Implement Golang caching middleware server for Autopilot API /contact method (you can create a free trial account and read about Autopilot API on https://autopilot.docs.apiary.io/#introduction/getting-help):

• Create GET / POST / PUT /contact endpoint
  • Note: PUT in not supported by API Docs, but POST support idempotency, and act like PUT

    # PUT response example at API
    {
        "code": "MethodNotAllowedError",
        "message": "PUT is not allowed"
    }
    

• Retrieve a requested contact from redis, if it is not present retrieve it from Autopilot API and store in redis
• Create / Update a contact and invalidate redis cache after POST / PUT requests
• Cover the necessary methods with unit tests
• Write README file with instructions how to run and test it

Before running service please make that Environment Variables are set correctly and point correct services, by default it set to:

export AUTOPILOT_API="https://private-1f378a-autopilot.apiary-proxy.com"
export REDIS_HOST="localhost:6379"

Please run server.go file and listen Reverse Proxy on port 8080.

$ go get -v
$ go run ./

request example

curl --location --request POST 'http://0.0.0.0:8080/v1/contact' \
--header 'autopilotapikey: xxxxxxxxxxxxxxx' \
--header 'Content-Type: application/json' \
--data-raw '{
  "contact": {
    "FirstName": "Bob",
    "LastName": "Goodman",
    "Email": "[email protected]",
    "custom": {
      "string--Test--Field": "This is a test"
    }
  }
}'

expected response

{
    "contact_id": "person_BEDEF3B9-8B84-4F5F-AA58-22D025DDA683"
}

request example

curl --location --request GET 'http://0.0.0.0:8080/v1/contact/person_BEDEF3B9-8B84-4F5F-AA58-22D025DDA683' \
--header 'autopilotapikey: xxxxxxxxxxxxxxxxxxxxxxx'

expected response

{
    "Email": "[email protected]",
    "created_at": "2021-10-31T04:21:50.000Z",
    "updated_at": "2021-10-31T04:21:50.000Z",
    "api_originated": true,
    "custom_fields": [
        {
            "kind": "Test Field",
            "value": "This is a test",
            "fieldType": "string",
            "deleted": false
        }
    ],
    "Name": "Bob Goodman",
    "LastName": "Goodman",
    "FirstName": "Bob",
    "contact_id": "person_BEDEF3B9-8B84-4F5F-AA58-22D025DDA683"
}

to run tests

 go test -v -cover ./...

Expected output

=== RUN   TestGetContact

  Test GET Contact ✔✔✔✔✔
    Test cache is set ✔✔


7 total assertions

--- PASS: TestGetContact (0.10s)
=== RUN   TestPostContact

  Test POST Contact ✔✔✔✔✔✔
    Test POST invalidate cache ✔


14 total assertions

--- PASS: TestPostContact (0.11s)
PASS
coverage: 70.4% of statements
ok      github.com/xsoroton/autopilot-proxy/handlers    0.218s  coverage: 70.4% of statements
=== RUN   TestStoreMem

  Test Store Mem ✔✔✔✔✔✔


6 total assertions

--- PASS: TestStoreMem (0.00s)
PASS
coverage: 65.2% of statements
ok      github.com/xsoroton/autopilot-proxy/store       (cached)        coverage: 65.2% of statements