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snap-core: Snap: A Haskell Web Framework (core interfaces and types)
Snap is a simple and fast web development framework and server written in Haskell. For more information or to download the latest version, you can visit the Snap project website at https://snapframework.com/.
This library contains the core definitions and types for the Snap framework, including:
Primitive types and functions for HTTP (requests, responses, cookies, post/query parameters, etc)
A monad for programming web handlers called "Snap", which allows:
Stateful access to the HTTP request and response objects
Monadic failure (i.e. MonadPlus/Alternative instances) for declining to handle requests and chaining handlers together
Early termination of the computation if you know early what you want to return and want to prevent further monadic processing
Quick start: The Snap monad and HTTP definitions are in Snap.Core.
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Flags
Automatic Flags
| Name | Description | Default |
|---|---|---|
| portable | Compile in cross-platform mode. No platform-specific code or optimizations such as C routines will be used. | Disabled |
| debug | Enable debug logging code. With this flag, Snap will
test the DEBUG environment variable to decide whether to do
logging, and this introduces a tiny amount of overhead
(a call into a function pointer) because the calls to | Disabled |
| network-uri | Get Network.URI from the network-uri package | Enabled |
Use -f <flag> to enable a flag, or -f -<flag> to disable that flag. More info
Downloads
- snap-core-1.0.5.1.tar.gz [browse] (Cabal source package)
- Package description (revised from the package)
Note: This package has metadata revisions in the cabal description newer than included in the tarball. To unpack the package including the revisions, use 'cabal get'.
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| Versions [RSS] | 0.1.1, 0.1.2, 0.2.1, 0.2.2, 0.2.3, 0.2.4, 0.2.5, 0.2.6, 0.2.7, 0.2.7.1, 0.2.8, 0.2.8.1, 0.2.9, 0.2.10, 0.2.11, 0.2.12, 0.2.13, 0.2.14, 0.2.15, 0.2.15.1, 0.2.16, 0.3.0, 0.3.1, 0.3.1.1, 0.4.0, 0.4.0.1, 0.4.0.2, 0.4.1, 0.4.2, 0.4.3, 0.5.0, 0.5.1, 0.5.1.1, 0.5.1.2, 0.5.1.3, 0.5.1.4, 0.5.2, 0.5.3, 0.5.3.1, 0.5.4, 0.5.5, 0.6.0, 0.6.0.1, 0.7, 0.7.0.1, 0.8.0, 0.8.0.1, 0.8.1, 0.9.0, 0.9.2, 0.9.2.1, 0.9.2.2, 0.9.3, 0.9.3.1, 0.9.4.0, 0.9.4.1, 0.9.5.0, 0.9.6.0, 0.9.6.1, 0.9.6.2, 0.9.6.3, 0.9.6.4, 0.9.7.0, 0.9.7.2, 0.9.8.0, 1.0.0.0, 1.0.1.0, 1.0.1.1, 1.0.2.0, 1.0.2.1, 1.0.3.0, 1.0.3.1, 1.0.3.2, 1.0.4.0, 1.0.4.1, 1.0.4.2, 1.0.5.0, 1.0.5.1 |
|---|---|
| Change log | changelog.md |
| Dependencies | attoparsec (>=0.12 && <0.15), base (>=4 && <5), bytestring (>=0.9 && <0.13), bytestring-builder (>=0.10.4 && <0.11), case-insensitive (>=1.1 && <1.3), containers (>=0.3 && <1), directory (>=1 && <2), fail (>=4.9 && <4.10), filepath (>=1.1 && <2), hashable (>=1.2.0.6 && <2), HUnit (>=1.2 && <2), io-streams (>=1.3 && <1.6), lifted-base (>=0.1 && <0.3), monad-control (>=1.0 && <1.1), mtl (>=2.0 && <2.4), network (>=2.3 && <4), network-uri (>=2.5 && <2.7), old-locale (>=1 && <2), random (>=1 && <2), readable (>=0.1 && <0.4), regex-posix (>=0.95 && <1), semigroups (>=0.18 && <0.20), text (>=0.11 && <2.2), time (>=1.0 && <2), time-locale-compat (>=0.1 && <0.2), transformers (>=0.3 && <0.7), transformers-base (>=0.4 && <0.5), unix-compat (>=0.3 && <0.8), unordered-containers (>=0.1.4.3 && <0.3), vector (>=0.6 && <0.14) [details] |
| Tested with | ghc ==8.8.4, ghc ==8.10.7, ghc ==9.0.2, ghc ==9.2.8, ghc ==9.4.7, ghc ==9.6.3, ghc ==9.8.1 |
| License | BSD-3-Clause |
| Author | Snap Framework Authors (see CONTRIBUTORS) |
| Maintainer | snap@snapframework.com |
| Uploaded | by cydparser at 2023-02-10T21:32:56Z |
| Revised | Revision 7 made by AndreasAbel at 2026-01-07T09:38:06Z |
| Category | Web, Snap, IO-Streams |
| Home page | https://snapframework.com/ |
| Bug tracker | https://github.com/snapframework/snap-core/issues |
| Source repo | head: git clone https://github.com/snapframework/snap-core.git |
| Distributions | Arch:1.0.5.1, Debian:1.0.4.2, Fedora:1.0.5.1, FreeBSD:0.9.7.2, LTSHaskell:1.0.5.1, NixOS:1.0.5.1, Stackage:1.0.5.1 |
| Reverse Dependencies | 72 direct, 148 indirect [details] |
| Downloads | 131412 total (299 in the last 30 days) |
| Rating | 2.5 (votes: 5) [estimated by Bayesian average] |
| Your Rating |
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| Status | Docs uploaded by user Build status unknown [no reports yet] |
Readme for snap-core-1.0.5.1
[back to package description]Snap Framework Core
Snap is a web framework for Haskell. For more information about Snap, read the
README.SNAP.md or visit the Snap project website at
https://www.snapframework.com/.
Library contents
This is the snap-core library, which contains:
-
primitive types and functions for HTTP (requests, responses, cookies, post/query parameters, etc).
-
a "Snap" monad interface for programming web handlers, which allows:
-
stateful access to the HTTP request and response objects.
-
monadic failure (i.e. MonadPlus/Alternative instances) for declining to handle requests and chaining handlers together.
-
early termination of the computation if you know early what you want to return and want to prevent further monadic processing.
-
-
useful utilities for web handlers, like file serving and gzip/zlib compression.
Building snap-core
The snap-core library is built using Cabal and Hackage. Just run
cabal install
from the snap-core toplevel directory.
Building the Haddock Documentation
The haddock documentation can be built using the supplied haddock.sh shell
script:
./haddock.sh
The docs get put in dist/doc/html/.
Building the testsuite
Snap aims for 100% test coverage, and we're trying hard to stick to that.
To build the test suite, configure with --enable-tests:
$ cabal configure --enable-tests
$ cabal build
From here you can invoke the testsuite by running:
$ ./runTestsAndCoverage.sh
The testsuite generates an hpc test coverage report in dist/hpc.