crossbow 0.0.11

  • readme.md
  • Installing
  • Versions
  • 29

Dart Crossbow

Build Status

Crossbow is a library for building applications as a series of pipelines.

Crossbow principles:

  • Functions should never block
  • Code should be terse
  • Futures should be hidden
  • Defaults should be sensible
  • Prefer streams over lists

Example:

(
    Http.get('/user/{username}/trips')
    | DB.select(from: table(Trip).join(User), 
        where: (query, headers) =>
            query.path('user.username').equals(headers.path('username'))
                .orderBy('trip.date').descending()
                .list())
    | Convert.toJson()
    | Results.join(by: (headers, body) => headers['request'],
            as: JsonArray)
).start();

The example above will accept HTTP connections on port 8080 on the specified URL with placeholder 'username'. It will then perform a query for the type Trip using the path parameters. The results of the query will be streamed and converted to JSON as they come in. Then the results will be joined again by the request and streamed to the response as a JSON array.

Use this package as a library

1. Depend on it

Add this to your package's pubspec.yaml file:


dependencies:
  crossbow: ^0.0.11

2. Install it

You can install packages from the command line:

with pub:


$ pub get

Alternatively, your editor might support pub get. Check the docs for your editor to learn more.

3. Import it

Now in your Dart code, you can use:


import 'package:crossbow/crossbow.dart';
  
Version Uploaded Documentation Archive
0.0.11 Mar 27, 2016 Go to the documentation of crossbow 0.0.11 Download crossbow 0.0.11 archive
0.0.10 Dec 1, 2015 Go to the documentation of crossbow 0.0.10 Download crossbow 0.0.10 archive
0.0.9 Dec 1, 2015 Go to the documentation of crossbow 0.0.9 Download crossbow 0.0.9 archive
0.0.8 Nov 25, 2015 Go to the documentation of crossbow 0.0.8 Download crossbow 0.0.8 archive
0.0.7 Nov 25, 2015 Go to the documentation of crossbow 0.0.7 Download crossbow 0.0.7 archive
0.0.6 Nov 25, 2015 Go to the documentation of crossbow 0.0.6 Download crossbow 0.0.6 archive
0.0.5 Nov 24, 2015 Go to the documentation of crossbow 0.0.5 Download crossbow 0.0.5 archive
0.0.4 Apr 21, 2015 Go to the documentation of crossbow 0.0.4 Download crossbow 0.0.4 archive
0.0.3 Apr 21, 2015 Go to the documentation of crossbow 0.0.3 Download crossbow 0.0.3 archive
0.0.2 Apr 21, 2015 Go to the documentation of crossbow 0.0.2 Download crossbow 0.0.2 archive

All 11 versions...

Popularity:
Describes how popular the package is relative to other packages. [more]
0
Health:
Code health derived from static analysis. [more]
98
Maintenance:
Reflects how tidy and up-to-date the package is. [more]
0
Overall:
Weighted score of the above. [more]
29
Learn more about scoring.

We analyzed this package on Aug 10, 2018, and provided a score, details, and suggestions below. Analysis was completed with status tool failures using:

  • Dart: 2.0.0
  • pana: 0.11.8

Platforms

Detected platforms: unsure

Error(s) prevent platform classification:

Fix dependencies in pubspec.yaml.

Issues and suggestions

Fix dependencies in pubspec.yaml.

Running pub upgrade failed with the following output:

ERR: The current Dart SDK version is 2.0.0.
 
 Because crossbow depends on io <0.3.3 which requires SDK version <2.0.0, version solving failed.

Fix platform conflicts.

Error(s) prevent platform classification:

Fix dependencies in pubspec.yaml.

Maintain CHANGELOG.md.

Changelog entries help clients to follow the progress in your code.

Add SDK constraint in pubspec.yaml.

For information about setting SDK constraint, please see https://www.dartlang.org/tools/pub/pubspec#sdk-constraints.

Package is too old.

The package was released more than two years ago.

The description is too short.

Add more detail about the package, what it does and what is its target use case. Try to write at least 60 characters.

Package is pre-v1 release.

While there is nothing inherently wrong with versions of 0.*.*, it usually means that the author is still experimenting with the general direction of the API.

Maintain an example.

Create a short demo in the example/ directory to show how to use this package. Common file name patterns include: main.dart, example.dart or you could also use crossbow.dart.

Format lib/crossbow.dart.

Run dartfmt to format lib/crossbow.dart.

Format lib/src/convert.dart.

Run dartfmt to format lib/src/convert.dart.

Fix additional 3 files with analysis or formatting issues.

Additional issues in the following files:

  • lib/src/core.dart (Run dartfmt to format lib/src/core.dart.)
  • lib/src/db.dart (Run dartfmt to format lib/src/db.dart.)
  • lib/src/http.dart (Run dartfmt to format lib/src/http.dart.)