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authorLeonid Logvinov <logvinov.leon@gmail.com>2017-10-03 16:38:47 +0800
committerLeonid Logvinov <logvinov.leon@gmail.com>2017-10-04 16:14:19 +0800
commitea08fc8642018a348f130d829758601b6752f4a8 (patch)
tree686608399cb3e04c45f69eb7771ff2c89dc71299 /src/web3_wrapper.ts
parent5410924810fa597b495b1ee065a68195d3725b7c (diff)
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Add getLogsAsync to web3_wrapper
Diffstat (limited to 'src/web3_wrapper.ts')
-rw-r--r--src/web3_wrapper.ts18
1 files changed, 18 insertions, 0 deletions
diff --git a/src/web3_wrapper.ts b/src/web3_wrapper.ts
index 0bf80a6e4..653205988 100644
--- a/src/web3_wrapper.ts
+++ b/src/web3_wrapper.ts
@@ -9,10 +9,12 @@ export class Web3Wrapper {
private web3: Web3;
private defaults: Partial<Web3.TxData>;
private networkIdIfExists?: number;
+ private jsonRpcRequestId: number;
constructor(provider: Web3.Provider, defaults: Partial<Web3.TxData>) {
this.web3 = new Web3();
this.web3.setProvider(provider);
this.defaults = defaults;
+ this.jsonRpcRequestId = 0;
}
public setProvider(provider: Web3.Provider) {
delete this.networkIdIfExists;
@@ -100,6 +102,16 @@ export class Web3Wrapper {
const addresses: string[] = await promisify(this.web3.eth.getAccounts)();
return addresses;
}
+ public async getLogsAsync(filter: Web3.FilterObject): Promise<Web3.LogEntry[]> {
+ const payload = {
+ jsonrpc: '2.0',
+ id: this.jsonRpcRequestId++,
+ method: 'eth_getLogs',
+ params: [filter],
+ };
+ const logs = await this.sendRawPayloadAsync(payload);
+ return logs;
+ }
private getContractInstance<A extends Web3.ContractInstance>(abi: Web3.ContractAbi, address: string): A {
const web3ContractInstance = this.web3.eth.contract(abi).at(address);
const contractInstance = new Contract(web3ContractInstance, this.defaults) as any as A;
@@ -109,4 +121,10 @@ export class Web3Wrapper {
const networkId = await promisify(this.web3.version.getNetwork)();
return networkId;
}
+ private async sendRawPayloadAsync(payload: Web3.JSONRPCRequestPayload): Promise<any> {
+ const sendAsync = this.web3.currentProvider.sendAsync.bind(this.web3.currentProvider);
+ const response = await promisify(sendAsync)(payload);
+ const result = response.result;
+ return result;
+ }
}