import (
"context"
"fmt"
"math/rand"
"strconv"
"cloud.google.com/go/firestore"
"google.golang.org/api/iterator"
)
// Counter is a collection of documents (shards)
// to realize counter with high frequency.
type Counter struct {
numShards int
}
// Shard is a single counter, which is used in a group
// of other shards within Counter.
type Shard struct {
Count int
}
import random
from google.cloud import firestore
class Shard(object):
"""
A shard is a distributed counter. Each shard can support being incremented
once per second. Multiple shards are needed within a Counter to allow
more frequent incrementing.
"""
def __init__(self):
self._count = 0
def to_dict(self):
return {"count": self._count}
class Counter(object):
"""
A counter stores a collection of shards which are
summed to return a total count. This allows for more
frequent incrementing than a single document.
"""
def __init__(self, num_shards):
self._num_shards = num_shards
