npm package: @jappyjan/swagger-axios-codegen
Description: A swagger client uses axios and typescript
Author: Jan Jaap
Latest version: 0.14.2

# swagger-axios-codegen
A swagger client uses axios and typescript

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require node > v8.0.0

it will always resolve `axios.response.data` or reject `axios.error` with Promise

support other similar to `axios` library, for example [Fly.js](https://github.com/wendux/fly), required setting `ISwaggerOptions.useCustomerRequestInstance = true`

the es6 version is generated by calling typescript

Welcome PRs and commit issue

By the way. you can support this repo via Star star sta st s... ⭐️ ⭐️ ⭐️ ⭐️ ⭐️


## [Example](./example)

## [ChangeLog](./CHANGELOG.md)

## [Contributing](./CONTRIBUTING.md)

## Get Started

```
  yarn add swagger-axios-codegen
```

```js

export interface ISwaggerOptions {
  /** service name suffix eg. 'Service' **/
  serviceNameSuffix?: string
  /** enum prefix eg. 'Enum' **/
  enumNamePrefix?: string
  methodNameMode?: 'operationId' | 'path'
  /** path of the generated file eg. './src/service' **/
  outputDir?: string
  /** generated file name eg. 'index.ts' **/
  fileName?: string
  /** path to remote source file eg. 'https://localhost:8080/api/v1/swagger.json' **/
  remoteUrl?: string
  /** path to local source file eg. './swagger.json' **/
  source?: any
  useStaticMethod?: boolean | undefined
  /** client can pass custom headers to the service methods **/
  useCustomerRequestInstance?: boolean | undefined
  /** filter by service name (first tag) or method name using multimatch (https://github.com/sindresorhus/multimatch) **/
  include?: Array<string | IInclude>
  /** include extra types which are not included during the filtering Eg. ["Foo", "Bar"] **/
  includeTypes?: Array<string>
  /** filter urls by following clauses **/
  urlFilters?: Array<string>
  /** custom function to format the output file (default: prettier.format()) **/
  format?: (s: string) => string
  /** match with tsconfig */
  strictNullChecks?: boolean | undefined
  /** definition Class mode */
  modelMode?: 'class' | 'interface'
  /** use class-transformer to transform the results */
  useClassTransformer?: boolean,
  // force the specified swagger or openAPI version,
  openApi?: string | undefined,
  // extend file url. It will be inserted in front of the service method
  extendDefinitionFile?: string | undefined
  // mark generic type
  extendGenericType?: string[] | undefined
  // split request service 
  multipleFileMode?: boolean | undefined
}

const defaultOptions: ISwaggerOptions = {
  serviceNameSuffix: 'Service',
  enumNamePrefix: 'Enum',
  methodNameMode: 'operationId',
  outputDir: './service',
  fileName: 'index.ts',
  useStaticMethod: true,
  useCustomerRequestInstance: false,
  include: [],
  strictNullChecks: true,
  /** definition Class mode ,auto use interface mode to streamlined code*/
  modelMode?: 'interface'
  useClassTransformer: false
}

```

### use local swagger api json

```js 

const { codegen } = require('swagger-axios-codegen')
codegen({
  methodNameMode: 'operationId',
  source: require('./swagger.json')
})


```

### use remote swagger api json
```js 

const { codegen } = require('swagger-axios-codegen')
codegen({
  methodNameMode: 'operationId',
  remoteUrl:'You remote Url'
})


```

### use static method

```js
codegen({
    methodNameMode: 'operationId',
    remoteUrl: 'http://localhost:22742/swagger/v1/swagger.json',
    outputDir: '.',
    useStaticMethod: true
});

```

before


```js

import { UserService } from './service'
const userService = new UserService()
await userService.GetAll();

```

after

```js

import { UserService } from './service'

await UserService.GetAll();

```


### use custom axios.instance

```js
import axios from 'axios'
import { serviceOptions } from './service'
const instance = axios.create({
  baseURL: 'https://some-domain.com/api/',
  timeout: 1000,
  headers: {'X-Custom-Header': 'foobar'}
});

serviceOptions.axios = instance

```

### use other library

```js
import YourLib from '<Your lib>'
import { serviceOptions } from './service'

serviceOptions.axios = YourLib

```

### filter service and method 

fliter by [multimatch](https://github.com/sindresorhus/multimatch)

```js
let include = [
  '*',
  // 'Products*',
  '!Products',
  { 'User': ['*', '!history'] },
]
codegen({
  methodNameMode: 'path',
  source: require('../swagger.json'),
  outputDir: './swagger/services',
  include
})
```

If you are using special characters in your service name (which is the first tag) you must assume they have been escaped.

Eg. The service names are `MyApp.FirstModule.Products`, `MyApp.FirstModule.Customers`, `MyApp.SecondModule.Orders`:

```json
// API
"paths": {
  "/Products/Get": {
    "post": {
      "tags": [
        "MyApp.MyModule.Products"
      ],
      "operationId": "Get",
```

```js
// Codegen config
codegen({
  methodNameMode: 'path',
  source: require('../swagger.json'),
  outputDir: './swagger/services',
  include: ['MyAppMyModule*'] // Only Products and Customers will be included
})
```


### use class transformer to transform results

This is helpful if you want to transform dates to real date 
objects. Swagger can define string formats for different types. Two if these formats are `date` and `date-time`

If a `class-transformer` is enabled and a format is set on a string, the result string will be transformed to a `Date` instance


// swagger.json
```json
{
  "ObjectWithDate": {
    "type": "object",
    "properties": {
      "date": {
        "type": "string",
        "format": "date-time"
      }
    }
  }
}
```

```js

const { codegen } = require('swagger-axios-codegen')
codegen({
  methodNameMode: 'operationId',
  source:require('./swagger.json'),
  useClassTransformer: true,
})
```

Resulting class:
```ts
export class ObjectWithDate {
  @Expose()
  @Type(() => Date)
  public date: Date;
}
```

The service method will transform the json response and return an instance of this class

### use validation model

```js
codegen({
    ...
    modelMode: 'class',
    generateValidationModel: true
});
```

The option above among with class model mode allows to render the model validation rules. The result of this will be as follows:

```js
export class FooFormVm {
  'name'?: string;
  'description'?: string;
 
  constructor(data: undefined | any = {}) {
    this['name'] = data['name'];
    this['description'] = data['description'];
  }
 
  public static validationModel = {
    name: { required: true, maxLength: 50 },
    description: { maxLength: 250 },
  };
}
```
So you can use the validation model in your application:

```js
function isRequired(vm: any, fieldName: string): boolean {
  return (vm && vm[fieldName] && vm[fieldName].required === true);
}
function maxLength(vm: any, fieldName: string): number {
  return (vm && vm[fieldName] && vm[fieldName].maxLength ? vm[fieldName].maxLength : 4000);
}
```
Now you can use the functions
```js
var required = isRequired(FooFormVm.validationModel, 'name');
var maxLength = maxLength(FooFormVm.validationModel, 'description');
```
At the moment there are only two rules are supported - `required` and `maxLength`.