rqlite

# 1. Start a node
$ rqlited -node-id 1 data/

# 2. Join two more, and a node can now fail with no downtime
$ rqlited -node-id 2 -http-addr localhost:4003 \
      -raft-addr localhost:4004 -join localhost:4002 data2/
$ rqlited -node-id 3 -http-addr localhost:4005 \
      -raft-addr localhost:4006 -join localhost:4002 data3/

# 3. Write over HTTP, no driver required
$ curl 'localhost:4001/db/execute' \
      -H "Content-Type: text/plain" -d \
      'CREATE TABLE foo (name TEXT, age INTEGER)'
$ curl 'localhost:4001/db/execute' \
      -H "Content-Type: text/plain" -d \
      'INSERT INTO foo(name, age) VALUES("fiona", 20)'

# 4. Query your data
$ curl -G 'localhost:4001/db/query' \
      --data-urlencode 'q=SELECT * FROM foo'
{"results":[{"columns":["name", "age"],
  "types":["integer","text"], "values":[["fiona", 20]]}]}