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Description:
buxing
An HTTP file downloader packed with many features -> resumable downloads, multiple connections, buffering, auto-retry, etc.
Features #
Resumable downloads.
Supports multiple connections.
Auto buffering for less disk writes.
Auto HTTP connection retry via the builtin RetryClient.
Usage #
Install and import this package:
import 'package:buxing/buxing.dart';
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A simple task #
void main() async {
var task = Task(
Uri.parse('https://golang.org/dl/go1.17.3.src.tar.gz'), 'go1.17.3.src.tar.gz');
await task.start();
}
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Progress reporting #
Progress events are raised through Task.onProgress:
task.onProgress = (prog) => print(prog.transferred / prog.total);
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Multiple connections #
To enable multiple connections, set the optional worker param in constructor and pass a ParallelWorker.
var task = Task(Uri.parse('https://golang.org/dl/go1.17.3.src.tar.gz'),
'go1.17.3.src.tar.gz',
worker: ParallelWorker()); // A `ParallelWorker` enables multiple connections.
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By default ParallelWorker manages concurrency by itself, you can explicitly set the number of concurrent connections:
ParallelWorker(concurrency: 10)
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Buffer size #
The defaults are, 200 KB for a single-connection task, 50 KB per connection for a multi-connection task.
To set the buffer size:
// Single-connection task
var task = Task(Uri.parse('URL'), 'FILE',
worker: Worker(bufferSize: 100000)); // 100 KB
// Multi-connection task.
var task = Task(Uri.parse('URL'), 'FILE',
worker: ParallelWorker(bufferSize: 100000)); // 100 KB
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Logging #
To enable logging, set the logger field:
var task = Task(Uri.parse('https://golang.org/dl/go1.17.3.src.tar.gz'),
'downloads/go1.17.3.src.tar.gz',
logger: Logger(level: LogLevel.info));
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Log levels:
enum LogLevel { verbose, info, warning, error }
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License
For personal and professional use. You cannot resell or redistribute these repositories in their original state.
Files In This Product:
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