[BUG] axios typescript generator generate models in a single file

[albertotn]

Bug Report Checklist

• [x ] Have you provided a full/minimal spec to reproduce the issue?
• [x] Have you validated the input using an OpenAPI validator (example)?
• [x] Have you tested with the latest master to confirm the issue still exists?
• [x] Have you searched for related issues/PRs?
• [x] What's the actual output vs expected output?
• [ ] [Optional] Sponsorship to speed up the bug fix or feature request (example)

Description

Using axios typescript generator model defined in openApi are created in the same file as interfaces

openapi-generator version

5.3.0

OpenAPI declaration file content or url

see https://raw.githubusercontent.com/OAI/OpenAPI-Specification/main/examples/v2.0/yaml/petstore.yaml

Generation Details

1. java in the path

Steps to reproduce

1. download in a folder https://raw.githubusercontent.com/OAI/OpenAPI-Specification/main/examples/v2.0/yaml/petstore.yaml
2. run java -jar openapi-generator-cli-5.3.0.jar generate -i petstore.yaml -g typescript-axios -o generatedPetStore
3. generated models are inside the api file, instead should be in a separated file

Related issues/PRs

Suggest a fix

Like java spring generator, each model should be in a separated file ( as future reference for search split / splitted / multiple )

[amelnikoff]

Have you tried to use additionalProperty: withSeparateModelsAndApi ?

[DOrlov77]

Using withSeparateModelsAndApi lead to the generator failure.

[DOrlov77]

I found the solution, the apiPackage and modelPackage params must be defined together with the withSeparateModelsAndApi, like: { "withSeparateModelsAndApi": true, "apiPackage": "apis", "modelPackage": "models" }