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Exponential backoff on waiting between 429 Errors in connection.js

This commit is contained in:
Dafydd Durairaj 2020-08-24 14:20:45 -04:00 committed by Michael Vines
parent dbd079f54c
commit 4593c3a172
1 changed files with 10 additions and 8 deletions
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18
web3.js/src/connection.js
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@ -509,21 +509,23 @@ function createRpcRequest(url): RpcRequest {
try {
let too_many_requests_retries = 5;
let res = {};
let waitTime = 500;
for (;;) {
res = await fetch(url, options);
if (
res.status !== 429 /* Too many requests */ ||
too_many_requests_retries === 0
res.status !== 429 /* Too many requests */
) {
break;
}
console.log(
`Server responded with ${res.status} ${res.statusText}. Retrying after brief delay...`,
);
await sleep(500);
too_many_requests_retries -= 1;
if (too_many_requests_retries === 0) {
break;
}
console.log(
`Server responded with ${res.status} ${res.statusText}. Retrying after ${waitTime}ms delay...`,
);
await sleep(waitTime);
waitTime *= 2;
}
const text = await res.text();