call.jsonlib.com

A small library of json calls.

Access using jsonlib.js (source and docs at jsonlib-src.js, and examples here), or using any ajax library that can make jsonp calls.

All calls below accept an optional "callback" cgi parameter for jsonp support, and all calls set "Access-Control-Allow-Origin: *" for cross-domain XHR support.

/ip - Returns the caller's ip address.

Example: http://call.jsonlib.com/ip.

/time - Returns the server's time in seconds since epoch.

Example: http://call.jsonlib.com/time?callback=cb8.

/echo - Echoes the cgi parameters as json.

Example: http://call.jsonlib.com/echo?a=first&b=second&callback=cb.

/urandom - Provides secure random bytes from the server.

Example: http://call.jsonlib.com/urandom?bytes=10&format=array&callback=seedrandom.

/fetch - Does a raw HTTP fetch.

Example: http://call.jsonlib.com/fetch?url=http://google.com/.

CGI parameters:

• url (required) - the URL to fetch.
• data (optional) - if supplied, the data will be POSTed
• header (multiple allowed) - an http header in the form Http-Request-Header:Value
• select (optional) - CSS selector syntax to select elements for the result
• extract (optional; use with select) - 'attr_attrname' or 'text' to extract only an attribute or text, or 'dict' to extract each tag as a dictionary
• encoding (optional) - preferred text encoding: 'auto' (default) uses HTTP headers and content sniffing; 'nosniff' skips sniffing.
• method (optional) - set to GET or POST or PUT or DELETE to specify HTTP method

Author: David Bau