تدريب Shadowing: What is API Gateway? - تعلم التحدث بالإنجليزية عبر الفيديو
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What does an API Gateway do?
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Why do we need it?
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Let's take a look.
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An API Gateway is a single point of entry to the clients of an application.
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It sits between a client and a collection of backend services for the application.
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An API Gateway typically provides several important functions.
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Some common ones are authentication and security policy enforcement, load balancing and circuit breaking,
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protocol translation and service discovery, monitoring, logging, analytics and billing, and finally caching.
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Now let's examine a typical flow of a client request through the API gateway and onto the backend service.
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Step one, the client sends a request to the API gateway.
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The request is typically HTTP based.
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It could be REST, GraphQL, or some other higher level abstractions.
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Step 2.
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The API gateway validates the HTTP request.
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Step 3.
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The API gateway checks the caller's IP address and other HTTP headers against its allow list and deny list.
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It could also perform basic rate limit checks against attributes such as IP address and HTTP headers.
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For example, it could reject requests from an IP address exceeding a certain rate.
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Step 4.
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The API Gateway passes the request to an identity provider for authentication and authorization.
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This in itself is a complicated topic.
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The API Gateway receives an authenticated session back from the provider with the scope of what the request is allowed to do.
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Step 5.
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A high-level rate limit check is applied against the authenticated session.
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If it is over the limit, the request is rejected at this point.
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Step 6 and 7.
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With the help of a service discovery component, the API Gateway locates the appropriate backend service to handle the request by path matching.
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Step 8.
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The API Gateway transforms the request into the appropriate protocol and sends the transform request to the backend service.
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An example protocol could be gRPC.
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When the response comes back from the backend service, the API Gateway transforms the response back to the public-facing protocol and returns the to respond to the client.
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A proper API Gateway also provides other critical services.
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For example, an API Gateway should track errors and provide circuit breaking functionality to protect the services from overloading.
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An API Gateway should also provide logging, monitoring, and analytic services for operational observability.
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An API Gateway is a critical piece of the infrastructure.
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It should be deployed to multiple regions to improve availability.
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For many cloud provider offerings, the API Gateway is deployed across the world close to the clients.
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أهداف المحادثة لهذا المقطع
يستهدف هذا المقطع تعزيز مهارات التواصل الفعالة في الإنجليزية من خلال فهم دور API Gateway. يعتبر هذا المفهوم محورياً في تطوير البرمجيات الحديثة، ولذلك يهدف الفيديو إلى تعليم المشاهدين كيفية التعامل مع هذا العنصر الحيوي في بيئة العمل.
قائمة العبارات المفيدة
- نقطة دخول واحدة - "single point of entry"
- سياسة الأمان - "security policy"
- توازن الحمل - "load balancing"
- اكتشاف الخدمة - "service discovery"
- تحليل البيانات - "analytics"
- تسجيل الأخطاء - "logging"
تحسين نقاط الضعف لديك
يساعدك هذا الفيديو في تحسين نطقك وإيقاعك عند التحدث باللغة الإنجليزية. من خلال ممارسة المحادثة الإنجليزية، يمكنك تحسين قدرتك على التعبير عن الأفكار بشكل أوضح. التركيز على كيفية تقديم الطلبات، مثل "The client sends a request" أو "The request is validated"، سيعزز قدرتك على الانغماس في اللغة.
بالإضافة إلى ذلك، يمكنك الاستفادة من مفهوم "shadowspeak" لتحسين مهاراتك في الانصات والتحدث. تكرار العبارات الرئيسية من الحوار سيساعدك على تطوير الـ shadow speech الخاص بك، مما يزيد من طلاقتك وثقتك في استخدام اللغة.
تذكر أن ممارسة المحادثة الإنجليزية بانتظام، ومراجعة هذه العبارات، سيمكنك من تعزيز مهاراتك بشكل ملحوظ. لا تتردد في إعادة مشاهدة الفيديو، وتكرار العبارات المهمة حتى تشعر بالراحة والثقة عند استخدامها في محادثاتك اليومية.
ما هي تقنية التظليل الصوتي؟
التظليل الصوتي (Shadowing) تقنية تعلم لغة مدعومة علمياً، طُورت أصلاً لتدريب المترجمين الفوريين المحترفين. الطريقة بسيطة لكنها قوية: تستمع لصوت إنجليزي أصلي وتكرره فوراً بصوت عالٍ — كظل يتبع المتحدث بتأخير 1-2 ثانية. تُظهر الأبحاث تحسناً كبيراً في دقة النطق والتنغيم والإيقاع وربط الأصوات والاستماع والطلاقة.