i want to retrieve the value "id" from the following json response:
[{"id":134755304,"from":"postmaster#email.ncloud.com","subject":"Verify your email address to complete your Account registration.","date":"2023-01-20 22 :28:12"}]
I use RegEx to get the "id" value, but it doesn't work.
the following is the code in my postman test:
const res = pm.response.json();
let body = res.x[0].id;
const regex = /\d{9}/gm;
console.log(regex.exec);
pm.environment.set("idemail", regex.exec(x[0].id));
but i used the above code got an error like this,
TypeError: Cannot read properties of undefined (reading '0')
please help me solve this.
how to solve error when fetching json response using regex? i want to retrieve value "id"
Related
I've the below JSON response received from the HTTP request. I want to extract the parameters from the node "url" present in the JSON response.
{"Id":"7S9LyBqyv1e0trKrVuP1OOZGHeg","Url":"https://abcd.com:443/u/custom-response?prov=34545sdf-9013e2e61e66&realmeId=%2Fxxxx","realmeId":"/abcd"}
In the above JSON response, i want to retrieve the value of "prov" which is 34545sdf-9013e2e61e66 using JMeter.
Solution Tried: Used Beanshell to read the response.
String url = vars.get("successURL");
vars.put("responseURL",url.toString());
responseURL = responseURL.replaceAll(":"," ");
log.info("String URL "+responseURL.toString());
Error Message:
attempt to resolve method: toString() on undefined variable or class name: responseURL
I think you need to update this line:
responseURL = responseURL.replaceAll(":"," ");
to something like:
responseURL = vars.get("responseURL").replaceAll(":"," ");
However I don't guarantee that it will work because I don't know how do you get this successURL variable.
What will work is doing everything in one shot using JSR223 PostProcessor and Groovy language which has built-in JSON support, suggested code:
def url = new groovy.json.JsonSlurper().parse(prev.getResponseData()).Url
def params = org.apache.http.client.utils.URLEncodedUtils.parse(new URI(url), 'UTF-8')
params.each { param ->
log.info(param.getName() + '=' + param.getValue())
}
Demo:
More information: Apache Groovy - Why and How You Should Use It
You don't need to use complex Beanshell coding, You can do this easily using - Regular Expression Extractor.
Here the example:-
You can see required value extracted and stored in variable name give in Regular expression extractor:
To understand try out reg-ex, you can use https://regex101.com/
i know there are multiple similar topics, however trying their solutions doesn't give me expected result.
Input json string
data:"{"message": "{\"type\":\"CONTROL\",\"command\":\"REQUEST_STATUS_ALL\"}"}"
object declaration/parse:
const msg: Message = <Message>JSON.parse(data.data);
output:
{message: "{"type":"CONTROL","command":"REQUEST_STATUS_ALL"}"}
-values are not properly assigned, but instead in a text form.
the same object looks like this if it's initialized manually(in TS):
Message {type: "CONTROL", status: undefined, command: "REQUEST_STATUS_ALL", body: undefined}
What is the correct way to parse that json string into the Message object?
Thank you!
It seems the value for message was improperly encoded as a string. Calling JSON.parse a second time on the message property will get the result you want, though you might want to fix the underlying cause of the improperly encoded data instead.
parseMessage(data: string) {
const msgTemp = JSON.parse(data);
msgTemp.message = JSON.parse(msgTemp.message);
return <Message>msgTemp;
}
const msg = parseMessage(data.data);
so i have this data which is outputted from stringify(doc)
{
"id": "8467fdae-c38c-4b6e-9492-807d7c9eb97e",
"message": "send to nodejs"
}
but im not sure how can i go ahead in getting a single value from it, e.g message. Any help would be appreciated as ive tried different methods and they seem to not be working
After you use stringify method the value you have is string.
So You can not get single property from it, except you convert it become object again and get property it. Like this:
object = {
"id": "8467fdae-c38c-4b6e-9492-807d7c9eb97e",
"message": "send to nodejs"
};
// JSON string is value which you get after use Stringify method
jsonString = JSON.stringify(object);
// Convert jsonString to object again and get message property
message = JSON.parse(jsonString).message
stringify() will convert json to string.
Before running stringify(), doc is already json and you can get message by doc.message.
after running stringify(), the result will be string, if you want to get json back, you can use JSON.parse()
I'm getting the following error when trying to parse a json response
expected string or buffer
Within my Django model I have the following:
def get_batch_prediction(self):
client = boto3.client('machinelearning', region_name=settings.region, aws_access_key_id=settings.aws_access_key_id, aws_secret_access_key=settings.aws_secret_access_key)
return client.get_batch_prediction(
BatchPredictionId=str(self.id)
)
I then call it like so
batch = BatchPrediction.objects.get(id=batch_id)
response = batch.get_batch_prediction()
response = json.loads(response)
I know the response is json so I expected this to change it to a dictionary but, instead, I get the error above.
What's going on?
The boto3 docs suggest that get_batch_prediction returns a dictionary not a string. You shouldn't have to use json.loads().
I am doing an Ionic App with typescript.
I have some error condition as response from REST API,
I did
err._body
and it gives me
{"reason":"invalid_token"}
but when I do
err._body.reason
or
err._body.get("reason")
it gives undefined value.
I did JSON stringify and parse as well, no luck,
How to parse this and get the value so that I can apply specific processing for this.
First try to do
console.log(typeof err._body);
so we can be sure what the type of that is. If it's a string, you should do
let errorObj = JSON.parse(err._body);
// And then...
let errorMsg = errorObj.reason // or errorObj["reason"] as well
If it's an Object, you can skip the parse() part and just use it like this:
let errorMsg = err._body.reason // or err._body["reason"]