/
requestOnWrite.ts
61 lines (56 loc) · 2.01 KB
/
requestOnWrite.ts
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import * as functions from "firebase-functions";
import Firestore, { UptimeRequest } from "./utils/Firestore";
import { createRequest, formatSeconds } from "./utils/helpers";
import { sendMessage } from "./utils/message";
const db = new Firestore();
const requestOnWrite = functions.firestore
.document("uptime/{uptimeId}/requests/{requestId}")
.onCreate(async (requestSnapshot, context) => {
try {
if (!process.env.URL) {
throw new Error("URL not set");
}
const uptimeEntry = await db.getEntry(context.params.uptimeId);
const request = requestSnapshot.data() as UptimeRequest;
if (request.ok && uptimeEntry.initialResponseOk) {
functions.logger.log("is first request of a successful uptime check");
return;
} else if (request.ok) {
functions.logger.log("request successfull after retry");
uptimeEntry.latestCheck = request.started;
if (request.ok) {
const downtimeMillis =
request.started.toMillis() - uptimeEntry.created.toMillis();
uptimeEntry.responseOk = true;
uptimeEntry.downtimeMillis = downtimeMillis;
await db.update(context.params.uptimeId, uptimeEntry);
functions.logger.log(
`Uptime Monitor is UP: ${
request.url
}. It was down for ${formatSeconds(
Math.round(downtimeMillis / 1000)
)}.`
);
await sendMessage(
`Uptime Monitor is UP: ${
request.url
}. It was down for ${formatSeconds(
Math.round(downtimeMillis / 1000)
)}.`
);
}
return;
} else {
functions.logger.log("request failed, create new request after 2 sec");
setTimeout(async () => {
const check = await createRequest();
await db.addRequest(uptimeEntry.id, check);
}, 2000);
}
return;
} catch (e) {
functions.logger.error(e);
return e;
}
});
export default requestOnWrite;