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Merge pull request #11 from Start9Labs/update/catch-error

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add catch error with check for known error
This commit is contained in:
J M
2022-11-15 10:40:36 -07:00
committed by GitHub
parent d741c4da71 c465664a07
commit b1be4948cd
2 changed files with 28 additions and 14 deletions
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39
healthUtil.ts
View File

@@ -1,12 +1,15 @@
import { Effects, ResultType } from "./types.ts"; import { Effects, ResultType } from "./types.ts";
import { error, errorCode, ok } from "./util.ts"; import { error, errorCode, isKnownError, ok } from "./util.ts";
export const checkWebUrl: ( export const checkWebUrl: (
url: string, url: string,
) => (effects: Effects, duration: number) => Promise<ResultType<null | void>> = ) => (effects: Effects, duration: number) => Promise<ResultType<null | void>> =
(url) => { (url) => {
return async (effects, duration) => { return async (effects, duration) => {
let errorValue; let errorValue;
if (errorValue = guardDurationAboveMinimum({ duration, minimumTime: 5000 })) return errorValue; if (
// deno-lint-ignore no-cond-assign
errorValue = guardDurationAboveMinimum({ duration, minimumTime: 5000 })
) return errorValue;
return await effects.fetch(url) return await effects.fetch(url)
.then((_) => ok) .then((_) => ok)
@@ -19,19 +22,27 @@ export const checkWebUrl: (
}; };
}; };
export const runHealthScript = ({command, args}: { command: string, args: string[] }) => async (effects: Effects, _duration: number): Promise<ResultType<null | void>> => { export const runHealthScript =
const res = await effects.runCommand({ command, args }) ({ command, args }: { command: string; args: string[] }) =>
if ('result' in res){ async (
return { result: null } effects: Effects,
} else { _duration: number,
return res ): Promise<ResultType<null | void>> => {
} const res = await effects.runCommand({ command, args });
} if ("result" in res) {
return { result: null };
} else {
return res;
}
};
// Ensure the starting duration is pass a minimum // Ensure the starting duration is pass a minimum
export const guardDurationAboveMinimum = ( export const guardDurationAboveMinimum = (
input: { duration: number; minimumTime: number }, input: { duration: number; minimumTime: number },
) => ) => (input.duration <= input.minimumTime) ? errorCode(60, "Starting") : null;
(input.duration <= input.minimumTime)
? errorCode(60, "Starting") export const catchError = (effects: Effects) => (e: unknown) => {
: null; if (isKnownError(e)) return e;
effects.error(`Health check failed: ${e}`);
return error("Error while running health check");
};

3
util.ts
View File

@@ -21,3 +21,6 @@ export const errorCode = (code: number, error: string) => ({
}); });
export const error = (error: string) => ({ error }); export const error = (error: string) => ({ error });
export const ok = { result: null }; export const ok = { result: null };
export const isKnownError = (e: unknown): e is T.KnownError =>
e instanceof Object && ("error" in e || "error-code" in e);