Introspect AWS to get hostname of deployed API Gateway

Still doesn't work correctly with CI yet, but at least we don't need to
manually set hostname before running integration test locally.

Author: mikebroberts

__tests__/integration/api-integration.test.js

@@ -1,8 +1,20 @@
-const {test, expect} = require("@jest/globals"),
+const {beforeAll, test, expect} = require("@jest/globals"),
+    AWS = require("aws-sdk"),
     https = require('https')
 
+let apiEndpoint
+
+beforeAll(async () => {
+    const apiName = process.env.hasOwnProperty('API_NAME') ? process.env['API_NAME'] : 'sam-app'
+    console.log(`Looking for API Gateway named [${apiName}]`)
+
+    const apis = await new AWS.ApiGatewayV2().getApis().promise()
+
+    apiEndpoint = apis.Items.find(api => api.Name === apiName).ApiEndpoint
+    console.log(`Using Coffee Store API at [${apiEndpoint}]`)
+})
+
 test('API should return 200 exit code and expected content', async () => {
-    const apiEndpoint = process.env.COFFEE_API_ENDPOINT
     expect(apiEndpoint).toBeDefined()
 
     const result = await getWithBody(`${apiEndpoint}/`)

package-lock.json

@@ -4,11 +4,12 @@
     "private": true,
     "devDependencies": {
         "@jest/globals": "26.x",
-        "jest": "26.x"
+        "jest": "26.x",
+        "aws-sdk": "2.x"
     },
     "scripts": {
         "test": "npm run unit-test && npm run integration-test",
         "unit-test": "jest --config __tests__/jest-unit.config.js",
-        "integration-test": "jest --config __tests__/jest-integration.config.js"
+        "integration-test": "AWS_SDK_LOAD_CONFIG=true jest --config __tests__/jest-integration.config.js"
     }
 }