How do I return two http requests sequentially in rxjs and use data from first in second call?

I've written a http function that works using switch map to get the value from one http request and use it as a parameter in the second, but how do I return not only the final http request but also the data from the first?

Here is my function:

.post<RxObservable<unknown>>(
`${this.nextApiEndpoint}ProgramReview/GetAssessmentQuestionNumber`,
body,
{}
)
.pipe(
switchMap((data) => {
return this.http.post<any>(
`${this.nextApiEndpoint}ProgramReview/GetProgramReviewQuestion`,
{ studentId: args.studentId, questionId: data, programReviewId: args.programReviewId },
{}
);
}),
catchError((err) => {
return err;
})
);
}


I subscribe to is in the component and get the return data from the final http request, but I also want to pass the data from the first request to the subscribe in the component.

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