Angular 2 Universal + Akamai

Question

我想看看我是否可以創建基於CDN和角度2通用的堆棧。因此，當用戶導航有CDN以獲取資產時，並且如果用戶第一次訪問將具有Universal提供的完整HTML。

我在想：

客戶< ===> Akamai的< ===>光油< ===>源服務器（與通用的node.js）

這聽起來好？你有沒有嘗試過？ 另外我正在考慮爲整個堆棧添加nginx和ELB。

現在的問題是： - 這個堆棧可以按預期工作嗎？

Answer 1

是的，它可以做到！最大的問題是如何使Angular中任意數量的http請求無效以確定呈現的頁面。使用某種頭部模式來失效可能會有所幫助。

假設你正在使用的官方NG-Express引擎，這樣的服務可以讓你定義從角運行時的反應：

import { RESPONSE } from '@nguniversal/express-engine/tokens' 
import { Inject, Injectable, Optional } from '@angular/core' 
import { Response } from 'express' 

export interface IServerResponseService { 
    getHeader(key: string): string 
    setHeader(key: string, value: string): this 
    setHeaders(dictionary: { [key: string]: string }): this 
    appendHeader(key: string, value: string, delimiter?: string): this 
    setStatus(code: number, message?: string): this 
    setNotFound(message?: string): this 
    setError(message?: string): this 
} 

@Injectable() 
export class ServerResponseService implements IServerResponseService { 

    private response: Response 

    constructor(@Optional() @Inject(RESPONSE) res: any) { 
    this.response = res 
    } 

    getHeader(key: string): string { 
    return this.response.getHeader(key) 
    } 

    setHeader(key: string, value: string): this { 
    if (this.response) 
     this.response.header(key, value) 
    return this 
    } 

    appendHeader(key: string, value: string, delimiter = ','): this { 
    if (this.response) { 
     const current = this.getHeader(key) 
     if (!current) return this.setHeader(key, value) 

     const newValue = [...current.split(delimiter), value] 
     .filter((el, i, a) => i === a.indexOf(el)) 
     .join(delimiter) 

     this.response.header(key, newValue) 
    } 
    return this 
    } 

    setHeaders(dictionary: { [key: string]: string }): this { 
    if (this.response) 
     Object.keys(dictionary).forEach(key => this.setHeader(key, dictionary[key])) 
    return this 
    } 

    setStatus(code: number, message?: string): this { 
    if (this.response) { 
     this.response.statusCode = code 
     if (message) 
     this.response.statusMessage = message 
    } 
    return this 
    } 

    setNotFound(message = 'not found'): this { 
    if (this.response) { 
     this.response.statusCode = 404 
     this.response.statusMessage = message 
    } 
    return this 
    } 

    setError(message = 'internal server error'): this { 
    if (this.response) { 
     this.response.statusCode = 500 
     this.response.statusMessage = message 
    } 
    return this 
    } 
}