Aliases: parse_headers parse_headers_list
Keywords:
### ** Examples req <- curl_fetch_memory("https://hb.cran.dev/redirect/3") parse_headers(req$headers)
[1] "HTTP/2 200 "
[2] "date: Mon, 11 Aug 2025 15:54:00 GMT"
[3] "content-type: application/json"
[4] "server: cloudflare"
[5] "nel: {\"report_to\":\"cf-nel\",\"success_fraction\":0.0,\"max_age\":604800}"
[6] "access-control-allow-origin: *"
[7] "access-control-allow-credentials: true"
[8] "x-powered-by: Flask"
[9] "x-processed-time: 0"
[10] "cf-cache-status: DYNAMIC"
[11] "report-to: {\"group\":\"cf-nel\",\"max_age\":604800,\"endpoints\":[{\"url\":\"https://a.nel.cloudflare.com/report/v4?s=u48wBK55dPKvDKEy8FFkCbT5wWygCbkZg9%2FVASWhSQhZ%2BbwtQ1FcDpuasGWh8h%2BVKF%2F7hGt2SIphearFWjT120SVcYEk%2BcA%3D\"}]}"
[12] "content-encoding: zstd"
[13] "cf-ray: 96d8e8b9f95b5089-AKL"
[14] "alt-svc: h3=\":443\"; ma=86400"
parse_headers(req$headers, multiple = TRUE)
[[1]]
[1] "HTTP/2 302 "
[2] "date: Mon, 11 Aug 2025 15:54:00 GMT"
[3] "content-type: text/html; charset=utf-8"
[4] "server: cloudflare"
[5] "nel: {\"report_to\":\"cf-nel\",\"success_fraction\":0.0,\"max_age\":604800}"
[6] "location: /relative-redirect/2"
[7] "access-control-allow-origin: *"
[8] "access-control-allow-credentials: true"
[9] "x-powered-by: Flask"
[10] "x-processed-time: 0"
[11] "cf-cache-status: DYNAMIC"
[12] "report-to: {\"group\":\"cf-nel\",\"max_age\":604800,\"endpoints\":[{\"url\":\"https://a.nel.cloudflare.com/report/v4?s=LIx7qlHG8wT3hLKL37uqNbAVt2cgJlhAZC3bypW5ye2Bc40G5XOpWQ%2BQznZNgh72K2SsTLdO%2FCu%2FQ2mE%2B12fLlUTXsC2kW0%3D\"}]}"
[13] "cf-ray: 96d8e8b3cbf55089-AKL"
[14] "alt-svc: h3=\":443\"; ma=86400"
[[2]]
[1] "HTTP/2 302 "
[2] "date: Mon, 11 Aug 2025 15:54:00 GMT"
[3] "content-type: text/html; charset=utf-8"
[4] "server: cloudflare"
[5] "nel: {\"report_to\":\"cf-nel\",\"success_fraction\":0.0,\"max_age\":604800}"
[6] "location: /relative-redirect/1"
[7] "access-control-allow-origin: *"
[8] "access-control-allow-credentials: true"
[9] "x-powered-by: Flask"
[10] "x-processed-time: 0"
[11] "cf-cache-status: DYNAMIC"
[12] "report-to: {\"group\":\"cf-nel\",\"max_age\":604800,\"endpoints\":[{\"url\":\"https://a.nel.cloudflare.com/report/v4?s=6fAyYsiH0uyYOq9c0Ne4yGEqqB1SAxfKHNe3%2FP0%2BNG8rbThKWi6jw4aapPw5OSyub3fIqNwHnio9bbe1rXsddAYrQRvePB0%3D\"}]}"
[13] "cf-ray: 96d8e8b61df05089-AKL"
[14] "alt-svc: h3=\":443\"; ma=86400"
[[3]]
[1] "HTTP/2 302 "
[2] "date: Mon, 11 Aug 2025 15:54:00 GMT"
[3] "content-type: text/html; charset=utf-8"
[4] "server: cloudflare"
[5] "nel: {\"report_to\":\"cf-nel\",\"success_fraction\":0.0,\"max_age\":604800}"
[6] "location: /get"
[7] "access-control-allow-origin: *"
[8] "access-control-allow-credentials: true"
[9] "x-powered-by: Flask"
[10] "x-processed-time: 0"
[11] "cf-cache-status: DYNAMIC"
[12] "report-to: {\"group\":\"cf-nel\",\"max_age\":604800,\"endpoints\":[{\"url\":\"https://a.nel.cloudflare.com/report/v4?s=W9VK0j0w%2FdJBvMIaP80%2FQaCCsL3GUbvHmSqj5S5oOIblxpi%2BLfu7flzfnpumjXdIPKoLjRHw51FqCn57Jtdd%2FoT31RgyDp4%3D\"}]}"
[13] "cf-ray: 96d8e8b80fa55089-AKL"
[14] "alt-svc: h3=\":443\"; ma=86400"
[[4]]
[1] "HTTP/2 200 "
[2] "date: Mon, 11 Aug 2025 15:54:00 GMT"
[3] "content-type: application/json"
[4] "server: cloudflare"
[5] "nel: {\"report_to\":\"cf-nel\",\"success_fraction\":0.0,\"max_age\":604800}"
[6] "access-control-allow-origin: *"
[7] "access-control-allow-credentials: true"
[8] "x-powered-by: Flask"
[9] "x-processed-time: 0"
[10] "cf-cache-status: DYNAMIC"
[11] "report-to: {\"group\":\"cf-nel\",\"max_age\":604800,\"endpoints\":[{\"url\":\"https://a.nel.cloudflare.com/report/v4?s=u48wBK55dPKvDKEy8FFkCbT5wWygCbkZg9%2FVASWhSQhZ%2BbwtQ1FcDpuasGWh8h%2BVKF%2F7hGt2SIphearFWjT120SVcYEk%2BcA%3D\"}]}"
[12] "content-encoding: zstd"
[13] "cf-ray: 96d8e8b9f95b5089-AKL"
[14] "alt-svc: h3=\":443\"; ma=86400"
# Parse into named list parse_headers_list(req$headers)
$date
[1] "Mon, 11 Aug 2025 15:54:00 GMT"
$`content-type`
[1] "application/json"
$server
[1] "cloudflare"
$nel
[1] "{\"report_to\":\"cf-nel\",\"success_fraction\":0.0,\"max_age\":604800}"
$`access-control-allow-origin`
[1] "*"
$`access-control-allow-credentials`
[1] "true"
$`x-powered-by`
[1] "Flask"
$`x-processed-time`
[1] "0"
$`cf-cache-status`
[1] "DYNAMIC"
$`report-to`
[1] "{\"group\":\"cf-nel\",\"max_age\":604800,\"endpoints\":[{\"url\":\"https://a.nel.cloudflare.com/report/v4?s=u48wBK55dPKvDKEy8FFkCbT5wWygCbkZg9%2FVASWhSQhZ%2BbwtQ1FcDpuasGWh8h%2BVKF%2F7hGt2SIphearFWjT120SVcYEk%2BcA%3D\"}]}"
$`content-encoding`
[1] "zstd"
$`cf-ray`
[1] "96d8e8b9f95b5089-AKL"
$`alt-svc`
[1] "h3=\":443\"; ma=86400"