This interface defines the wasmCloud built-in logging interface that comes with each of our supported host runtimes. Actors that use this interface must have the capability contract wasmcloud:builtin:logging in their claims list (wash claims sign --logging).
There are no external implementations for this provider as they are built directly into the host runtime.
Logging at all available levels:
use wasmbus_rpc::actor::prelude::RpcResult;
use wasmcloud_interface_logging::{debug, error, info, warn};
// Note: The function you're logging in _must_ be async. This is due to the
// way our logging macros work and is a known limitation of actor logging
async fn log_to_all() -> RpcResult<()> {
debug!("Watch out for moths");
info!("This is an info level log!");
warn!("Some viewers may find the following log disturbing");
error!("I can't let you do that, Dave");
Ok(())
}import (
"github.com/wasmcloud/actor-tinygo"
httpserver "github.com/wasmcloud/interfaces/httpserver/tinygo"
logging "github.com/wasmcloud/interfaces/logging/tinygo"
)
type Actor struct {
logger *logging.LoggingSender
}
func main() {
me := Actor{
logger: logging.NewProviderLogging(),
}
// The calls to WriteLog require an actor.Context that is
// accessed from any invocation
actor.RegisterHandlers(httpserver.HttpServerHandler(&me))
}
func (e *Actor) HandleRequest(ctx *actor.Context, req httpserver.HttpRequest) (*httpserver.HttpResponse, error) {
_ = e.logger.WriteLog(ctx, logging.LogEntry{Level: "debug", Text: "This is a debug log"})
_ = e.logger.WriteLog(ctx, logging.LogEntry{Level: "info", Text: "This is an info log"})
_ = e.logger.WriteLog(ctx, logging.LogEntry{Level: "warn", Text: "This is a warn log"})
_ = e.logger.WriteLog(ctx, logging.LogEntry{Level: "error", Text: "This is an error log"})
return nil, nil
}