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59 lines
3.0 KiB
Groff
59 lines
3.0 KiB
Groff
.\" **************************************************************************
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.\" * _ _ ____ _
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.\" * Project ___| | | | _ \| |
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.\" * / __| | | | |_) | |
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.\" * | (__| |_| | _ <| |___
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.\" * \___|\___/|_| \_\_____|
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.\" *
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.\" * Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
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.\" *
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.\" * This software is licensed as described in the file COPYING, which
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.\" * you should have received as part of this distribution. The terms
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.\" * are also available at https://curl.se/docs/copyright.html.
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.\" *
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.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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.\" * copies of the Software, and permit persons to whom the Software is
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.\" * furnished to do so, under the terms of the COPYING file.
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.\" *
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.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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.\" * KIND, either express or implied.
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.\" *
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.\" **************************************************************************
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.TH libcurl 3 "19 Sep 2014" "libcurl" "libcurl easy interface"
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.SH NAME
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libcurl-easy \- easy interface overview
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.SH DESCRIPTION
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When using libcurl's "easy" interface you init your session and get a handle
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(often referred to as an "easy handle"), which you use as input to the easy
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interface functions you use. Use \fIcurl_easy_init(3)\fP to get the handle.
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You continue by setting all the options you want in the upcoming transfer, the
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most important among them is the URL itself (you can't transfer anything
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without a specified URL as you may have figured out yourself). You might want
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to set some callbacks as well that will be called from the library when data
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is available etc. \fIcurl_easy_setopt(3)\fP is used for all this.
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\fICURLOPT_URL(3)\fP is only option you really must set, as otherwise there
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can be no transfer. Another commonly used option is \fICURLOPT_VERBOSE(3)\fP
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that will help you see what libcurl is doing under the hood, very useful when
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debugging for example. The \fIcurl_easy_setopt(3)\fP man page has a full index
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of the over 200 available options.
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If you at any point would like to blank all previously set options for a
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single easy handle, you can call \fIcurl_easy_reset(3)\fP and you can also
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make a clone of an easy handle (with all its set options) using
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\fIcurl_easy_duphandle(3)\fP.
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When all is setup, you tell libcurl to perform the transfer using
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\fIcurl_easy_perform(3)\fP. It will then do the entire operation and won't
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return until it is done (successfully or not).
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After the transfer has been made, you can set new options and make another
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transfer, or if you're done, cleanup the session by calling
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\fIcurl_easy_cleanup(3)\fP. If you want persistent connections, you don't
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cleanup immediately, but instead run ahead and perform other transfers using
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the same easy handle.
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.SH "SEE ALSO"
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.BR curl_easy_init "(3)," curl_easy_cleanup "(3)," curl_easy_setopt "(3), "
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.BR libcurl-errors "(3), " libcurl-multi "(3), " libcurl "(3) "
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