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https://github.com/SquidDev-CC/CC-Tweaked
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40 lines
1.2 KiB
Markdown
40 lines
1.2 KiB
Markdown
---
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module: [kind=event] http_failure
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see: http.request To send an HTTP request.
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---
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The @{http_failure} event is fired when an HTTP request fails.
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This event is normally handled inside @{http.get} and @{http.post}, but it can still be seen when using @{http.request}.
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## Return Values
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1. @{string}: The event name.
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2. @{string}: The URL of the site requested.
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3. @{string}: An error describing the failure.
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4. @{http.Response|nil}: A response handle if the connection succeeded, but the server's response indicated failure.
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## Example
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Prints an error why the website cannot be contacted:
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```lua
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local myURL = "https://does.not.exist.tweaked.cc"
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http.request(myURL)
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local event, url, err
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repeat
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event, url, err = os.pullEvent("http_failure")
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until url == myURL
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print("The URL " .. url .. " could not be reached: " .. err)
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```
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Prints the contents of a webpage that does not exist:
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```lua
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local myURL = "https://tweaked.cc/this/does/not/exist"
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http.request(myURL)
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local event, url, err, handle
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repeat
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event, url, err, handle = os.pullEvent("http_failure")
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until url == myURL
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print("The URL " .. url .. " could not be reached: " .. err)
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print(handle.getResponseCode())
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handle.close()
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```
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