jsonpath | Golang jsonpath library | JSON Processing library
kandi X-RAY | jsonpath Summary
kandi X-RAY | jsonpath Summary
jsonpath is used to pull values out of a JSON document without unmarshalling the string into an object. At the loss of post-parse random access and conversion to primitive types, you gain faster return speeds and lower memory utilization. If the value you want is located near the start of the json, the evaluator will terminate after reaching and recording its destination. The evaluator can be initialized with several paths, so you can retrieve multiple sections of the document with just one scan. Naturally, when all paths have been reached, the evaluator will early terminate. For each value returned by a path, you'll also get the keys & indexes needed to reach that value. Use the keys flag to view this in the CLI. The Go package will return an []interface{} of length n with indexes 0 - (n-2) being the keys and the value at index n-1.
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Top functions reviewed by kandi - BETA
- evaluatePostFix takes a list of postfix items and evaluates them and returns the result .
- lexOneValue lexes a single expression .
- genIndexKey generates an index key .
- lexExprText scans expression .
- tokenToOperators converts tokens to a Path .
- FIXME
- stateJsonAfterValue is like stateJsonAfterAfterValue .
- pathMatchOp checks whether the current path is a match operator .
- pathEndValue is called when the end of the query evaluates to be evaluated
- parsePath parses a path string
jsonpath Key Features
jsonpath Examples and Code Snippets
Community Discussions
Trending Discussions on jsonpath
QUESTION
ANSWER
Answered 2022-Mar-13 at 07:29After we are done replacing items in data
, whichever items remain with property id
are not replaced, hence they are not in anotherObj
.
So we can find them and remove them like this:
QUESTION
spark.sql("""select get_json_object('{"k":{"value":"abc"}}', '$.*.value') as j""").show()
...ANSWER
Answered 2022-Feb-18 at 16:56There is a Spark JIRA "Any depth search not working in get_json_object ($..foo)" open for full JsonPath support.
Until it is resolved, I'm afraid creating a UDF that uses a "general-purpose" JsonPath implementation might be the one and only option:
QUESTION
We have cluster with Istio and also Jenkins job to get "stable" pods, which uses this kubectl
query:
ANSWER
Answered 2022-Feb-16 at 21:09What about something like this?
QUESTION
I've one workflow in which I'm using jsonpath
function for a output parameter to extract a specific value from json string, but it is failing with this error Error (exit code 255)
Here is my workflow
...ANSWER
Answered 2022-Feb-05 at 22:55When an expression fails to evaluate, Argo Workflows simply does not substitute the expression with its evaluated value. Argo Workflows passes the expression as if it were the parameter.
{{=}}
"expression tag templates" in Argo Workflows must be written according to the expr language spec.
In simple tag templates, Argo Workflows itself does the interpreting. So hyphens in parameter names are allowed. For example, value: "{{inputs.parameters.what-it-is}}"
is evaluated by Argo Workflows to be value: "over 9000!"
.
But in expression tag templates, expr interprets hyphens as minus operators. So value: "{{=inputs.parameters.what-it-is}}"
looks like a really weird mathematical expression, fails, and isn't substituted. The workaround is to use ['what-it-is']
to access the appropriate map item.
My guess is that your expression is failing, Argo Workflows is passing the expression to dev-outputs-wft
un-replaced, and whatever shell script is receiving that parameter is breaking.
If I'm right, the fix is easy:
QUESTION
Problem when mapping an entity with a geometric field Geometry Point. When accessing the table repository, using the standard function findAll() getting "null" , although there are records in the database.When configuring, I used the official manual Hybernate Spatial. I get an error when requesting a controller: " exception is org.geolatte.geom.codec.WkbDecodeException: Expected geometryKeyword starting at position: 0] with root cause" Help me please , I do not know how to act and what is the reason
My config:
- Hibernate (5.4.32.Final)
- Hibernate Spatial (5.4.32.Final)
- Posgis (version 2.5)
- PostgreSQL 10.17
Entity:
...ANSWER
Answered 2021-Jul-24 at 21:30Try switching the column in database for location from type of point
to type geometry
Also use all the following properties
QUESTION
In Kubernetes CustomResourceDefinitions
(CRDs), we can specify additionalPrinterColumns
, which (for example) are used for kubectl get
with a CRD. The value for a column is usually extracted from the status of a CRD using a jsonPath
. From the Kubernetes docs, we can also see that timestamps are rendered in a user friendly way (e.g., 5m or 2h, representing the duration from this timestamp to now):
ANSWER
Answered 2022-Jan-12 at 15:01I will answer on your question partially so you have some understanding and ideas on what/how/where.
kubectl get
When kubectl get jobs
is executed, kubernetes API server
decides which fields to provide in response:
The
kubectl
tool relies on server-side output formatting. Your cluster's API server decides which columns are shown by thekubectl get
command
See here.
Duration
field for jobs
is also calculated on the server's side. This happens because job
is a well-known resource for kubernetes server and it's built into the code "How to print the response". See JobDuration - printer.
This also can be checked by running regular command:
QUESTION
I'll premise that I've already googled and read the documentation before writing, I've noticed that it's a popular discussion here on StackOverflow as well, but none of the answers already given have helped me.
I created a Google Cloud account to use the API: Google Vision.
To do this I followed the steps of creating the project, adding the above API and finally creating a service account with a key.
I downloaded the key and put it in a folder in the java project on the PC.
Then, since it is a maven project I added the dependencies to the pom as described in the tutorials.
At this point I inserted the suggested piece of code to start using the API.
Everything seemed to be OK, everything was read, the various libraries/interfaces were imported.
But an error came up as soon as I tried to run the program:
The Application Default Credentials are not available. They are available if running in Google Compute Engine. Otherwise, the environment variable GOOGLE_APPLICATION_CREDENTIALS must be defined pointing to a file defining the credentials.
I must admit I didn't know what 'Google Compute Engine' was, but since there was an alternative and I had some credentials, I wanted to try and follow that.
So I follow the instructions:
After creating your service account, you need to download the service account key to your machine(s) where your application runs. You can either use the GOOGLE_APPLICATION_CREDENTIALS environment variable or write code to pass the service account key to the client library.
OK, I tried the first way, to pass the credentials via environment variable:
- With powershell -> no response
ANSWER
Answered 2022-Jan-10 at 17:56Your approach is correct.
To authenticate code, you should use a Service Account.
Google provides a useful mechanism called Application Default Credentials (ADCs). See finding credentials automatically. When you use ADCs, Google's SDKs use a predefined mechanism to try to authenticate as the Service Account:
- Checking
GOOGLE_APPLICATION_CREDENTIALS
in your environment. As you've tried; - When running on a GCP service (e.g. Compute Engine) by looking for the service's (Service Account) credentials. With Compute Engine, this is done by checking the so-called Metadata service.
For #1, you can either use GOOGLE_APPLICATION_CREDENTIALS
in the process' environment or you can manually load the file as you appear to be trying in your code.
That all said:
- I don't see where
GoogleCredentials
is being imported by your code? - Did you grant the Service Account a suitable role (permissions) so that it can access any other GCP services that it needs?
You should be able to use this List objects example.
The link above, finding credentials automatically, show show to create a Service Account, assign it a role and export
it.
You will want to perhaps start (for development!) with roles/storage.objectAdmin
(see IAM roles for Cloud Storage) and refine before deployment.
QUESTION
I have a controller which gives the user a 403 response unless they are authenticated with a JWT token which is passed as a Bearer token via the authorization header. I'm looking for resources on how to test this with Mockito but I'm not very successful so far as most of them tell me to use the @WithMockUser annotation, which I understand is for Spring security yes, but does not include the mocking for a JWT token. I've tried to mock a few objects such as the UserDetailsClass and the JwtFilter and even hardcoding the bearer token but I think there should be more to it.
...ANSWER
Answered 2021-Dec-26 at 05:59We just fixed the issue (accepting the other answer for being a more elegant solution).
1st and easier option:
Disable filter authentication for controller test classes:
QUESTION
when I try to make a mockmvc post request I have to pass a list of objects in the content tag, the problem is that everytime I try to pass it with this method:
...ANSWER
Answered 2021-Nov-30 at 17:13It seems to me that the issue is that you are trying to pass something like the following JSON to the content
:
QUESTION
I have an attribute in a DTO and Entity defined like this:
...ANSWER
Answered 2021-Nov-20 at 14:42tl;dr
Add this to your application.properties
:
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