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<?xml version="1.0" encoding="UTF-8" ?>
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<class name= "HTTPRequest" inherits= "Node" version= "4.0" >
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<brief_description >
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A node with the ability to send HTTP(S) requests.
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</brief_description>
<description >
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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.
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[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]
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[b]Example of loading and displaying an image using HTTPRequest:[/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 a PNG image as of writing.
var error = http_request.request("https://via.placeholder.com/512")
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 image = Image.new()
var error = image.load_png_from_buffer(body)
if error != OK:
push_error("Couldn't load the image.")
var texture = ImageTexture.new()
texture.create_from_image(image)
# Display the image in a TextureRect node.
var texture_rect = TextureRect.new()
add_child(texture_rect)
texture_rect.texture = texture
[/codeblock]
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</description>
<tutorials >
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<link > https://docs.godotengine.org/en/latest/tutorials/networking/http_request_class.html</link>
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<link > https://docs.godotengine.org/en/latest/tutorials/networking/ssl_certificates.html</link>
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</tutorials>
<methods >
<method name= "cancel_request" >
<return type= "void" >
</return>
<description >
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Cancels the current request.
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</description>
</method>
<method name= "get_body_size" qualifiers= "const" >
<return type= "int" >
</return>
<description >
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Returns the response body length.
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[b]Note:[/b] Some Web servers may not send a body length. In this case, the value returned will be [code]-1[/code]. If using chunked transfer encoding, the body length will also be [code]-1[/code].
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</description>
</method>
<method name= "get_downloaded_bytes" qualifiers= "const" >
<return type= "int" >
</return>
<description >
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Returns the amount of bytes this HTTPRequest downloaded.
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</description>
</method>
<method name= "get_http_client_status" qualifiers= "const" >
<return type= "int" enum= "HTTPClient.Status" >
</return>
<description >
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Returns the current status of the underlying [HTTPClient]. See [enum HTTPClient.Status].
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</description>
</method>
<method name= "request" >
<return type= "int" enum= "Error" >
</return>
<argument index= "0" name= "url" type= "String" >
</argument>
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<argument index= "1" name= "custom_headers" type= "PackedStringArray" default= "PackedStringArray( )" >
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</argument>
<argument index= "2" name= "ssl_validate_domain" type= "bool" default= "true" >
</argument>
<argument index= "3" name= "method" type= "int" enum= "HTTPClient.Method" default= "0" >
</argument>
<argument index= "4" name= "request_data" type= "String" default= """" >
</argument>
<description >
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Creates request on the underlying [HTTPClient]. If there is no configuration errors, it tries to connect using [method HTTPClient.connect_to_host] and passes parameters onto [method HTTPClient.request].
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Returns [constant OK] if request is successfully created. (Does not imply that the server has responded), [constant ERR_UNCONFIGURED] if not in the tree, [constant ERR_BUSY] if still processing previous request, [constant ERR_INVALID_PARAMETER] if given string is not a valid URL format, or [constant ERR_CANT_CONNECT] if not using thread and the [HTTPClient] cannot connect to host.
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</description>
</method>
</methods>
<members >
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<member name= "body_size_limit" type= "int" setter= "set_body_size_limit" getter= "get_body_size_limit" default= "-1" >
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Maximum allowed size for response bodies.
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</member>
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<member name= "download_chunk_size" type= "int" setter= "set_download_chunk_size" getter= "get_download_chunk_size" default= "4096" >
The size of the buffer used and maximum bytes to read per iteration. See [member HTTPClient.read_chunk_size].
Set this to a higher value (e.g. 65536 for 64 KiB) when downloading large files to achieve better speeds at the cost of memory.
</member>
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<member name= "download_file" type= "String" setter= "set_download_file" getter= "get_download_file" default= """" >
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The file to download into. Will output any received file into it.
</member>
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<member name= "max_redirects" type= "int" setter= "set_max_redirects" getter= "get_max_redirects" default= "8" >
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Maximum number of allowed redirects.
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</member>
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<member name= "timeout" type= "int" setter= "set_timeout" getter= "get_timeout" default= "0" >
</member>
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<member name= "use_threads" type= "bool" setter= "set_use_threads" getter= "is_using_threads" default= "false" >
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If [code]true[/code], multithreading is used to improve performance.
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</member>
</members>
<signals >
<signal name= "request_completed" >
<argument index= "0" name= "result" type= "int" >
</argument>
<argument index= "1" name= "response_code" type= "int" >
</argument>
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<argument index= "2" name= "headers" type= "PackedStringArray" >
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</argument>
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<argument index= "3" name= "body" type= "PackedByteArray" >
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</argument>
<description >
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Emitted when a request is completed.
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</description>
</signal>
</signals>
<constants >
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<constant name= "RESULT_SUCCESS" value= "0" enum= "Result" >
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Request successful.
</constant>
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<constant name= "RESULT_CHUNKED_BODY_SIZE_MISMATCH" value= "1" enum= "Result" >
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</constant>
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<constant name= "RESULT_CANT_CONNECT" value= "2" enum= "Result" >
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Request failed while connecting.
</constant>
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<constant name= "RESULT_CANT_RESOLVE" value= "3" enum= "Result" >
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Request failed while resolving.
</constant>
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<constant name= "RESULT_CONNECTION_ERROR" value= "4" enum= "Result" >
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Request failed due to connection (read/write) error.
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</constant>
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<constant name= "RESULT_SSL_HANDSHAKE_ERROR" value= "5" enum= "Result" >
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Request failed on SSL handshake.
</constant>
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<constant name= "RESULT_NO_RESPONSE" value= "6" enum= "Result" >
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Request does not have a response (yet).
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</constant>
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<constant name= "RESULT_BODY_SIZE_LIMIT_EXCEEDED" value= "7" enum= "Result" >
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Request exceeded its maximum size limit, see [member body_size_limit].
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</constant>
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<constant name= "RESULT_REQUEST_FAILED" value= "8" enum= "Result" >
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Request failed (currently unused).
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</constant>
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<constant name= "RESULT_DOWNLOAD_FILE_CANT_OPEN" value= "9" enum= "Result" >
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HTTPRequest couldn't open the download file.
</constant>
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<constant name= "RESULT_DOWNLOAD_FILE_WRITE_ERROR" value= "10" enum= "Result" >
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HTTPRequest couldn't write to the download file.
</constant>
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<constant name= "RESULT_REDIRECT_LIMIT_REACHED" value= "11" enum= "Result" >
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Request reached its maximum redirect limit, see [member max_redirects].
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</constant>
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<constant name= "RESULT_TIMEOUT" value= "12" enum= "Result" >
</constant>
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</constants>
</class>