Api gateway duplicate request

1. How do I stop duplicate post requests?
2. What is status code 409 in API gateway?
3. Why is my API getting called multiple times?
4. How do I fix a duplicate listing?
5. How to handle 1,000 requests per second?
6. What is the default limit of 10000 requests per second for API gateway?
7. Is API gateway single point of failure?
8. What is status code 412?
9. When should I use 422 status code?
10. What is a 402 status code?
11. How does REST API handle multiple requests at the same time?
12. How do I use multiple posts in web API?
13. How do you send the same request multiple times?
14. How to handle 1,000 requests per second?
15. How do you handle millions of API requests?
16. Why is duplicate content a big problem?
17. How much duplicate content is acceptable?

How do I stop duplicate post requests?

Using the Idempotency feature is a way of preventing data corruption caused by sending duplicate requests. To send a post request that is "Idempotent safe", simply include an idempotency_key header. The idempotency_key must be unique and should only be used in one request.

What is status code 409 in API gateway?

Handling API Gateway 409 Error: Conflict

The 409 status indicates that your request is trying to do something that conflicts with a resource's current state. A resource could be a record in a DynamoDB table that's integrated with your API.

Why is my API getting called multiple times?

Duplicate API Requests: Possible Reasons

There can be different scenarios where an API is called multiple times to get the data. For example, When a user taps on a button multiple times before it gets disabled. At times, one API response causes another API request to execute.

How do I fix a duplicate listing?

Open Google Maps, then find the location you want to report. Click “Suggest an edit.” Mark the location as “Place is permanently closed or has never existed,” and write “Duplicate” as the reason for the edit. Click “Submit.”

How to handle 1,000 requests per second?

To handle high traffic, you should setup Load Balancer with multiple node/instances. Better to go with Auto Scaling on Cloud server. It will increase the instances as per high load (number or request) and again decrease the instances when there will be low number of requests. Which is cost effective.

What is the default limit of 10000 requests per second for API gateway?

Hence by default, API gateway can have 10,000 (RPS limit) x 29 (timeout limit) = 290,000 open connections. The 10,000 RPS is a soft limit which can be raised if more capacity is required, while the 29 second is a hard limit which cannot be further increased.

Is API gateway single point of failure?

Drawbacks of the API Gateway pattern

Using a microservices API Gateway creates an additional possible single point of failure. An API Gateway can introduce increased response time due to the additional network call.

What is status code 412?

The HyperText Transfer Protocol (HTTP) 412 Precondition Failed client error response code indicates that access to the target resource has been denied.

When should I use 422 status code?

The HyperText Transfer Protocol (HTTP) 422 Unprocessable Entity response status code indicates that the server understands the content type of the request entity, and the syntax of the request entity is correct, but it was unable to process the contained instructions.

What is a 402 status code?

The HTTP 402 Payment Required is a nonstandard response status code that is reserved for future use. This status code was created to enable digital cash or (micro) payment systems and would indicate that the requested content is not available until the client makes a payment.

How does REST API handle multiple requests at the same time?

If you need to make multiple API requests, you can send these API requests concurrently instead of sending them one by one. Sometimes, we need to make multiple API calls at once. For example, let's say we have an array, and we want to make an API request for each element of that array.

How do I use multiple posts in web API?

Open your controller class, in our project its ValuesController. cs >> Copy paste below code, these are two sample post methods with a string input and return parameter – you can write your business logic in it. Similarly, you can add any number of POST, GET, PUT, DELETE methods in one controller.

How do you send the same request multiple times?

The simplest way to run a request multiple times is to use the collection runner built into Postman. The collection runner will also allow you to drive it from a CSV or JSON file if you need to use dynamic data in the requests.

How to handle 1,000 requests per second?

To handle high traffic, you should setup Load Balancer with multiple node/instances. Better to go with Auto Scaling on Cloud server. It will increase the instances as per high load (number or request) and again decrease the instances when there will be low number of requests. Which is cost effective.

How do you handle millions of API requests?

To handle 'millions of request' the system must be deployed on multiple web servers behind a load-balancer that would round robin between each. if the system is hitting a datastore, a second level cache(ehcache, memcache,etc.) should be used to reduce load on the datastore.

Why is duplicate content a big problem?

Product pages with duplicate content may or may not rank. And if they do rank, they may not hold their ranking if Google becomes confused and isn't sure which piece of content to rank. If you have thousands of pages of duplicate content, it may take some time to get everything fixed.

How much duplicate content is acceptable?

How Much Duplicate Content is Acceptable? According to Matt Cutts, 25% to 30% of the web consists of duplicate content. According to him, Google doesn't consider duplicate content as spam, and it doesn't lead your site to be penalized unless it is intended to manipulate the search results.