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Add support for multiple @ResponseSchema decorators using oneOf. #58

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merged 6 commits into from
Sep 3, 2020
Merged

Add support for multiple @ResponseSchema decorators using oneOf. #58

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b4b3052
Add support for multiple @ResponseSchema decorators using oneOf.
godwinpang Sep 2, 2020
0cef643
Address linter.
godwinpang Sep 2, 2020
01c6dd6
Implemented code to handle the last case of multiple response schema.
Sep 2, 2020
c67e5e8
Refactor for readability.
godwinpang Sep 2, 2020
94d5d52
Limit lodash deps and remove unneeded function.
godwinpang Sep 3, 2020
1f8ddcd
Add docs.
godwinpang Sep 3, 2020
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142 changes: 142 additions & 0 deletions __tests__/decorators.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -176,6 +176,37 @@ describe('decorators', () => {
multipleResponseSchemas() {
return
}

@Get('/twoResponseSchemaSameStatusCode')
@ResponseSchema('SuccessObject1')
@ResponseSchema('SuccessObject2')
twoResponseSchemasSameStatusCode() {
return
}

@Get('/threeResponseSchemaSameStatusCode')
@ResponseSchema('SuccessObject1')
@ResponseSchema('SuccessObject2')
@ResponseSchema('SuccessObject3')
threeResponseSchemasSameStatusCode() {
return
}

@Get('/twoResponseSchemaSameStatusCodeWithOneArraySchema')
@ResponseSchema('SuccessObjects1', { isArray: true })
@ResponseSchema('SuccessObject2')
twoResponseSchemaSameStatusCodeWithOneArraySchema() {
return
}

@Get('/fourResponseSchemasMixedStatusCodeWithTwoArraySchemas')
@ResponseSchema('SuccessObjects1', { isArray: true })
@ResponseSchema('CreatedObject2', { statusCode: 201 })
@ResponseSchema('CreatedObjects3', { statusCode: 201, isArray: true})
@ResponseSchema('BadRequestObject4', { statusCode: 400 })
fourResponseSchemasMixedStatusCodeWithTwoArraySchemas() {
return
}
}

@Controller('/usershtml')
Expand Down Expand Up @@ -436,8 +467,119 @@ describe('decorators', () => {
}
})
})

it('applies two @ResponseSchema with same status code', () => {
const operation = getOperation(routes.twoResponseSchemasSameStatusCode, {})
expect(operation.responses).toEqual({
'200': {
content: {
'application/json': {
schema: {
oneOf: [
{$ref: '#/components/schemas/SuccessObject1'},
{$ref: '#/components/schemas/SuccessObject2'},
]
}
}
},
description: ''
}
})
})

it('applies three @ResponseSchema with same status code', () => {
const operation = getOperation(routes.threeResponseSchemasSameStatusCode, {})
expect(operation.responses).toEqual({
'200': {
content: {
'application/json': {
schema: {
oneOf: [
{$ref: '#/components/schemas/SuccessObject1'},
{$ref: '#/components/schemas/SuccessObject2'},
{$ref: '#/components/schemas/SuccessObject3'},
]
}
}
},
description: ''
}
})
})

it('applies two @ResponseSchema with same status code, where one of them is an array', () => {
const operation = getOperation(routes.twoResponseSchemaSameStatusCodeWithOneArraySchema, {})
expect(operation.responses).toEqual({
'200': {
content: {
'application/json': {
schema: {
oneOf: [
{
items: {
$ref: '#/components/schemas/SuccessObjects1'
},
type: 'array'
},
{$ref: '#/components/schemas/SuccessObject2'},
]
}
}
},
description: ''
}
})
})

it('applies four @ResponseSchema with mixed status code, where two of them are arrays', () => {
const operation = getOperation(routes.fourResponseSchemasMixedStatusCodeWithTwoArraySchemas, {})
expect(operation.responses).toEqual({
'200': {
content: {
'application/json': {
schema: {
items: {
$ref: '#/components/schemas/SuccessObjects1'
},
type: 'array'
}
}
},
description: ''
},
'201': {
content: {
'application/json': {
schema: {
oneOf: [
{$ref: '#/components/schemas/CreatedObject2'},
{
items: {
$ref: '#/components/schemas/CreatedObjects3'
},
type: 'array'
}
]
}
}
},
description: ''
},
'400': {
content: {
'application/json': {
schema: {
$ref: '#/components/schemas/BadRequestObject4'
}
}
},
description: ''
}
})
})
})


describe('@OpenAPI-decorated class', () => {
let routes: { [method: string]: IRoute }

Expand Down
21 changes: 21 additions & 0 deletions src/decorators.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -126,6 +126,27 @@ export function ResponseSchema(
},
}

const oldSchema =
source.responses[statusCode]?.content[contentType].schema

if (oldSchema?.$ref || oldSchema?.items || oldSchema?.oneOf) {
// case where we're adding multiple schemas under single statuscode/contentType
const newStatusCodeResponse = _.merge(
{},
source.responses[statusCode],
responses[statusCode]
)
const newSchema = oldSchema.oneOf
? {
oneOf: [...oldSchema.oneOf, schema],
}
: { oneOf: [oldSchema, schema] }

newStatusCodeResponse.content[contentType].schema = newSchema
source.responses[statusCode] = newStatusCodeResponse
return source
}

return _.merge({}, source, { responses })
}

Expand Down