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error 404 libUrlSetExpect100 | revDocs | RunRev
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libUrlSetExpect100 limit
Desktop, Web and Server
Platform Support
MacOS,Mac OS X,Windows,Linux

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limit is a number of bytes.

When called, subsequent POST requests will add an "Expect: 100-continue" field to the http headers when the data to be posted excedes the limit. The data won't be written to the socket until a 100 Continue response is received from the server.

This can be useful when posting large amounts of data and where there is a risk of the POST failing (because of failed authentication, or whatever). For example, if authentication is required, the data won't be written until after the authentication has cleared.

Important! The libUrlSetExpect100command is part of the Internet library. To ensure that the keyword works in a standalone application, you must include this custom library when you create your standalone. In the Inclusions section of the Standalone Application Settings window, make sure "Internet Library" is selected in the list of script libraries.

Note: When included in a standalone application, the Internet library is implemented as a hidden group and made available when the group receives its first openBackground message. During the first part of the application's startup process, before this message is sent, the httpkeyword is not yet available. This may affect attempts to use this keyword in startup, preOpenStack, openStack, or preOpenCardhandlers in the main stack. Once the application has finished starting up, the library is available and the httpkeyword can be used in any handler.

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