This project impements an verifyPolicyJSON method that:

• takes in a single argument - an AWS IAM Policy string as []bytes
• verifies whether the []bytes string is a valid AWS::IAM::Role Policy
• returns a bool value: true if the Resource policy field contains exactly one asterisk character, otherwise it returns false (inluding when the policy is invalid)

The method can be executed by running main.go - it reads JSON from data.json (which should be located in the root working directory), passes it to verifyPolicyJSON and prints out the function's result.

I've tested the project on go1.22.2, I cannot guarantee it will work on older versions.

Link to download Golang version 1.22.2: https://go.dev/dl/

1. Clone the project

$ git clone https://github.com/Matb85/remitly-home-assignment.git
$ cd ./remitly-home-assignment

2. Install dependencies

$ go get ./...
# or
$ go mod download

3. Prepare data and insert it to the data.json file

$ echo YOURDATA >> data.json

4. Run the project

$ go run ./main.go

5. Alternatively, build & run the project

$ go build ./main.go
$ ./main

I have written several unit tests for verifyPolicyJSON and UnmarshalJSON methods in order to ensure that everything works as expected.

To run the test suite, execute the following command:

$ go test ./...