Error encored during generating TypeError: type.toLocaleLowerCase is not a function

[hackermanmx]

Steps:

After installing api-client-generator ran api-client-generator -s ./api.yaml -o ./apidocs.

Assumptions:
YAML is valid.
No errors during installation.

Angular CLI: 6.0.7
Node: 10.2.1
OS: darwin x64
Angular: 6.0.3

• angular-devkit/architect 0.6.8
• angular-devkit/build-angular 0.6.8
• angular-devkit/build-optimizer 0.6.8
• angular-devkit/core 0.6.8
• angular-devkit/schematics 0.6.7 (cli-only)
• angular/cli 6.0.7
• ngtools/webpack 6.0.8
• schematics/angular 0.6.7 (cli-only)
• schematics/update 0.6.7 (cli-only)
• rxjs 6.2.1
• typescript 2.7.2
• webpack 4.8.3

Stack trace shown:

Error encored during generating TypeError: type.toLocaleLowerCase is not a function
at Object.toTypescriptType (/usr/local/lib/node_modules/api-client-generator/dist/helper.js:46:21)
at /usr/local/lib/node_modules/api-client-generator/dist/parser.js:109:39
at Array.map ()
at parseInterfaceProperties (/usr/local/lib/node_modules/api-client-generator/dist/parser.js:106:39)
at defineInterface (/usr/local/lib/node_modules/api-client-generator/dist/parser.js:161:22)
at defineEnumOrInterface (/usr/local/lib/node_modules/api-client-generator/dist/parser.js:75:11)
at /usr/local/lib/node_modules/api-client-generator/dist/parser.js:62:16
at Array.map ()
at parseDefinitions (/usr/local/lib/node_modules/api-client-generator/dist/parser.js:60:10)
at createMustacheViewModel (/usr/local/lib/node_modules/api-client-generator/dist/parser.js:18:22)

Any input is more than welcomed.

Cheers.

[vmasek]

@DeeNeon Thanks for the report. It seems like it tried to lowercase something else than string. Would it be possible to provide at least anonymized swagger file? it would really help me find the problem

[hackermanmx]

Thank you @vmasek for the follow up.
Here's the sample I'm trying to use, I hope this gets a lead!
sample.txt

[vmasek]

Problem is that given swagger seems invalid, if you try to validate it in https://editor.swagger.io/ you get multiple errors, where some are Schema "type" key must be a string which is the cause of the error in our case.

If we look at the docs, there is schamaObject spec which is telling us
type - Value MUST be a string. Multiple types via an array are not supported.

that means model like base-ml

base-ml:
    title: base-ml
    type: object
    properties:
      model_id:
        type:
          - 'null'
          - string
        default: null
      is_fraud:
        type:
          - boolean
          - 'null'
        default: null
      score:
        type:
          - integer
          - 'null'
        default: null
        minimum: 0
        maximum: 100

is invalid due to the types being arrays instead of just string value

I'll try to look at why it doesn't tell this when validating or if validation even happens properly.

[hackermanmx]

Thanks @vmasek I'll check, I actually exported it from Stoplight, and indeed it's invalid... sigh.
Cheers!