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Writing REST APIs – CREATE/POST – Best Practices – Part II

This is my second post on Writing REST APIs. Today the focus is on POST HTTP method. Basically POST method is used for create a resource. Sample Request : POST /users { "users" : [{ "firstName" : "Tom", "lastName" : "Cruise" },{ "firstName" : "Tom", "lastName" : "Hardy" }] } Sample Response : { "statusCode" :… Read More »

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Elasticsearch – Apply Nested Filter on Nested (Inner) Aggregation

           The following query can be used to apply filter on nested (inner) aggregation. In our example aggregationName2 is the nested aggregation. The filter (bold content) in the input JSON will be applied only for the aggregation aggregationName2. aggregationName2 takes in the output of aggregationName1, then applies the filter which is then processed by aggregationName2… Read More »

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Oculus Rift – nxtGen Virtual Reality Headset

              Computers and Laptops are one of the daily used electronic products particularly for entertainment. Movies, Gaming, Music are some of its kind in entertainment. Considering movies and gaming, we get maximum experience with large displays and monitors.  Some people will even use projector for such kind of great experience. Here we have another… Read More »

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Spark Error – java.io.IOException: Could not locate executable null\bin\winutils.exe in the Hadoop binaries

           The following error is due to missing winutils binary in the classpath while running Spark application. Winutils is a part of Hadoop ecosystem and is not included in Spark. The actual functionality of your  application may run correctly even after the exception is thrown. But it is better to have it… Read More »

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Wireless Microsoft Xbox 360 Controller for PC – Power off with Xbox 360 Controller Manager

          Many of you would have faced this problem with Microsoft Xbox 360 wireless controller for PC where you cannot switch/power off the controller other than removing the battery bay each time when you want to power off.           The problem is no more. Download this small… Read More »

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