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# HTTP Status Codes
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Comprehensive HTTP status code constants for building robust web applications with proper response status handling.
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## Capabilities
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### Status Code Constants
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HTTP status code constants following the IANA HTTP Status Code Registry, including informational, success, redirection, client error, and server error codes.
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```python { .api }
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# Informational responses (1xx)
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HTTP_100_CONTINUE = 100
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HTTP_101_SWITCHING_PROTOCOLS = 101
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HTTP_102_PROCESSING = 102
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HTTP_103_EARLY_HINTS = 103
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# Successful responses (2xx)
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HTTP_200_OK = 200
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HTTP_201_CREATED = 201
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HTTP_202_ACCEPTED = 202
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HTTP_203_NON_AUTHORITATIVE_INFORMATION = 203
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HTTP_204_NO_CONTENT = 204
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HTTP_205_RESET_CONTENT = 205
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HTTP_206_PARTIAL_CONTENT = 206
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HTTP_207_MULTI_STATUS = 207
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HTTP_208_ALREADY_REPORTED = 208
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HTTP_226_IM_USED = 226
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# Redirection messages (3xx)
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HTTP_300_MULTIPLE_CHOICES = 300
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HTTP_301_MOVED_PERMANENTLY = 301
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HTTP_302_FOUND = 302
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HTTP_303_SEE_OTHER = 303
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HTTP_304_NOT_MODIFIED = 304
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HTTP_305_USE_PROXY = 305
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HTTP_306_RESERVED = 306
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HTTP_307_TEMPORARY_REDIRECT = 307
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HTTP_308_PERMANENT_REDIRECT = 308
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# Client error responses (4xx)
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HTTP_400_BAD_REQUEST = 400
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HTTP_401_UNAUTHORIZED = 401
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HTTP_402_PAYMENT_REQUIRED = 402
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HTTP_403_FORBIDDEN = 403
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HTTP_404_NOT_FOUND = 404
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HTTP_405_METHOD_NOT_ALLOWED = 405
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HTTP_406_NOT_ACCEPTABLE = 406
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HTTP_407_PROXY_AUTHENTICATION_REQUIRED = 407
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HTTP_408_REQUEST_TIMEOUT = 408
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HTTP_409_CONFLICT = 409
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HTTP_410_GONE = 410
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HTTP_411_LENGTH_REQUIRED = 411
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HTTP_412_PRECONDITION_FAILED = 412
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HTTP_413_REQUEST_ENTITY_TOO_LARGE = 413
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HTTP_414_REQUEST_URI_TOO_LONG = 414
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HTTP_415_UNSUPPORTED_MEDIA_TYPE = 415
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HTTP_416_REQUESTED_RANGE_NOT_SATISFIABLE = 416
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HTTP_417_EXPECTATION_FAILED = 417
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HTTP_418_IM_A_TEAPOT = 418
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HTTP_421_MISDIRECTED_REQUEST = 421
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HTTP_422_UNPROCESSABLE_ENTITY = 422
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HTTP_423_LOCKED = 423
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HTTP_424_FAILED_DEPENDENCY = 424
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HTTP_425_TOO_EARLY = 425
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HTTP_426_UPGRADE_REQUIRED = 426
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HTTP_428_PRECONDITION_REQUIRED = 428
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HTTP_429_TOO_MANY_REQUESTS = 429
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HTTP_431_REQUEST_HEADER_FIELDS_TOO_LARGE = 431
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HTTP_451_UNAVAILABLE_FOR_LEGAL_REASONS = 451
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# Server error responses (5xx)
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HTTP_500_INTERNAL_SERVER_ERROR = 500
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HTTP_501_NOT_IMPLEMENTED = 501
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HTTP_502_BAD_GATEWAY = 502
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HTTP_503_SERVICE_UNAVAILABLE = 503
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HTTP_504_GATEWAY_TIMEOUT = 504
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HTTP_505_HTTP_VERSION_NOT_SUPPORTED = 505
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HTTP_506_VARIANT_ALSO_NEGOTIATES = 506
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HTTP_507_INSUFFICIENT_STORAGE = 507
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HTTP_508_LOOP_DETECTED = 508
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HTTP_510_NOT_EXTENDED = 510
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HTTP_511_NETWORK_AUTHENTICATION_REQUIRED = 511
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```
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### Usage Examples
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```python
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from robyn import Robyn, status_codes, Response
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app = Robyn(__file__)
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@app.get("/")
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def index(request):
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    return Response(
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        status_code=status_codes.HTTP_200_OK,
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        description="Hello, World!",
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        headers={}
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    )
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@app.get("/created")
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def created_resource(request):
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    return Response(
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        status_code=status_codes.HTTP_201_CREATED,
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        description="Resource created successfully",
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        headers={}
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    )
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@app.get("/not-found")
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def not_found(request):
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    return Response(
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        status_code=status_codes.HTTP_404_NOT_FOUND,
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        description="Resource not found",
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        headers={}
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    )
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@app.get("/server-error")
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def server_error(request):
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    return Response(
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        status_code=status_codes.HTTP_500_INTERNAL_SERVER_ERROR,
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        description="Internal server error",
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        headers={}
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    )
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```