JsonPath
pup
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JsonPath | pup | |
---|---|---|
10 | 52 | |
8,616 | 7,992 | |
1.2% | - | |
6.4 | 0.0 | |
19 days ago | 29 days ago | |
Java | HTML | |
Apache License 2.0 | MIT License |
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JsonPath
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Refactoring Toward Configurability
For this example, we will use JSON files to encode the application's behavior and query it using JSONPath.
- Ask HN: What is something you built but never marketed?
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Running Jenkins on PR in Azure DevOps
As shown above in order to access the root element of a JSON payload we can create variable (data) and assign the $ (using Json Path convention) in the expression tab.
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what's the best way to search all child objects in java?
You certainly could implement a recursive traversal, as /u/raevnos suggested, but it might be easier to use something like JsonPath to do it for you.
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Query with jsonpath
If you work with REST interfaces for any amount of time, you'll run into "json path". You can extract and manipulate the json received with an API call.
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How would experienced devs handle checking JSON objects for specific property condition?
Look into JSONPath and its one Java implementation.
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Like JQ, but for HTML
is anyone else using the https://github.com/json-path/JsonPath over the jq route?
I hope we standardize on some jq query language, like we have with a base set of SQL syntax
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Which JSON parsers do not require me to duplicate the document model?
I use JsonPath for this. This fits my use case of picking apart JSON responses from APIs in Cucumber tests, which is based on textual descriptions and I'm not using Java classes for the mapping.
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Serverless Complex Event Processing with Apache Flink
flatMap — A Map function (can be of Rich type if need be) that extracts data from the input event which is a stringified JSON object. Of the three flapMaps, two of them extract & parse the relevant data into a defined model (the data modelling is based on POJO — plain old java object classes.) using JsonPath, the third flapMap is a RichCoFlatMapFunction that determines after correlating events from the two sources whether it should be forwarded to the sink or not.
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Traversing nested data-structures in various languages
JSONPath confers pretty much the same concept onto JSON too with much the same syntax. There are JPath implementations for most languages now.
pup
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script to download some notes
And lnk=$(curl -s https://www.selfstudys.com$url |grep "PDFFlip" | cut -d '"' -f 6) to lnk=$(curl -s https://www.selfstudys.com$url | pup "div#PDFF attr{source}" ) here pup will print content of source attribute from div tag with id PDFF i dont know that much about html & css so this is what i came up with. but i am sure you can also select class & make list of suburls from them. check out the video from bugswriter on pup or read docs from git hub for more info github link: https://github.com/ericchiang/pup
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What monitoring tool do you use or recommend?
jq is pretty amazing. If you are comfortable with its jquery-like CSS selector syntax, then I should also mention a couple similar cli utilities that apply it to HTML: htmlp and pup.
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Creating a data scraper as a beginner?
Regex is not a great tool for parsing web pages. Open up a browser dev tools window and select a bit of the page. Right click > copy... XPath expression or CSS selector. A proper web scraping tool will accept either of those. No muss, no fuss. You can even use simple command line tools: xpath or pup
- December 5, 2022: FLiP Stack Weekly
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Show HN: A tool like jq, but for parsing HTML
This is HTML to JSON, written in Rust, and there's also pup[1] which I found out about just the other day on HN[2] which uses a very similar syntax (CSS selectors) but outputs HTML and is written in Go.
I can see room for both though it would interesting to have a more detailed comparison to go on (e.g. types of HTML, speed etc).
- Pup: Parsing HTML at the command line
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pup: Parsing HTML at the Command Line
It looks like the project became inactive for a bit and there are alternatives such as htmlq, etc. https://github.com/ericchiang/pup/issues/150
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Converting field before delimiter to uppercase and how to replace with multiple newlines
Another tool worth mentioning is pup - it can produce JSON output which means you can pipe it to jq
What are some alternatives?
Jolt - JSON to JSON transformation library written in Java.
htmlq - Like jq, but for HTML.
fastjson - FASTJSON 2.0.x has been released, faster and more secure, recommend you upgrade.
xidel - Command line tool to download and extract data from HTML/XML pages or JSON-APIs, using CSS, XPath 3.0, XQuery 3.0, JSONiq or pattern matching. It can also create new or transformed XML/HTML/JSON documents.
JsonSurfer - A streaming JsonPath processor in Java
gron - Make JSON greppable!
JSLT - JSON query and transformation language
yq - Command-line YAML, XML, TOML processor - jq wrapper for YAML/XML/TOML documents
sawmill - Sawmill is a JSON transformation Java library
cascadia - Go cascadia package command line CSS selector
jsoup - jsoup: the Java HTML parser, built for HTML editing, cleaning, scraping, and XSS safety.
ddgr - :duck: DuckDuckGo from the terminal