Foxglove

The official Foxglove SDK.

This crate provides support for integrating with the Foxglove platform. It can be used to log events to local MCAP files or a local visualization server that communicates with the Foxglove app.

Overview

To record messages, you need at least one sink and at least one channel.

A "sink" is a destination for logged messages — either an MCAP file or a live visualization server. Use McapWriter::new() to register a new MCAP sink. Use WebSocketServer::new to create a new live visualization server.

A "channel" gives a way to log related messages which have the same schema. Each channel is instantiated with a unique topic name.

The SDK provides structs for well-known schemas. These can be used in conjunction with TypedChannel for type-safe logging, which ensures at compile time that messages logged to a channel all share a common schema.

You can also define your own custom data types by implementing the Encode trait. This allows you to log arbitrary custom data types. Notably, the Encode trait is automatically implemented for types that implement serde::Serialize and schemars::JsonSchema. This makes it easy to define new custom messages.

Get Started

For more information and examples, see docs.rs.