);
}
return {
request: function (request) {
return new Promise(function (resolve, reject) {
provider.sendAsync({
jsonrpc: '2.0',
method: request.method,
params: wrapArray(request.params),
id: 1,
}, function (error, result) {
if (error) {
reject(error);
}
if (result.error) {
reject(new resolutionError_1.default(resolutionError_1.ResolutionErrorCode.ServiceProviderError, {
providerMessage: result.error,
}));
}
resolve(result.result);
});
});
},
};
}
/**
* Create a Provider instance from web3 1.x version provider
* @param provider - an 1.x version provider from web3 ( must implement send(payload, callback) )
* @see https://github.com/ethereum/web3.js/blob/1.x/packages/web3-core-helpers/types/index.d.ts#L165
* @see https://github.com/ethereum/web3.js/blob/1.x/packages/web3-providers-http/src/index.js#L95
*/
function fromWeb3Version1Provider(provider) {
if (provider && provider.send === undefined) {
throw new configurationError_1.ConfigurationError(configurationError_1.ConfigurationErrorCode.IncorrectProvider);
}
return {
request: function (request) {
return new Promise(function (resolve, reject) {
provider.send({
jsonrpc: '2.0',
method: request.method,
params: wrapArray(request.params),
id: 1,
}, function (error, result) {
if (error) {
reject(error);
}
if (result.error) {
reject(new resolutionError_1.default(resolutionError_1.ResolutionErrorCode.ServiceProviderError, {
providerMessage: result.error,
}));
}
resolve(result.result);
});
});
},
};
}
/**
* Creates a Provider instance from a provider that implements Ethers Provider#call interface.
* This wrapper support only `eth_call` method for now, which is enough for all the current Resolution functionality
* @param provider - provider object
* @see https://github.com/ethers-io/ethers.js/blob/v4-legacy/providers/abstract-provider.d.ts#L91
* @see https://github.com/ethers-io/ethers.js/blob/v5.0.4/packages/abstract-provider/src.ts/index.ts#L224
* @see https://docs.ethers.io/ethers.js/v5-beta/api-providers.html#jsonrpcprovider-inherits-from-provider
* @see https://github.com/ethers-io/ethers.js/blob/master/packages/providers/src.ts/json-rpc-provider.ts
*/
function fromEthersProvider(provider) {
var _this = this;
if (provider.call === undefined) {
throw new configurationError_1.ConfigurationError(configurationError_1.ConfigurationErrorCode.IncorrectProvider);
}
return {
request: function (request) { return __awaiter(_this, void 0, void 0, function () {
var _a, error_1;
return __generator(this, function (_b) {
switch (_b.label) {
case 0:
_b.trys.push([0, 7, , 8]);
_a = request.method;
switch (_a) {
case 'eth_call': return [3 /*break*/, 1];
case 'eth_getLogs': return [3 /*break*/, 3];
}
return [3 /*break*/, 5];
case 1: return [4 /*yield*/, provider.call(request.params[0])];
case 2: return [2 /*return*/, _b.sent()];
case 3: return [4 /*yield*/, provider.getLogs(request.params[0])];
case 4: return [2 /*return*/, _b.sent()];
case 5: throw new resolutionError_1.default(resolutionError_1.ResolutionErrorCode.ServiceProviderError, {
providerMessage: "Unsupported provider method ".concat(request.method),
});
case 6: return [3 /*break*/, 8];
case 7:
error_1 = _b.sent();
throw new resolutionError_1.default(resolutionError_1.ResolutionErrorCode.ServiceProviderError, {
providerMessage: error_1.message,
});
case 8: return [2 /*return*/];
}
});
}); },
};
}
/**
* Creates a Provider instance from @zilliqa-js/core Provider
* @param provider - provider object
*/
function fromZilliqaProvider(provider) {
var _this = this;
if (provider.middleware === undefined || provider.send === undefined) {
throw new configurationError_1.ConfigurationError(configurationError_1.ConfigurationErrorCode.IncorrectProvider);
}
return {
request: function (request) { return __awaiter(_this, void 0, void 0, function () {
var resp, error_2;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
_a.trys.push([0, 2, , 3]);
return [4 /*yield*/, provider.send.apply(provider, __spreadArray([request.method], (request.params || []), false))];
case 1:
resp = _a.sent();
if (resp.error) {
throw new Error(resp.error.message);
}
return [2 /*return*/, resp.result];
case 2:
error_2 = _a.sent();
throw new resolutionError_1.default(resolutionError_1.ResolutionErrorCode.ServiceProviderError, {
providerMessage: error_2.message,
});
case 3: return [2 /*return*/];
}
});
}); },
};
}
function wrapArray(params) {
if (params === void 0) { params = []; }
return params instanceof Array ? params : [params];
}