Use an array as response model in AWS Gateway cdk - arrays

Question

I'm trying to create a typescript aws cdk to build up an API Gateway with this own swagger documentation.
There is one simple endpoint returning a list of "Supplier", but we don't know how to specify this in the cdk.
Here the code:
export function CreateSupplierMethods(apigw: apigateway.Resource,restApiId: string, scope: cdk.Construct, api: apigateway.RestApi) {
let suppliers = apigw.addResource('suppliers')
let supplierModel = new apigateway.Model(scope, "supplier-model", {
modelName: "supplier",
restApi: api,
contentType: 'application/json',
schema: {
description: "Supplier data",
title: "Supplier",
properties: {
code: { type: apigateway.JsonSchemaType.STRING, minLength: 4, maxLength: 6},
name: { type: apigateway.JsonSchemaType.STRING, maxLength: 81},
}
},
})
let getSuppliers = suppliers.addMethod('GET', new apigateway.MockIntegration(), {
methodResponses: [{
statusCode: "200",
responseModels: {
"application/json": supplierModel,
}
},
{
statusCode: "401",
}]
})
}
As you can see, the GET has the supplierModel as output.
How can I say "returns a list of supplierModel"? I wish I can use this model for both list of supplier and single instances of supplier (like a GET method with id as input).
Is this possible? If yes, how?
Looking the generated json, I'm trying to have something like this:
But what I'm getting now is quite different:
How can I get a result like the first image?

Answer 1

You are creating a model and assigning it to the method.
Create an array of those models and then assign that array to the method.
let supplierModelArray = new apigateway.Model(scope, "supplier-model-array", {
modelName: "supplier-array",
restApi: api,
contentType: 'application/json',
schema: {
description: "Supplier data",
title: "Supplier",
type: apigateway.JsonSchemaType.ARRAY
items: {type: supplierModel}
},
})
And change the "application/json": supplierModel in api to "application/json": supplierModelArray