Request Validation Middleware

as donto believed on

From Dontopedia, the open, paraconsistent wiki. (Last updated 2026-06-08.)

Request Validation Middleware is Validates request Content-Type header and logs validation time.

30 facts·26 predicates·2 sources·3 in dispute

Mostly:rdf:type(2), has parameter(2), contains variable(2)

Inbound mentions (10)

Other subjects in dontopedia point AT this entity as a value. These are inverse relationships — e.g. "X motherOf this subject" — and answer questions the forward facts can't. Grouped by predicate.

`usedIn`Used in(3)

Async Patternex:async-pattern
String Comparisonex:string-comparison
Timing Measurementex:timing-measurement

`appliedTo`Applied to(1)

Http Middleware Decoratorex:http-middleware-decorator

`calledBy`Called by(1)

Time Functionex:time-function

`consistsOf`Consists of(1)

Middleware Chainex:middleware-chain

`evidencedBy`Evidenced by(1)

Security Focusex:security-focus

`firstElement`First Element(1)

Middleware Orderingex:middleware-ordering

`hasMember`Has Member(1)

Middleware Sequenceex:middleware-sequence

`hasMiddleware`Has Middleware(1)

App Objectex:app-object

Other facts (29)

The long tail: predicates that appear too rarely to warrant their own section. Filter or scroll to find a specific one. Each row links to its source.

29 facts

Predicate	Value	Ref
Rdf:type	Middleware Function	[1]
Rdf:type	Http Middleware	[2]
Has Parameter	request	[1]
Has Parameter	call_next	[1]
Contains Variable	start_time	[1]
Contains Variable	content_type	[1]
Decorator	Http Middleware Decorator	[1]
Function Name	validate_request	[1]
Is Async	true	[1]
Purpose	Request Validation	[1]
Checks Content Type	application/json	[1]
Returns Status Code	400	[1]
Returns Detail	Invalid Content-Type	[1]
Calls Call Next	true	[1]
Logs Duration	true	[1]
Executes Before	Auth Middleware	[1]
Applied to	Http Requests	[1]
Has Parameter Type	Request	[1]
Awaits Call Next	true	[1]
Returns Response	true	[1]
Triggers on Invalid Content Type	Status 400	[1]
Follows Pattern	Middleware Structure	[1]
Can Short Circuit	true	[1]
Middleware Number	1	[2]
Measures Execution Time	Request Validation Time	[2]
Validates Content Type	Application Json	[2]
Returns on Invalid Content Type	Http 400 Response	[2]
Logs Execution Duration	Request Validation Duration Log	[2]
Description	Validates request Content-Type header and logs validation time	[2]

Timeline axis is valid_time — when each source says the fact was true in the world, not when Dontopedia learned about it. Retracted rows are kept for provenance; coloured stripes indicate the context kind.

30 undated

—

typebeam/fac20409-1e1c-4898-a9e4-9f9d1fbc406d

ex:MiddlewareFunction

—

decoratorbeam/fac20409-1e1c-4898-a9e4-9f9d1fbc406d

ex:http-middleware-decorator

—

functionNamebeam/fac20409-1e1c-4898-a9e4-9f9d1fbc406d

validate_request

—

hasParameterbeam/fac20409-1e1c-4898-a9e4-9f9d1fbc406d

request

—

hasParameterbeam/fac20409-1e1c-4898-a9e4-9f9d1fbc406d

call_next

—

isAsyncbeam/fac20409-1e1c-4898-a9e4-9f9d1fbc406d

true

—

purposebeam/fac20409-1e1c-4898-a9e4-9f9d1fbc406d

Request Validation

—

containsVariablebeam/fac20409-1e1c-4898-a9e4-9f9d1fbc406d

start_time

—

containsVariablebeam/fac20409-1e1c-4898-a9e4-9f9d1fbc406d

content_type

—

checksContentTypebeam/fac20409-1e1c-4898-a9e4-9f9d1fbc406d

application/json

—

returnsStatusCodebeam/fac20409-1e1c-4898-a9e4-9f9d1fbc406d

400

—

returnsDetailbeam/fac20409-1e1c-4898-a9e4-9f9d1fbc406d

Invalid Content-Type

—

callsCallNextbeam/fac20409-1e1c-4898-a9e4-9f9d1fbc406d

true

—

logsDurationbeam/fac20409-1e1c-4898-a9e4-9f9d1fbc406d

true

—

executesBeforebeam/fac20409-1e1c-4898-a9e4-9f9d1fbc406d

ex:auth-middleware

—

appliedTobeam/fac20409-1e1c-4898-a9e4-9f9d1fbc406d

ex:http-requests

—

hasParameterTypebeam/fac20409-1e1c-4898-a9e4-9f9d1fbc406d

Request

—

awaitsCallNextbeam/fac20409-1e1c-4898-a9e4-9f9d1fbc406d

true

—

returnsResponsebeam/fac20409-1e1c-4898-a9e4-9f9d1fbc406d

true

—

triggersOnInvalidContentTypebeam/fac20409-1e1c-4898-a9e4-9f9d1fbc406d

ex:status-400

—

followsPatternbeam/fac20409-1e1c-4898-a9e4-9f9d1fbc406d

ex:middleware-structure

—

canShortCircuitbeam/fac20409-1e1c-4898-a9e4-9f9d1fbc406d

true

—

typebeam/648ec3f3-22a4-4a2b-9d58-9715edb7400c

ex:HttpMiddleware

—

labelbeam/648ec3f3-22a4-4a2b-9d58-9715edb7400c

Request Validation Middleware

—

middlewareNumberbeam/648ec3f3-22a4-4a2b-9d58-9715edb7400c

—

measuresExecutionTimebeam/648ec3f3-22a4-4a2b-9d58-9715edb7400c

ex:request-validation-time

—

validatesContentTypebeam/648ec3f3-22a4-4a2b-9d58-9715edb7400c

ex:application-json

—

returnsOnInvalidContentTypebeam/648ec3f3-22a4-4a2b-9d58-9715edb7400c

ex:http-400-response

—

logsExecutionDurationbeam/648ec3f3-22a4-4a2b-9d58-9715edb7400c

ex:request-validation-duration-log

—

descriptionbeam/648ec3f3-22a4-4a2b-9d58-9715edb7400c

Validates request Content-Type header and logs validation time

References (2)

2 references

[1]Fac20409 1e1c 4898 A9e4 9f9d1fbc406d22 facts
ctx:claims/beam/fac20409-1e1c-4898-a9e4-9f9d1fbc406d
- full textbeam-chunk
  text/plain1 KBdoc:beam/fac20409-1e1c-4898-a9e4-9f9d1fbc406d
  Show excerpt
  from fastapi.responses import JSONResponse import logging import time app = FastAPI() # Middleware 1: Request Validation @app.middleware("http") async def validate_request(request: Request, call_next): start_time = time.time() con…
[2]648ec3f3 22a4 4a2b 9d58 9715edb7400c8 facts
ctx:claims/beam/648ec3f3-22a4-4a2b-9d58-9715edb7400c

Keep researching

Missing something or suspicious of what's here? Kick off a research session — a Claude agent will investigate, cite its sources, and file new facts into a dedicated context you can review before accepting into the shared view.

Request Validation Middleware

Inbound mentions (10)

usedInUsed in(3)

appliedToApplied to(1)

calledByCalled by(1)

consistsOfConsists of(1)

evidencedByEvidenced by(1)

firstElementFirst Element(1)

hasMemberHas Member(1)

hasMiddlewareHas Middleware(1)

Other facts (29)

Timeline

References (2)

See also

Keep researching

`usedIn`Used in(3)

`appliedTo`Applied to(1)

`calledBy`Called by(1)

`consistsOf`Consists of(1)

`evidencedBy`Evidenced by(1)

`firstElement`First Element(1)

`hasMember`Has Member(1)

`hasMiddleware`Has Middleware(1)