/usr/lib/swipl/library/http/http_client.pl
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  • library
    • http
      • http_unix_daemon.pl -- Run SWI-Prolog HTTP server as a Unix system daemon
      • thread_httpd.pl -- Threaded HTTP server
      • http_wrapper.pl -- Server processing of an HTTP request
      • http_header.pl -- Handling HTTP headers
      • http_stream.pl -- HTTP Streams
      • http_exception.pl -- Map Prolog exceptions to HTTP errors
      • http_path.pl -- Abstract specification of HTTP server locations
      • http_dispatch.pl -- Dispatch requests in the HTTP server
      • http_host.pl -- Obtain public server location
      • http_ssl_plugin.pl -- SSL plugin for HTTP libraries
      • http_json.pl -- HTTP JSON Plugin module
      • http_client.pl -- HTTP client library
        • http_get/3
        • http_delete/3
        • http_post/4
        • http_put/4
        • http_patch/4
        • http_read_data/3
        • http_convert_data/4
        • http_disconnect/1
        • post_data_hook/3
      • json.pl -- Reading and writing JSON serialization
      • http_open.pl -- HTTP client library
      • http_parameters.pl -- Extract parameters (GET and POST) from HTTP requests
      • http_multipart_plugin.pl -- Multipart form-data plugin
      • http_hook.pl -- HTTP library hooks
      • html_write.pl -- Write HTML text
      • html_quasiquotations.pl -- HTML quasi quotations
      • js_write.pl -- Utilities for including JavaScript
      • js_grammar.pl -- JavaScript grammar
      • http_server_files.pl -- Serve files needed by modules from the server
      • hub.pl -- Manage a hub for websockets
      • websocket.pl -- WebSocket support
      • http_session.pl -- HTTP Session management
      • mimetype.pl -- Determine mime-type for a file
      • http_cors.pl -- Enable CORS: Cross-Origin Resource Sharing
      • html_head.pl -- Automatic inclusion of CSS and scripts links
      • jquery.pl -- Provide JQuery
      • term_html.pl -- Represent Prolog terms as HTML
      • http_dyn_workers.pl -- Dynamically schedule HTTP workers.
      • http_authenticate.pl -- Authenticate HTTP connections using 401 headers
      • http_digest.pl -- HTTP Digest authentication
      • json_convert.pl -- Convert between JSON terms and Prolog application terms
      • mimepack.pl -- Create a MIME message
 http_read_data(+Request, -Data, +Options) is det
Read data from an HTTP connection and convert it according to the supplied to(Format) option or based on the Content-type in the Request. The following options are supported:
to(Format)
Convert data into Format. Values are:
  • stream(+WriteStream)) Append the content of the message to Stream
  • atom Return the reply as an atom
  • string Return the reply as a string
  • codes Return the reply as a list of codes
form_data(AsForm)
input_encoding(+Encoding)
on_filename(:CallBack)
These options are implemented by the plugin library(http/http_multipart_plugin) and apply to processing multipart/form-data content.
content_type(+Type)
Overrule the content-type that is part of Request as a work-around for wrongly configured servers.

Without plugins, this predicate handles

'application/x-www-form-urlencoded'
Converts form-data into a list of Name=Value terms.
'application/x-prolog'
Converts data into a Prolog term.
Arguments:
Request- is a parsed HTTP request as returned by http_read_request/2 or available from the HTTP server's request dispatcher. Request must contain a term input(In) that provides the input stream from the HTTP server.