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import {
type IEither,
type ITraceable,
JsonResponse,
LogLevel,
type Mapper,
Metric,
type PenguenoRequest,
type ServerTrace,
TraceUtil,
} from "@emprespresso/pengueno";
export enum HealthCheckInput {
CHECK,
}
export enum HealthCheckOutput {
YAASQUEEN,
}
const healthCheckMetric = Metric.fromName("Health");
export const HealthCheckActivity = (
check: Mapper<
ITraceable<HealthCheckInput, ServerTrace>,
Promise<IEither<Error, HealthCheckOutput>>
>,
) =>
(req: ITraceable<PenguenoRequest, ServerTrace>) =>
req
.bimap(TraceUtil.withFunctionTrace(HealthCheckActivity))
.bimap(TraceUtil.withMetricTrace(healthCheckMetric))
.flatMap((r) => r.move(HealthCheckInput.CHECK).map(check))
.map(TraceUtil.promiseify((h) => {
const health = h.get();
health.mapBoth((e) => {
h.trace.trace(healthCheckMetric.failure);
h.trace.addTrace(LogLevel.ERROR).trace(`${e}`);
return new JsonResponse(
req,
"oh no, i need to eat more vegetables (。•́︿•̀。)...",
{ status: 500 },
);
}, (_healthy) => {
h.trace.trace(healthCheckMetric.success);
const msg = `think im healthy!! (✿˘◡˘) ready to do work~`;
h.trace.trace(msg);
return new JsonResponse(
req,
msg,
{ status: 200 },
);
});
}));
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