mirror of
https://github.com/moparisthebest/curl
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04c03416e6
This commit adds support to generate JSON via the writeout feature:
-w "%{json}"
It leverages the existing infrastructure as much as possible. Thus,
generating the JSON on STDERR is possible by:
-w "%{stderr}%{json}"
This implements a variant of
https://github.com/curl/curl/wiki/JSON#--write-out-json.
Closes #4870
158 lines
5.3 KiB
Makefile
158 lines
5.3 KiB
Makefile
Long: write-out
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Short: w
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Arg: <format>
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Help: Use output FORMAT after completion
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---
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Make curl display information on stdout after a completed transfer. The format
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is a string that may contain plain text mixed with any number of
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variables. The format can be specified as a literal "string", or you can have
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curl read the format from a file with "@filename" and to tell curl to read the
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format from stdin you write "@-".
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The variables present in the output format will be substituted by the value or
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text that curl thinks fit, as described below. All variables are specified as
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%{variable_name} and to output a normal % you just write them as %%. You can
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output a newline by using \\n, a carriage return with \\r and a tab space with
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\\t.
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The output will be written to standard output, but this can be switched to
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standard error by using %{stderr}.
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.B NOTE:
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The %-symbol is a special symbol in the win32-environment, where all
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occurrences of % must be doubled when using this option.
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The variables available are:
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.RS
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.TP 15
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.B content_type
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The Content-Type of the requested document, if there was any.
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.TP
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.B filename_effective
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The ultimate filename that curl writes out to. This is only meaningful if curl
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is told to write to a file with the --remote-name or --output
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option. It's most useful in combination with the --remote-header-name
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option. (Added in 7.26.0)
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.TP
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.B ftp_entry_path
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The initial path curl ended up in when logging on to the remote FTP
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server. (Added in 7.15.4)
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.TP
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.B http_code
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The numerical response code that was found in the last retrieved HTTP(S) or
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FTP(s) transfer. In 7.18.2 the alias \fBresponse_code\fP was added to show the
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same info.
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.TP
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.B http_connect
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The numerical code that was found in the last response (from a proxy) to a
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curl CONNECT request. (Added in 7.12.4)
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.TP
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.B http_version
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The http version that was effectively used. (Added in 7.50.0)
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.TP
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.B json
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A JSON object with all available keys.
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.TP
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.B local_ip
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The IP address of the local end of the most recently done connection - can be
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either IPv4 or IPv6 (Added in 7.29.0)
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.TP
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.B local_port
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The local port number of the most recently done connection (Added in 7.29.0)
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.TP
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.B num_connects
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Number of new connects made in the recent transfer. (Added in 7.12.3)
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.TP
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.B num_redirects
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Number of redirects that were followed in the request. (Added in 7.12.3)
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.TP
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.B proxy_ssl_verify_result
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The result of the HTTPS proxy's SSL peer certificate verification that was
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requested. 0 means the verification was successful. (Added in 7.52.0)
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.TP
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.B redirect_url
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When an HTTP request was made without --location to follow redirects (or when
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--max-redir is met), this variable will show the actual URL a redirect
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\fIwould\fP have gone to. (Added in 7.18.2)
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.TP
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.B remote_ip
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The remote IP address of the most recently done connection - can be either
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IPv4 or IPv6 (Added in 7.29.0)
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.TP
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.B remote_port
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The remote port number of the most recently done connection (Added in 7.29.0)
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.TP
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.B scheme
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The URL scheme (sometimes called protocol) that was effectively used (Added in 7.52.0)
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.TP
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.B size_download
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The total amount of bytes that were downloaded.
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.TP
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.B size_header
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The total amount of bytes of the downloaded headers.
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.TP
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.B size_request
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The total amount of bytes that were sent in the HTTP request.
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.TP
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.B size_upload
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The total amount of bytes that were uploaded.
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.TP
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.B speed_download
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The average download speed that curl measured for the complete download. Bytes
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per second.
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.TP
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.B speed_upload
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The average upload speed that curl measured for the complete upload. Bytes per
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second.
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.TP
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.B ssl_verify_result
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The result of the SSL peer certificate verification that was requested. 0
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means the verification was successful. (Added in 7.19.0)
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.TP
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.B stderr
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From this point on, the --write-out output will be written to standard
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error. (Added in 7.63.0)
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.TP
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.B stdout
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From this point on, the --write-out output will be written to standard output.
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This is the default, but can be used to switch back after switching to stderr.
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(Added in 7.63.0)
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.TP
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.B time_appconnect
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The time, in seconds, it took from the start until the SSL/SSH/etc
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connect/handshake to the remote host was completed. (Added in 7.19.0)
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.TP
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.B time_connect
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The time, in seconds, it took from the start until the TCP connect to the
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remote host (or proxy) was completed.
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.TP
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.B time_namelookup
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The time, in seconds, it took from the start until the name resolving was
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completed.
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.TP
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.B time_pretransfer
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The time, in seconds, it took from the start until the file transfer was just
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about to begin. This includes all pre-transfer commands and negotiations that
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are specific to the particular protocol(s) involved.
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.TP
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.B time_redirect
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The time, in seconds, it took for all redirection steps including name lookup,
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connect, pretransfer and transfer before the final transaction was
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started. time_redirect shows the complete execution time for multiple
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redirections. (Added in 7.12.3)
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.TP
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.B time_starttransfer
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The time, in seconds, it took from the start until the first byte was just
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about to be transferred. This includes time_pretransfer and also the time the
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server needed to calculate the result.
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.TP
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.B time_total
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The total time, in seconds, that the full operation lasted.
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.TP
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.B url_effective
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The URL that was fetched last. This is most meaningful if you've told curl
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to follow location: headers.
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.RE
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.IP
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If this option is used several times, the last one will be used.
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