예제 #1
0
        /// <summary>
        /// Retrieves the details regarding a file stored on the network.
        /// </summary>
        /// <param name="file">
        /// Address of the file to query.
        /// </param>
        /// <param name="configure">
        /// Optional callback method providing an opportunity to modify
        /// the execution configuration for just this method call.
        /// It is executed prior to submitting the request to the network.
        /// </param>
        /// <returns>
        /// The details of the network file, excluding content.
        /// </returns>
        /// <exception cref="ArgumentOutOfRangeException">If required arguments are missing.</exception>
        /// <exception cref="InvalidOperationException">If required context configuration is missing.</exception>
        /// <exception cref="PrecheckException">If the gateway node create rejected the request upon submission.</exception>
        public async Task <FileInfo> GetFileInfoAsync(Address file, Action <IContext>?configure = null)
        {
            file = RequireInputParameter.File(file);
            await using var context = CreateChildContext(configure);
            var query = new Query
            {
                FileGetInfo = new FileGetInfoQuery
                {
                    Header = Transactions.CreateAskCostHeader(),
                    FileID = Protobuf.ToFileId(file)
                }
            };
            var response = await Transactions.ExecuteUnsignedAskRequestWithRetryAsync(context, query, getRequestMethod, getResponseHeader);

            long cost = (long)response.FileGetInfo.Header.Cost;

            if (cost > 0)
            {
                var transactionId = Transactions.GetOrCreateTransactionID(context);
                query.FileGetInfo.Header = await Transactions.CreateAndSignQueryHeaderAsync(context, cost, transactionId);

                response = await Transactions.ExecuteSignedRequestWithRetryAsync(context, query, getRequestMethod, getResponseHeader);

                ValidateResult.ResponseHeader(transactionId, getResponseHeader(response));
            }
            return(Protobuf.FromFileInfo(response.FileGetInfo.FileInfo));
예제 #2
0
        /// <summary>
        /// Retrieves the details regarding a file stored on the network.
        /// </summary>
        /// <param name="file">
        /// Address of the file to query.
        /// </param>
        /// <param name="configure">
        /// Optional callback method providing an opportunity to modify
        /// the execution configuration for just this method call.
        /// It is executed prior to submitting the request to the network.
        /// </param>
        /// <returns>
        /// The details of the network file, excluding content.
        /// </returns>
        /// <exception cref="ArgumentOutOfRangeException">If required arguments are missing.</exception>
        /// <exception cref="InvalidOperationException">If required context configuration is missing.</exception>
        /// <exception cref="PrecheckException">If the gateway node create rejected the request upon submission.</exception>
        public async Task <FileInfo> GetFileInfoAsync(Address file, Action <IContext>?configure = null)
        {
            file = RequireInputParameter.File(file);
            var context         = CreateChildContext(configure);
            var gateway         = RequireInContext.Gateway(context);
            var payer           = RequireInContext.Payer(context);
            var transfers       = Transactions.CreateCryptoTransferList((payer, -context.FeeLimit), (gateway, context.FeeLimit));
            var transactionId   = Transactions.GetOrCreateTransactionID(context);
            var transactionBody = Transactions.CreateCryptoTransferTransactionBody(context, transfers, transactionId, "Get File Info");
            var query           = new Query
            {
                FileGetInfo = new FileGetInfoQuery
                {
                    Header = Transactions.SignQueryHeader(transactionBody, payer),
                    FileID = Protobuf.ToFileId(file)
                }
            };
            var response = await Transactions.ExecuteRequestWithRetryAsync(context, query, getRequestMethod, getResponseCode);

            ValidateResult.PreCheck(transactionId, getResponseCode(response));
            return(Protobuf.FromFileInfo(response.FileGetInfo.FileInfo));