fix: set session as gracefully closing on goaway frame

source/agent.js

@@ -1,7 +1,7 @@
 'use strict';
 // See https://github.com/facebook/jest/issues/2549
 // eslint-disable-next-line node/prefer-global/url
-const {URL} = require('url');
+const { URL } = require('url');
 const EventEmitter = require('events');
 const tls = require('tls');
 const http2 = require('http2');
@@ -142,7 +142,7 @@ const gracefullyClose = session => {
 };
 
 class Agent extends EventEmitter {
-	constructor({timeout = 0, maxSessions = Number.POSITIVE_INFINITY, maxEmptySessions = 10, maxCachedTlsSessions = 100} = {}) {
+	constructor({ timeout = 0, maxSessions = Number.POSITIVE_INFINITY, maxEmptySessions = 10, maxCachedTlsSessions = 100 } = {}) {
 		super();
 
 		// SESSIONS[NORMALIZED_OPTIONS] = [];
@@ -179,7 +179,7 @@ class Agent extends EventEmitter {
 		};
 
 		// Reusing TLS sessions increases performance.
-		this.tlsSessionCache = new QuickLRU({maxSize: maxCachedTlsSessions});
+		this.tlsSessionCache = new QuickLRU({ maxSize: maxCachedTlsSessions });
 	}
 
 	get protocol() {
@@ -256,7 +256,7 @@ class Agent extends EventEmitter {
 				// They will be executed at a different time.
 				resolve();
 			} else {
-				listeners = [{resolve, reject}];
+				listeners = [{ resolve, reject }];
 			}
 
 			try {
@@ -269,8 +269,8 @@ class Agent extends EventEmitter {
 
 				if (options) {
 					// Validate servername
-					const {servername} = options;
-					const {hostname} = origin;
+					const { servername } = options;
+					const { hostname } = origin;
 					if (servername && hostname !== servername) {
 						throw new Error(`Origin ${hostname} differs from servername ${servername}`);
 					}
@@ -383,7 +383,7 @@ class Agent extends EventEmitter {
 				let socket;
 
 				try {
-					const computedOptions = {...options};
+					const computedOptions = { ...options };
 
 					if (computedOptions.settings === undefined) {
 						computedOptions.settings = this.settings;
@@ -405,7 +405,7 @@ class Agent extends EventEmitter {
 
 					// Node.js return https://false:443 instead of https://1.1.1.1:443
 					const getOriginSet = () => {
-						const {socket} = session;
+						const { socket } = session;
 
 						let originSet;
 						if (socket.servername === false) {
@@ -440,6 +440,12 @@ class Agent extends EventEmitter {
 						session.destroy();
 					});
 
+					session.once('goaway', () => {
+						// Prevent session from being used for new requests.
+						// The session will eventually emit either an 'error' or 'close' event.
+						session[kGracefullyClosing] = true;
+					});
+
 					session.once('close', () => {
 						this._sessionCount--;
 
@@ -485,7 +491,7 @@ class Agent extends EventEmitter {
 							const origin = originSet[index];
 
 							if (origin in queue) {
-								const {listeners, completed} = queue[origin];
+								const { listeners, completed } = queue[origin];
 
 								let index = 0;
 
@@ -724,7 +730,7 @@ class Agent extends EventEmitter {
 	closeEmptySessions(maxCount = Number.POSITIVE_INFINITY) {
 		let closedCount = 0;
 
-		const {sessions} = this;
+		const { sessions } = this;
 
 		// eslint-disable-next-line guard-for-in
 		for (const key in sessions) {
@@ -748,7 +754,7 @@ class Agent extends EventEmitter {
 	}
 
 	destroy(reason) {
-		const {sessions, queue} = this;
+		const { sessions, queue } = this;
 
 		// eslint-disable-next-line guard-for-in
 		for (const key in sessions) {