@@ -25,7 +25,7 @@ def auth_flow(self, request: Request) -> typing.Generator[Request, Response, Non
         url, headers, body = self.prepare(
             request.method, str(request.url), request.headers, request.content
         )
-        headers["Content-Length"] = str(len(body))
+        headers["Content-Length"] = str(len(request.content))
         yield build_request(
             url=url, headers=headers, body=body, initial_request=request
         )
 
@@ -34,7 +34,7 @@ def extract_client_kwargs(kwargs):
 def build_request(url, headers, body, initial_request: Request) -> Request:
     """Make sure that all the data from initial request is passed to the updated object."""
     updated_request = Request(
-        method=initial_request.method, url=url, headers=headers, content=body
+        method=initial_request.method, url=url, headers=headers, content=body, stream=initial_request.stream
     )
 
     if hasattr(initial_request, "extensions"):
Original file line number	Diff line number	Diff line change
`@@ -25,7 +25,7 @@ def auth_flow(self, request: Request) -> typing.Generator[Request, Response, Non`
`25`	`25`	`url, headers, body = self.prepare(`
`26`	`26`	`request.method, str(request.url), request.headers, request.content`
`27`	`27`	`)`
`28`		`- headers["Content-Length"] = str(len(body))`
	`28`	`+ headers["Content-Length"] = str(len(request.content))`
`29`	`29`	`yield build_request(`
`30`	`30`	`url=url, headers=headers, body=body, initial_request=request`
`31`	`31`	`)`
Original file line number	Diff line number	Diff line change
`@@ -34,7 +34,7 @@ def extract_client_kwargs(kwargs):`
`34`	`34`	`def build_request(url, headers, body, initial_request: Request) -> Request:`
`35`	`35`	`"""Make sure that all the data from initial request is passed to the updated object."""`
`36`	`36`	`updated_request = Request(`
`37`		`- method=initial_request.method, url=url, headers=headers, content=body`
	`37`	`+ method=initial_request.method, url=url, headers=headers, content=body, stream=initial_request.stream`
`38`	`38`	`)`
`39`	`39`
`40`	`40`	`if hasattr(initial_request, "extensions"):`