So I have some json in which the keys might be something like this:
{
"name" : "John",
"num:itparams:enterprise:2.0:content" : {
"housing" : "5"
},
"num rooms": "12"
}
I get this json from an http request, and I need to use the evaluateJsonPath processor to create attributes from them.
name is easy, i just use $.name
But how would I access the other two? I imagine you would put them in quotes somehow to escape the special characters but just doing $."num:itparams:enterprise:2.0:content" doesnt work.
You can use the bracket for the key-value which has the special characters such as
$.['num:itparams:enterprise:2.0:content'].housing
then it will give you the evaluated result 5.
Related
I'm trying to create a JSON file which will hold a regular expression.
for example:
{
"FrameworksData": [{
"name": "jquery",
"regexes": ["script\s+src\s*=\s*\"jquery", "b", "c"],
"extensions": [".js"],
"conditions":"t1=r1||r2||r3; t2=t1&&e1; res=t2;"
}
]
}
I need to use the double/single quotes as part of the regex that is located inside the JSON. However this JSON is not valid as a result of the structure \"jquery.
how do I use the single quotes and the double quotes in the JSON so I can achieve the correct regex?
Thanks!
Multiple techniques can be adopted:
Escape the backslash \ i.e to \\. For scripted escaping you can use this solution
"FrameworksData": [{"regexes": ["script\\s+src\\s*=\\s*\"jquery", "b", "c"]}]
You can use encodeURIComponent to transfer the regexes if you don't want to escape.
I am using the RestAssured framework in Java, whose documentation contains this note
Note that the "json path" syntax uses Groovy's GPath notation and is not to be confused with Jayway's JsonPath syntax.
I need to validate the following JSON:
"_source": {
"logSource": {
"logger.name": "LogbackLogger",
},
}
And the selectors like
_source.logSource.logger.name or
_source.logSource.logger.name[0] return no result.
I assume this is due to the dot in the logger.name property.
If no escaping is done, logger.name is interpreted as if name was under the logger, which is not true.
How do I correctly escape the dot character in the GPath, so that logger.name is considered as a single property name?
Thanks!
You have a trivial issue.
Just wrap it in between single quote i.e., 'logger.name'
as there is special character.
Here is complete example :
def string = """{ "_source": {
"logSource": {
"logger.name": "LogbackLogger",
}
}
}"""
def json = new groovy.json.JsonSlurper().parseText(string)
println json.'_source'.logSource.'logger.name'
How to read values from nested JSON without using any library like GSON or org.JSON?
JSON is :
{data: { "EV_TOT_AMT" : "12" , "EV_CURR" : "INR", "T_BASKET" : [{"ORDER" : "abc", "BASE" : "xyx"},{"ORDER" : "def", "BASE" : "mno"}] } }
I want to read specific values as EV_TOT_AMT , EV_CURR , ORDER.
As far as I know, Java doesn't includes a JSON parser inside it's core classes... so if you don't want to use an external library, you'll need to build your own JSON parser.
Of course, you can just search the JSON string for your desired substrings and get the values moving into the string from the next ":" to the next "," (if the first character after the ":" is not an "["). But this isn't a good approach, unless your JSON input string is going to have always the same structure... well... actually that's not a good approach, period.
I have a structure like this:
{
title: [
{lang: “en”, value: “snickers”},
{lang: “ru”, value: “сниккерс”}
]
}
I need to take a result such this:
“snickers”
I finished with query:
$.title[?(#.lang="en")].value
but it doesn't work
JsonPath always returns an array of results, so you will not be able to get a single value such as "snickers" on its own. You will be able to get ["snickers"] though. To get it working you need to use a double equal sign instead of single:
$.title[?(#.lang=="en")].value
Also note that another reason you may be having issues is that your double quotes in the json are not the standard double quote characters. Depending on how you consume the json you may also need to wrap the property names in double quotes. The json standard is quite strict, and if you are parsing your json from text it has to follow these rules. Here is version of the json corrected in this way:
{
"title": [
{"lang": "en", "value": "snickers"},
{"lang": "ru", "value": "сниккерс"}
]
}
I have tested the above query with the corrected json using http://www.jsonquerytool.com.
This is all you need for valid JSON, right?
["somestring1", "somestring2"]
I'll elaborate a bit more on ChrisR awesome answer and bring images from his awesome reference.
A valid JSON always starts with either curly braces { or square brackets [, nothing else.
{ will start an object:
{ "key": value, "another key": value }
Hint: although javascript accepts single quotes ', JSON only takes double ones ".
[ will start an array:
[value, value]
Hint: spaces among elements are always ignored by any JSON parser.
And value is an object, array, string, number, bool or null:
So yeah, ["a", "b"] is a perfectly valid JSON, like you could try on the link Manish pointed.
Here are a few extra valid JSON examples, one per block:
{}
[0]
{"__comment": "json doesn't accept comments and you should not be commenting even in this way", "avoid!": "also, never add more than one key per line, like this"}
[{ "why":null} ]
{
"not true": [0, false],
"true": true,
"not null": [0, 1, false, true, {
"obj": null
}, "a string"]
}
Your JSON object in this case is a list. JSON is almost always an object with attributes; a set of one or more key:value pairs, so you most likely see a dictionary:
{ "MyStringArray" : ["somestring1", "somestring2"] }
then you can ask for the value of "MyStringArray" and you would get back a list of two strings, "somestring1" and "somestring2".
Basically yes, JSON is just a javascript literal representation of your value so what you said is correct.
You can find a pretty clear and good explanation of JSON notation on http://json.org/
String strJson="{\"Employee\":
[{\"id\":\"101\",\"name\":\"Pushkar\",\"salary\":\"5000\"},
{\"id\":\"102\",\"name\":\"Rahul\",\"salary\":\"4000\"},
{\"id\":\"103\",\"name\":\"tanveer\",\"salary\":\"56678\"}]}";
This is an example of a JSON string with Employee as object, then multiple strings and values in an array as a reference to #cregox...
A bit complicated but can explain a lot in a single JSON string.