Merge pull request #92 from /issues/85-request-throttling

React to request throttling (answer 429)
uploadcare · Nov 8, 2023 · 9dc20a4 · 9dc20a4
2 parents bcd0926 + 033ffce
commit 9dc20a4
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -12,6 +12,7 @@
     the API query parameters.
   - Added support for converting multipage into a group of files.
   - Added `default_effects` field in `UploadcareFile`.
+  - Added react to request throttling (429 code response).
 - Widget:
   - SocialApi doesn't use `GET /sources` method anymore.
 - Project:

diff --git a/library/src/main/java/com/uploadcare/android/library/api/RequestHelper.kt b/library/src/main/java/com/uploadcare/android/library/api/RequestHelper.kt
@@ -14,6 +14,7 @@ import com.uploadcare.android.library.data.PageData
 import com.uploadcare.android.library.exceptions.UploadcareApiException
 import com.uploadcare.android.library.exceptions.UploadcareAuthenticationException
 import com.uploadcare.android.library.exceptions.UploadcareInvalidRequestException
+import com.uploadcare.android.library.exceptions.UploadcareRequestThrottlingException
 import com.uploadcare.android.library.urls.UrlParameter
 import com.uploadcare.android.library.urls.UrlUtils.Companion.trustedBuild
 import com.uploadcare.android.library.urls.Urls
@@ -603,6 +604,9 @@ class RequestHelper(private val client: UploadcareClient) {
             throw UploadcareAuthenticationException("$response")
         } else if (statusCode == 400 || statusCode == 404) {
             throw UploadcareInvalidRequestException("$response")
+        } else if (statusCode == 429) {
+            val retryTimeout = response.header("Retry-After")?.toLong() ?: 0
+            throw UploadcareRequestThrottlingException("$response", retryTimeout)
         } else {
             throw UploadcareApiException(
                     "Unknown exception during an API call, response: $response")

diff --git a/library/src/main/java/com/uploadcare/android/library/exceptions/Exceptions.kt b/library/src/main/java/com/uploadcare/android/library/exceptions/Exceptions.kt
@@ -31,4 +31,9 @@ class UploadFailureException : UploadcareApiException {
     constructor(message: String, cause: Throwable) : super(message, cause)
 }
 
+class UploadcareRequestThrottlingException(
+    message: String?,
+    val retryTimeout: Long
+) : UploadcareApiException(message)
+
 internal class UploadPausedException(message: String?): UploadcareApiException(message)