Module fred::types

The structs and enums used by the Redis client.

Structs

• BackpressureConfig
  Configuration options for backpressure features in the client.
• Builder
  A client and pool builder interface.
• ClusterInfoi-cluster
  A parsed response from the CLUSTER INFO command.
• ClusterRouting
  The cached view of the cluster used by the client to route commands to the correct cluster nodes.
• ConnectionConfig
  Configuration options related to the creation or management of TCP connection.
• CustomCommand
  Configuration for custom redis commands, primarily used for interacting with third party modules or extensions.
• DatabaseMemoryStatsi-memory
  The parsed result of the MEMORY STATS command for a specific database.
• Functioni-scripts
  An individual function within a Library.
• GeoPositioni-geo
  A struct describing the longitude and latitude coordinates of a GEO command.
• GeoRadiusInfoi-geo
  A typed struct representing the full output of the GEORADIUS (or similar) command.
• GeoValuei-geo
  A struct describing the value inside a GEO data structure.
• GroupByi-time-series
  A struct representing GROUPBY label REDUCE reducer in commands such as TS.MRANGE.
• HScanResult
  The result of a HSCAN operation.
• Invalidationi-client and i-tracking
  A client tracking invalidation message from the provided server.
• KeyspaceEvent
  An event on the publish-subscribe interface describing a keyspace notification.
• Libraryi-scripts
  A helper struct for interacting with libraries and functions.
• MemoryStatsi-memory
  The parsed result of the MEMORY STATS command.
• Message
  A publish-subscribe message.
• MultipleGeoValuesi-geo
  A convenience struct for commands that take one or more GEO values.
• MultipleHashSlots
  A convenience struct for functions that take one or more hash slot values.
• MultipleIDsi-streams
  One or more IDs for elements in a stream.
• MultipleKeys
  Convenience struct for commands that take 1 or more keys.
• MultipleOrderedPairsi-streams
  One or more ordered key-value pairs, typically used as an argument for XADD.
• MultipleWeightsi-sorted-sets
  Convenience struct for ZINTERSTORE and ZUNIONSTORE when accepting 1 or more weights arguments.
• MultipleZaddValuesi-sorted-sets
  Convenience struct for the ZADD command to accept 1 or more (score, value) arguments.
• Options
  Options to configure or overwrite for individual commands.
• PerformanceConfig
  Configuration options that can affect the performance of the client.
• RangeAggregationi-time-series
  A struct representing [ALIGN align] AGGREGATION aggregator bucketDuration [BUCKETTIMESTAMP bt] [EMPTY] in commands such as TS.MRANGE.
• RedisConfig
  Configuration options for a RedisClient.
• RedisKey
  A key in Redis.
• RedisMap
  A map of (RedisKey, RedisValue) pairs.
• ReplicaConfigreplicas
  Configuration options for replica node connections.
• SScanResult
  The result of a SSCAN operation.
• ScanResult
  The result of a SCAN operation.
• Scripti-scripts
  An interface for caching and running lua scripts.
• SentinelConfigsentinel-client
  Configuration options for sentinel clients.
• Server
  State necessary to identify or connect to a server.
• SlotRange
  A slot range and associated cluster node information from the CLUSTER SLOTS command.
• SlowlogEntry
  The output of an entry in the slow queries log.
• Statsmetrics
  Stats describing a distribution of samples.
• TcpConfig
  TCP configuration options.
• TlsConfigenable-rustls or enable-native-tls
  TLS configuration for a client.
• TracingConfigpartial-tracing
  Configuration options for tracing.
• UnresponsiveConfig
  Configuration options used to detect potentially unresponsive connections.
• Version
  SemVer version as defined by https://semver.org.
• XCapi-streams
  Stream cap arguments for XADD, XTRIM, etc.
• XPendingArgsi-streams
  A struct representing the trailing optional arguments to XPENDING.
• ZRangei-sorted-sets
  A wrapper struct for a range bound in a sorted set command.
• ZScanResult
  The result of a ZSCAN operation.

Enums

• AggregateOptions
  Aggregate options for the zinterstore (and related) commands.
• Aggregatori-time-series
  An aggregation policy to use with certain timeseries commands.
• BackpressurePolicy
  Backpressure policies to apply when the max number of in-flight commands is reached on a connection.
• Blocking
  Describes how the client should respond when a command is sent while the client is in a blocked state from a blocking command.
• BucketTimestampi-time-series
  A BUCKETTIMESTAMP argument in commands such as TS.MRANGE.
• ClientKillFilteri-client
  Filters provided to the CLIENT KILL command.
• ClientKillTypei-client
  The type of clients to close.
• ClientPauseKindi-client
  Filters for the CLIENT PAUSE command.
• ClientReplyFlagi-client
  Arguments for the CLIENT REPLY command.
• ClientState
  The state of the underlying connection to the Redis server.
• ClientUnblockFlag
  Arguments to the CLIENT UNBLOCK command.
• ClusterDiscoveryPolicy
  A policy that determines how clustered clients initially connect to and discover other cluster nodes.
• ClusterFailoverFlagi-cluster
  Options for the CLUSTER FAILOVER command.
• ClusterHash
  A cluster hashing policy.
• ClusterResetFlagi-cluster
  Flags for the CLUSTER RESET command.
• ClusterSetSlotStatei-cluster
  Flags for the CLUSTER SETSLOT command.
• ClusterStatei-cluster
  The state of the cluster from the CLUSTER INFO command.
• ClusterStateChange
  An enum describing the possible ways in which a Redis cluster can change state.
• DuplicatePolicyi-time-series
  The duplicate policy used with certain timeseries commands.
• Encodingi-time-series
  Encoding arguments for certain timeseries commands.
• Expiration
  Expiration options for the set command.
• FnPolicy
  The policy type for the FUNCTION RESTORE command.
• FunctionFlagi-scripts
  Possible flags associated with a Function.
• GeoUniti-geo
  Units for the GEO DIST command.
• GetLabelsi-time-series
  Arguments equivalent to WITHLABELS | SELECTED_LABELS label... in various time series GET functions.
• GetTimestampi-time-series
  A timestamp query used in commands such as TS.MRANGE.
• InfoKind
  Options for the info command.
• LMoveDirectioni-lists
  The direction to move elements in a *LMOVE command.
• ListLocationi-lists
  Location flag for the LINSERT command.
• MessageKind
  The kind of pubsub message.
• Orderingi-sorted-sets
  Ordering options for the ZADD (and related) commands.
• ReconnectErrorcustom-reconnect-errors
  Special errors that can trigger reconnection logic, which can also retry the failing command if possible.
• ReconnectPolicy
  The type of reconnection policy to use. This will apply to every connection used by the client.
• RedisValue
  A value used in a Redis command.
• RedisValueKind
  The kind of value from Redis.
• Reduceri-time-series
  A REDUCER argument in commands such as TS.MRANGE.
• Resp3Frame
  A RESP3 frame that uses Bytes and Str as the underlying buffer type.
• RespVersion
  The RESP version used in the HELLO request.
• ScanType
  The types of values supported by the type command.
• ScriptDebugFlag
  Flags for the SCRIPT DEBUG command.
• SentinelFailureKindsentinel-client
  Arguments for the SENTINEL SIMULATE-FAILURE command.
• ServerConfig
  Connection configuration for the Redis server.
• SetOptions
  Options for the set command.
• ShutdownFlags
  Arguments passed to the SHUTDOWN command.
• SortOrder
  The sort order for redis commands that take or return a sorted list.
• StringOrNumber
  An argument representing a string or number.
• Timestampi-time-series
  A timestamp used in most timeseries commands.
• TlsConnectorenable-rustls or enable-native-tls
  An enum for interacting with various TLS libraries and interfaces.
• TlsHostMappingenable-rustls or enable-native-tls
  An optional enum used to describe how the client should modify or map IP addresses and hostnames in a clustered deployment.
• Togglei-client and i-tracking
  An ON|OFF flag used with client tracking commands.
• XCapKindi-streams
  The MAXLEN or MINID argument for a stream cap.
• XCapTrimi-streams
  Representation for the “=” or “~” operator in XADD, etc.
• XIDi-streams
  Stream ID arguments for XADD, XREAD, etc.
• ZCmpi-sorted-sets
  MIN|MAX arguments for BZMPOP, etc.
• ZRangeBoundi-sorted-sets
  An index, score, lexicographical, or +|-|+inf|-inf range bound for the ZRANGE command.
• ZRangeKindi-sorted-sets
  The type of range interval bound.
• ZSorti-sorted-sets
  Options for the ZRANGE (and related) commands.

Constants

• DEFAULT_JITTER_MS
  The default amount of jitter when waiting to reconnect.

Traits

• FromRedis
  A trait used to convert various forms of RedisValue into different types.
• FromRedisKey
  A trait used to convert RedisKey values to various types.
• HostMappingenable-rustls or enable-native-tls
  A trait used for mapping IP addresses to hostnames when processing the CLUSTER SLOTS response.
• ReplicaFilterreplicas
  An interface used to filter the list of available replica nodes.
• Resolvedns
  A trait that can be used to override DNS resolution logic.
• Scanner
  An interface for interacting with the results of a scan operation.

Type Aliases

• Any
  The ANY flag used on certain GEO commands.
• ConnectHandle
  The result from any of the connect functions showing the error that closed the connection, if any.
• Limit
  A tuple of (offset, count) values for commands that allow paging through results.
• LimitCount
  An argument type equivalent to “[LIMIT count]”.
• MultipleStrings
  Convenience interface for commands that take 1 or more strings.
• MultipleValues
  Convenience interface for commands that take 1 or more values.
• Resp2TimeSeriesValuesi-time-series
  Shorthand for the result of commands such as MGET, MRANGE, etc.
• Resp3TimeSeriesValuesi-time-series
  The RESP3 equivalent of Resp2TimeSeriesValues.
• XReadResponsei-streams
  A generic helper type describing the top level response from XREAD or XREADGROUP.
• XReadValuei-streams
  A generic helper type describing the ID and associated map for each record in a stream.