web3-core#HttpProvider TypeScript Examples

The following examples show how to use web3-core#HttpProvider. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: eth-like-web3-public.ts    From rubic-app with GNU General Public License v3.0 6 votes vote down vote up 
/**
   * Sends batch request to rpc provider directly.
   * @see {@link https://playground.open-rpc.org/?schemaUrl=https://raw.githubusercontent.com/ethereum/eth1.0-apis/assembled-spec/openrpc.json&uiSchema%5BappBar%5D%5Bui:splitView%5D=false&uiSchema%5BappBar%5D%5Bui:input%5D=false&uiSchema%5BappBar%5D%5Bui:examplesDropdown%5D=false|EthereumJSON-RPC}
   * @param rpcCallsData rpc methods and parameters list
   * @return rpc batch request call result sorted in order of input parameters
   */
  private async rpcBatchRequest<T extends string | string[]>(
    rpcCallsData: {
      rpcMethod: string;
      params: Object;
    }[]
  ): Promise<T[]> {
    const seed = Date.now();
    const batch = rpcCallsData.map((callData, index) => ({
      id: seed + index,
      jsonrpc: '2.0',
      method: callData.rpcMethod,
      params: [{ ...callData.params }]
    }));

    const response = await this.httpClient
      .post<RpcResponse<T>[]>((<HttpProvider>this.web3.currentProvider).host, batch)
      .toPromise();

    if (Array.isArray(response)) {
      return response.sort((a, b) => a.id - b.id).map(item => (item.error ? null : item.result));
    }
    return [response];
  }
Example #2
Source File: chain.ts    From rubic-sdk with GNU General Public License v3.0 6 votes vote down vote up 
private async sendRpcRequest(method: string, params: string[]): Promise<void> {
        await util.promisify(
            (this.web3.currentProvider as HttpProvider).send.bind(this.web3.currentProvider)
        )({
            method,
            params,
            jsonrpc: '2.0',
            id: new Date().getTime()
        });
    }
Example #3
Source File: web3-public.ts    From rubic-sdk with GNU General Public License v3.0 6 votes vote down vote up 
/**
     * @description send batch request to rpc provider directly
     * @see {@link https://playground.open-rpc.org/?schemaUrl=https://raw.githubusercontent.com/ethereum/eth1.0-apis/assembled-spec/openrpc.json&uiSchema%5BappBar%5D%5Bui:splitView%5D=false&uiSchema%5BappBar%5D%5Bui:input%5D=false&uiSchema%5BappBar%5D%5Bui:examplesDropdown%5D=false|EthereumJSON-RPC}
     * @param rpcCallsData rpc methods and parameters list
     * @returns rpc batch request call result sorted in order of input 1parameters
     */
    public async rpcBatchRequest<T extends string | string[]>(
        rpcCallsData: {
            rpcMethod: string;
            params: Object;
        }[]
    ): Promise<(T | null)[]> {
        const seed = Date.now();
        const batch = rpcCallsData.map((callData, index) => ({
            id: seed + index,
            jsonrpc: '2.0',
            method: callData.rpcMethod,
            params: [{ ...callData.params }]
        }));

        const httpClient = await this.getHttpClient();

        const response = await httpClient.post<RpcResponse<T>[]>(
            (<HttpProvider>this.web3.currentProvider).host,
            batch
        );

        return response.sort((a, b) => a.id - b.id).map(item => (item.error ? null : item.result));
    }