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feat: Add idempotency feature to detect duplicate requests due to network conditions #1190

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feat: Add idempotency feature to detect duplicate requests due to network conditions #1190

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a1454eb
Idempotent Requests Implementation
Mar 16, 2023
039d197
rewrite idempotency logic
Mar 17, 2023
76673eb
Merge branch 'master' into idempotent-requests
mtrezza Jun 11, 2024
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2 changes: 2 additions & 0 deletions parse/src/main/java/com/parse/ParseException.java
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Original file line number Diff line number Diff line change
Expand Up @@ -102,6 +102,8 @@ public class ParseException extends Exception {
public static final int FILE_DELETE_ERROR = 153;
/** Error code indicating that the application has exceeded its request limit. */
public static final int REQUEST_LIMIT_EXCEEDED = 155;
/** Error code indicating that the request was a duplicate and has been discarded due to idempotency rules. */
public static final int DUPLICATE_REQUEST = 159;
/** Error code indicating that the provided event name is invalid. */
public static final int INVALID_EVENT_NAME = 160;
/** Error code indicating that the username is missing or empty. */
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5 changes: 5 additions & 0 deletions parse/src/main/java/com/parse/ParseRESTCommand.java
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Expand Up @@ -20,6 +20,8 @@
import java.util.Collections;
import java.util.Iterator;
import java.util.Map;
import java.util.UUID;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
Expand All @@ -35,6 +37,7 @@ class ParseRESTCommand extends ParseRequest<JSONObject> {
/* package */ static final String HEADER_OS_VERSION = "X-Parse-OS-Version";

/* package */ static final String HEADER_INSTALLATION_ID = "X-Parse-Installation-Id";
/* package */ static final String HEADER_REQUEST_ID = "X-Parse-Request-Id";
/* package */ static final String USER_AGENT = "User-Agent";
private static final String HEADER_SESSION_TOKEN = "X-Parse-Session-Token";
private static final String HEADER_MASTER_KEY = "X-Parse-Master-Key";
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Expand All @@ -49,6 +52,7 @@ class ParseRESTCommand extends ParseRequest<JSONObject> {
/* package */ String httpPath;
private String installationId;
private String operationSetUUID;
private final String requestId = UUID.randomUUID().toString();
private String localId;

public ParseRESTCommand(
Expand Down Expand Up @@ -215,6 +219,7 @@ protected void addAdditionalHeaders(ParseHttpRequest.Builder requestBuilder) {
if (masterKey != null) {
requestBuilder.addHeader(HEADER_MASTER_KEY, masterKey);
}
requestBuilder.addHeader(HEADER_REQUEST_ID, requestId);
}

@Override
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22 changes: 11 additions & 11 deletions parse/src/test/java/com/parse/ParseRESTUserCommandTest.java
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Expand Up @@ -55,7 +55,7 @@ public void testGetCurrentUserCommand() {
@Test
public void testLogInUserCommand() throws Exception {
ParseRESTUserCommand command =
ParseRESTUserCommand.logInUserCommand("userName", "password", true);
ParseRESTUserCommand.logInUserCommand("userName", "password", true);

assertEquals("login", command.httpPath);
assertEquals(ParseHttpRequest.Method.GET, command.method);
Expand All @@ -68,7 +68,7 @@ public void testLogInUserCommand() throws Exception {
@Test
public void testResetPasswordResetCommand() throws Exception {
ParseRESTUserCommand command =
ParseRESTUserCommand.resetPasswordResetCommand("test@parse.com");
ParseRESTUserCommand.resetPasswordResetCommand("test@parse.com");

assertEquals("requestPasswordReset", command.httpPath);
assertEquals(ParseHttpRequest.Method.POST, command.method);
Expand All @@ -82,7 +82,7 @@ public void testSignUpUserCommand() throws Exception {
JSONObject parameters = new JSONObject();
parameters.put("key", "value");
ParseRESTUserCommand command =
ParseRESTUserCommand.signUpUserCommand(parameters, "sessionToken", true);
ParseRESTUserCommand.signUpUserCommand(parameters, "sessionToken", true);

assertEquals("users", command.httpPath);
assertEquals(ParseHttpRequest.Method.POST, command.method);
Expand All @@ -96,7 +96,7 @@ public void testServiceLogInUserCommandWithParameters() throws Exception {
JSONObject parameters = new JSONObject();
parameters.put("key", "value");
ParseRESTUserCommand command =
ParseRESTUserCommand.serviceLogInUserCommand(parameters, "sessionToken", true);
ParseRESTUserCommand.serviceLogInUserCommand(parameters, "sessionToken", true);

assertEquals("users", command.httpPath);
assertEquals(ParseHttpRequest.Method.POST, command.method);
Expand All @@ -110,7 +110,7 @@ public void testServiceLogInUserCommandWithAuthType() throws Exception {
Map<String, String> facebookAuthData = new HashMap<>();
facebookAuthData.put("token", "test");
ParseRESTUserCommand command =
ParseRESTUserCommand.serviceLogInUserCommand("facebook", facebookAuthData, true);
ParseRESTUserCommand.serviceLogInUserCommand("facebook", facebookAuthData, true);

assertEquals("users", command.httpPath);
assertEquals(ParseHttpRequest.Method.POST, command.method);
Expand All @@ -132,7 +132,7 @@ public void testAddAdditionalHeaders() throws Exception {
JSONObject parameters = new JSONObject();
parameters.put("key", "value");
ParseRESTUserCommand command =
ParseRESTUserCommand.signUpUserCommand(parameters, "sessionToken", true);
ParseRESTUserCommand.signUpUserCommand(parameters, "sessionToken", true);

ParseHttpRequest.Builder requestBuilder = new ParseHttpRequest.Builder();
command.addAdditionalHeaders(requestBuilder);
Expand All @@ -153,11 +153,11 @@ public void testOnResponseAsync() {
int statusCode = 200;

ParseHttpResponse response =
new ParseHttpResponse.Builder()
.setContent(new ByteArrayInputStream(content.getBytes()))
.setContentType(contentType)
.setStatusCode(statusCode)
.build();
new ParseHttpResponse.Builder()
.setContent(new ByteArrayInputStream(content.getBytes()))
.setContentType(contentType)
.setStatusCode(statusCode)
.build();
command.onResponseAsync(response, null);

assertEquals(200, command.getStatusCode());
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24 changes: 24 additions & 0 deletions parse/src/test/java/com/parse/ParseRequestTest.java
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Expand Up @@ -10,8 +10,10 @@

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.ArgumentMatchers.argThat;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
Expand All @@ -24,8 +26,11 @@
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.IOException;
import java.net.URL;
import java.util.LinkedList;
import java.util.List;
import java.util.concurrent.atomic.AtomicReference;

import org.junit.After;
import org.junit.AfterClass;
import org.junit.Before;
Expand Down Expand Up @@ -121,6 +126,25 @@ public void testDownloadProgress() throws Exception {
assertProgressCompletedSuccessfully(downloadProgressCallback);
}

@Test
public void testIdempotencyLogic() throws Exception {
ParseHttpClient mockHttpClient = mock(ParseHttpClient.class);
AtomicReference<String> requestIdAtomicReference = new AtomicReference<>();
when(mockHttpClient.execute(argThat(argument -> {
assertNotNull(argument.getHeader(ParseRESTCommand.HEADER_REQUEST_ID));
if (requestIdAtomicReference.get() == null) requestIdAtomicReference.set(argument.getHeader(ParseRESTCommand.HEADER_REQUEST_ID));
assertEquals(argument.getHeader(ParseRESTCommand.HEADER_REQUEST_ID), requestIdAtomicReference.get());
return true;
}))).thenThrow(new IOException());

ParseRESTCommand.server = new URL("http://parse.com");
ParseRESTCommand command = new ParseRESTCommand.Builder().build();
Task<Void> task = command.executeAsync(mockHttpClient).makeVoid();
task.waitForCompletion();

verify(mockHttpClient, times(5)).execute(any(ParseHttpRequest.class));
}

private static class TestProgressCallback implements ProgressCallback {
final List<Integer> history = new LinkedList<>();

Expand Down
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