This is for creating API in AWS API Gateway: https://medium.com/tensult/make-a-website-dynamic-using-apis-f5d07def5d77

api-gateway-swagger-template.json

{
  "swagger": "2.0",
  "info": {
    "title": "mywebsite"
  },
  "paths": {
    "/contact-us": {
      "post": {
        "produces": [
          "application/json"
        ],
        "responses": {
          "200": {
            "description": "200 response",
            "schema": {
              "$ref": "#/definitions/Empty"
            },
            "headers": {
              "Access-Control-Allow-Origin": {
                "type": "string"
              }
            }
          }
        }
      },
      "options": {
        "consumes": [
          "application/json"
        ],
        "produces": [
          "application/json"
        ],
        "responses": {
          "200": {
            "description": "200 response",
            "schema": {
              "$ref": "#/definitions/Empty"
            },
            "headers": {
              "Access-Control-Allow-Origin": {
                "type": "string"
              },
              "Access-Control-Allow-Methods": {
                "type": "string"
              },
              "Access-Control-Allow-Headers": {
                "type": "string"
              }
            }
          }
        }
      }
    }
  },
  "definitions": {
    "Empty": {
      "type": "object",
      "title": "Empty Schema"
    }
  }
}