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Commitaa2e8ff

Browse files
committed
feat: rate limit error chaching
Rate limit error caching to alleviate PATs.
1 parent60fae29 commitaa2e8ff

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8 files changed

+48
-17
lines changed

8 files changed

+48
-17
lines changed

‎api/index.js

Lines changed: 7 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -56,7 +56,7 @@ export default async (req, res) => {
5656
);
5757

5858
constcacheSeconds=clampValue(
59-
parseInt(cache_seconds||CONSTANTS.FOUR_HOURS,10),
59+
parseInt(cache_seconds||CONSTANTS.CARD_CACHE_SECONDS,10),
6060
CONSTANTS.FOUR_HOURS,
6161
CONSTANTS.ONE_DAY,
6262
);
@@ -93,7 +93,12 @@ export default async (req, res) => {
9393
}),
9494
);
9595
}catch(err){
96-
res.setHeader("Cache-Control",`no-cache, no-store, must-revalidate`);// Don't cache error responses.
96+
res.setHeader(
97+
"Cache-Control",
98+
`max-age=${CONSTANTS.ERROR_CACHE_SECONDS/2}, s-maxage=${
99+
CONSTANTS.ERROR_CACHE_SECONDS
100+
}, stale-while-revalidate=${CONSTANTS.ONE_DAY}`,
101+
);// Cache the error response less frequently.
97102
returnres.send(renderError(err.message,err.secondaryMessage));
98103
}
99104
};

‎api/pin.js

Lines changed: 7 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -40,7 +40,7 @@ export default async (req, res) => {
4040
constrepoData=awaitfetchRepo(username,repo);
4141

4242
letcacheSeconds=clampValue(
43-
parseInt(cache_seconds||CONSTANTS.FOUR_HOURS,10),
43+
parseInt(cache_seconds||CONSTANTS.CARD_CACHE_SECONDS,10),
4444
CONSTANTS.FOUR_HOURS,
4545
CONSTANTS.ONE_DAY,
4646
);
@@ -80,7 +80,12 @@ export default async (req, res) => {
8080
}),
8181
);
8282
}catch(err){
83-
res.setHeader("Cache-Control",`no-cache, no-store, must-revalidate`);// Don't cache error responses.
83+
res.setHeader(
84+
"Cache-Control",
85+
`max-age=${CONSTANTS.ERROR_CACHE_SECONDS/2}, s-maxage=${
86+
CONSTANTS.ERROR_CACHE_SECONDS
87+
}, stale-while-revalidate=${CONSTANTS.ONE_DAY}`,
88+
);// Cache the error response less frequently.
8489
returnres.send(renderError(err.message,err.secondaryMessage));
8590
}
8691
};

‎api/top-langs.js

Lines changed: 7 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -48,7 +48,7 @@ export default async (req, res) => {
4848
);
4949

5050
constcacheSeconds=clampValue(
51-
parseInt(cache_seconds||CONSTANTS.FOUR_HOURS,10),
51+
parseInt(cache_seconds||CONSTANTS.CARD_CACHE_SECONDS,10),
5252
CONSTANTS.FOUR_HOURS,
5353
CONSTANTS.ONE_DAY,
5454
);
@@ -80,7 +80,12 @@ export default async (req, res) => {
8080
}),
8181
);
8282
}catch(err){
83-
res.setHeader("Cache-Control",`no-cache, no-store, must-revalidate`);// Don't cache error responses.
83+
res.setHeader(
84+
"Cache-Control",
85+
`max-age=${CONSTANTS.ERROR_CACHE_SECONDS/2}, s-maxage=${
86+
CONSTANTS.ERROR_CACHE_SECONDS
87+
}, stale-while-revalidate=${CONSTANTS.ONE_DAY}`,
88+
);// Cache the error response less frequently.
8489
returnres.send(renderError(err.message,err.secondaryMessage));
8590
}
8691
};

‎api/wakatime.js

Lines changed: 7 additions & 6 deletions
Original file line numberDiff line numberDiff line change
@@ -43,15 +43,11 @@ export default async (req, res) => {
4343
conststats=awaitfetchWakatimeStats({ username, api_domain, range});
4444

4545
letcacheSeconds=clampValue(
46-
parseInt(cache_seconds||CONSTANTS.FOUR_HOURS,10),
46+
parseInt(cache_seconds||CONSTANTS.CARD_CACHE_SECONDS,10),
4747
CONSTANTS.FOUR_HOURS,
4848
CONSTANTS.ONE_DAY,
4949
);
5050

51-
if(!cache_seconds){
52-
cacheSeconds=CONSTANTS.FOUR_HOURS;
53-
}
54-
5551
res.setHeader(
5652
"Cache-Control",
5753
`max-age=${
@@ -80,7 +76,12 @@ export default async (req, res) => {
8076
}),
8177
);
8278
}catch(err){
83-
res.setHeader("Cache-Control",`no-cache, no-store, must-revalidate`);// Don't cache error responses.
79+
res.setHeader(
80+
"Cache-Control",
81+
`max-age=${CONSTANTS.ERROR_CACHE_SECONDS/2}, s-maxage=${
82+
CONSTANTS.ERROR_CACHE_SECONDS
83+
}, stale-while-revalidate=${CONSTANTS.ONE_DAY}`,
84+
);// Cache the error response less frequently.
8485
returnres.send(renderError(err.message,err.secondaryMessage));
8586
}
8687
};

‎src/common/retryer.js

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -60,5 +60,5 @@ const retryer = async (fetcher, variables, retries = 0) => {
6060
}
6161
};
6262

63-
export{retryer};
63+
export{retryer,RETRIES};
6464
exportdefaultretryer;

‎src/common/utils.js

Lines changed: 10 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -293,11 +293,21 @@ const noop = () => {};
293293
constlogger=
294294
process.env.NODE_ENV!=="test" ?console :{log:noop,error:noop};
295295

296+
// Cache settings.
297+
constCARD_CACHE_SECONDS=14400;
298+
constERROR_CACHE_SECONDS=600;
299+
296300
constCONSTANTS={
301+
ONE_MINUTE:60,
302+
FIVE_MINUTES:300,
303+
TEN_MINUTES:600,
304+
FIFTEEN_MINUTES:900,
297305
THIRTY_MINUTES:1800,
298306
TWO_HOURS:7200,
299307
FOUR_HOURS:14400,
300308
ONE_DAY:86400,
309+
CARD_CACHE_SECONDS:CARD_CACHE_SECONDS,
310+
ERROR_CACHE_SECONDS:ERROR_CACHE_SECONDS,
301311
};
302312

303313
constSECONDARY_ERROR_MESSAGES={

‎tests/api.test.js

Lines changed: 7 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -171,13 +171,18 @@ describe("Test /api/", () => {
171171
]);
172172
});
173173

174-
it("shouldnot store cache when error",async()=>{
174+
it("shouldset shorter cache when error",async()=>{
175175
const{ req, res}=faker({},error);
176176
awaitapi(req,res);
177177

178178
expect(res.setHeader.mock.calls).toEqual([
179179
["Content-Type","image/svg+xml"],
180-
["Cache-Control",`no-cache, no-store, must-revalidate`],
180+
[
181+
"Cache-Control",
182+
`max-age=${CONSTANTS.ERROR_CACHE_SECONDS/2}, s-maxage=${
183+
CONSTANTS.ERROR_CACHE_SECONDS
184+
}, stale-while-revalidate=${CONSTANTS.ONE_DAY}`,
185+
],
181186
]);
182187
});
183188

‎tests/retryer.test.js

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -1,6 +1,6 @@
11
import{jest}from"@jest/globals";
22
import"@testing-library/jest-dom";
3-
import{retryer}from"../src/common/retryer.js";
3+
import{retryer,RETRIES}from"../src/common/retryer.js";
44
import{logger}from"../src/common/utils.js";
55

66
constfetcher=jest.fn((variables,token)=>{
@@ -45,7 +45,7 @@ describe("Test Retryer", () => {
4545
try{
4646
res=awaitretryer(fetcherFail,{});
4747
}catch(err){
48-
expect(fetcherFail).toBeCalledTimes(8);
48+
expect(fetcherFail).toBeCalledTimes(RETRIES+1);
4949
expect(err.message).toBe("Maximum retries exceeded");
5050
}
5151
});

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