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Code generator for haskell-servant framework

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This commit is contained in:
Masahiro Yamauchi 2016-01-31 20:20:19 +09:00
parent 3a2447634c
commit 4e3d94c005
35 changed files with 1795 additions and 0 deletions
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1
bin/all-petstore.sh
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@ -23,6 +23,7 @@ cd $APP_DIR
./bin/clojure-petstore.sh ./bin/clojure-petstore.sh
./bin/csharp-petstore.sh ./bin/csharp-petstore.sh
./bin/dynamic-html.sh ./bin/dynamic-html.sh
./bin/haskell-petstore.sh
./bin/html-petstore.sh ./bin/html-petstore.sh
./bin/java-petstore.sh ./bin/java-petstore.sh
./bin/java-petstore-jersey2.sh ./bin/java-petstore-jersey2.sh

31
bin/haskell-petstore.sh Executable file
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@ -0,0 +1,31 @@
#!/bin/sh
SCRIPT="$0"
while [ -h "$SCRIPT" ] ; do
ls=`ls -ld "$SCRIPT"`
link=`expr "$ls" : '.*-> \(.*\)$'`
if expr "$link" : '/.*' > /dev/null; then
SCRIPT="$link"
else
SCRIPT=`dirname "$SCRIPT"`/"$link"
fi
done
if [ ! -d "${APP_DIR}" ]; then
APP_DIR=`dirname "$SCRIPT"`/..
APP_DIR=`cd "${APP_DIR}"; pwd`
fi
executable="./modules/swagger-codegen-cli/target/swagger-codegen-cli.jar"
if [ ! -f "$executable" ]
then
mvn clean package
fi
# if you've executed sbt assembly previously it will use that instead.
export JAVA_OPTS="${JAVA_OPTS} -XX:MaxPermSize=256M -Xmx1024M -DloggerPath=conf/log4j.properties"
ags="$@ generate -t modules/swagger-codegen/src/main/resources/haskell -i modules/swagger-codegen/src/test/resources/2_0/petstore.json -l haskell -o samples/server/petstore/haskell"
java $JAVA_OPTS -jar $executable $ags

345
modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/HaskellServantCodegen.java Normal file
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@ -0,0 +1,345 @@
package io.swagger.codegen.languages;
import io.swagger.codegen.*;
import io.swagger.models.properties.*;
import io.swagger.models.Model;
import io.swagger.models.Operation;
import io.swagger.models.Swagger;
import java.util.*;
import java.io.File;
public class HaskellServantCodegen extends DefaultCodegen implements CodegenConfig {
// source folder where to write the files
protected String sourceFolder = "src";
protected String apiVersion = "0.0.1";
/**
* Configures the type of generator.
*
* @return the CodegenType for this generator
* @see io.swagger.codegen.CodegenType
*/
public CodegenType getTag() {
return CodegenType.SERVER;
}
/**
* Configures a friendly name for the generator. This will be used by the generator
* to select the library with the -l flag.
*
* @return the friendly name for the generator
*/
public String getName() {
return "haskell";
}
/**
* Returns human-friendly help for the generator. Provide the consumer with help
* tips, parameters here
*
* @return A string value for the help message
*/
public String getHelp() {
return "Generates a HaskellServantCodegen library.";
}
public HaskellServantCodegen() {
super();
// set the output folder here
outputFolder = "generated-code/HaskellServantCodegen";
/**
* Models. You can write model files using the modelTemplateFiles map.
* if you want to create one template for file, you can do so here.
* for multiple files for model, just put another entry in the `modelTemplateFiles` with
* a different extension
*/
modelTemplateFiles.put(
"model.mustache", // the template to use
".hs"); // the extension for each file to write
/**
* Api classes. You can write classes for each Api file with the apiTemplateFiles map.
* as with models, add multiple entries with different extensions for multiple files per
* class
*/
apiTemplateFiles.put(
"api.mustache", // the template to use
".hs"); // the extension for each file to write
/**
* Template Location. This is the location which templates will be read from. The generator
* will use the resource stream to attempt to read the templates.
*/
embeddedTemplateDir = templateDir = "haskell";
/**
* Api Package. Optional, if needed, this can be used in templates
*/
apiPackage = "Api";
/**
* Model Package. Optional, if needed, this can be used in templates
*/
modelPackage = "Model";
/**
* Reserved words. Override this with reserved words specific to your language
*/
// from https://wiki.haskell.org/Keywords
reservedWords = new HashSet<String>(
Arrays.asList(
"as", "case", "of",
"class", "data", // "data family", "data instance",
"default", "deriving", // "deriving instance",
"do",
"forall", "foreign", "hiding",
"id",
"if", "then", "else",
"import", "infix", "infixl", "infixr",
"instance", "let", "in",
"mdo", "module", "newtype",
"proc", "qualified", "rec",
"type", // "type family", "type instance",
"where"
)
);
/**
* Additional Properties. These values can be passed to the templates and
* are available in models, apis, and supporting files
*/
additionalProperties.put("apiVersion", apiVersion);
/**
* Supporting Files. You can write single files for the generator with the
* entire object tree available. If the input file has a suffix of `.mustache
* it will be processed by the template engine. Otherwise, it will be copied
*/
supportingFiles.add(new SupportingFile("README.mustache", "", "README.md"));
supportingFiles.add(new SupportingFile("stack.mustache", "", "stack.yaml"));
supportingFiles.add(new SupportingFile("haskell-servant-codegen.mustache", "", "haskell-servant-codegen.cabal"));
supportingFiles.add(new SupportingFile("Setup.mustache", "", "Setup.hs"));
supportingFiles.add(new SupportingFile("LICENSE", "", "LICENSE"));
supportingFiles.add(new SupportingFile("Apis.mustache", "lib", "Apis.hs"));
supportingFiles.add(new SupportingFile("Utils.mustache", "lib", "Utils.hs"));
supportingFiles.add(new SupportingFile("Client.mustache", "client", "Main.hs"));
supportingFiles.add(new SupportingFile("Server.mustache", "server", "Main.hs"));
/**
* Language Specific Primitives. These types will not trigger imports by
* the client generator
*/
languageSpecificPrimitives = new HashSet<String>(
Arrays.asList(
"Bool",
"String",
"Int",
"Integer",
"Float",
"Char",
"Double",
"List",
"FilePath"
)
);
typeMapping.clear();
// typeMapping.put("enum", "NSString");
typeMapping.put("array", "List");
typeMapping.put("set", "Set");
typeMapping.put("boolean", "Bool");
typeMapping.put("string", "String");
typeMapping.put("int", "Int");
typeMapping.put("long", "Integer");
typeMapping.put("float", "Float");
// typeMapping.put("byte", "Byte");
typeMapping.put("short", "Int");
typeMapping.put("char", "Char");
typeMapping.put("double", "Double");
typeMapping.put("DateTime", "Integer");
// typeMapping.put("object", "Map");
typeMapping.put("file", "FilePath");
importMapping.clear();
importMapping.put("Map", "qualified Data.Map as Map");
cliOptions.add(new CliOption(CodegenConstants.MODEL_PACKAGE, CodegenConstants.MODEL_PACKAGE_DESC));
cliOptions.add(new CliOption(CodegenConstants.API_PACKAGE, CodegenConstants.API_PACKAGE_DESC));
}
/**
* Escapes a reserved word as defined in the `reservedWords` array. Handle escaping
* those terms here. This logic is only called if a variable matches the reseved words
*
* @return the escaped term
*/
@Override
public String escapeReservedWord(String name) {
return name + "_";
}
/**
* Location to write model files. You can use the modelPackage() as defined when the class is
* instantiated
*/
public String modelFileFolder() {
return outputFolder + File.separatorChar + "lib" + File.separatorChar + modelPackage().replace('.', File.separatorChar);
}
/**
* Location to write api files. You can use the apiPackage() as defined when the class is
* instantiated
*/
@Override
public String apiFileFolder() {
return outputFolder + File.separatorChar + "lib" + File.separatorChar + apiPackage().replace('.', File.separatorChar);
}
/**
* Optional - type declaration. This is a String which is used by the templates to instantiate your
* types. There is typically special handling for different property types
*
* @return a string value used as the `dataType` field for model templates, `returnType` for api templates
*/
@Override
public String getTypeDeclaration(Property p) {
if(p instanceof ArrayProperty) {
ArrayProperty ap = (ArrayProperty) p;
Property inner = ap.getItems();
return "[" + getTypeDeclaration(inner) + "]";
}
else if (p instanceof MapProperty) {
MapProperty mp = (MapProperty) p;
Property inner = mp.getAdditionalProperties();
return "Map.Map String " + getTypeDeclaration(inner);
}
return super.getTypeDeclaration(p);
}
/**
* Optional - swagger type conversion. This is used to map swagger types in a `Property` into
* either language specific types via `typeMapping` or into complex models if there is not a mapping.
*
* @return a string value of the type or complex model for this property
* @see io.swagger.models.properties.Property
*/
@Override
public String getSwaggerType(Property p) {
String swaggerType = super.getSwaggerType(p);
String type = null;
if(typeMapping.containsKey(swaggerType)) {
type = typeMapping.get(swaggerType);
if(languageSpecificPrimitives.contains(type))
return toModelName(type);
}
else
type = swaggerType;
return toModelName(type);
}
private String capturePath(String path, List<CodegenParameter> pathParams) {
for (CodegenParameter p : pathParams) {
String pName = "{"+p.baseName+"}";
if (path.indexOf(pName) >= 0) {
path = path.replace(pName, "Capture " + "\""+p.baseName+"\" " + p.dataType);
}
}
return path;
}
private String queryPath(String path, List<CodegenParameter> queryParams) {
for (CodegenParameter p : queryParams) {
path += " :> QueryParam \"" + p.baseName + "\" " + p.dataType;
}
return path;
}
private String bodyPath(String path, List<CodegenParameter> bodyParams) {
for (CodegenParameter p : bodyParams) {
path += " :> ReqBody '[JSON] " + p.dataType;
}
return path;
}
private String formPath(String path, List<CodegenParameter> formParams) {
String names = "Form";
for (CodegenParameter p : formParams) {
if(p.dataType.equals("FilePath")){
// file data processing
}
names += p.baseName;
}
if(formParams.size() > 0){
path += " :> ReqBody '[FormUrlEncoded] " + names;
}
return path;
}
private String headerPath(String path, List<CodegenParameter> headerParams) {
for (CodegenParameter p : headerParams) {
path += " :> Header \"" + p.baseName + "\" " + p.dataType;
}
return path;
}
private String filterReturnType(String rt) {
if (rt == null || rt.equals("null")) {
return "()";
} else if (rt.indexOf(" ") >= 0) {
return "(" + rt + ")";
}
return rt;
}
private String addReturnPath(String path, String httpMethod, String returnType) {
return path + " :> " + upperCaseFirst(httpMethod) + " '[JSON] " + filterReturnType(returnType);
}
private String joinStrings(String sep, List<String> ss) {
StringBuilder sb = new StringBuilder();
for (String s : ss) {
if (sb.length() > 0) {
sb.append(sep);
}
sb.append(s);
}
return sb.toString();
}
private String replacePathSplitter(String path) {
String[] ps = path.replaceFirst("/", "").split("/", 0);
List<String> rs = new ArrayList<String>();
for (String p : ps) {
if (p.indexOf("{") < 0) {
rs.add("\"" + p + "\"");
} else {
rs.add(p);
}
}
return joinStrings(" :> ", rs);
}
private String upperCaseFirst(String str) {
char[] array = str.toLowerCase().toCharArray();
array[0] = Character.toUpperCase(array[0]);
return new String(array);
}
private String parseScheme(String basePath) {
return "Http";
}
@Override
public CodegenOperation fromOperation(String resourcePath, String httpMethod, Operation operation, Map<String, Model> definitions, Swagger swagger){
CodegenOperation op = super.fromOperation(resourcePath, httpMethod, operation, definitions, swagger);
String path = op.path;
op.nickname = addReturnPath(headerPath(formPath(bodyPath(queryPath(capturePath(replacePathSplitter(path), op.pathParams), op.queryParams), op.bodyParams), op.formParams), op.headerParams), op.httpMethod, op.returnType);
return op;
}
}

1
modules/swagger-codegen/src/main/resources/META-INF/services/io.swagger.codegen.CodegenConfig
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@ -33,3 +33,4 @@ io.swagger.codegen.languages.TypeScriptNodeClientCodegen
io.swagger.codegen.languages.AkkaScalaClientCodegen io.swagger.codegen.languages.AkkaScalaClientCodegen
io.swagger.codegen.languages.CsharpDotNet2ClientCodegen io.swagger.codegen.languages.CsharpDotNet2ClientCodegen
io.swagger.codegen.languages.ClojureClientCodegen io.swagger.codegen.languages.ClojureClientCodegen
io.swagger.codegen.languages.HaskellServantCodegen

26
modules/swagger-codegen/src/main/resources/haskell/Apis.mustache Normal file
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@ -0,0 +1,26 @@
{-# LANGUAGE DataKinds #-}
{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE TypeOperators #-}
{-# LANGUAGE FlexibleInstances #-}
module Apis (
api
, API
) where
{{#apiInfo}}
{{#apis}}
import {{package}}.{{classname}} ({{classname}})
{{/apis}}
{{/apiInfo}}
import Data.Proxy
import Servant.API
import Test.QuickCheck
import qualified Data.Map as Map
import Utils
type API = {{#apiInfo}}{{#apis}}{{classname}}{{#hasMore}} :<|> {{/hasMore}}{{/apis}}{{/apiInfo}}
api :: Proxy API
api = Proxy

35
modules/swagger-codegen/src/main/resources/haskell/Client.mustache Normal file
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@ -0,0 +1,35 @@
{-# LANGUAGE DataKinds #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE TypeOperators #-}
module Main where
import Control.Monad (void)
import Control.Monad.Trans.Either
import Control.Monad.IO.Class
import Servant.API
import Servant.Client
import Data.List.Split (splitOn)
import Network.URI (URI (..), URIAuth (..), parseURI)
import Data.Maybe (fromMaybe)
import Test.QuickCheck
import Control.Monad
{{#models}}
import {{importPath}}
{{/models}}
{{#apiInfo}}
{{#apis}}
import {{package}}.{{classname}}
{{/apis}}
{{/apiInfo}}
-- userClient :: IO ()
-- userClient = do
-- users <- sample' (arbitrary :: Gen String)
-- let user = last users
-- void . runEitherT $ do
-- getUserByName user >>= (liftIO . putStrLn . show)
main :: IO ()
main = putStrLn "Hello Server!"

202
modules/swagger-codegen/src/main/resources/haskell/LICENSE Normal file
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@ -0,0 +1,202 @@
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7
modules/swagger-codegen/src/main/resources/haskell/README.mustache Normal file
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@ -0,0 +1,7 @@
# Generated Servant Codes
## How to use
0. Install haskell-stack
1. stack build
2. stack exec client

13
modules/swagger-codegen/src/main/resources/haskell/Server.mustache Normal file
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@ -0,0 +1,13 @@
{-# LANGUAGE DataKinds #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE TypeOperators #-}
module Main where
import Apis
import Servant
import Servant.Mock
import qualified Network.Wai.Handler.Warp as Warp
main :: IO ()
main = Warp.run 8080 $ serve api (mock api)

2
modules/swagger-codegen/src/main/resources/haskell/Setup.mustache Normal file
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@ -0,0 +1,2 @@
import Distribution.Simple
main = defaultMain

27
modules/swagger-codegen/src/main/resources/haskell/Utils.mustache Normal file
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@ -0,0 +1,27 @@
{-# LANGUAGE DataKinds #-}
{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE TypeOperators #-}
{-# LANGUAGE FlexibleInstances #-}
module Utils where
import GHC.Generics
import Servant.API
import Data.List (intercalate)
import Data.List.Split (splitOn)
import qualified Data.Map as Map
import qualified Data.Text as T
import Test.QuickCheck
instance FromText [String] where
fromText = Just . splitOn "," . T.unpack
instance ToText [String] where
toText = T.pack . intercalate ","
lkp inputs l = case lookup l inputs of
Nothing -> Left $ "label " ++ T.unpack l ++ " not found"
Just v -> Right $ read (T.unpack v)
instance (Ord k, Arbitrary k, Arbitrary v) => Arbitrary (Map.Map k v) where
arbitrary = Map.fromList <$> arbitrary

82
modules/swagger-codegen/src/main/resources/haskell/api.mustache Normal file
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@ -0,0 +1,82 @@
{-# LANGUAGE DataKinds #-}
{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE TypeOperators #-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE OverloadedStrings #-}
{{#operations}}
module {{package}}.{{classname}} (
{{#operation}}{{operationId}}{{#hasMore}}
, {{/hasMore}}{{/operation}}
, proxy{{classname}}
, {{classname}}
) where
{{/operations}}
import GHC.Generics
import Data.Proxy
import Servant.API
import Servant.Client
import Network.URI (URI (..), URIAuth (..), parseURI)
import Data.Maybe (fromMaybe)
import Servant.Common.Text
import Data.List (intercalate)
import qualified Data.Text as T
import Utils
import Test.QuickCheck
{{#imports}}import {{import}}
{{/imports}}
{{#operations}}
{{#operation}}
{{#hasFormParams}}
data Form{{#formParams}}{{baseName}}{{/formParams}} = Form{{#formParams}}{{baseName}}{{/formParams}}
{ {{#formParams}}{{baseName}} :: {{dataType}}{{#hasMore}}
, {{/hasMore}}{{/formParams}}
} deriving (Show, Eq, Generic)
instance FromFormUrlEncoded Form{{#formParams}}{{baseName}}{{/formParams}} where
fromFormUrlEncoded inputs = Form{{#formParams}}{{baseName}}{{/formParams}} <$> {{#formParams}} lkp inputs "{{baseName}}"{{#hasMore}} <*> {{/hasMore}}{{/formParams}}
instance ToFormUrlEncoded Form{{#formParams}}{{baseName}}{{/formParams}} where
toFormUrlEncoded x = [({{#formParams}}(T.pack $ show $ {{package}}.{{classname}}.{{baseName}} x){{#hasMore}}, {{/hasMore}}{{/formParams}})]
instance Arbitrary Form{{#formParams}}{{baseName}}{{/formParams}} where
arbitrary = Form{{#formParams}}{{baseName}}{{/formParams}} <$> {{#formParams}}arbitrary{{#hasMore}} <*> {{/hasMore}}{{/formParams}}
{{/hasFormParams}}
{{/operation}}
{{/operations}}
{{#operations}}
type {{classname}} = {{#operation}}{{& nickname}} -- {{operationId}}{{#hasMore}}
:<|> {{/hasMore}}{{/operation}}
{{/operations}}
proxy{{classname}} :: Proxy {{classname}}
proxy{{classname}} = Proxy
{{#operations}}
serverPath :: String
serverPath = "{{basePath}}"
parseHostPort :: String -> (String, Int)
parseHostPort path = (host,port)
where
authority = case parseURI path of
Just x -> uriAuthority x
_ -> Nothing
(host, port) = case authority of
Just y -> (uriRegName y, (getPort . uriPort) y)
_ -> ("localhost", 8080)
getPort p = case (length p) of
0 -> 80
_ -> (read . drop 1) p
(host, port) = parseHostPort serverPath
{{#operation}}
{{operationId}}{{#hasMore}}
:<|> {{/hasMore}}{{/operation}}
= client proxy{{classname}} $ BaseUrl Http host port
{{/operations}}

66
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name: haskell-servant-codegen
version: 0.1.0.0
synopsis: Swagger-codegen example for Haskell servant
description: Please see README.md
homepage: http://github.com/algas/haskell-servant-codegen#readme
license: Apache-2.0
license-file: LICENSE
author: Masahiro Yamauchi
maintainer: sgt.yamauchi@gmail.com
copyright: 2015- Masahiro Yamauchi
category: Web
build-type: Simple
-- extra-source-files:
cabal-version: >=1.10
library
hs-source-dirs: lib
exposed-modules: Utils{{#models}}{{#model}}
, {{importPath}}{{/model}}{{/models}}
{{#apiInfo}}
{{#apis}}
, {{package}}.{{classname}}
{{/apis}}
{{/apiInfo}}
, Apis
ghc-options: -Wall
build-depends: base
, aeson
, text
, split
, containers
, network-uri
, QuickCheck
, servant
, servant-client
default-language: Haskell2010
executable client
hs-source-dirs: client
main-is: Main.hs
ghc-options: -threaded -rtsopts -with-rtsopts=-N
build-depends: base
, either
, transformers
, split
, network-uri
, QuickCheck
, servant
, servant-client
, haskell-servant-codegen
default-language: Haskell2010
executable server
hs-source-dirs: server
main-is: Main.hs
ghc-options: -threaded -rtsopts -with-rtsopts=-N
build-depends: base
, warp
, servant-server
, servant-mock
, haskell-servant-codegen
default-language: Haskell2010
source-repository head
type: git
location: https://github.com/algas/haskell-servant-codegen

34
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{-# LANGUAGE DataKinds #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE TypeOperators #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE GeneralizedNewtypeDeriving #-}
{{#models}}
{{#model}}
module {{package}}.{{classname}}
( {{classname}} (..)
) where
{{/model}}
{{/models}}
import Data.Aeson
import GHC.Generics
import Test.QuickCheck
{{#imports}}import {{import}}
{{/imports}}
{{#models}}
{{#model}}
data {{classname}} = {{classname}}
{ {{#vars}}{{& name}} :: {{datatype}}{{#hasMore}}
, {{/hasMore}}{{/vars}}
} deriving (Show, Eq, Generic)
instance FromJSON {{classname}}
instance ToJSON {{classname}}
instance Arbitrary {{classname}} where
arbitrary = {{classname}} <$> {{#vars}}arbitrary{{#hasMore}} <*> {{/hasMore}}{{/vars}}
{{/model}}
{{/models}}

33
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# For more information, see: https://github.com/commercialhaskell/stack/blob/release/doc/yaml_configuration.md
# Specifies the GHC version and set of packages available (e.g., lts-3.5, nightly-2015-09-21, ghc-7.10.2)
resolver: lts-3.17
# Local packages, usually specified by relative directory name
packages:
- '.'
# Packages to be pulled from upstream that are not in the resolver (e.g., acme-missiles-0.3)
extra-deps:
- servant-mock-0.4.4.5
# Override default flag values for local packages and extra-deps
flags: {}
# Extra package databases containing global packages
extra-package-dbs: []
# Control whether we use the GHC we find on the path
# system-ghc: true
# Require a specific version of stack, using version ranges
# require-stack-version: -any # Default
# require-stack-version: >= 0.1.10.0
# Override the architecture used by stack, especially useful on Windows
# arch: i386
# arch: x86_64
# Extra directories used by stack for building
# extra-include-dirs: [/path/to/dir]
# extra-lib-dirs: [/path/to/dir]

36
modules/swagger-codegen/src/test/java/io/swagger/codegen/haskell/HaskellServantOptionsTest.java Normal file
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package io.swagger.codegen.haskell;
import io.swagger.codegen.AbstractOptionsTest;
import io.swagger.codegen.CodegenConfig;
import io.swagger.codegen.languages.HaskellServantCodegen;
import io.swagger.codegen.options.HaskellServantOptionsProvider;
import mockit.Expectations;
import mockit.Tested;
public class HaskellServantOptionsTest extends AbstractOptionsTest {
@Tested
private HaskellServantCodegen clientCodegen;
public HaskellServantOptionsTest() {
super(new HaskellServantOptionsProvider());
}
@Override
protected CodegenConfig getCodegenConfig() {
return clientCodegen;
}
@Override
protected void setExpectations() {
new Expectations(clientCodegen) {{
clientCodegen.setModelPackage(HaskellServantOptionsProvider.MODEL_PACKAGE_VALUE);
times = 1;
clientCodegen.setApiPackage(HaskellServantOptionsProvider.API_PACKAGE_VALUE);
times = 1;
clientCodegen.setSortParamsByRequiredFlag(Boolean.valueOf(HaskellServantOptionsProvider.SORT_PARAMS_VALUE));
times = 1;
}};
}
}

20
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package io.swagger.codegen.haskell;
import io.swagger.codegen.CodegenModel;
import io.swagger.codegen.CodegenOperation;
import io.swagger.codegen.DefaultCodegen;
import io.swagger.codegen.languages.HaskellServantCodegen;
import io.swagger.models.Operation;
import io.swagger.models.Swagger;
import io.swagger.parser.SwaggerParser;
import org.testng.Assert;
import org.testng.annotations.Test;
public class HaskellTest {
@Test(description = "convert a haskell model with dots")
public void modelTest() {
Assert.assertEquals(true, true);
}
}

34
modules/swagger-codegen/src/test/java/io/swagger/codegen/options/HaskellServantOptionsProvider.java Normal file
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package io.swagger.codegen.options;
import io.swagger.codegen.CodegenConstants;
import com.google.common.collect.ImmutableMap;
import java.util.Map;
public class HaskellServantOptionsProvider implements OptionsProvider {
public static final String MODEL_PACKAGE_VALUE = "Model";
public static final String API_PACKAGE_VALUE = "Api";
public static final String SORT_PARAMS_VALUE = "false";
public static final String ENSURE_UNIQUE_PARAMS_VALUE = "true";
@Override
public String getLanguage() {
return "haskell";
}
@Override
public Map<String, String> createOptions() {
ImmutableMap.Builder<String, String> builder = new ImmutableMap.Builder<String, String>();
return builder.put(CodegenConstants.MODEL_PACKAGE, MODEL_PACKAGE_VALUE)
.put(CodegenConstants.API_PACKAGE, API_PACKAGE_VALUE)
.put(CodegenConstants.SORT_PARAMS_BY_REQUIRED_FLAG, SORT_PARAMS_VALUE)
.put(CodegenConstants.ENSURE_UNIQUE_PARAMS, ENSURE_UNIQUE_PARAMS_VALUE)
.build();
}
@Override
public boolean isServer() {
return true;
}
}

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on Your own behalf and on Your sole responsibility, not on behalf
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END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
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Copyright 2015 Masahiro Yamauchi
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
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limitations under the License.

7
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# Generated Servant Codes
## How to use
0. Install haskell-stack
1. stack build
2. stack exec client

2
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import Distribution.Simple
main = defaultMain

35
samples/server/petstore/haskell/client/Main.hs Normal file
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{-# LANGUAGE DataKinds #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE TypeOperators #-}
module Main where
import Control.Monad (void)
import Control.Monad.Trans.Either
import Control.Monad.IO.Class
import Servant.API
import Servant.Client
import Data.List.Split (splitOn)
import Network.URI (URI (..), URIAuth (..), parseURI)
import Data.Maybe (fromMaybe)
import Test.QuickCheck
import Control.Monad
import Model.User
import Model.Category
import Model.Pet
import Model.Tag
import Model.Order
import Api.UserApi
import Api.StoreApi
import Api.PetApi
-- userClient :: IO ()
-- userClient = do
-- users <- sample' (arbitrary :: Gen String)
-- let user = last users
-- void . runEitherT $ do
-- getUserByName user >>= (liftIO . putStrLn . show)
main :: IO ()
main = putStrLn "Hello Server!"

68
samples/server/petstore/haskell/haskell-servant-codegen.cabal Normal file
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name: haskell-servant-codegen
version: 0.1.0.0
synopsis: Swagger-codegen example for Haskell servant
description: Please see README.md
homepage: http://github.com/algas/haskell-servant-codegen#readme
license: Apache-2.0
license-file: LICENSE
author: Masahiro Yamauchi
maintainer: sgt.yamauchi@gmail.com
copyright: 2015- Masahiro Yamauchi
category: Web
build-type: Simple
-- extra-source-files:
cabal-version: >=1.10
library
hs-source-dirs: lib
exposed-modules: Utils
, Model.User
, Model.Category
, Model.Pet
, Model.Tag
, Model.Order
, Api.UserApi
, Api.StoreApi
, Api.PetApi
, Apis
ghc-options: -Wall
build-depends: base
, aeson
, text
, split
, containers
, network-uri
, QuickCheck
, servant
, servant-client
default-language: Haskell2010
executable client
hs-source-dirs: client
main-is: Main.hs
ghc-options: -threaded -rtsopts -with-rtsopts=-N
build-depends: base
, either
, transformers
, split
, network-uri
, QuickCheck
, servant
, servant-client
, haskell-servant-codegen
default-language: Haskell2010
executable server
hs-source-dirs: server
main-is: Main.hs
ghc-options: -threaded -rtsopts -with-rtsopts=-N
build-depends: base
, warp
, servant-server
, servant-mock
, haskell-servant-codegen
default-language: Haskell2010
source-repository head
type: git
location: https://github.com/algas/haskell-servant-codegen

104
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{-# LANGUAGE DataKinds #-}
{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE TypeOperators #-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE OverloadedStrings #-}
module Api.PetApi (
updatePet
, addPet
, findPetsByStatus
, findPetsByTags
, getPetById
, updatePetWithForm
, deletePet
, uploadFile
, proxyPetApi
, PetApi
) where
import GHC.Generics
import Data.Proxy
import Servant.API
import Servant.Client
import Network.URI (URI (..), URIAuth (..), parseURI)
import Data.Maybe (fromMaybe)
import Servant.Common.Text
import Data.List (intercalate)
import qualified Data.Text as T
import Utils
import Test.QuickCheck
import Model.Pet
data Formnamestatus = Formnamestatus
{ name :: String
, status :: String
} deriving (Show, Eq, Generic)
instance FromFormUrlEncoded Formnamestatus where
fromFormUrlEncoded inputs = Formnamestatus <$> lkp inputs "name" <*> lkp inputs "status"
instance ToFormUrlEncoded Formnamestatus where
toFormUrlEncoded x = [((T.pack $ show $ Api.PetApi.name x), (T.pack $ show $ Api.PetApi.status x))]
instance Arbitrary Formnamestatus where
arbitrary = Formnamestatus <$> arbitrary <*> arbitrary
data FormadditionalMetadatafile = FormadditionalMetadatafile
{ additionalMetadata :: String
, file :: FilePath
} deriving (Show, Eq, Generic)
instance FromFormUrlEncoded FormadditionalMetadatafile where
fromFormUrlEncoded inputs = FormadditionalMetadatafile <$> lkp inputs "additionalMetadata" <*> lkp inputs "file"
instance ToFormUrlEncoded FormadditionalMetadatafile where
toFormUrlEncoded x = [((T.pack $ show $ Api.PetApi.additionalMetadata x), (T.pack $ show $ Api.PetApi.file x))]
instance Arbitrary FormadditionalMetadatafile where
arbitrary = FormadditionalMetadatafile <$> arbitrary <*> arbitrary
type PetApi = "pet" :> ReqBody '[JSON] Pet :> Put '[JSON] () -- updatePet
:<|> "pet" :> ReqBody '[JSON] Pet :> Post '[JSON] () -- addPet
:<|> "pet" :> "findByStatus" :> QueryParam "status" [String] :> Get '[JSON] [Pet] -- findPetsByStatus
:<|> "pet" :> "findByTags" :> QueryParam "tags" [String] :> Get '[JSON] [Pet] -- findPetsByTags
:<|> "pet" :> Capture "petId" Integer :> Get '[JSON] Pet -- getPetById
:<|> "pet" :> Capture "petId" String :> ReqBody '[FormUrlEncoded] Formnamestatus :> Post '[JSON] () -- updatePetWithForm
:<|> "pet" :> Capture "petId" Integer :> Header "api_key" String :> Delete '[JSON] () -- deletePet
:<|> "pet" :> Capture "petId" Integer :> "uploadImage" :> ReqBody '[FormUrlEncoded] FormadditionalMetadatafile :> Post '[JSON] () -- uploadFile
proxyPetApi :: Proxy PetApi
proxyPetApi = Proxy
serverPath :: String
serverPath = "http://petstore.swagger.io/v2"
parseHostPort :: String -> (String, Int)
parseHostPort path = (host,port)
where
authority = case parseURI path of
Just x -> uriAuthority x
_ -> Nothing
(host, port) = case authority of
Just y -> (uriRegName y, (getPort . uriPort) y)
_ -> ("localhost", 8080)
getPort p = case (length p) of
0 -> 80
_ -> (read . drop 1) p
(host, port) = parseHostPort serverPath
updatePet
:<|> addPet
:<|> findPetsByStatus
:<|> findPetsByTags
:<|> getPetById
:<|> updatePetWithForm
:<|> deletePet
:<|> uploadFile
= client proxyPetApi $ BaseUrl Http host port

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{-# LANGUAGE DataKinds #-}
{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE TypeOperators #-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE OverloadedStrings #-}
module Api.StoreApi (
getInventory
, placeOrder
, getOrderById
, deleteOrder
, proxyStoreApi
, StoreApi
) where
import GHC.Generics
import Data.Proxy
import Servant.API
import Servant.Client
import Network.URI (URI (..), URIAuth (..), parseURI)
import Data.Maybe (fromMaybe)
import Servant.Common.Text
import Data.List (intercalate)
import qualified Data.Text as T
import Utils
import Test.QuickCheck
import qualified Data.Map as Map
import Model.Order
type StoreApi = "store" :> "inventory" :> Get '[JSON] (Map.Map String Integer) -- getInventory
:<|> "store" :> "order" :> ReqBody '[JSON] Order :> Post '[JSON] Order -- placeOrder
:<|> "store" :> "order" :> Capture "orderId" String :> Get '[JSON] Order -- getOrderById
:<|> "store" :> "order" :> Capture "orderId" String :> Delete '[JSON] () -- deleteOrder
proxyStoreApi :: Proxy StoreApi
proxyStoreApi = Proxy
serverPath :: String
serverPath = "http://petstore.swagger.io/v2"
parseHostPort :: String -> (String, Int)
parseHostPort path = (host,port)
where
authority = case parseURI path of
Just x -> uriAuthority x
_ -> Nothing
(host, port) = case authority of
Just y -> (uriRegName y, (getPort . uriPort) y)
_ -> ("localhost", 8080)
getPort p = case (length p) of
0 -> 80
_ -> (read . drop 1) p
(host, port) = parseHostPort serverPath
getInventory
:<|> placeOrder
:<|> getOrderById
:<|> deleteOrder
= client proxyStoreApi $ BaseUrl Http host port

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{-# LANGUAGE DataKinds #-}
{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE TypeOperators #-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE OverloadedStrings #-}
module Api.UserApi (
createUser
, createUsersWithArrayInput
, createUsersWithListInput
, loginUser
, logoutUser
, getUserByName
, updateUser
, deleteUser
, proxyUserApi
, UserApi
) where
import GHC.Generics
import Data.Proxy
import Servant.API
import Servant.Client
import Network.URI (URI (..), URIAuth (..), parseURI)
import Data.Maybe (fromMaybe)
import Servant.Common.Text
import Data.List (intercalate)
import qualified Data.Text as T
import Utils
import Test.QuickCheck
import Model.User
type UserApi = "user" :> ReqBody '[JSON] User :> Post '[JSON] () -- createUser
:<|> "user" :> "createWithArray" :> ReqBody '[JSON] [User] :> Post '[JSON] () -- createUsersWithArrayInput
:<|> "user" :> "createWithList" :> ReqBody '[JSON] [User] :> Post '[JSON] () -- createUsersWithListInput
:<|> "user" :> "login" :> QueryParam "username" String :> QueryParam "password" String :> Get '[JSON] String -- loginUser
:<|> "user" :> "logout" :> Get '[JSON] () -- logoutUser
:<|> "user" :> Capture "username" String :> Get '[JSON] User -- getUserByName
:<|> "user" :> Capture "username" String :> ReqBody '[JSON] User :> Put '[JSON] () -- updateUser
:<|> "user" :> Capture "username" String :> Delete '[JSON] () -- deleteUser
proxyUserApi :: Proxy UserApi
proxyUserApi = Proxy
serverPath :: String
serverPath = "http://petstore.swagger.io/v2"
parseHostPort :: String -> (String, Int)
parseHostPort path = (host,port)
where
authority = case parseURI path of
Just x -> uriAuthority x
_ -> Nothing
(host, port) = case authority of
Just y -> (uriRegName y, (getPort . uriPort) y)
_ -> ("localhost", 8080)
getPort p = case (length p) of
0 -> 80
_ -> (read . drop 1) p
(host, port) = parseHostPort serverPath
createUser
:<|> createUsersWithArrayInput
:<|> createUsersWithListInput
:<|> loginUser
:<|> logoutUser
:<|> getUserByName
:<|> updateUser
:<|> deleteUser
= client proxyUserApi $ BaseUrl Http host port

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{-# LANGUAGE DataKinds #-}
{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE TypeOperators #-}
{-# LANGUAGE FlexibleInstances #-}
module Apis (
api
, API
) where
import Api.UserApi (UserApi)
import Api.StoreApi (StoreApi)
import Api.PetApi (PetApi)
import Data.Proxy
import Servant.API
import Test.QuickCheck
import qualified Data.Map as Map
import Utils
type API = UserApi :<|> StoreApi :<|> PetApi
api :: Proxy API
api = Proxy

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samples/server/petstore/haskell/lib/Model/Category.hs Normal file
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{-# LANGUAGE DataKinds #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE TypeOperators #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE GeneralizedNewtypeDeriving #-}
module Model.Category
( Category (..)
) where
import Data.Aeson
import GHC.Generics
import Test.QuickCheck
data Category = Category
{ id_ :: Integer
, name :: String
} deriving (Show, Eq, Generic)
instance FromJSON Category
instance ToJSON Category
instance Arbitrary Category where
arbitrary = Category <$> arbitrary <*> arbitrary

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{-# LANGUAGE DataKinds #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE TypeOperators #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE GeneralizedNewtypeDeriving #-}
module Model.Order
( Order (..)
) where
import Data.Aeson
import GHC.Generics
import Test.QuickCheck
data Order = Order
{ id_ :: Integer
, petId :: Integer
, quantity :: Integer
, shipDate :: Integer
, status :: String
, complete :: Bool
} deriving (Show, Eq, Generic)
instance FromJSON Order
instance ToJSON Order
instance Arbitrary Order where
arbitrary = Order <$> arbitrary <*> arbitrary <*> arbitrary <*> arbitrary <*> arbitrary <*> arbitrary

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{-# LANGUAGE DataKinds #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE TypeOperators #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE GeneralizedNewtypeDeriving #-}
module Model.Pet
( Pet (..)
) where
import Data.Aeson
import GHC.Generics
import Test.QuickCheck
import Model.Category
import Model.Tag
data Pet = Pet
{ id_ :: Integer
, category :: Category
, name :: String
, photoUrls :: [String]
, tags :: [Tag]
, status :: String
} deriving (Show, Eq, Generic)
instance FromJSON Pet
instance ToJSON Pet
instance Arbitrary Pet where
arbitrary = Pet <$> arbitrary <*> arbitrary <*> arbitrary <*> arbitrary <*> arbitrary <*> arbitrary

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{-# LANGUAGE DataKinds #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE TypeOperators #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE GeneralizedNewtypeDeriving #-}
module Model.Tag
( Tag (..)
) where
import Data.Aeson
import GHC.Generics
import Test.QuickCheck
data Tag = Tag
{ id_ :: Integer
, name :: String
} deriving (Show, Eq, Generic)
instance FromJSON Tag
instance ToJSON Tag
instance Arbitrary Tag where
arbitrary = Tag <$> arbitrary <*> arbitrary

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{-# LANGUAGE DataKinds #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE TypeOperators #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE GeneralizedNewtypeDeriving #-}
module Model.User
( User (..)
) where
import Data.Aeson
import GHC.Generics
import Test.QuickCheck
data User = User
{ id_ :: Integer
, username :: String
, firstName :: String
, lastName :: String
, email :: String
, password :: String
, phone :: String
, userStatus :: Integer
} deriving (Show, Eq, Generic)
instance FromJSON User
instance ToJSON User
instance Arbitrary User where
arbitrary = User <$> arbitrary <*> arbitrary <*> arbitrary <*> arbitrary <*> arbitrary <*> arbitrary <*> arbitrary <*> arbitrary

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{-# LANGUAGE DataKinds #-}
{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE TypeOperators #-}
{-# LANGUAGE FlexibleInstances #-}
module Utils where
import GHC.Generics
import Servant.API
import Data.List (intercalate)
import Data.List.Split (splitOn)
import qualified Data.Map as Map
import qualified Data.Text as T
import Test.QuickCheck
instance FromText [String] where
fromText = Just . splitOn "," . T.unpack
instance ToText [String] where
toText = T.pack . intercalate ","
lkp inputs l = case lookup l inputs of
Nothing -> Left $ "label " ++ T.unpack l ++ " not found"
Just v -> Right $ read (T.unpack v)
instance (Ord k, Arbitrary k, Arbitrary v) => Arbitrary (Map.Map k v) where
arbitrary = Map.fromList <$> arbitrary

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{-# LANGUAGE DataKinds #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE TypeOperators #-}
module Main where
import Apis
import Servant
import Servant.Mock
import qualified Network.Wai.Handler.Warp as Warp
main :: IO ()
main = Warp.run 8080 $ serve api (mock api)

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# For more information, see: https://github.com/commercialhaskell/stack/blob/release/doc/yaml_configuration.md
# Specifies the GHC version and set of packages available (e.g., lts-3.5, nightly-2015-09-21, ghc-7.10.2)
resolver: lts-3.17
# Local packages, usually specified by relative directory name
packages:
- '.'
# Packages to be pulled from upstream that are not in the resolver (e.g., acme-missiles-0.3)
extra-deps:
- servant-mock-0.4.4.5
# Override default flag values for local packages and extra-deps
flags: {}
# Extra package databases containing global packages
extra-package-dbs: []
# Control whether we use the GHC we find on the path
# system-ghc: true
# Require a specific version of stack, using version ranges
# require-stack-version: -any # Default
# require-stack-version: >= 0.1.10.0
# Override the architecture used by stack, especially useful on Windows
# arch: i386
# arch: x86_64
# Extra directories used by stack for building
# extra-include-dirs: [/path/to/dir]
# extra-lib-dirs: [/path/to/dir]