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[Scala][Client]Add Http4s scala3 client codegen #19658

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[Scala][Client]Add Http4s scala3 client codegen #19658

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94b05e5
fix attemp
Sep 6, 2024
d3b4014
use java.time.Instant
Sep 9, 2024
33ba493
fix client gen
Sep 9, 2024
3dba0af
Tweeks
Sep 10, 2024
44d08f8
header and form
Sep 10, 2024
b814269
use scala 3 enum
Sep 11, 2024
9f94a38
more tweeks
Sep 12, 2024
4877254
add additional properties; add auth
Sep 12, 2024
a598f68
add form media type
Sep 16, 2024
9ab85ff
add modelsOnly
Sep 17, 2024
12ac0ca
Merge branch 'OpenAPITools:master' into http4s-scala3-client
JennyLeahy Sep 20, 2024
9cd4b24
add unit tests
Sep 20, 2024
a75eb52
add petstore samples
Sep 23, 2024
f5e3791
add doc
Sep 23, 2024
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6 changes: 6 additions & 0 deletions bin/configs/scala-http4s.yaml
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generatorName: scala-http4s
outputDir: samples/client/petstore/scala-http4s
inputSpec: modules/openapi-generator/src/test/resources/3_0/scala-http4s/petstore.yaml
templateDir: modules/openapi-generator/src/main/resources/scala-http4s
additionalProperties:
artifactId: scala-http4s-client
272 changes: 272 additions & 0 deletions docs/generators/scala-http4s.md
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---
title: Documentation for the scala-http4s Generator
---

## METADATA

| Property | Value | Notes |
| -------- | ----- | ----- |
| generator name | scala-http4s | pass this to the generate command after -g |
| generator stability | STABLE | |
| generator type | CLIENT | |
| generator language | Scala | |
| generator default templating engine | mustache | |
| helpTxt | Generates a scala-http4s client. | |

## CONFIG OPTIONS
These options may be applied as additional-properties (cli) or configOptions (plugins). Refer to [configuration docs](https://openapi-generator.tech/docs/configuration) for more details.

| Option | Description | Values | Default |
|------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| ------ | ------- |
| allowUnicodeIdentifiers | boolean, toggles whether unicode identifiers are allowed in names or not, default is false | |false|
| packageName | main package for the generated classes, parent package for api package and model package | |null|
| projectName | project name / artifactId for for the generated project | |null|
| excludeSbt | exclude sbt from generation | |null|
| excludeApi | exclude apis from generation | |null|
| prependFormOrBodyParameters | Add form or body parameters to the beginning of the parameter list. | |false|
| disallowAdditionalPropertiesIfNotPresent | If false, the 'additionalProperties' implementation (set to true by default) is compliant with the OAS and JSON schema specifications. If true (default), keep the old (incorrect) behaviour that 'additionalProperties' is set to false by default. |<dl><dt>**false**</dt><dd>The 'additionalProperties' implementation is compliant with the OAS and JSON schema specifications.</dd><dt>**true**</dt><dd>Keep the old (incorrect) behaviour that 'additionalProperties' is set to false by default.</dd></dl>|true|
| ensureUniqueParams | Whether to ensure parameter names are unique in an operation (rename parameters that are not). | |true|
| legacyDiscriminatorBehavior | Set to false for generators with better support for discriminators. (Python, Java, Go, PowerShell, C# have this enabled by default). |<dl><dt>**true**</dt><dd>The mapping in the discriminator includes descendent schemas that allOf inherit from self and the discriminator mapping schemas in the OAS document.</dd><dt>**false**</dt><dd>The mapping in the discriminator includes any descendent schemas that allOf inherit from self, any oneOf schemas, any anyOf schemas, any x-discriminator-values, and the discriminator mapping schemas in the OAS document AND Codegen validates that oneOf and anyOf schemas contain the required discriminator and throws an error if the discriminator is missing.</dd></dl>|true|
| sortModelPropertiesByRequiredFlag | Sort model properties to place required parameters before optional parameters. | |true|
| sortParamsByRequiredFlag | Sort method arguments to place required parameters before optional parameters. | |true|
| sourceFolder | source folder for generated code | |null|

## IMPORT MAPPING

| Type/Alias | Imports |
| ---------- | ------- |
|ArrayBuffer|scala.collection.mutable.ArrayBuffer|
|Date|java.util.Date|
|File|java.io.File|
|HashMap|scala.collection.immutable.HashMap|
|Instant|java.time.Instant|
|Json|io.circe.Json|
|LocalDate|java.time.LocalDate|
|LocalDateTime|java.time.LocalDateTime|
|LocalTime|java.time.LocalTime|
|Map|scala.collection.immutable.Map|
|OffsetDateTime|java.time.OffsetDateTime|
|Seq|scala.collection.immutable.Seq|
|Timestamp|java.sql.Timestamp|
|URI|java.net.URI|
|UUID|java.util.UUID|
|ZonedDateTime|java.time.ZonedDateTime|


## INSTANTIATION TYPES

| Type/Alias | Instantiated By |
| ---------- | --------------- |
|array|Seq|
|list|List|
|map|Map|
|seq|Seq|
|set|Set|


## LANGUAGE PRIMITIVES

<ul class="column-ul">
<li>Any</li>
<li>AnyRef</li>
<li>AnyVal</li>
<li>BigDecimal</li>
<li>Boolean</li>
<li>Double</li>
<li>Float</li>
<li>Int</li>
<li>Integer</li>
<li>Long</li>
<li>Object</li>
<li>String</li>
</ul>

## RESERVED WORDS

<ul class="column-ul">
<li>abstract</li>
<li>assert</li>
<li>break</li>
<li>byte</li>
<li>case</li>
<li>catch</li>
<li>char</li>
<li>class</li>
<li>const</li>
<li>continue</li>
<li>def</li>
<li>default</li>
<li>do</li>
<li>double</li>
<li>else</li>
<li>enum</li>
<li>extends</li>
<li>false</li>
<li>final</li>
<li>finally</li>
<li>float</li>
<li>for</li>
<li>forsome</li>
<li>goto</li>
<li>if</li>
<li>implements</li>
<li>implicit</li>
<li>import</li>
<li>instanceof</li>
<li>int</li>
<li>interface</li>
<li>lazy</li>
<li>long</li>
<li>match</li>
<li>native</li>
<li>new</li>
<li>null</li>
<li>object</li>
<li>override</li>
<li>package</li>
<li>private</li>
<li>protected</li>
<li>public</li>
<li>return</li>
<li>sealed</li>
<li>short</li>
<li>static</li>
<li>strictfp</li>
<li>super</li>
<li>switch</li>
<li>synchronized</li>
<li>this</li>
<li>throw</li>
<li>throws</li>
<li>trait</li>
<li>transient</li>
<li>true</li>
<li>try</li>
<li>type</li>
<li>val</li>
<li>var</li>
<li>void</li>
<li>volatile</li>
<li>while</li>
<li>with</li>
<li>yield</li>
</ul>

## FEATURE SET


### Client Modification Feature
| Name | Supported | Defined By |
| ---- | --------- | ---------- |
|BasePath|✗|ToolingExtension
|Authorizations|✗|ToolingExtension
|UserAgent|✗|ToolingExtension
|MockServer|✗|ToolingExtension

### Data Type Feature
| Name | Supported | Defined By |
| ---- | --------- | ---------- |
|Custom|✗|OAS2,OAS3
|Int32|✓|OAS2,OAS3
|Int64|✓|OAS2,OAS3
|Float|✓|OAS2,OAS3
|Double|✓|OAS2,OAS3
|Decimal|✓|ToolingExtension
|String|✓|OAS2,OAS3
|Byte|✓|OAS2,OAS3
|Binary|✓|OAS2,OAS3
|Boolean|✓|OAS2,OAS3
|Date|✓|OAS2,OAS3
|DateTime|✓|OAS2,OAS3
|Password|✓|OAS2,OAS3
|File|✓|OAS2
|Uuid|✗|
|Array|✓|OAS2,OAS3
|Null|✗|OAS3
|AnyType|✗|OAS2,OAS3
|Object|✓|OAS2,OAS3
|Maps|✓|ToolingExtension
|CollectionFormat|✓|OAS2
|CollectionFormatMulti|✓|OAS2
|Enum|✓|OAS2,OAS3
|ArrayOfEnum|✓|ToolingExtension
|ArrayOfModel|✓|ToolingExtension
|ArrayOfCollectionOfPrimitives|✓|ToolingExtension
|ArrayOfCollectionOfModel|✓|ToolingExtension
|ArrayOfCollectionOfEnum|✓|ToolingExtension
|MapOfEnum|✓|ToolingExtension
|MapOfModel|✓|ToolingExtension
|MapOfCollectionOfPrimitives|✓|ToolingExtension
|MapOfCollectionOfModel|✓|ToolingExtension
|MapOfCollectionOfEnum|✓|ToolingExtension

### Documentation Feature
| Name | Supported | Defined By |
| ---- | --------- | ---------- |
|Readme|✗|ToolingExtension
|Model|✓|ToolingExtension
|Api|✓|ToolingExtension

### Global Feature
| Name | Supported | Defined By |
| ---- | --------- | ---------- |
|Host|✓|OAS2,OAS3
|BasePath|✓|OAS2,OAS3
|Info|✓|OAS2,OAS3
|Schemes|✗|OAS2,OAS3
|PartialSchemes|✓|OAS2,OAS3
|Consumes|✓|OAS2
|Produces|✓|OAS2
|ExternalDocumentation|✓|OAS2,OAS3
|Examples|✓|OAS2,OAS3
|XMLStructureDefinitions|✗|OAS2,OAS3
|MultiServer|✗|OAS3
|ParameterizedServer|✗|OAS3
|ParameterStyling|✗|OAS3
|Callbacks|✗|OAS3
|LinkObjects|✗|OAS3

### Parameter Feature
| Name | Supported | Defined By |
| ---- | --------- | ---------- |
|Path|✓|OAS2,OAS3
|Query|✓|OAS2,OAS3
|Header|✓|OAS2,OAS3
|Body|✓|OAS2
|FormUnencoded|✓|OAS2
|FormMultipart|✗|OAS2
|Cookie|✗|OAS3

### Schema Support Feature
| Name | Supported | Defined By |
| ---- | --------- | ---------- |
|Simple|✓|OAS2,OAS3
|Composite|✓|OAS2,OAS3
|Polymorphism|✗|OAS2,OAS3
|Union|✗|OAS3
|allOf|✗|OAS2,OAS3
|anyOf|✗|OAS3
|oneOf|✗|OAS3
|not|✗|OAS3

### Security Feature
| Name | Supported | Defined By |
| ---- | --------- | ---------- |
|BasicAuth|✓|OAS2,OAS3
|ApiKey|✓|OAS2,OAS3
|OpenIDConnect|✗|OAS3
|BearerToken|✓|OAS3
|OAuth2_Implicit|✗|OAS2,OAS3
|OAuth2_Password|✗|OAS2,OAS3
|OAuth2_ClientCredentials|✗|OAS2,OAS3
|OAuth2_AuthorizationCode|✗|OAS2,OAS3
|SignatureAuth|✗|OAS3
|AWSV4Signature|✗|ToolingExtension

### Wire Format Feature
| Name | Supported | Defined By |
| ---- | --------- | ---------- |
|JSON|✓|OAS2,OAS3
|XML|✓|OAS2,OAS3
|PROTOBUF|✗|ToolingExtension
|Custom|✓|OAS2,OAS3
13 changes: 11 additions & 2 deletions modules/openapi-generator/src/main/java/org/openapitools/codegen/CodegenOperation.java
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Expand Up @@ -30,7 +30,7 @@ public class CodegenOperation {
hasVersionHeaders = false, hasVersionQueryParams = false,
isResponseBinary = false, isResponseFile = false, isResponseOptional = false, hasReference = false, defaultReturnType = false,
isRestfulIndex, isRestfulShow, isRestfulCreate, isRestfulUpdate, isRestfulDestroy,
isRestful, isDeprecated, isCallbackRequest, uniqueItems, hasDefaultResponse = false, hasConstantParams = false,
isRestful, isDeprecated, isCallbackRequest, uniqueItems, hasDefaultResponse = false, hasOnlyDefaultResponse = false, hasConstantParams = false,
hasErrorResponseObject, // if 4xx, 5xx responses have at least one error object defined
hasSingleParam = false; // if the operation has only one parameter;
public CodegenProperty returnProperty;
Expand Down Expand Up @@ -215,6 +215,13 @@ public boolean getHasDefaultResponse() {
return responses.stream().anyMatch(response -> response.isDefault);
}

/**
* Check if the responses contain only 1 entry and it's default
*
* @return true if responses contain only 1 entry and it's a default response, false otherwise
*/
public boolean getHasOnlyDefaultResponse() { return responses.size() == 1 && getHasDefaultResponse(); }

public boolean getAllResponsesAreErrors() {
return responses.stream().allMatch(response -> response.is4xx || response.is5xx);
}
Expand Down Expand Up @@ -351,6 +358,7 @@ public String toString() {
sb.append(", isResponseOptional=").append(isResponseOptional);
sb.append(", hasReference=").append(hasReference);
sb.append(", hasDefaultResponse=").append(hasDefaultResponse);
sb.append(", hasOnlyDefaultResponse=").append(hasOnlyDefaultResponse);
sb.append(", hasErrorResponseObject=").append(hasErrorResponseObject);
sb.append(", hasSingleParam=").append(hasSingleParam);
sb.append(", isRestfulIndex=").append(isRestfulIndex);
Expand Down Expand Up @@ -432,6 +440,7 @@ public boolean equals(Object o) {
isResponseOptional == that.isResponseOptional &&
hasReference == that.hasReference &&
hasDefaultResponse == that.hasDefaultResponse &&
hasOnlyDefaultResponse == that.hasOnlyDefaultResponse &&
hasErrorResponseObject == that.hasErrorResponseObject &&
hasSingleParam == that.hasSingleParam &&
isRestfulIndex == that.isRestfulIndex &&
Expand Down Expand Up @@ -496,7 +505,7 @@ public int hashCode() {
return Objects.hash(responseHeaders, hasAuthMethods, hasConsumes, hasProduces, hasParams, hasOptionalParams,
hasRequiredParams, returnTypeIsPrimitive, returnSimpleType, subresourceOperation, isMap,
isArray, isMultipart, isVoid, isResponseBinary, isResponseFile, isResponseOptional, hasReference,
hasDefaultResponse, isRestfulIndex, isRestfulShow, isRestfulCreate, isRestfulUpdate, isRestfulDestroy,
hasDefaultResponse, hasOnlyDefaultResponse, isRestfulIndex, isRestfulShow, isRestfulCreate, isRestfulUpdate, isRestfulDestroy,
isRestful, isDeprecated, isCallbackRequest, uniqueItems, path, operationId, returnType, httpMethod,
returnBaseType, returnContainer, summary, unescapedNotes, notes, baseName, defaultResponse,
discriminator, consumes, produces, prioritizedContentTypes, servers, bodyParam, allParams, bodyParams,
Expand Down
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