Can't generate v3 spec by 3.0.0 cli #6517

poppinlp · 2017-09-19T07:29:49Z

Description

I got an email which says 3.0.0 spec is officially released. So i came to here and downloaded this 3.0.0 cli jar and use it to generate code. It works for v2 spec YAML. But generate v3 spec YAML with this error log:

[main] INFO io.swagger.parser.Swagger20Parser - reading from config/test.yml
[main] INFO io.swagger.parser.Swagger20Parser - reading from config/test.yml
[main] ERROR io.swagger.parser.SwaggerCompatConverter - failed to read resource listing
com.fasterxml.jackson.core.JsonParseException: Unrecognized token 'openapi': was expecting ('true', 'false' or 'null')
 at [Source: config/test.yml; line: 1, column: 9]
        at com.fasterxml.jackson.core.JsonParser._constructError(JsonParser.java:1702)
        at com.fasterxml.jackson.core.base.ParserMinimalBase._reportError(ParserMinimalBase.java:558)
        at com.fasterxml.jackson.core.json.UTF8StreamJsonParser._reportInvalidToken(UTF8StreamJsonParser.java:3528)
        at com.fasterxml.jackson.core.json.UTF8StreamJsonParser._handleUnexpectedValue(UTF8StreamJsonParser.java:2686)
        at com.fasterxml.jackson.core.json.UTF8StreamJsonParser._nextTokenNotInObject(UTF8StreamJsonParser.java:878)
        at com.fasterxml.jackson.core.json.UTF8StreamJsonParser.nextToken(UTF8StreamJsonParser.java:772)
        at com.fasterxml.jackson.databind.ObjectMapper._initForReading(ObjectMapper.java:3850)
        at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:3799)
        at com.fasterxml.jackson.databind.ObjectMapper.readTree(ObjectMapper.java:2447)
        at io.swagger.parser.SwaggerCompatConverter.readResourceListing(SwaggerCompatConverter.java:189)
        at io.swagger.parser.SwaggerCompatConverter.read(SwaggerCompatConverter.java:116)
        at io.swagger.parser.SwaggerParser.read(SwaggerParser.java:75)
        at io.swagger.codegen.config.CodegenConfigurator.toClientOptInput(CodegenConfigurator.java:431)
        at io.swagger.codegen.cmd.Generate.run(Generate.java:283)
        at io.swagger.codegen.SwaggerCodegen.main(SwaggerCodegen.java:35)
Exception in thread "main" java.lang.RuntimeException: missing swagger input or config!
        at io.swagger.codegen.DefaultGenerator.generate(DefaultGenerator.java:715)
        at io.swagger.codegen.cmd.Generate.run(Generate.java:285)
        at io.swagger.codegen.SwaggerCodegen.main(SwaggerCodegen.java:35)

Seems it can't parse v3 spec T_T

Swagger-codegen version

This jar from your snapshot list.

Swagger declaration file content or url

The v3 spec is from your guide page:

openapi: 3.0.0
info:
  title: Sample API
  description: Optional multiline or single-line description in [CommonMark](http://commonmark.org/help/) or HTML.
  version: 0.1.9

servers:
  - url: http://api.example.com/v1
    description: Optional server description, e.g. Main (production) server
  - url: http://staging-api.example.com
    description: Optional server description, e.g. Internal staging server for testing

paths:
  /users:
    get:
      summary: Returns a list of users.
      description: Optional extended description in CommonMark or HTML.
      responses:
        '200':    # status code
          description: A JSON array of user names
          content:
            'application/json':
              schema: 
                type: array
                items: 
                  type: string

Command line used for generation

java -jar swagger/swagger-codegen-cli-3.0.0-20170904.171256-3.jar generate \
-i config/test.yml \
-o dist/ \
-l javascript

Steps to reproduce

Download that jar and generate that demo spec.

Should i add some special arguments to active v3 support? Thanks.

The text was updated successfully, but these errors were encountered:

Johanneke · 2017-09-19T14:13:41Z

Same issue, very annoying. Either don't push the 3.0 spec on people by only providing the documentation for that version, or make sure your other tools work as well :-(

frol · 2017-09-19T14:16:46Z

Well, they released the 3.0 spec to indicate that they are not going to change it and the devs of the tools can expect that the spec is solid and stable now.

Johanneke · 2017-09-19T15:44:02Z

That's fair, but releasing a spec is not the same as actively hiding the older version of the spec. If tooling is not ready for 3.0, I'd like to be able to easily get to the 2.0 docs. I do realise though, that that is not an issue for the swagger-codegen github.

rkachowski · 2017-09-25T13:32:44Z

damn, I've just spent a day massaging my swagger spec to fit v3 schema and now it's pointless :/

I wish the default docs were in sync with the currently released version. It's quite confusing to advertise openapi v3 on the homepage, and also link to swagger codegen which only supports v2.

krisklosterman · 2017-10-17T15:59:54Z

The 3.0 Snapshots seem to not even work with it yet :'(

java -jar swagger-codegen-cli-3.0.0-20171009.075709-6.jar generate -i blx-api.json -l nodejs-server -o /tmp/test --ignore-file-override /tmp/test
[main] INFO io.swagger.parser.Swagger20Parser - reading from blx-api.json
[main] INFO io.swagger.parser.Swagger20Parser - reading from blx-api.json
[main] INFO io.swagger.codegen.ignore.CodegenIgnoreProcessor - No test file found.
Exception in thread "main" java.lang.RuntimeException: missing swagger input or config!
	at io.swagger.codegen.DefaultGenerator.generate(DefaultGenerator.java:687)
	at io.swagger.codegen.cmd.Generate.run(Generate.java:285)
	at io.swagger.codegen.SwaggerCodegen.main(SwaggerCodegen.java:35)

feikede · 2017-10-27T07:02:31Z

Built my jar from the 3.0.0 branch today. It's still failing to read the "openapi" spec. Fails for json input and yaml input (stacktraces like here in the thread before). But the editor works with 3.0.0. I am sad. Is there any hint for a date when we plan to release a codegen-cli for OAS 3?
Can I help somehow?

no-logic · 2017-11-06T18:33:41Z

I watch this thread for details about either release news, or when the snapshot will begin to show signs of supporting openapi 3.0, but no news yet ---> #4669

MikeRalphson · 2017-11-20T14:05:21Z

Please see #7003 for an experimental implementation of the generator engine in Node.js which supports OpenAPI 3.0

travis-sobeck · 2018-04-24T19:09:04Z

Just pulled https://hub.docker.com/r/swaggerapi/swagger-codegen-cli/tags/ latest version and still getting the same error, any updates on this since Nov?
Thanks

StanislawSwierc · 2018-05-18T02:51:34Z

Same here. What is the point of releasing specification that is dead on arrival?

HugoMario · 2018-05-18T04:47:03Z

hey @travis-sobeck , @StanislawSwierc , @poppinlp
You can try with cli on 3.0.0 branch.

StanislawSwierc · 2018-05-18T13:37:43Z

It somewhat works in a sense that is parses the specification!

More than parsing I care about code generation and it doesn't seem to be at the right level. As you can tell from the second stack trace I've run it on Windows.

typescript-angular

Caused by: java.io.FileNotFoundException: /v2\typescript-angular/v2/typescript-angular/model.mustache
        at com.github.jknack.handlebars.io.URLTemplateLoader.sourceAt(URLTemplateLoader.java:70)
        at com.github.jknack.handlebars.Handlebars.compile(Handlebars.java:357)
        at com.github.jknack.handlebars.Handlebars.compile(Handlebars.java:343)
        at io.swagger.codegen.DefaultGenerator.getHandlebars(DefaultGenerator.java:1026)
        at io.swagger.codegen.DefaultGenerator.processTemplateToFile(DefaultGenerator.java:744)
        at io.swagger.codegen.DefaultGenerator.generateModels(DefaultGenerator.java:396)
        ... 3 more

Java

Exception in thread "Thread-1" java.lang.RuntimeException: Could not generate model 'Choice'        
        at io.swagger.codegen.DefaultGenerator.generateModels(DefaultGenerator.java:409)            
        at io.swagger.codegen.DefaultGenerator.generate(DefaultGenerator.java:728)                  
        at io.swagger.codegen.cmd.Generate.run(Generate.java:331)                                   
        at java.lang.Thread.run(Unknown Source)                                                     
Caused by: java.util.regex.PatternSyntaxException: Illegal/unsupported escape sequence near index 3 
v2\Java                                                                                             
   ^                                                                                                
        at java.util.regex.Pattern.error(Unknown Source)                                            
        at java.util.regex.Pattern.escape(Unknown Source)                                           
        at java.util.regex.Pattern.atom(Unknown Source)                                             
        at java.util.regex.Pattern.sequence(Unknown Source)                                         
        at java.util.regex.Pattern.expr(Unknown Source)                                             
        at java.util.regex.Pattern.compile(Unknown Source)                                          
        at java.util.regex.Pattern.<init>(Unknown Source)                                           
        at java.util.regex.Pattern.compile(Unknown Source)                                          
        at java.lang.String.replaceFirst(Unknown Source)                                            
        at io.swagger.codegen.DefaultGenerator.getHandlebars(DefaultGenerator.java:1014)            
        at io.swagger.codegen.DefaultGenerator.processTemplateToFile(DefaultGenerator.java:744)     
        at io.swagger.codegen.DefaultGenerator.generateModels(DefaultGenerator.java:396)

HugoMario · 2018-05-18T14:19:03Z

We know about this issue, i hope it could be fixed next week.

travis-sobeck · 2018-05-18T17:00:06Z

@HugoMario Since I'm a windows admin with a windows machine ... I rely on docker. Looks like the the container hasn't been updated in awhile https://hub.docker.com/r/swaggerapi/swagger-codegen-cli/ so I forked master today and tried to build a container based off the Dockerfile in master. It threw the following error
[ERROR] [ERROR] Some problems were encountered while processing the POMs: [ERROR] Child module /opt/swagger-codegen/modules/swagger-generator of /opt/swagger-codegen/pom.xml does not exist @ @ [ERROR] The build could not read 1 project -> [Help 1] [ERROR] [ERROR] The project io.swagger:swagger-codegen-project:2.4.0-SNAPSHOT (/opt/swagger-codegen/pom.xml) has 1 error [ERROR] Child module /opt/swagger-codegen/modules/swagger-generator of /opt/swagger-codegen/pom.xml does not exist
Oh, the docker file is missing
COPY ./modules/swagger-generator ${GEN_DIR}/modules/swagger-generator

travis-sobeck · 2018-05-18T17:08:22Z

@HugoMario I added that COPY line into the Dockerfile, ran build and that didn't really go well.

HugoMario · 2018-06-09T01:45:04Z

hey @StanislawSwierc, sorry for late response. the path error has been already fixed, can you please check and let me know if it's still present.

HugoMario · 2018-06-09T01:57:15Z

@travis-sobeck , can you please file that error in a new issue?

HugoMario · 2018-06-09T01:58:01Z

I'm going to close this issue since we can generate now v3 spec using 3.0.0 cli.

disbrain · 2018-07-17T14:50:42Z

Same issue with swagger-codegen-cli-3.0.0-rc1.jar

andgineer · 2019-01-02T10:29:43Z

Same problem with swaggerapi/swagger-codegen-cli:unstable:
com.fasterxml.jackson.core.JsonParseException: Unrecognized token 'openapi': was expecting ('true', 'false' or 'null') at [Source: (String)"openapi: 3.0.0

terbooter · 2019-02-05T08:10:57Z

Same problem
Using docker image to generate

version: "2"
services:
  gen-swagger:
    volumes:
    - ./docs:/docs
    image: swaggerapi/swagger-codegen-cli
    command: generate -i /docs/admin-openapi.yaml -l swagger -o /docs

Error:

gen-swagger_1  | [main] INFO io.swagger.parser.Swagger20Parser - reading from /docs/admin-openapi.yaml
gen-swagger_1  | [main] INFO io.swagger.parser.Swagger20Parser - reading from /docs/admin-openapi.yaml
gen-swagger_1  | [main] ERROR io.swagger.parser.SwaggerCompatConverter - failed to read resource listing
gen-swagger_1  | com.fasterxml.jackson.core.JsonParseException: Unrecognized token 'openapi': was expecting ('true', 'false' or 'null')
gen-swagger_1  |  at [Source: (String)"openapi: 3.0.3
gen-swagger_1  | # Added by API Auto Mocking Plugin
gen-swagger_1  | servers:
gen-swagger_1  | # Added by API Auto Mocking Plugin

yh1224 · 2019-05-17T22:06:06Z

swaggerapi/swagger-codegen-cli-v3 works fine.

mcraveiro · 2019-09-27T11:48:57Z

I just git cloned the repo and changed to branch 3.0.0. I got the exact same error:

$ java -jar ${SWAGGER_DIR}/modules/swagger-codegen-cli/target/swagger-codegen-cli.jar generate --lang=restbed --output=. --input-spec=FILE.yaml
[main] INFO io.swagger.parser.Swagger20Parser - reading from FILE.yaml
[main] INFO io.swagger.parser.Swagger20Parser - reading from FILE.yaml
[main] ERROR io.swagger.parser.SwaggerCompatConverter - failed to read resource listing
com.fasterxml.jackson.core.JsonParseException: Unrecognized token 'openapi': was expecting ('true', 'false' or 'null')
 at [Source: (String)"openapi: 3.0.0

hparadiz · 2020-05-05T03:00:42Z

Make sure you rebuild the jar by running mvn clean package after you checkout 3.0.0

wangyiran125 mentioned this issue Oct 23, 2017

how to put parameter default value into generated code in swagger #6782

Closed

MikeRalphson mentioned this issue Nov 20, 2017

Node.js generator implementation with OpenAPI 3.0 support #7003

Open

HugoMario closed this as completed Jun 9, 2018

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Can't generate v3 spec by 3.0.0 cli #6517

Can't generate v3 spec by 3.0.0 cli #6517

poppinlp commented Sep 19, 2017 •

edited

Loading

Johanneke commented Sep 19, 2017

frol commented Sep 19, 2017

Johanneke commented Sep 19, 2017

rkachowski commented Sep 25, 2017 •

edited

Loading

krisklosterman commented Oct 17, 2017

feikede commented Oct 27, 2017

no-logic commented Nov 6, 2017 •

edited

Loading

MikeRalphson commented Nov 20, 2017

travis-sobeck commented Apr 24, 2018

StanislawSwierc commented May 18, 2018

HugoMario commented May 18, 2018

StanislawSwierc commented May 18, 2018

HugoMario commented May 18, 2018

travis-sobeck commented May 18, 2018

travis-sobeck commented May 18, 2018

HugoMario commented Jun 9, 2018 •

edited

Loading

HugoMario commented Jun 9, 2018

HugoMario commented Jun 9, 2018

disbrain commented Jul 17, 2018

andgineer commented Jan 2, 2019

terbooter commented Feb 5, 2019

yh1224 commented May 17, 2019

mcraveiro commented Sep 27, 2019

hparadiz commented May 5, 2020

Can't generate v3 spec by 3.0.0 cli #6517

Can't generate v3 spec by 3.0.0 cli #6517

Comments

poppinlp commented Sep 19, 2017 • edited Loading

Description

Swagger-codegen version

Swagger declaration file content or url

Command line used for generation

Steps to reproduce

Johanneke commented Sep 19, 2017

frol commented Sep 19, 2017

Johanneke commented Sep 19, 2017

rkachowski commented Sep 25, 2017 • edited Loading

krisklosterman commented Oct 17, 2017

feikede commented Oct 27, 2017

no-logic commented Nov 6, 2017 • edited Loading

MikeRalphson commented Nov 20, 2017

travis-sobeck commented Apr 24, 2018

StanislawSwierc commented May 18, 2018

HugoMario commented May 18, 2018

StanislawSwierc commented May 18, 2018

HugoMario commented May 18, 2018

travis-sobeck commented May 18, 2018

travis-sobeck commented May 18, 2018

HugoMario commented Jun 9, 2018 • edited Loading

HugoMario commented Jun 9, 2018

HugoMario commented Jun 9, 2018

disbrain commented Jul 17, 2018

andgineer commented Jan 2, 2019

terbooter commented Feb 5, 2019

yh1224 commented May 17, 2019

mcraveiro commented Sep 27, 2019

hparadiz commented May 5, 2020

poppinlp commented Sep 19, 2017 •

edited

Loading

rkachowski commented Sep 25, 2017 •

edited

Loading

no-logic commented Nov 6, 2017 •

edited

Loading

HugoMario commented Jun 9, 2018 •

edited

Loading