Distributed Services with Go

Test Your API

You now have a functioning JSON/HTTP commit log service you can run and test by hitting the endpoints with curl. Run the following snippet to start the server:

$ go run main.go

Open another tab in your terminal and run the following commands to add some records to your log:

	$ curl -X POST localhost:8080 -d \
	'{"record": {"value": "TGV0J3MgR28gIzEK"}}'
	$ curl -X POST localhost:8080 -d \
	'{"record": {"value": "TGV0J3MgR28gIzIK"}}'
	$ curl -X POST localhost:8080 -d \
	'{"record": {"value": "TGV0J3MgR28gIzMK"}}'

Go’s encoding/json package encodes []byte as a base64-encoding string. The record’s value is a []byte, so that’s why our requests have the base64 encoded forms of Let’s Go #1–3. You can read the records back by running the following commands and verifying that you get the associated records back from the server:

	$ curl -X GET localhost:8080 -d '{"offset": 0}'
	$ curl -X GET localhost:8080 -d '{"offset": 1}'
	$ curl -X GET localhost:8080 -d '{"offset": 2}'

Congratulations—you have built a simple JSON/HTTP service and confirmed it works!