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| 1 | +import { HttpBindings, ServerType, serve } from '@hono/node-server'; |
| 2 | +import getPort from 'get-port'; |
| 3 | +import { Hono } from 'hono'; |
| 4 | +import { Mockttp, getLocal } from 'mockttp'; |
| 5 | +import { afterEach, beforeEach, describe, expect, it } from 'vitest'; |
| 6 | + |
| 7 | +import { createHonoProxyMiddleware } from './test-kit.js'; |
| 8 | + |
| 9 | +describe('E2E Hono', () => { |
| 10 | + describe('http-proxy-middleware in actual Hono server', () => { |
| 11 | + let app: Hono<{ Bindings: HttpBindings }>; |
| 12 | + |
| 13 | + let mockTargetServer: Mockttp; |
| 14 | + |
| 15 | + beforeEach(async () => { |
| 16 | + mockTargetServer = getLocal(); |
| 17 | + await mockTargetServer.start(); |
| 18 | + }); |
| 19 | + |
| 20 | + afterEach(async () => { |
| 21 | + await mockTargetServer.stop(); |
| 22 | + }); |
| 23 | + |
| 24 | + describe('basic setup, requests to target', () => { |
| 25 | + let server: ServerType; |
| 26 | + let serverPort: number; |
| 27 | + |
| 28 | + beforeEach(async () => { |
| 29 | + app = new Hono<{ Bindings: HttpBindings }>(); |
| 30 | + serverPort = await getPort(); |
| 31 | + |
| 32 | + app.use( |
| 33 | + '/api', |
| 34 | + createHonoProxyMiddleware({ |
| 35 | + target: `http://localhost:${mockTargetServer.port}`, |
| 36 | + pathFilter: '/api', |
| 37 | + }), |
| 38 | + ); |
| 39 | + |
| 40 | + server = serve({ |
| 41 | + fetch: app.fetch, |
| 42 | + port: serverPort, |
| 43 | + }); |
| 44 | + }); |
| 45 | + |
| 46 | + afterEach(() => { |
| 47 | + server.close(); |
| 48 | + }); |
| 49 | + |
| 50 | + it('should have response body: "HELLO WEB"', async () => { |
| 51 | + await mockTargetServer.forGet('/api').thenReply(200, 'HELLO WEB'); |
| 52 | + const response = await fetch(`http://127.0.0.1:${serverPort}/api`); |
| 53 | + expect(response.status).toBe(200); |
| 54 | + await expect(response.text()).resolves.toBe('HELLO WEB'); |
| 55 | + }); |
| 56 | + |
| 57 | + it('should handle connection reset', async () => { |
| 58 | + await mockTargetServer.forGet('/api').thenResetConnection(); |
| 59 | + const response = await fetch(`http://127.0.0.1:${serverPort}/api`); |
| 60 | + expect(response.status).toBe(504); |
| 61 | + await expect(response.text()).resolves.toContain('Error occurred while trying to proxy:'); |
| 62 | + }); |
| 63 | + }); |
| 64 | + |
| 65 | + describe('pathFilter matching', () => { |
| 66 | + let server: ServerType; |
| 67 | + let serverPort: number; |
| 68 | + |
| 69 | + beforeEach(async () => { |
| 70 | + app = new Hono<{ Bindings: HttpBindings }>(); |
| 71 | + serverPort = await getPort(); |
| 72 | + |
| 73 | + app.use( |
| 74 | + createHonoProxyMiddleware({ |
| 75 | + target: `http://localhost:${mockTargetServer.port}`, |
| 76 | + pathFilter: '/api', |
| 77 | + }), |
| 78 | + ); |
| 79 | + |
| 80 | + app.get('/other', (c) => c.text('DOWNSTREAM HANDLER')); |
| 81 | + |
| 82 | + server = serve({ |
| 83 | + fetch: app.fetch, |
| 84 | + port: serverPort, |
| 85 | + }); |
| 86 | + }); |
| 87 | + |
| 88 | + afterEach(() => { |
| 89 | + server.close(); |
| 90 | + }); |
| 91 | + |
| 92 | + it('should proxy requests when request url matches pathFilter', async () => { |
| 93 | + await mockTargetServer.forGet('/api').thenReply(200, 'HELLO API'); |
| 94 | + |
| 95 | + const response = await fetch(`http://127.0.0.1:${serverPort}/api`); |
| 96 | + |
| 97 | + expect(response.status).toBe(200); |
| 98 | + await expect(response.text()).resolves.toBe('HELLO API'); |
| 99 | + }); |
| 100 | + |
| 101 | + it('should not proxy requests when request url does not match pathFilter', async () => { |
| 102 | + const response = await fetch(`http://127.0.0.1:${serverPort}/other`); |
| 103 | + |
| 104 | + expect(response.status).toBe(200); |
| 105 | + await expect(response.text()).resolves.toBe('DOWNSTREAM HANDLER'); |
| 106 | + }); |
| 107 | + }); |
| 108 | + }); |
| 109 | +}); |
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