Remove unused functionality in redundancy

packages/api-redundancy/src/config.ts

@@ -1,24 +1,3 @@
-/**
- * Callback for "timeout" configuration property.
- * Returns number of milliseconds to wait before failing query, while there are pending resources.
- */
-export interface TimeoutCallback {
-	(
-		startTime: number // Start time
-	): number;
-}
-
-/**
- * Callback for "rotate" configuration property.
- * Returns number of milliseconds to wait before trying next resource.
- */
-export interface RotationTimeoutCallback {
-	(
-		queriesSent: number, // Number of queries sent, starts with 1 for timeout after first resource
-		startTime: number // Query start time
-	): number;
-}
-
 /**
  * Resource to rotate (usually hostname or partial URL)
  */
@@ -30,8 +9,8 @@ export type RedundancyResource = string;
 export interface RedundancyConfig {
 	resources: RedundancyResource[]; // Resources to rotate
 	index: number; // Start index
-	timeout: number | TimeoutCallback; // Timeout for error (full timeout = timeout + resources.length * rotate)
-	rotate: number | RotationTimeoutCallback; // Timeout for one query
+	timeout: number; // Timeout for error (full timeout = timeout + resources.length * rotate)
+	rotate: number; // Timeout for one query
 	random: boolean; // True if order should be randomised
 	dataAfterTimeout: boolean; // True if data can be sent after timeout
 }

packages/api-redundancy/src/index.ts

@@ -117,10 +117,6 @@ export function initRedundancy(cfg: Partial<RedundancyConfig>): Redundancy {
 				if (doneCallback) {
 					doneCallback(data, error);
 				}
-			},
-			(newIndex) => {
-				// Update start index
-				config.index = newIndex;
 			}
 		);
 		queries.push(query);

packages/api-redundancy/src/query.ts

@@ -76,8 +76,7 @@ export function sendQuery(
 	config: RedundancyConfig,
 	payload: unknown,
 	query: QueryModuleCallback,
-	done?: QueryDoneCallback,
-	success?: QueryUpdateIndexCallback
+	done?: QueryDoneCallback
 ): GetQueryStatus {
 	// Get number of resources
 	const resourcesCount = config.resources.length;
@@ -270,11 +269,11 @@ export function sendQuery(
 		resetTimer();
 		clearQueue();
 
-		// Update index in Redundancy
-		if (success && !config.random) {
+		// Update index in configuration
+		if (!config.random) {
 			const index = config.resources.indexOf(item.resource);
 			if (index !== -1 && index !== config.index) {
-				success(index);
+				config.index = index;
 			}
 		}
 
@@ -302,22 +301,16 @@ export function sendQuery(
 		if (resource === void 0) {
 			// Nothing to execute: wait for final timeout before failing
 			if (queue.length) {
-				const timeout: number =
-					typeof config.timeout === 'function'
-						? config.timeout(startTime)
-						: config.timeout;
-				if (timeout) {
-					// Last timeout before failing to allow late response
-					timer = setTimeout(() => {
-						resetTimer();
-						if (status === 'pending') {
-							// Clear queue
-							clearQueue();
-							failQuery();
-						}
-					}, timeout);
-					return;
-				}
+				// Last timeout before failing to allow late response
+				timer = setTimeout(() => {
+					resetTimer();
+					if (status === 'pending') {
+						// Clear queue
+						clearQueue();
+						failQuery();
+					}
+				}, config.timeout);
+				return;
 			}
 
 			// Fail
@@ -341,14 +334,8 @@ export function sendQuery(
 		// Bump next index
 		queriesSent++;
 
-		// Get timeout for next item
-		const timeout: number =
-			typeof config.rotate === 'function'
-				? config.rotate(queriesSent, startTime)
-				: config.rotate;
-
 		// Create timer
-		timer = setTimeout(execNext, timeout);
+		timer = setTimeout(execNext, config.rotate);
 
 		// Execute it
 		query(resource, payload, item);

packages/api-redundancy/tests/multiple-resources-test.ts

@@ -68,9 +68,6 @@ describe('Multiple resources', () => {
 				expect(diff).toBeLessThan(50);
 
 				done();
-			},
-			() => {
-				done('This should not have been called');
 			}
 		);
 
@@ -101,7 +98,6 @@ describe('Multiple resources', () => {
 		const startTime = Date.now();
 		let sentQuery = 0;
 		let itemAborted = false;
-		let parentUpdated = false;
 
 		// Send query
 		const getStatus = sendQuery(
@@ -174,20 +170,12 @@ describe('Multiple resources', () => {
 				expect(status.queriesSent).toEqual(2);
 				expect(status.queriesPending).toEqual(0);
 
-				// Parent should have been updated
-				expect(parentUpdated).toEqual(true);
-
 				// Delay between first and second queries
 				const diff = Date.now() - startTime;
 				expect(diff).toBeGreaterThan(50);
 				expect(diff).toBeLessThan(150);
 
 				done();
-			},
-			(newIndex) => {
-				// Start index should be updated to 1
-				expect(newIndex).toEqual(1);
-				parentUpdated = true;
 			}
 		);
 
@@ -300,9 +288,6 @@ describe('Multiple resources', () => {
 				expect(diff).toBeLessThan(120);
 
 				done();
-			},
-			() => {
-				done('This should have never been called');
 			}
 		);
 
@@ -385,9 +370,6 @@ describe('Multiple resources', () => {
 				expect(diff).toBeLessThan(120);
 
 				done();
-			},
-			() => {
-				done('This should have never been called');
 			}
 		);
 
@@ -448,9 +430,6 @@ describe('Multiple resources', () => {
 				expect(diff).toBeLessThan(170);
 
 				done();
-			},
-			() => {
-				done('This should have never been called');
 			}
 		);