cic-chain-events/internal/api/stats.go

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package api
import (
"net/http"
"github.com/alitto/pond"
"github.com/grassrootseconomics/cic-chain-events/internal/syncer"
"github.com/labstack/echo/v4"
)
type statsResponse struct {
HeadCursor uint64 `json:"headCursor"`
LowerBound uint64 `json:"lowerBound"`
MissingBlocks uint64 `json:"missingBlocks"`
WorkerQueueSize uint64 `json:"workerQueueSize"`
WorkerCount int `json:"workerCount"`
WorkerSuccessfulTasks uint64 `json:"workerSuccessfulTasks"`
WorkerFailedTasks uint64 `json:"workerFailedTasks"`
}
func StatsHandler(
syncerStats *syncer.Stats,
poolStats *pond.WorkerPool,
) func(echo.Context) error {
return func(ctx echo.Context) error {
headCursor := syncerStats.GetHeadCursor()
lowerBound := syncerStats.GetLowerBound()
stats := statsResponse{
HeadCursor: headCursor,
LowerBound: lowerBound,
WorkerCount: poolStats.RunningWorkers(),
WorkerQueueSize: poolStats.WaitingTasks(),
WorkerSuccessfulTasks: poolStats.SuccessfulTasks(),
WorkerFailedTasks: poolStats.FailedTasks(),
}
if headCursor-lowerBound < 10 {
stats.MissingBlocks = 0
} else {
stats.MissingBlocks = headCursor - lowerBound
}
return ctx.JSON(http.StatusOK, okResp{
Ok: true,
Data: stats,
})
}
}