Interview Code Challenge

Welcome to the interview code challenge for potential candidates! In this challenge, you will work on a simple CRUD application that manages audiences and their expressions. The challenge is designed to be run as a pair-programming session where we will be looking over your shoulder to see how you work and collaborate.

Task Options

Option 1: Audience and Expression JSON Marshaling

Issue: The current implementation of JSON unmarshaling for the Expression struct is causing the tests to fail. Your task is to fix the unmarshaling implementation so that the tests pass.

Instructions: We will work together to update the domain/audience.go file in the option_1 branch to modify the JSON unmarshaler implementation of Expression structs, ensuring correct decoding of the JSON data. We will use the json.Unmarshal function from the Go standard library to handle the decoding.

Steps (Option 1):

1. Clone this repository to your local development environment.
2. Checkout the option_1 branch.
3. Run the unit tests.

Option 2: Correctly Returning ID after Audience Creation

Issue: When creating an audience, the code in the Create method of the audienceRepository does not return the inserted ID in the response. Your task is to modify the Create method to correctly return the inserted ID after an audience is created.

Instructions: We will work together to update the db/audience_repository.go file in the option_2 branch to modify the Create method implementation. After inserting an audience record into the database, we will fetch the inserted ID and return it in the response. We will ensure that the AudienceID type is correctly used for the ID field.

Steps (Option 2):

1. Clone this repository to your local development environment.
2. Checkout the option_2 branch.
3. Run the application with Docker Compose.
4. Send a POST request using curl to create an audience with expression data:
5. curl -X POST http://localhost:8080/audience --data '{"name":"my audience", "expression": {"question_code":"q1"}}'

The response should be: {"id":"1","name":"my audience","expression":{"question_code":"q1"}}.

Note

• The code provided in this challenge is intentionally not perfect. It may contain bugs, inefficiencies, or missing functionality. During our pair-programming session, feel free to talk about any issues you encounter and provide suggestions for better solutions.

We look forward to working with you in the pair-programming session and learning more about your coding skills and collaboration approach!