How to do HTTP-request/call with JSON payload from command-line?
LinuxJsonCommand LineWeb CrawlerLinux Problem Overview
What's the easiest way to do a JSON call from the command-line? I have a website that does a JSON call to retrieve additional data.
The Request Payload as shown in Google Chrome looks like this:
{"version": "1.1", "method":"progr","id":2,"params":{"call":...} }
It's about doing the call from (preferably) linux command line and retrieving the JSON content, not about parsing the incoming JSON data.
Linux Solutions
Solution 1 - Linux
You could use wget as well:
wget -O- --post-data='{"some data to post..."}' \
--header='Content-Type:application/json' \
'http://www.example.com:9000/json'
Calling wget with the option -O providing the - (space in between will be ignored, so it could also be written as -O -) to it as its value will cause wget to output the HTTP response directly to standard output instead into a file. The long option name for that is --output-document=file.
Solution 2 - Linux
Use curl, assuming the data is POST'ed, something like
curl -X POST http://example.com/some/path -d '{"version": "1.1", "method":"progr","id":2,"params":{"call":...} }'
If you're just retrieving the data with a GET , and don't need to send anything bar URL parameters,
you'd just run curl http://example.com/some/path
Solution 3 - Linux
You could use wget with post-file as well, which I found useful.
wget --post-file=[file] --header=Content-Type:application/json [URL]
You can keep the content in the file and the content will be sent as post data.
Solution 4 - Linux
curl --request POST \
--url http://localhost:8099/someservice/services/boo \
--header 'authorization: Basic dkfhsdlepwmdseA==' \
--header 'cache-control: no-cache' \
--header 'content-type: application/json' \
--data '{"value": "24.127.1212.123"}'
Solution 5 - Linux
Have you looked at curl? It's very good at facilitating HTTP GET/POST requests via the command line.
e.g. (for a GET request):
C:\WINDOWS>curl "http://search.twitter.com/search.json?q=twitterapi&result_type=
popular"
{"results":[{"from_user_id_str":"32316068","profile_image_url":"http://a2.twimg.
com/profile_images/351010682/twitblock_profile_normal.png","created_at":"Thu, 25
Nov 2010 14:37:46 +0000","from_user":"twitblockapp","id_str":"7805146834669569"
,"metadata":{"result_type":"popular","recent_retweets":10},"to_user_id":null,"te
xt":"blocking and reporting functions are currently failing. @TwitterAPI have be
en notified. http://j.mp/id5w3m","id":7805146834669569,"from_user_id":32316068,"
geo":null,"iso_language_code":"en","to_user_id_str":null,"source":"<a href=&q
uot;http://twitter.com" rel="nofollow">Tweetie for Mac</a&g
t;"}],"max_id":9607558079713280,"since_id":0,"refresh_url":"?since_id=9607558079
713280&q=twitterapi","results_per_page":15,"page":1,"completed_in":0.012698,"sin
ce_id_str":"0","max_id_str":"9607558079713280","query":"twitterapi"}