iterate_with_link_url trown out by extra comma on link list

[dvictori]

I'm trying to use httr2 with paginated results with this endpoint from the Brazilian House of representatives API

https://dadosabertos.camara.leg.br/api/v2/legislaturas

Reading the httr2 man page I figured I should use req_perform_iterative like so:

base_url <- "https://dadosabertos.camara.leg.br/"
path <- 'api/v2'
endpoint <- "/legislaturas"

req <- request(base_url) |>
    req_url_path(path) |>
    req_url_path_append(endpoint) |>
    req_headers(accept = "application/json")

resp <- req |>
    req_perform_iterative(
        next_req = iterate_with_link_url())

But this gives me an error

Error in pieces[[1]] : subscript out of bounds

After much investigating, it looks like this happens because the links in the Header has an extra comma at the end

resp2 <- req |>
    req_perform()
resp2$headers$link

[1] "<https://dadosabertos.camara.leg.br/api/v2/legislaturas>; rel=\"self\",<https://dadosabertos.camara.leg.br/api/v2/legislaturas?pagina=2&itens=15>; rel=\"next\",<https://dadosabertos.camara.leg.br/api/v2/legislaturas?pagina=1&itens=15>; rel=\"first\",<https://dadosabertos.camara.leg.br/api/v2/legislaturas?pagina=4&itens=15>; rel=\"last\","

Not sure if this is a common problem or if I'm making some mistake. I'm guessing I'll need to make a custom next_req function?