HTTPRequest>URL,[LocalFilename],Method,[POST_Data],Result_Variable[,ProxyServer,ProxyPort,ProxyUsername,ProxyPassword]
Not supported in Macro Scheduler Lite.
Performs an HTTP request. E.g. fetch a web page, submit a form post, or interact with an API.
|
URL |
URL of document to retrieve. Can be HTTP or HTTPS. e.g. https://www.google.com/ |
|
LocalFileName |
Optional (may be left blank) - local file to save response to. |
|
Method |
GET, POST, PUT, PATCH or DELETE |
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Post_Data |
Data to Post to URL if using POST method. Use name=value pairs separated by '&' or for JSON first set HTTP_POSTJSON to 1. See examples below. |
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Result_Variable |
Stores result of operation. If LocalFileName is not specified and the operation is successful this will contain the HTML returned. If LocalFileName was specified and the data was successfully written to the file Result_Variable will be blank. Otherwise it will contain an error message. |
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ProxyServer |
Optional - if using a proxy server set this to domain or IP address of proxy server. |
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ProxyPort |
Optional - if using a proxy server set to port number of proxy server. |
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ProxyUsername |
Optional - if using a proxy server that needs a username. |
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ProxyPassword |
Optional - if using a proxy server that needs a password. |
Posting Files
To post files use the HTTP_POSTFILES variable. HTTP_POSTFILES takes name=value pairs separated by '&' in the same format as Post_Data but for 'file' parameters. Post_Data can be empty if only files are being posted. See examples below.
Custom Headers
Let>HTTP_CUSTOM_HEADERS=Authorization: bearer SECRET_PASSWORD%CRLF%Accept: application/json
Timeouts
By default there is no timeout for the HTTPRequest command and requests will wait indefinitely if the server fails to respond. To change this set the HTTP_TIMEOUT value to the number of seconds to wait.
Redirects
By default HTTPRequest will automatically resolve redirects. To disable this behaviour set HTTP_REDIRECTS to 0.
Basic Authentication
For basic authentication where a username and password is required by the server before the request will complete put the username and password in the URL using the following format: http://username:[email protected]/etc.etc
SSL
For SSL (https) connections ensure the URL starts with "https" or set HTTP_SSL to 1. To use SSL the OpenSSL binaries are required. Version 1.0.2q is installed with Macro Scheduler.
If you need to explicitly set the TLS version to use with SSL set TLS_VER to one of the following values:
|
1 |
TLS v1.0 |
|
11 |
TLS v1.1 |
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12 |
TLS v1.2 |
Other option variables:
- Set the HTTP_CHARSET variable to a character encoding name to override the default character set
- Set the HTTP_USERAGENT variable to override the user agent string that HTTPRequest sends
Abbreviation : HTT
Examples
The following line does a simple GET request and saves the resulting HTML to a variable called HTMLResponse:
HTTPRequest>https://www.mjtnet.com,,GET,,HTMLResponse
The following line does the same thing but saves the output to a file instead of a variable:
HTTPRequest>https://www.mjtnet.com,d:\HTML\mjtnet.html,GET,,HTMLResponse
This demonstrates a POST operation, sending name=value pairs to the page:
Let>[email protected]&name=Joe Bloggs
HTTPRequest>https://www.someplace.com/someform.html,,POST,PostData,HTMLResponse
Posting JSON:
Let>HTTP_POSTJSON=1
Let>json_data= { "name":"fred","age":36 }
HTTPRequst>https://api.server.io/userInfo,,POST,json_data,HTMLResponse
Posting files:
Let>HTTP_POSTFILES=upload1=c:\stuff\logo.gif
HTTPRequest>http://www.someplace.com/form.html,,POST,,HTMLResponse