I'm trying to receive some data in csv format, what I read is that StrongLoop only works with json data. So can I receive csv and transform to json to process the data?
Thanks.
This isn't a StrongLoop specific question. It is a general Node.js and data question. As such, I will answer in a generic fashion, but it is applicable to StrongLoop.
You will need to use a library to convert the delimited file into a JavaScript object. There are many packages on npm for reading/parsing/transforming/etc. CSV files: search npm.
The package that I have used extensively is David's CSV parser.
These libraries will allow you to parse and transform CSV into JavaScript objects (JSON).
Beware, however, that most CSV that I have dealt with does not conform to well formatted CSV. They don't properly escape quotes, quote strings with delimiters, etc.
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we want Json format from binary content of pdf file using node.js.
Actually we are getting binary content of pdf from 3 party api response , using this response we will save in our database ,so give me working code for convert binary pdf format to json format
in simple words
Please let us know , "any working code so i have just pass binary data got json data" .
The JSON format natively doesn't support binary data.
Use Base64 or base85
I think the best you can do space-wise is base85 which represents four bytes as five characters. However, this is only a 7% improvement over base64, it's more expensive to compute, and implementations are less common than for base64 so it's probably not a win.
I've got a question. Is it possible to parse xls files by a coordinates? I've searched some npm modules but the biggest part of them are converting to json or csv. So does anybody know how to do that?
use node-xlsx
It will help you to parse ".xlsx" i.e.
const workSheetsFromFile=xlsx.parse(__dirname+'/myFile.xlsx');
Read the documentation for more functionality.
I need to read xlsx in nodejs. Xlsx contains text with accents and apostrophes and so on. Then i have to save the text in json file.
What are the best practices to perform that task?
Stage 1 - take a look at this module node-xlsx or more robust and possibly better for your needs xlsx.
Stage 2 - Writing the file to JSON - if the module can return a JSON format then great. If you use xlsx it has an option to JSON --> take a look here.
Since you may need to actually strip and/or protect special accents etc. you may need to validate the data which is returned before producing a JSON file.
As to actually writing a JSON file, there are a huge amount of NPM modules for the task.
I want to compare the data in two .csv files.Have to compare the updated data between these two .csv file using nodejs.
Is ther any possibilities to do it in Nodejs.
Thanks,I am very newbie to this.
It will be easiest using one of the following modules:
https://www.npmjs.com/package/csv
https://www.npmjs.com/package/tsv
or other that you find in:
https://www.npmjs.com/browse/keyword/csv
https://www.npmjs.com/browse/keyword/tsv
(don't worry if it's CSV or TSV - just make sure that you use the correct delimiter which is comma in your case).
I'm trying to make simple Python 3 program to read weather information from XML web source, convert it into Python-readable object (maybe dictionary) and process it (for example visualize multiple observations into graph).
Source of data is national weather service's (direct translation) xml file at link provided in code.
What's different from typical XML parsing related question in Stack Overflow is that there are repetitive tags without in-tag identificator (<station> tags in my example) and some with (1st line, <observations timestamp="14568.....">). Also I would like to try parse it straight from website, not local file. Of course, I could create local temporary file too.
What I have so far, is simply loading script, that gives string containing xml code for both forecast and latest weather observations.
from urllib.request import urlopen
#Read 4-day forecast
forecast= urlopen("http://www.ilmateenistus.ee/ilma_andmed/xml/forecast.php").read().decode("iso-8859-1")
#Get current weather
observ=urlopen("http://www.ilmateenistus.ee/ilma_andmed/xml/observations.php").read().decode("iso-8859-1")
Shortly, I'm looking for as universal as possible way to parse XML to Python-readable object (such as dictionary/JSON or list) while preserving all of the information in XML-file.
P.S I prefer standard Python 3 module such as xml, which I didn't understand.
Try xmltodict package for simple conversion of XML structure to Python dict: https://github.com/martinblech/xmltodict