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Add an example of using HTTPRequest to contact a REST API

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We already had an example to download and display an image,
but having another example dedicated to REST APIs doesn't hurt.
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Hugo Locurcio 2019-12-24 23:20:27 +01:00
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doc/classes/HTTPRequest.xml
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@ -6,6 +6,27 @@
<description>
A node with the ability to send HTTP requests. Uses [HTTPClient] internally.
Can be used to make HTTP requests, i.e. download or upload files or web content via HTTP.
[b]Example of contacting a REST API and printing one of its returned fields:[/b]
[codeblock]
func _ready():
# Create an HTTP request node and connect its completion signal.
var http_request = HTTPRequest.new()
add_child(http_request)
http_request.connect("request_completed", self, "_http_request_completed")
# Perform the HTTP request. The URL below returns some JSON as of writing.
var error = http_request.request("https://httpbin.org/get")
if error != OK:
push_error("An error occurred in the HTTP request.")
# Called when the HTTP request is completed.
func _http_request_completed(result, response_code, headers, body):
var response = parse_json(body.get_string_from_utf8())
# Will print the user agent string used by the HTTPRequest node (as recognized by httpbin.org).
print(response.headers["User-Agent"])
[/codeblock]
[b]Example of loading and displaying an image using HTTPRequest:[/b]
[codeblock]
func _ready():