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More resilient HTTP requests

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Fixed rate limit check for ListenBrainz and Funkwhale. Also retry always
on server side errors.
This commit is contained in:
Philipp Wolfer 2023-11-15 08:40:55 +01:00
parent 240351dc3e
commit 4e9f50b6b6
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GPG key ID: 8FDF744D4919943B
3 changed files with 28 additions and 12 deletions
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14
backends/listenbrainz/client.go
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@ -34,6 +34,7 @@ const listenBrainzBaseURL = "https://api.listenbrainz.org/1/"
const DefaultItemsPerGet = 25
const MaxItemsPerGet = 1000
const DefaultRateLimitWaitSeconds = 5
type Client struct {
HttpClient *resty.Client
@ -46,18 +47,25 @@ func NewClient(token string) Client {
client.SetAuthScheme("Token")
client.SetAuthToken(token)
client.SetHeader("Accept", "application/json")
client.SetHeader("Content-Type", "application/json")
// Handle rate limiting (see https://listenbrainz.readthedocs.io/en/latest/users/api/index.html#rate-limiting)
client.SetRetryCount(5)
client.AddRetryCondition(
func(r *resty.Response, err error) bool {
return r.StatusCode() == http.StatusTooManyRequests
code := r.StatusCode()
return code == http.StatusTooManyRequests || code >= http.StatusInternalServerError
},
)
client.SetRetryMaxWaitTime(time.Duration(1 * time.Minute))
client.SetRetryAfter(func(client *resty.Client, resp *resty.Response) (time.Duration, error) {
retryAfter, err := strconv.Atoi(resp.Header().Get("Retry-After"))
var err error
var retryAfter int = DefaultRateLimitWaitSeconds
if resp.StatusCode() == http.StatusTooManyRequests {
retryAfter, err = strconv.Atoi(resp.Header().Get("X-RateLimit-Reset-In"))
if err != nil {
retryAfter = DefaultRateLimitWaitSeconds
}
}
return time.Duration(retryAfter * int(time.Second)), err
})