wasmcloud/cmd/wasmcloudd/handler_invoke.go

package main

import (
	"context"
	"encoding/json"
	"fmt"
	"time"

	"github.com/google/uuid"
	"tulpa.dev/within/wasmcloud/cmd/internal"
	"within.website/ln"
	"within.website/ln/opname"
)

func runHandler(ctx context.Context, hdlr Handler, timeout time.Duration, message []byte) (*internal.ExecResponse, error) {
	ctx = opname.With(ctx, "invoke")
	execID := uuid.New().String()
	er := internal.ExecRequest{
		WASMCID: hdlr.Path,
		Name:    hdlr.Name,
		Data:    message,
		Env: map[string]string{
			"RUN_ID":      execID,
			"MAGIC_CONCH": "yes",
		},
		UUID: execID,
	}

	encData, err := json.Marshal(er)
	if err != nil {
		return nil, fmt.Errorf("can't encode job: %w", err)
	}

	f := ln.F{
		"name":   hdlr.Name,
		"run_id": execID,
	}
	ln.Log(ctx, ln.Info("starting run"), f)
	msg, err := nc.Request(internal.TopicName, encData, timeout)
	if err != nil {
		return nil, fmt.Errorf("can't submit job: %w", err)
	}

	var resp internal.ExecResponse
	err = json.Unmarshal(msg.Data, &resp)
	if err != nil {
		return nil, fmt.Errorf("can't unmarshal response: %w", err)
	}

	return &resp, nil
}