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Chained or Chain of Responsibility Pattern

Anjali Sharma answered on January 3, 2023 Popularity 3/10 Helpfulness 1/10

answer Chained or Chain of Responsibility Pattern

Chained or Chain of Responsibility Pattern

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Chained or Chain of Responsibility Design Patterns produces a single output which is a combination of multiple chained outputs.
So, if you have three services lined up in a chain, then, the request from the client is first received by Service A. 
Then, this service communicates with the next Service B and collects data.
Finally, the second service communicates with the third service to generate the consolidated output.
All these services use synchronous HTTP request or response for messaging. 
Also, until the request passes through all the services and the respective responses are generated, the client doesn’t get any output.
So, it is always recommended to not to make a long chain, as the client will wait until the chain is completed

One more important aspect which you need to understand, is that the request from Service A to Service B may look different from Service B to Service C. 
Similarly the response from Service C to Service B may look completely different from Service B to Service A.

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Contributed on Jan 03 2023

Anjali Sharma

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