Before jumping in, let us design the API specification table, which shows the REST API signatures for various URL endpoints. Refer to the following table:
| Endpoint | Method | Description |
| /v1/user/id | GET | Get a user using ID |
| /v1/user | POST | Create a new user |
| /v1/user?first_name=NAME | GET | Get all users by the given first name |
| /v1/order/id | GET | Get an order with the given ID |
| /v1/order | POST | Create a new order |
Now we come to the main program; let us add one more file to our jsonstore project. In this program, we will try to implement the first three endpoints. We suggest the implementation of the remaining two endpoints as an assignment for the reader. Take a look at the following command:
touch jsonstore/main.go ...
