5/30/2023 0 Comments Best way to handle json query![]() Step 7) I have used the method scanner to read each line from the API and fetch the data in string format. Throw new RuntimeException(“HttpResponseCode: “ +responsecode) The structure would be like this: if(responsecode != 200) Step 6) Now we need to perform a check so that if the response code is not 200, we throw a runtime exception, or otherwise carry on the rest of the procedure. Int responsecode = conn.getResponseCode() Step 5) Get the corresponding response code. Step 4) Open a connection stream to the corresponding API. Step 3) Set the request type, as in, whether the request to the API is a GET request or a POST request. HttpURLConnection conn = (HttpURLConnection)url.openConnection() For example, set the request type or check the status of the response code: The benefit of doing this is that we will be able to harness the properties of the HttpURLConnection class to validate features. Step 2) Type cast the URL object into a HttpURLConnection object. Step 1) Pass the desired URL as an object: So let’s proceed ahead and I would try to explain the process of parsing the data step wise. More over clients built around JSON API are able to take advantage of its features around efficiently caching responses, sometimes eliminating network requests entirely. Now what is the use of parsing JSON data from a web service when I can have it in my system already ? The answer to that would be now a days maximum of the client data is available over the web as it is not prone to data loss. In this blog, I will describe how you can use JAVA to leverage JSON data from a REST API.īefore starting here is the REST API I am using to parse data into my system JSON-API. REST (Representational State Transfer) is an architectural style and is an approach to communications between different modules often used in the development of web services. I won’t go into much detail describing APIs in this blog post. The data that is parsed from a JSON API is in the form of objects that need to be converted into their respective data formats as acceptable by the system. ![]() JSON provides data to its corresponding calling function in key value pairs, ‘key’ as in the variable and ‘value’ as in the corresponding value for the variable. ![]() JSON (JavaScript Object Notation) is a lightweight data interchange format that is now being used as a profound and efficient way of gathering, collecting, or share data among applications and interfaces. ![]() Lastly, using local variables instead of parameters prevents SQL Server from sniffing parameter values and using average density however, this may result in suboptimal plans because local variables don't reflect actual parameter values.Before starting, I would like my readers to first understand what a JSON based API is. Plan guides also allow you to attach a specific plan or a query hint to a stored procedure or a parameterized query without modifying the code. Additionally, query hints such as OPTIMIZE FOR, RECOMPILE, or OPTION can be used to force SQL Server to use a specific plan or recompile the plan for each execution. To fix parameter sniffing issues, you can update statistics and indexes regularly to ensure the plan is based on current data distribution and cardinality. Alternatively, the query store feature in SQL Server 2016 or later can be used to monitor and compare the performance of different plans for the same query over time. If the numbers are significantly different, it may indicate the plan is based on outdated or inaccurate statistics. One way to detect parameter sniffing issues is to compare the actual and estimated row counts in the query execution plan.
0 Comments
Leave a Reply. |