Oct 22, 2012 · First, make sure that you are working with valid JSON. Go to an online JSON validator like JSONlint and confirm that the code is actually valid. Here is an example of a valid JSON object: If you paste this into JSONLint and press validate, you will get a green success message. Using CSE API in Python. Now to use your Search Engine in Python, you need two things: First, you need to get your Search Engine ID, you can get easily find it in the CSE control panel: Second, you have to generate a new API key, head to the Custom Search JSON API page, and click on the "Get a Key" button there, a new window will appear, you ...Search JSON with jQuery. 0. Adding a simple search function to ajax. 0. Searching a JSON String. 1. Search through JSON data without AJAX. 4. JSON and jQuery Search. 0.The search query. Only 20 results of each type will be returned for each page, but a total count is returned with each query. page=1 (the default) will return items 1-20, page=2 will return items 21-30, etc. This allows you to limit the number of results of each type per page, up to a maximum of 20, the default value.I am searching for lucene query to search this JSON message having . orders > 30 and version > 3.4 Any help is appreciated [Updated] I am using logback-elasticsearch-appender to push messages into ElasticSearch using SLF4j. log.info(new org.json.JSONOject(arg).toString());This sample loads JSON and then queries values from it using P:Newtonsoft.Json.Linq.JToken.Item(System.Object) indexer and then casts the returned tokens to .NET values.You can use DefiantJS (http://defiantjs.com) which extends the global object JSON with the method "search". With which you can query XPath queries on JSON structures. Example:LINQ to JSON provides a number of methods for getting data from its objects. The index methods on JObject/JArray let you quickly get data by its property name on an object or index in a collection, while Children () lets you get ranges of data as IEnumerable<JToken> to then query using LINQ. Getting values by Property Name or Collection Index.A JSON path that specifies the object or the array to extract. In SQL Server 2017 (14.x) and in Azure SQL Database, you can provide a variable as the value of path. The JSON path can specify lax or strict mode for parsing. If you don't specify the parsing mode, lax mode is the default. For more info, see JSON Path Expressions (SQL Server).Search JSON with jQuery. 0. Adding a simple search function to ajax. 0. Searching a JSON String. 1. Search through JSON data without AJAX. 4. JSON and jQuery Search. 0.You basically treat it as a dictionary, passing the keys to get the values of each nested dictionary. The only different part is when you hit maindata, where the resulting value is a list. In order to handle that, we pull the first element [0] and then access the Info key to get the value TEXT.In the Search flags text field, type JSON viewer. In the JSON Viewer dropdown menu, select Enabled. Click the Restart button which appears in the lower right: View reformatted JSON server responses. To view a JSON response from a web server as reformatted JSON: Open a new tab or window in Microsoft Edge. Type a URL that returns JSON data in the ...With the second method, you return only after checking every element of json_object, which is substantial on large lists. I tested it myself, and worst case (search which matches the last element in json_object), the loop takes as long as the comprehension. Best case, where the search matches the first element, outperforms the comprehension ... By using this jquery regular expression can search JSON data by key and value pair and for display search data on web page we have use Jquery append () method. This method will append html code in particular HTML tag and that display on web page. Here search data like employee image, name and location will load below textbox in drop down list ... This package can query JSON data to find and extract information. It can parse JSON strings and perform queries to find nodes by name of object and array elements. It can also filter by values of child element values using a fluent interface to combine multiple filter conditions. JSON has become the de facto standard format for exchanging ...This week we will take another look at some common data types we might encounter in the real world: JSON data. JSON data is used pretty frequently on the web if you’re hitting APIs. This not only includes external data (twitter, weather, marvel database), but often includes internal data to your company. It’s nice to be able to leverage ...Simple Steps to Create Live Search using JSON and jQuery. Let’s create a ‘live-search’ project which can be located anywhere on your computer. Creating a index.html file and writing all the below steps code into this file. Step 1: We need a sample json data for live search.In MySQL, the JSON_SEARCH() function returns the path to a given string in a JSON document. You provide the JSON document as an argument to the function. You also provide the argument that determines the actual string to search (including any escape characters), as well as a keyword to indicate whether to return the path of all instances or just one.May 14, 2021 · Note: We used json.loads() method to convert JSON encoded data into a Python dictionary. After turning JSON data into a dictionary, we can check if a key exists or not. Check if there is a value for a key in JSON. We need a value of the key to be present in JSON so we can use this value in our system. A JSON database like MongoDB stores the data in a JSON-like format ( binary JSON ), which is the binary encoded version of JSON, and is optimized for performance and space. This makes the MongoDB database the best natural fit for storing JSON data. You can store details of an entire object in one document, making it easier to view and query. The Custom Search JSON API lets you develop websites and applications to retrieve and display search results from Programmable Search Engine programmatically. With this API, you can use...Mar 23, 2023 · Azure Cognitive Search can index JSON documents and arrays in Azure Blob Storage using an indexer that knows how to read semi-structured data. Semi-structured data contains tags or markings which separate content within the data. It splits the difference between unstructured data, which must be fully indexed, and formally structured data that ... May 26, 2023 · System.Text.Json provides two ways to build a JSON DOM: JsonDocument provides the ability to build a read-only DOM by using Utf8JsonReader. The JSON elements that compose the payload can be accessed via the JsonElement type. The JsonElement type provides array and object enumerators along with APIs to convert JSON text to common .NET types. By using SQL Server built-in functions and operators, you can do the following things with JSON text: Parse JSON text and read or modify values. Transform arrays of JSON objects into table format. Run any Transact-SQL query on the converted JSON objects. Format the results of Transact-SQL queries in JSON format.Search JSON response with python. 0. Python - Searching JSON. 2. Python searching a Json with key value. 0. Searching for a string within JSON list. 0. Searching in a ...By using this jquery regular expression can search JSON data by key and value pair and for display search data on web page we have use Jquery append () method. This method will append html code in particular HTML tag and that display on web page. Here search data like employee image, name and location will load below textbox in drop down list ... May 25, 2018 · I am searching for lucene query to search this JSON message having . orders > 30 and version > 3.4 Any help is appreciated [Updated] I am using logback-elasticsearch-appender to push messages into ElasticSearch using SLF4j. log.info(new org.json.JSONOject(arg).toString()); JavaScript Object Notation (JSON) is a standard text-based format for representing structured data based on JavaScript object syntax. It is commonly used for transmitting data in web applications (e.g., sending some data from the server to the client, so it can be displayed on a web page, or vice versa).Get Started with Elasticsearch. Video. Intro to Kibana. Video. ELK for Logs & Metrics. Dec 30, 2021 · json_search(json_doc,one_or_all,search_str [,escape_char [, path]]) 和json_contains相比，该函数不需要指定具体的path，更像是like一样的模糊查询。 如果查询的str存在，则返回具体的path,如果不存在则返回null。 Jul 3, 2023 · JavaScript Object Notation (JSON) is a standard text-based format for representing structured data based on JavaScript object syntax. It is commonly used for transmitting data in web applications (e.g., sending some data from the server to the client, so it can be displayed on a web page, or vice versa). I've got a JSON stream coming back from a server, and I need to search for a specific value of the node "ID" using JSON.net to parse the data. And I can almost make it work, but not quite because the results coming back are deeply nested in each other -- this is due to the fact that I'm getting a folder structure back.May 14, 2021 · Note: We used json.loads() method to convert JSON encoded data into a Python dictionary. After turning JSON data into a dictionary, we can check if a key exists or not. Check if there is a value for a key in JSON. We need a value of the key to be present in JSON so we can use this value in our system. Using python to search json for a value. 0. Parsing Json in Python and find a value. 1. Searching for a value in JSON array. 0.The search query. Only 20 results of each type will be returned for each page, but a total count is returned with each query. page=1 (the default) will return items 1-20, page=2 will return items 21-30, etc. This allows you to limit the number of results of each type per page, up to a maximum of 20, the default value.Dec 29, 2022 · A JSON path that specifies the object or the array to extract. In SQL Server 2017 (14.x) and in Azure SQL Database, you can provide a variable as the value of path. The JSON path can specify lax or strict mode for parsing. If you don't specify the parsing mode, lax mode is the default. For more info, see JSON Path Expressions (SQL Server). I am trying to extract the data from a JSON output obtained from API call using uri module. The data contains some key value pairs. The format is like below item : "name-of-the-item" &quo...Nov 27, 2016 · Using python to search json for a value. 0. Parsing Json in Python and find a value. 1. Searching for a value in JSON array. 0. Nov 21, 2020 · The function should then check for the given key value pair in the JSON object. If there exists any object then the function should return an array of all such objects. We will use the following approach to solve this problem − I am searching for lucene query to search this JSON message having . orders > 30 and version > 3.4 Any help is appreciated [Updated] I am using logback-elasticsearch-appender to push messages into ElasticSearch using SLF4j. log.info(new org.json.JSONOject(arg).toString());Aug 10, 2020 · Search JSON response with python. 0. Python - Searching JSON. 2. Python searching a Json with key value. 0. Searching for a string within JSON list. 0. Searching in a ... Now I want to search through the key steamnaam I am currently using this query: SELECT * FROM logs_1 WHERE JSON_CONTAINS (lower (`data`), '"finn"', "$.steamnaam") This does give me the rows that contain finn as a value in the steamname JSON. But now I want to also make it check if it's not exactly the same, but almost the same.Jul 12, 2016 · I've got a JSON file and I want to allow users to input a search term (which will be a key in JSON file)) and have the corresponding JSON value be displayed on the web page. I've searched this forum and the web and, using examples I've found, I've hacked together a script and some HTML but, surprise!, it's not working. Mar 27, 2023 · In the Search flags text field, type JSON viewer. In the JSON Viewer dropdown menu, select Enabled. Click the Restart button which appears in the lower right: View reformatted JSON server responses. To view a JSON response from a web server as reformatted JSON: Open a new tab or window in Microsoft Edge. Type a URL that returns JSON data in the ... i am using python json and i want to let my Python code search for specefic Keywords in a JSON-File. Basically it should search for the "profilename" and then go one line down and print the email of the profile out.With the second method, you return only after checking every element of json_object, which is substantial on large lists. I tested it myself, and worst case (search which matches the last element in json_object), the loop takes as long as the comprehension. Best case, where the search matches the first element, outperforms the comprehension ...json_search(json_doc,one_or_all,search_str [,escape_char [, path]]) 和json_contains相比，该函数不需要指定具体的path，更像是like一样的模糊查询。 如果查询的str存在，则返回具体的path,如果不存在则返回null。Using Python’s context manager, you can create a file called data_file.json and open it in write mode. (JSON files conveniently end in a .json extension.) Note that dump () takes two positional arguments: (1) the data object to be serialized, and (2) the file-like object to which the bytes will be written.How to search/find In JSON with java. I have a below JSON string from the below i want to find/search criteria in JSON String. To find the Number of keys present. { "store": { "book": [ { "category": "reference", "author": "Nigel Rees", "title": "Sayings of the Century", "price": 8.95 }, { "category": "fiction", "author": "Evelyn Waugh", "title ...Description. Returns the path to the given string within a JSON document, or NULL if any of json_doc, search_str or a path argument is NULL; if the search string is not found, or if no path exists within the document. A warning will occur if the JSON document is not valid, any of the path arguments are not valid, if return_arg is neither one ... By using this jquery regular expression can search JSON data by key and value pair and for display search data on web page we have use Jquery append () method. This method will append html code in particular HTML tag and that display on web page. Here search data like employee image, name and location will load below textbox in drop down list ... Description. Returns the path to the given string within a JSON document, or NULL if any of json_doc, search_str or a path argument is NULL; if the search string is not found, or if no path exists within the document. A warning will occur if the JSON document is not valid, any of the path arguments are not valid, if return_arg is neither one ...The Custom Search JSON API lets you develop websites and applications to retrieve and display search results from Programmable Search Engine programmatically. With this API, you can use...This sample loads JSON and then queries values from it using P:Newtonsoft.Json.Linq.JToken.Item(System.Object) indexer and then casts the returned tokens to .NET values. Add JSON documents. After you create an index, Redis Stack automatically indexes any existing, modified, or newly created JSON documents stored in the database. For existing documents, indexing runs asynchronously in the background, so it can take some time before the document is available. Modified and newly created documents are indexed ... Jul 3, 2023 · JavaScript Object Notation (JSON) is a standard text-based format for representing structured data based on JavaScript object syntax. It is commonly used for transmitting data in web applications (e.g., sending some data from the server to the client, so it can be displayed on a web page, or vice versa). The MIME type of the OpenSearch URL template for the Custom Search JSON API. The actual OpenSearch template for this API. Contains one or more sets of query metadata, keyed by role name. The possible role names include request defined by the OpenSearch query roles and two custom roles: nextPage and previousPage.Jul 29, 2018 · You'll first need to invoke parse_json () on your column (unless it's already typed as dynamic and not as string, in which case you can skip this step). Then you can access the Date property in your JSON value and use todatetime () to cast it to type datetime. Afterwards, you can filter by your external parameter ( dateTimeLowerBound in the ... JSON search syntax. In addition to using the Google-esque search syntax to find things in your logs, Papertrail can parse a JSON object that appears at the end of a log line. Each line can contain arbitrary string data before the JSON. For example: 2019 -12-02 03:04:05 DEBUG { "a" :123, "b" :456} This is a beta feature and the final syntax ... System.Text.Json provides two ways to build a JSON DOM: JsonDocument provides the ability to build a read-only DOM by using Utf8JsonReader. The JSON elements that compose the payload can be accessed via the JsonElement type. The JsonElement type provides array and object enumerators along with APIs to convert JSON text to common .NET types.Using powershell I would like to search for "node" key1B and select it. The assumptions are. The search term (key1B) can either be a root element or a child of a root element. If I were to know the parent under which node key1B is I could use below: Get-Content -Raw my.json | ConvertFrom-Json | Select-Object -ExpandProperty key1 | Select-Object ...1. To get the value with the key in Object, you can use Object [key] (here, key is variable name) and this will return the value of the selected key. return configData.rootData [data]?.testData0; // Javascript case. So instead of using { { }}, replace it with square brackets and you will get the result.The Custom Search JSON API lets you develop websites and applications to retrieve and display search results from Programmable Search Engine programmatically. With this API, you can use...JavaScript Object Notation (JSON) is a standard text-based format for representing structured data based on JavaScript object syntax. It is commonly used for transmitting data in web applications (e.g., sending some data from the server to the client, so it can be displayed on a web page, or vice versa).1. To get the value with the key in Object, you can use Object [key] (here, key is variable name) and this will return the value of the selected key. return configData.rootData [data]?.testData0; // Javascript case. So instead of using { { }}, replace it with square brackets and you will get the result.Description. Returns the path to the given string within a JSON document, or NULL if any of json_doc, search_str or a path argument is NULL; if the search string is not found, or if no path exists within the document. A warning will occur if the JSON document is not valid, any of the path arguments are not valid, if return_arg is neither one ...@Bhawna first you are returning "null" value, in a build method you cannot have any null widget. Then you are making the "contains" check in the build method, which is not clean; the build method should only build the GUI based on some variables to be fast.Description. Returns the path to the given string within a JSON document, or NULL if any of json_doc, search_str or a path argument is NULL; if the search string is not found, or if no path exists within the document. A warning will occur if the JSON document is not valid, any of the path arguments are not valid, if return_arg is neither one ... Jul 7, 2021 · After that we’ll dive into the new capabilities section of this private preview. The ability to index, query, and use full-text search on JSON documents using RediSearch is the coolest new feature of this release. Finally, we’ll show you how to quickly get started. Fig1. Redis Cloud databases using at least one module (May 2021) JSON ... Oct 30, 2022 · I want to use Powershell to recursively search a JSON for a string, and then have it report back the path to the value and what the value was. In this example I want to search the whole JSON for any key that has 'corset' in its value, and then return back that it was found in : For reasons beyond my control, I need to search for the same key value in JSONs with different structures. I a code that is able to find the value of "valor", and no matter what is the structure of the JSON, there always will be a vendor key somewhere inside it. By now I have two examples of JSON that I receive:For strict parsing with no data type conversion, use extract () or extract_json () functions. It's better to use the parse_json () function over the extract_json () function when you need to extract more than one element of a JSON compound object. Use dynamic () when possible. Deprecated aliases: parsejson (), toobject (), todynamic ()Mar 23, 2023 · Azure Cognitive Search can index JSON documents and arrays in Azure Blob Storage using an indexer that knows how to read semi-structured data. Semi-structured data contains tags or markings which separate content within the data. It splits the difference between unstructured data, which must be fully indexed, and formally structured data that ... Using powershell I would like to search for "node" key1B and select it. The assumptions are. The search term (key1B) can either be a root element or a child of a root element. If I were to know the parent under which node key1B is I could use below: Get-Content -Raw my.json | ConvertFrom-Json | Select-Object -ExpandProperty key1 | Select-Object ...Area=='" + searchKey + "')] json path expression is selecting the root level nodes using $. and searching for Area under Branches node using (@..Area='Devis') expression. Once an area is matched under the branches node the root level Area node is selected which includes other branch nodes as well. Other option is to explicitly select Branch ...The function should then check for the given key value pair in the JSON object. If there exists any object then the function should return an array of all such objects. We will use the following approach to solve this problem −A JSON null value is converted to an SQL null in all cases. If the output column is of type json or jsonb, the JSON value is just reproduced exactly.. If the output column is a composite (row) type, and the JSON value is a JSON object, the fields of the object are converted to columns of the output row type by recursive application of these rules. Mar 30, 2023 · By using SQL Server built-in functions and operators, you can do the following things with JSON text: Parse JSON text and read or modify values. Transform arrays of JSON objects into table format. Run any Transact-SQL query on the converted JSON objects. Format the results of Transact-SQL queries in JSON format. A JSON null value is converted to an SQL null in all cases. If the output column is of type json or jsonb, the JSON value is just reproduced exactly.. If the output column is a composite (row) type, and the JSON value is a JSON object, the fields of the object are converted to columns of the output row type by recursive application of these rules.This is a basic search that shows and hides HTML. Right now it shows/hides list items, but you could wrap each animal in a div with an id and search for that. Also, this only searches for entire words but you could adjust it to search for each letter and hide more and more animals as the search gets more specific.LINQ to JSON provides a number of methods for getting data from its objects. The index methods on JObject/JArray let you quickly get data by its property name on an object or index in a collection, while Children () lets you get ranges of data as IEnumerable<JToken> to then query using LINQ. Getting values by Property Name or Collection Index.May 25, 2018 · I am searching for lucene query to search this JSON message having . orders > 30 and version > 3.4 Any help is appreciated [Updated] I am using logback-elasticsearch-appender to push messages into ElasticSearch using SLF4j. log.info(new org.json.JSONOject(arg).toString()); Using CSE API in Python. Now to use your Search Engine in Python, you need two things: First, you need to get your Search Engine ID, you can get easily find it in the CSE control panel: Second, you have to generate a new API key, head to the Custom Search JSON API page, and click on the "Get a Key" button there, a new window will appear, you ...Description. Returns the path to the given string within a JSON document, or NULL if any of json_doc, search_str or a path argument is NULL; if the search string is not found, or if no path exists within the document. A warning will occur if the JSON document is not valid, any of the path arguments are not valid, if return_arg is neither one ...Online tool for querying, extracting or selecting parts of a JSON or XML document or testing a query using JSONPath, JSPath, Lodash, Underscore, JPath, XPath for JSON, JSON Pointer, XPath, XSLT or just plain old JavaScript. Enter your JSON/XML and your query and immediately see the extracted results in the browser.Description. Search the registry for packages matching the search terms. npm search performs a linear, incremental, lexically-ordered search through package metadata for all files in the registry. If your terminal has color support, it will further highlight the matches in the results. This can be disabled with the config item color. 3. I have a JSON file that looks like this: I have a list of device ID's, and I'd like to search my JSON for a specific value of the id, to get the name. The data that is now is JSON format used to be in XML format, for which I used to do this: device = xml.find ("devices/device [@id=\'%s\']" %someDeviceID) deviceName = device.attrib ['name ...Apr 17, 2019 · For reasons beyond my control, I need to search for the same key value in JSONs with different structures. I a code that is able to find the value of "valor", and no matter what is the structure of the JSON, there always will be a vendor key somewhere inside it. By now I have two examples of JSON that I receive: Feb 5, 2014 · I'm trying to get started with Yammer API. I have been able to go through the oauth process and obtain the token. Now, I just want to perform searches within the current user's account. The Yammer... json_search(json_doc,one_or_all,search_str [,escape_char [, path]]) 和json_contains相比，该函数不需要指定具体的path，更像是like一样的模糊查询。 如果查询的str存在，则返回具体的path,如果不存在则返回null。
This is a basic search that shows and hides HTML. Right now it shows/hides list items, but you could wrap each animal in a div with an id and search for that. Also, this only searches for entire words but you could adjust it to search for each letter and hide more and more animals as the search gets more specific.. Places to eat that
Online tool for querying, extracting or selecting parts of a JSON or XML document or testing a query using JSONPath, JSPath, Lodash, Underscore, JPath, XPath for JSON, JSON Pointer, XPath, XSLT or just plain old JavaScript. Enter your JSON/XML and your query and immediately see the extracted results in the browser.Jul 29, 2018 · You'll first need to invoke parse_json () on your column (unless it's already typed as dynamic and not as string, in which case you can skip this step). Then you can access the Date property in your JSON value and use todatetime () to cast it to type datetime. Afterwards, you can filter by your external parameter ( dateTimeLowerBound in the ... Nov 27, 2016 · Using python to search json for a value. 0. Parsing Json in Python and find a value. 1. Searching for a value in JSON array. 0. Using python to search json for a value. 0. Parsing Json in Python and find a value. 1. Searching for a value in JSON array. 0.JSON search syntax. In addition to using the Google-esque search syntax to find things in your logs, Papertrail can parse a JSON object that appears at the end of a log line. Each line can contain arbitrary string data before the JSON. For example: 2019 -12-02 03:04:05 DEBUG { "a" :123, "b" :456} This is a beta feature and the final syntax ...Nov 21, 2020 · The function should then check for the given key value pair in the JSON object. If there exists any object then the function should return an array of all such objects. We will use the following approach to solve this problem − Generate a search.json file use of the getStaticProps functions in nextjs. getStaticProps help to fetch a post and pass it into props in the component. Create a dynamic composer json file Requirement@dig: Search for a value without providing its entire path. See e8e87f2. Modifier arguments. A modifier may accept an optional argument. The argument can be a valid JSON document or just characters. For example, the @pretty modifier takes a json object as its argument.Description. Returns the path to the given string within a JSON document, or NULL if any of json_doc, search_str or a path argument is NULL; if the search string is not found, or if no path exists within the document. A warning will occur if the JSON document is not valid, any of the path arguments are not valid, if return_arg is neither one ... 3. I have a JSON file that looks like this: I have a list of device ID's, and I'd like to search my JSON for a specific value of the id, to get the name. The data that is now is JSON format used to be in XML format, for which I used to do this: device = xml.find ("devices/device [@id=\'%s\']" %someDeviceID) deviceName = device.attrib ['name ...1. To get the value with the key in Object, you can use Object [key] (here, key is variable name) and this will return the value of the selected key. return configData.rootData [data]?.testData0; // Javascript case. So instead of using { { }}, replace it with square brackets and you will get the result.You basically treat it as a dictionary, passing the keys to get the values of each nested dictionary. The only different part is when you hit maindata, where the resulting value is a list. In order to handle that, we pull the first element [0] and then access the Info key to get the value TEXT.Nov 27, 2016 · Using python to search json for a value. 0. Parsing Json in Python and find a value. 1. Searching for a value in JSON array. 0. 12.17.3 Functions That Search JSON Values The functions in this section perform search or comparison operations on JSON values to extract data from them, report whether data exists at a location within them, or report the path to data within them. The MEMBER OF () operator is also documented herein. JSON_CONTAINS ( target , candidate [, path ]) var arrayFound = obj.items.filter(function(item) { return item.isRight == 1; }); Of course you could also write a function to find items by an object literal as a condition:Aug 3, 2022 · We are using json module to convert the JSON string to a dictionary. Parsing a List using JSONPath Expression. The JSON key can contain a list of values. We can use JSONPath expression to parse the list and get the list of values. Let’s say we have a JSON file “db.json” with the following contents. Jan 30, 2014 · If I search "cars", it returns 2 results, and the rest of my code won't recognize the objects. (Plus, I know there's more than 2 results for cars). Any idea on how to modify the URL? May 14, 2021 · Note: We used json.loads() method to convert JSON encoded data into a Python dictionary. After turning JSON data into a dictionary, we can check if a key exists or not. Check if there is a value for a key in JSON. We need a value of the key to be present in JSON so we can use this value in our system. This is a basic search that shows and hides HTML. Right now it shows/hides list items, but you could wrap each animal in a div with an id and search for that. Also, this only searches for entire words but you could adjust it to search for each letter and hide more and more animals as the search gets more specific.@Bhawna first you are returning "null" value, in a build method you cannot have any null widget. Then you are making the "contains" check in the build method, which is not clean; the build method should only build the GUI based on some variables to be fast.Performance tips. Apply where-clauses before using extract_json (). Consider using a regular expression match with extract instead. This can run very much faster, and is effective if the JSON is produced from a template. Use parse_json () if you need to extract more than one value from the JSON. Consider having the JSON parsed at ingestion by ....