swagger-api/swagger-codegen

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swagger-codegen contains a template-driven engine to generate documentation, API clients and server stubs in different languages by parsing your OpenAPI / Swagger definition.

Stars: 17.8k
Forks: 6k
Open beginner issues: 1
Indexed issues: 3.1k

Dominant language: Mustache
License: Apache-2.0
Last GitHub push: Aug 18, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: help wanted
PR merge metrics: No merged PRs in 30d

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3,072 open issues indexed

Clarify options passed in simple Petstore example. Open

Difficulty 1/5 Under an hour Newbie friendliness 20/100

swagger-api/swagger-codegen#10507 · Opened Oct 14, 2020
Create two models with same name in different namespaces Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

swagger-api/swagger-codegen#10505 · Opened Oct 13, 2020
String cannot be cast to class io.swagger.codegen.v3.VendorExtendable Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

swagger-api/swagger-codegen#10502 · 2 reactions · Opened Oct 9, 2020
[JAVA] JAXB annotations missing for JAVA enums Open

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

swagger-api/swagger-codegen#10501 · Opened Oct 9, 2020
The Angular Compiler requires TypeScript >=3.6.4 and <3.9.0 but 3.5.3 was found instead. Open

Difficulty 2/5 1-3 hours Newbie friendliness 42/100

swagger-api/swagger-codegen#10500 · 7 comments · Opened Oct 8, 2020
[Java] redundant override in child class which causes ConstraintDeclarationException Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

swagger-api/swagger-codegen#10495 · 1 reaction · Opened Oct 7, 2020
[jaxrs-cxf-cdi] validations not working for the nested referneces in generated code Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

swagger-api/swagger-codegen#10494 · 1 comment · Opened Oct 6, 2020
Double Equals enum value(==) is not generated properly in Java Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

swagger-api/swagger-codegen#10493 · 1 comment · 1 reaction · Opened Oct 5, 2020
Generated type with OneOf should use base model Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

swagger-api/swagger-codegen#10492 · 4 reactions · Opened Oct 5, 2020
[GO] Error generating client, response body is consumed and returned as an empty pointer Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

swagger-api/swagger-codegen#10485 · 4 comments · 2 reactions · Opened Oct 4, 2020
kotlin-client uses $ sign in variable names Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

swagger-api/swagger-codegen#10484 · 1 reaction · Opened Oct 1, 2020
exported server stub nodjs server throwing error at npm start Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

swagger-api/swagger-codegen#10482 · Opened Sep 30, 2020
[PYTHON] variable substitution not occurring during template generation OpenAPI spec 3.0 Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

swagger-api/swagger-codegen#10480 · 1 comment · Opened Sep 29, 2020
[C#] Bug generating client with application/x-www-form-urlencoded request body Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

swagger-api/swagger-codegen#10479 · Opened Sep 29, 2020
[C# DOTNET] Incorrect example JSON generated for aspnetcore server stub Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

swagger-api/swagger-codegen#10477 · Opened Sep 25, 2020
Selective generation doesn't support CSV list Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

swagger-api/swagger-codegen#10476 · 2 comments · Opened Sep 25, 2020
[JAVA] Useless error message when invalid combination of options are set Open

Difficulty 3/5 1-2 days Newbie friendliness 38/100

swagger-api/swagger-codegen#10475 · Opened Sep 25, 2020
[JAVA] Bug swagger don't encode Germany character in query params Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

swagger-api/swagger-codegen#10474 · 4 comments · 1 reaction · Opened Sep 25, 2020
Errors in c-sharp code code generation export using https://app.swaggerhub.com/apis Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

swagger-api/swagger-codegen#10473 · Opened Sep 25, 2020
[3.0] Use requestBody examples as test data for API tests Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

swagger-api/swagger-codegen#10472 · Opened Sep 24, 2020
[JAVA] Generating allOf model does not use typeMappings Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

swagger-api/swagger-codegen#10471 · Opened Sep 24, 2020
[typescript-fetch] HTTP 204 - Client leave exception Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

swagger-api/swagger-codegen#10470 · 1 comment · Opened Sep 23, 2020
Generated C# code uses RestSharp 105.1.0 which has a bug in its Proxy imlementation Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

swagger-api/swagger-codegen#10469 · Opened Sep 23, 2020
Unclear Mac OS installation instructions in README.md file Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

swagger-api/swagger-codegen#10467 · Opened Sep 21, 2020
Error generating python code for server Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

swagger-api/swagger-codegen#10466 · 1 reaction · Opened Sep 20, 2020
[Spring-Boot server] Request body incorrectly generated as not optional by default Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

swagger-api/swagger-codegen#10463 · 4 comments · 4 reactions · Opened Sep 16, 2020
Swift 5 Implementation Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

swagger-api/swagger-codegen#10462 · Opened Sep 16, 2020
[C#] DateTimeFormat not used in objects serialization and deserialization by Newtonsoft Json.Net Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

swagger-api/swagger-codegen#10461 · Opened Sep 15, 2020
swagger 2.0 The python code created has an invalid import Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

swagger-api/swagger-codegen#10460 · Opened Sep 15, 2020
[Java] OneOf polymorphism code wasn't generated correctly Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

swagger-api/swagger-codegen#10459 · 5 comments · 15 reactions · Opened Sep 14, 2020
[C#] Invalid code produced for Multipart File with json generated by springdoc Open

Difficulty 3/5 1-2 days Newbie friendliness 32/100

swagger-api/swagger-codegen#10458 · 1 comment · Opened Sep 12, 2020
aspnetcore server codegen project file incompatible with Visual Studio 2019 dotnet 3.1 (builds on cmd line ok) Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

swagger-api/swagger-codegen#10457 · 2 comments · Opened Sep 12, 2020
JAVA code-gen not creating model java files Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

swagger-api/swagger-codegen#10456 · 2 comments · Opened Sep 11, 2020
[swift5] Entire path and HTTP method in operation signature Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

swagger-api/swagger-codegen#10452 · 1 comment · Opened Sep 9, 2020
Using javascript generated package with React result in error during react build Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

swagger-api/swagger-codegen#10451 · 1 comment · Opened Sep 8, 2020
xyz Open

Difficulty 5/5 Over a week Newbie friendliness 10/100

swagger-api/swagger-codegen#10450 · Opened Sep 5, 2020
Tag v3.0.21 and v2.4.15 have same commit id. Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

swagger-api/swagger-codegen#10449 · 2 comments · Opened Sep 4, 2020
Possible bug in code generation for java/springboot/ version 2.X Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

swagger-api/swagger-codegen#10448 · Opened Sep 3, 2020
[Java] Client Code Generation: Allof and Enum Inheritance Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

swagger-api/swagger-codegen#10446 · 17 comments · 7 reactions · Opened Sep 3, 2020
[Java] --model-name-prefix incompatible with oneOf Open

Difficulty 3/5 1-2 days Newbie friendliness 50/100

swagger-api/swagger-codegen#10442 · Opened Aug 28, 2020
[JAVA] Bug generating models with enum discriminator Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

swagger-api/swagger-codegen#10441 · 3 comments · 5 reactions · Opened Aug 27, 2020
[Java] Client Code Generation: Wrong Timestamp import Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

swagger-api/swagger-codegen#10440 · 1 comment · 1 reaction · Opened Aug 24, 2020
Java Codegen Problem Open

swagger-api/swagger-codegen#10439 · 3 comments · 1 assignee · Opened Aug 24, 2020
Generate Server for C# aspnetcore generates model property as List<object> even though inner properties are defined Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

swagger-api/swagger-codegen#10865 · Opened Aug 21, 2020
[Dart] need centralized place to override format for encoding & decoding of DateTime values Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

swagger-api/swagger-codegen#10437 · Opened Aug 18, 2020
Properties defined within allOf omitted depending on ordering Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

swagger-api/swagger-codegen#10436 · 1 comment · 1 reaction · Opened Aug 18, 2020
[Go] Go generated code does not return a response body on 202 Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

swagger-api/swagger-codegen#10435 · 4 reactions · Opened Aug 18, 2020
[Go] generated API code swallows decoding errors Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

swagger-api/swagger-codegen#10434 · 1 reaction · Opened Aug 18, 2020
how to generate func with async respone like CompletableFuture<String> Open

Difficulty 4/5 3-5 days Newbie friendliness 20/100

swagger-api/swagger-codegen#10432 · Opened Aug 17, 2020
Reference to external files fails Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

swagger-api/swagger-codegen#10431 · Opened Aug 17, 2020

swagger-api/swagger-codegen

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