gjson | Make it easy to read arbitrary JSON in Go | JSON Processing library
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kandi X-RAY | gjson Summary
gjson provides a convenient way to read arbitrary JSON in Go.
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QUESTION
I created the github.com
project qjson/qjson-go
that contains the package name qjson
that you can see here. I named the github project this way because github.com/qjson/
contains other projects for different languages (e.g. qjson-c
).
Unfortunately, I get the following error when I try to import the project as github.com/qjson/qjson-go
:
ANSWER
Answered 2021-May-24 at 13:50This program works as expected:
QUESTION
I am trying to remove feature_id
property from properties array and move upwards.
ANSWER
Answered 2020-Dec-10 at 11:56You can use OrderedDict for that.
QUESTION
I want to check whether an interface that comes from my application is valid json or not. I have searched. It could be duplicate of here: duplicate (but it did not work) I found some methods. One of them is Marshaling then Unmarshaling the interface like the following code:
...ANSWER
Answered 2020-Sep-08 at 21:56Here an example:
QUESTION
I want to validate an openapi spec in a similar fashion as its done here : http://bigstickcarpet.com/swagger-parser/www/index.html but the difference is that Ill use GO to code the tool and its only a CLI.
I am trying to use this :
https://github.com/go-openapi/validate
But the main problem is that the documentation is almost non existent. I came here looking for help of someone that might previously used this library and can give me a MINIMAL example of sending a file containing a spec like such and having this library to throw all the errors or warnings in a similar fashion to the online Swagger validator.
I already can read a file and do some manual validation of the fields on it but of course thats not what I need to do and its just a sample.
Additionally, as a secondary question, I want to post this same question on their GitHub repo but I get this :
and I have no idea how to "review" these guidelines so I can post my question.
What I have : ...ANSWER
Answered 2018-Feb-15 at 10:29I use https://github.com/go-openapi quite a lot and find that packages very useful to work with OpenAPI spec, validations and other related stuff.
Validate the spec itselfTake a look at the following code:
QUESTION
I have 3 data layers (in geoJSON) which I added to my map. I want certain features to only show at a higher zoom level. The way I am going about it right now is through the feature styling as so:
...ANSWER
Answered 2020-Apr-20 at 01:43According to the documentation, the code you are using should work:
Available on all geometries
visible
: If true, the feature is visible.
However that doesn't seem to work as described (fiddle).
If I also set opacity (and strokeOpacity and fillOpacity) to 0; then both Markers, Polygons and Polylines all work as expected (opacity works for Markers, however it isn't documented):
Available on line geometries
strokeOpacity
: The stroke opacity between 0.0 and 1.0.Available on polygon geometries
fillOpacity
: The fill opacity between 0.0 and 1.0.strokeOpacity: The stroke opacity between 0.0 and 1.0. strokeWeight: The stroke width in pixels.
QUESTION
I am new to Go lang and trying to parse a JSON of following form and get all objects in records array.
...ANSWER
Answered 2020-Apr-16 at 12:38You can use encoding/json
package. First define variable type considering data structure of your json. Then use json.Unmarshal()
to convert your json string to your variable.
Example : for your given structure I used []map[string][]map[string]string
Code:
QUESTION
I've been trying to extract some JSON by unmarshalling my json response into structs, but I have no idea why it's not doing it properly. I've also tried gjson
but same result. Am I missing something here?
JSON Result:
...ANSWER
Answered 2020-Apr-07 at 12:07The problem is in the json.Unmarshall
call. It is returning an error: "invalid character 'ï' looking for beginning of value” from json.Unmarshal
As it is explained here: The server is sending you a UTF-8 text string with a Byte Order Mark (BOM). The BOM identifies that the text is UTF-8 encoded, but it should be removed before decoding.
This can be done with the following line (using package "bytes"):
QUESTION
I have consulted a lot of questions and I still can't find the solution to my problem.
I am doing an application and some of the classes have attributes of the geometry or point type, but when doing persistence tests, everything goes well until I try to save a point.
I want to add that I need to use this type of geometry (import org.locationtech.jts.geom.Point;) and all the solutions I find is with the type (import com.vividsolutions.jts.geom.Point;)
I think the problem is when it comes to serializer, I have one that should work fine but a function gives me an error.
pom.xml
...ANSWER
Answered 2020-Jan-24 at 10:15Finally I have not found the solution for locationtech geometry, maybe it is because it is newer than vividsolutions and with vividsolutions everything works correctly so my solving was using vividsolutions instead of locationtech.
Another fact that I have found and was wrong is that the serializer (which does not fail to change to vividsolutions) has nothing to do with the database, that is what hibernate is exclusively responsible for.
QUESTION
i want to update the markers on leaflet map without refreshing the page , say every 3 seconds. the code i have tried so far is as below:
...ANSWER
Answered 2019-Nov-29 at 08:48Create a function that reloads the markers. Also add the markers to a own group.
On every call the group is cleared and the markers are deleted. Then the new markers are added new to the group.
QUESTION
I have a json document of a Kubernetes Pod, here's an example: https://github.com/itaysk/kubectl-neat/blob/master/test/fixtures/pod-1-raw.json
I'd like to traverse spec.containers[i].volumeMounts
and delete those volumeMount objects where the .name
starts with "default-token-"
. Note that both containers
and volumeMounts
are arrays.
Using jq it took me 1 min to write this 1 line: try del(.spec.containers[].volumeMounts[] | select(.name | startswith("default-token-")))
. I'm trying to rewrite this in Go.
While looking for a good json library I settled on gjson/sjson.
Since sjson doesn't support array accessors (the #
syntax), and gjson doesn't support getting the path of result, I looked for workarounds.
I've tried using Result.Index
do delete the the result from the byte slice directly, and succeeded, but for the query I wrote (spec.containers.#.volumeMounts.#(name%\"default-token-*\")|0
) the Index is always 0 (I tried different variations of it, same result).
So currently I have some code 25 line code that uses gjson to get spec.containers.#.volumeMounts
and iterate it's way through the structure and eventually use sjson.Delete
to delete.
It works, but it feels way more complicated then I expected it to be.
Is there a better way to do this in Go? I'm willing to switch json library if needed.
EDIT: I would prefer to avoid using a typed schema because I may need to perform this on different types, for some I don't have the full schema.
(also removed some distracting details about my current implemetation)
ANSWER
Answered 2019-Aug-11 at 20:05The easiest thing to do here is parse the JSON into an object, work with that object, then serialise back into JSON.
Kubernetes provides a Go client library that defines the v1.Pod struct you can Unmarshal onto using the stdlib encoding/json:
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gjson uses encoding/json as default json package but you can change to jsoniter by build from other tags.
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