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5 Curl Commands to download Files (Examples) - TecAdmin
Online tool to convert your CSV or TSV formatted data to JSON. 1) Copy/paste or upload your Excel data (CSV or TSV) to convert it to JSON. 2) Set up options: parse numbers, transpose your data, or output an object instead of an array. JSON has become the lingua franca for exchanging data on the web, and we (as developers) need to know how to process JSON data so we can be positioned for the present and for the future. Today, we’re zooming in and learning about consuming Web API JSON data from bash using curl and jq. Article contents. Prepare environment. Convert JSON to CSV using this online tool. Upload your JSON file by clicking the green button (or paste your JSON text / URL into the textbox) (Press the cog button on the right for advanced settings) Download the resulting CSV file when prompted; Open your CSV file in Excel (or Open Office).
Curl download a json file in csv format
Hey everyone! I decided to put a few extra batteries in the background color of the article image above. JSON has become the lingua franca for exchanging data on the web, and we as developers need to know how to process JSON data so we can be positioned for the present and for the future. My instructions will, however, be geared toward Debian-based Linux distros since we will be using the apt command.
As a first step, log into your Linux system and launch a terminal session to verify that curl is installed if you are running Raspbian, curl ships with the base image :.
If nothing is returned, you will need to install curl:. There you have it. Perfect, we are ready to create our first script to retrieve the current weather from our cloud-based microservice! This command accepts two parameters from the command line for the location line 3 and degree type F or C on line 4.
We invoke curl using curl -sS. These parameters accomplish the following:. See the curl man page for additional options available. Our current weather forecast has been returned, but it is quite messy and difficult to interpret.
Modify your existing weather. This script is identical to our last script, but we now pipe our results through jq. The jq. Ah, yes. Our results are looking much more readable! The jq command is capable of a lot more as we soon will see. Notice that we just curl download a json file in csv format the last line of our script to return just the temperature attribute of our JSON object. You should see the following results:. What if we want to return more than one attribute from our JSON current weather object?
We made a couple of changes to the last line of our script, curl download a json file in csv format. We invoke jq with -r raw output so the result is no longer formatted as a JSON string with quotes. Secondly, we use a pipe in jq and get the degType and skytext JSON attributes in addition to temperature.
This will also give us a chance to learn how to process arrays of JSON objects. As you can see, the forecast weather function returns a JSON object containing an array of five objects providing the forecast weather data. What if we want to just print one attribute from each of the JSON objects in the array?
Once again, we use jq -r to remove the double quotes from each JSON object returned. Here are the results:. We see now that jq is using a pipe through so the attributes of each JSON object can be displayed. You will now see results that look something like this:. As you can see on the last line, we only return the first two elements [0,1] in the array of JSON objects. We can also select only certain objects in the JSON array to be returned based on a criteria.
This jq syntax selects objects in the JSON array where the precipitation is forecasted to be greater than zero. Please note that. How about that? It rarely rains in San Diego, but it looks like it might actually rain on Saturday. You bet! How about sorting in descending order? Yes, indeed with the help of the jq reverse function…. You may also notice that we added a final finishing curl download a json file in csv format to our script and included some logic at the top to ensure that at least one parameter is supplied.
If not, command usage text is provided. You could, for example, add the following line to your. Please note that this will provide you with a weather forecast every time you log in via ssh, but it would not appear when launching terminal sessions through the Linux desktop environment. There are many more features of jq that we have not even had time to cover.
Follow thisDaveJ Dave Johnson on Twitter to stay up to date with the latest tutorials and tech articles. Creating Node. Nice tutorial! Dylan, thanks for letting me know! Thanks for letting me know! I had an issue with the Weather API used in the examples, and this issue has been resolved.
Perhaps this caused the issue you experienced with the invalid numeric literal. Been looking for an example where some web service API provides an array of data back, then an action other than viewing on a console is taken on the data.
Would like to use the data retrieved in an array and for each document in the array invoke an executable with the data points in the array as curl download a json file in csv format to the executable. If there are 10 items in the array the executable would be invoked 10 times.
Thanks for asking this excellent question. I created a blog post here in an attempt to answer it. Your email address will not be published. Skip to content Hey everyone! Finally, in line 10, we echo the downloaded content to the terminal, curl download a json file in csv format. You should see the following results: "67" Very nice! A weather forecast the only returns the day of the week is not very insightful. We can do that too:! Yes, indeed with the help of the jq reverse function…!
The command line capability of the jq command is downright amazing! Additional articles Creating Node. Leave a Reply Cancel reply Your email address will not be published. This site uses cookies: Find out more, curl download a json file in csv format. Okay, thanks.
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, time: 17:13Curl download a json file in csv format
Online tool to convert your CSV or TSV formatted data to JSON. 1) Copy/paste or upload your Excel data (CSV or TSV) to convert it to JSON. 2) Set up options: parse numbers, transpose your data, or output an object instead of an array. Apply the tips and examples as a refresher on how to export Elasticsearch documents as CSV, HTML, and JSON files in Python using Pandas. Just the Code. Here’s the entire script for exporting Elasticsearch CSV Python, Elasticsearch JSON Python, plus exporting to HTML formats. Nov 27, · Parse JSON data using jq and curl from command line. What is JSON? JSON, or JavaScript Object Notation, is a minimal, readable format for .
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