README
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This is a ProviderStore that stores DHT records in DynamoDB.
The schema of the table is:
- key (bytes)
- Primary Key
- typically this is the raw multihash of a CID
- ttl (number)
- Sort Key
- unix epoch timestamp of when the entry expires
- configure your DynamoDB table to use this as an item TTL for auto-eviction
- since this is a sort key, results for a given CID are ordered by this, so that you can return the most recently-cached providers first
- prov (bytes)
- the raw peer ID of the provider of the given key
A DHT put maps to a single PutItem request to DynamoDB.
DHT queries map to a DynamoDB Query, keyed on the CID multihash. The query returns an item per provider of the CID, up to a pre-configured limit. For popular CIDs with many providers, this could take many round-trips to DynamoDB to finish. A single round-trip can return up to 1 MB of items. Since items are automatically evicted by DynamoDB based on their TTL, this automatically excludes expired entries.
Documentation
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Index ¶
Constants ¶
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Variables ¶
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Functions ¶
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Types ¶
type DynamoDBProviderStore ¶
type DynamoDBProviderStore struct {
Self peer.ID
PeerStore peerStore
DDBClient *dynamodb.Client
TableName string
TTL time.Duration
QueryLimit int32
}
func (*DynamoDBProviderStore) AddProvider ¶
func (*DynamoDBProviderStore) GetProviders ¶
Source Files
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