diff options
Diffstat (limited to 'docs/cmdline-opts')
| -rw-r--r-- | docs/cmdline-opts/form.d | 42 |
1 files changed, 26 insertions, 16 deletions
diff --git a/docs/cmdline-opts/form.d b/docs/cmdline-opts/form.d index d95d0cc38..8d04d4193 100644 --- a/docs/cmdline-opts/form.d +++ b/docs/cmdline-opts/form.d @@ -12,25 +12,35 @@ Content-Type multipart/form-data according to RFC 2388. For SMTP and IMAP protocols, this is the mean to compose a multipart mail message to transmit. -This enables uploading of binary -files etc. To force the 'content' part to be a file, prefix the file name with -an @ sign. To just get the content part from a file, prefix the file name with -the symbol <. The difference between @ and < is then that @ makes a file get -attached in the post as a file upload, while the < makes a text field and just -get the contents for that text field from a file. - -Example: to send an image to an HTTP server, where \&'profile' is the name of -the form-field to which portrait.jpg will be the input: +This enables uploading of binary files etc. To force the 'content' part to be +a file, prefix the file name with an @ sign. To just get the content part from +a file, prefix the file name with the symbol <. The difference between @ and < +is then that @ makes a file get attached in the post as a file upload, while +the < makes a text field and just get the contents for that text field from a +file. + +Tell curl to read content from stdin instead of a file by using - as +filename. This goes for both @ and < constructs. When stdin is used, the +contents is buffered in memory first by curl to determine its size and allow a +possible resend. Defining a part's data from a named non-regular file (such +as a named pipe or similar) is unfortunately not subject to buffering and will +be effectively read at transmission time; since the full size is unknown +before the transfer starts, such data is sent as chunks by HTTP and rejected +by IMAP. + +Example: send an image to an HTTP server, where \&'profile' is the name of the +form-field to which the file portrait.jpg will be the input: curl -F profile=@portrait.jpg https://example.com/upload.cgi -To read content from stdin instead of a file, use - as the filename. This goes -for both @ and < constructs. If stdin is not attached to a regular file, it is -buffered first to determine its size and allow a possible resend. Defining a -part's data from a named non-regular file (such as a named pipe or similar) is -unfortunately not subject to buffering and will be effectively read at -transmission time; since the full size is unknown before the transfer starts, -data is sent as chunks by HTTP and rejected by IMAP. +Example: send a your name and shoe size in two text fields to the server: + + curl -F name=John -F shoesize=11 https://example.com/ + +Example: send a your essay in a text field to the server. Send it as a plain +text field, but get the contents for it from a local file: + + curl -F "story=<hugefile.txt" https://example.com/ You can also tell curl what Content-Type to use by using 'type=', in a manner similar to: |