Skip to main content

GraphQL based solution architecture patterns

GraphQL is becoming popular in the tech industry as a replacement for REST. It really carries out significant advantages over existing mechanisms for the client-server type of communications.
In simple terms, GraphQL allows the client to choose which information it wants rather than receiving all the data which is available for the API. This is similar to a database query where we request only the required information. That is why it is called as GraphQL. We can do this easily with databases and data services runtime. But if you think about implementing the same capability for a REST API, you have to create so many different resources and the client has to call each and every one of these resources and handle the orchestration logic at the client-side. Otherwise, the API server has to do the heavy-lifting of orchestration. But this is not scalable with the changing demands from customers and the business.
The below medium post discusses possible solution architecture patterns that can be built with GraphQL.

Comments

Post a Comment

Popular posts from this blog

How to protect your APIs with self contained access token (JWT) using WSO2 API Manager and WSO2 Identity Server

In a typical enterprise information system, there is a high chance that people will use different types of systems built by different vendors to implement certain types of functionalities. The APIs might be hosted in an API Manager developed by vendor A and the user management can be implemented using a different vendor (vendor B). In this type of a situation, one system will not be able to directly contact the other system but they want to use both systems in tandem. Self-contained access tokens are used in these types of situations where applications can get the token from one system and use that in another system to access protected resources. In this scenario, the second system does not need to make a contact to the first system over the network to validate the user information since the token is self-contained and it has relevant details about the user. This will improve the token processing time significantly since it completely removes the network interaction. The below fig...

WSO2 ESB creating a response for a "GET" request

When you are creating REST APIs with WSO2 ESB, you may need to send some response message back to the user when something goes wrong. In this kind of scenario, you can create a payload inside the ESB and send it back. For doing this, you can use the below configuration. <api xmlns=" http://ws.apache.org/ ns/synapse " name="LoopBackProxy" context="/loopback">    <resource methods="POST GET">       <inSequence>          <property name="NO_ENTITY_BODY" scope="axis2" action="remove"></property>          <log level="full"></log>          <payloadFactory media-type="xml">             <format>                <m:messageBeforeLoopBack xmlns:m=" http://services...

How to configure timeouts in WSO2 ESB to get rid of client timeout errors

WSO2 ESB has defined some configuration parameters which controls the timeout of a particular request which is going out of ESB. In a particular  scneario, your client sends a request to ESB, and then ESB sends a request to another endpoint to serve the request. CLIENT->WSO2 ESB->BACKEND The reason for clients getting timeout is that ESB timeout is larger than client's timeout. This can be solved by either increasing the timeout at client side or by decreasing the timeout in ESB side. In any of the case, you can control the timeout in ESB using the below properties. 1) Global timeout defined in synapse.properties (ESB_HOME\repository\conf\) file. This will decide the maximum time that a callback is waiting in the ESB for a response for a particular request. If ESB does not get any response from Back End, it will drop the message and clears out the call back. This is a global level parameter which affects all the endpoints configured in ESB. synapse.global_timeout_inte...