Crate perspective_client 

perspective_client is the client implementation of Perspective, designed to be used from Rust directly, and as a core to perspective-js and perspective-python crates which wrap language-specific bindings for this module.

See also

• perspective-rs for the Rust Client and Server APIs.
• perspective-js for the JavaScript API.
• perspective-python for the Python API.
• perspective-server for Data Binding details.
• perspective-viewer for the WebAssembly <perspective-viewer> Custom Element API.

Modules

config

Options for Table::view, and details about fields like expressions.

utils

Utility functions that are common to the perspective crates.

Structs

Client

An instance of a Client is a connection to a single perspective_server::Server, whether locally in-memory or remote over some transport like a WebSocket.

ColumnWindow

DeleteOptions

Options for Table::delete.

ExprValidationResult

Result of a call to Table::validate_expressions, containing a schema for valid expressions and error messages for invalid ones.

Features

Metadata about what features are supported by the Server to which this Client connects.

OnUpdateData

Rows updated and port ID corresponding to an update batch, provided to the callback argument to View::on_update with the “rows” mode.

OnUpdateOptions

Options for View::on_update.

ProxySession

A Session implementation which tunnels through another Client. @private

ReconnectCallback

The type of the reconnect parameter passed to [Client::handle_error}, and to the callback closure of Client::on_error.

SystemInfo

Metadata about the engine runtime (such as total heap utilization).

Table

Table is Perspective’s columnar data frame, analogous to a Pandas/Polars DataFrame or Apache Arrow, supporting append & in-place updates, removal by index, and update notifications.

TableInitOptions

Options which impact the behavior of Client::table, as well as subsequent calls to Table::update.

UpdateOptions

Options for Table::update.

View

The View struct is Perspective’s query and serialization interface. It represents a query on the Table’s dataset and is always created from an existing Table instance via the Table::view method.

ViewWindow

Options for serializing a window of data from a View.

Enums

OnUpdateMode

The update mode for View::on_update.

TableData

The possible formats of input data which Client::table may take as an argument.

TableReadFormat

The format to interpret data preovided to Client::table.

UpdateData

The possible formats of input data which Table::update may take as an argument.

Traits

ClientHandler

The client-side representation of a connection to a Server.

Session

The server-side representation of a connection to a Client.

Type Aliases

ClientError

ExprValidationError