snap-core

Snap: A Haskell Web Framework (core interfaces and types)

http://snapframework.com/

Version on this page:1.0.3.1
LTS Haskell 22.13:1.0.5.1@rev:3
Stackage Nightly 2024-03-14:1.0.5.1@rev:3
Latest on Hackage:1.0.5.1@rev:3

See all snapshots snap-core appears in

BSD-3-Clause licensed by Snap Framework Authors (see CONTRIBUTORS)
Maintained by [email protected]
This version can be pinned in stack with:snap-core-1.0.3.1@sha256:52c939702dc00f497c1f5d97113aee72136b169af268796c7692989b30bd53c9,9292

Snap Framework Core

Build Status

Snap is a web framework for Haskell. For more information about Snap, read the README.SNAP.md or visit the Snap project website at http://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.