This function lists all available options for config().
It provides both the short R name which you use with httr, and the longer
Curl name, which is useful when searching the documentation. curl_doc
opens a link to the libcurl documentation for an option in your browser.
httr_options(matches)
curl_docs(x)A data frame with three columns:
The short name used in httr
The full name used by libcurl
The type of R object that the option accepts
RCurl and httr use slightly different names to libcurl: the initial
CURLOPT_ is removed, all underscores are converted to periods and
the option is given in lower case. Thus "CURLOPT_SSLENGINE_DEFAULT"
becomes "sslengine.default".
httr_options()
#> httr libcurl type
#> 1 abstract_unix_socket CURLOPT_ABSTRACT_UNIX_SOCKET string
#> 2 accept_encoding CURLOPT_ACCEPT_ENCODING string
#> 3 accepttimeout_ms CURLOPT_ACCEPTTIMEOUT_MS integer
#> 4 address_scope CURLOPT_ADDRESS_SCOPE integer
#> 5 altsvc CURLOPT_ALTSVC string
#> 6 altsvc_ctrl CURLOPT_ALTSVC_CTRL integer
#> 7 append CURLOPT_APPEND integer
#> 8 autoreferer CURLOPT_AUTOREFERER integer
#> 9 aws_sigv4 CURLOPT_AWS_SIGV4 string
#> 10 buffersize CURLOPT_BUFFERSIZE integer
#> 11 ca_cache_timeout CURLOPT_CA_CACHE_TIMEOUT integer
#> 12 cainfo CURLOPT_CAINFO string
#> 13 cainfo_blob CURLOPT_CAINFO_BLOB <NA>
#> 14 capath CURLOPT_CAPATH string
#> 15 certinfo CURLOPT_CERTINFO integer
#> 16 chunk_bgn_function CURLOPT_CHUNK_BGN_FUNCTION function
#> 17 chunk_data CURLOPT_CHUNK_DATA string
#> 18 chunk_end_function CURLOPT_CHUNK_END_FUNCTION function
#> 19 closesocketdata CURLOPT_CLOSESOCKETDATA string
#> 20 closesocketfunction CURLOPT_CLOSESOCKETFUNCTION function
#> 21 connect_only CURLOPT_CONNECT_ONLY integer
#> 22 connect_to CURLOPT_CONNECT_TO string
#> 23 connecttimeout CURLOPT_CONNECTTIMEOUT integer
#> 24 connecttimeout_ms CURLOPT_CONNECTTIMEOUT_MS integer
#> 25 conv_from_network_function CURLOPT_CONV_FROM_NETWORK_FUNCTION function
#> 26 conv_from_utf8_function CURLOPT_CONV_FROM_UTF8_FUNCTION function
#> 27 conv_to_network_function CURLOPT_CONV_TO_NETWORK_FUNCTION function
#> 28 cookie CURLOPT_COOKIE string
#> 29 cookiefile CURLOPT_COOKIEFILE string
#> 30 cookiejar CURLOPT_COOKIEJAR string
#> 31 cookielist CURLOPT_COOKIELIST string
#> 32 cookiesession CURLOPT_COOKIESESSION integer
#> 33 copypostfields CURLOPT_COPYPOSTFIELDS string
#> 34 crlf CURLOPT_CRLF integer
#> 35 crlfile CURLOPT_CRLFILE string
#> 36 curlu CURLOPT_CURLU string
#> 37 customrequest CURLOPT_CUSTOMREQUEST string
#> 38 debugdata CURLOPT_DEBUGDATA string
#> 39 debugfunction CURLOPT_DEBUGFUNCTION function
#> 40 default_protocol CURLOPT_DEFAULT_PROTOCOL string
#> 41 dirlistonly CURLOPT_DIRLISTONLY integer
#> 42 disallow_username_in_url CURLOPT_DISALLOW_USERNAME_IN_URL integer
#> 43 dns_cache_timeout CURLOPT_DNS_CACHE_TIMEOUT integer
#> 44 dns_interface CURLOPT_DNS_INTERFACE string
#> 45 dns_local_ip4 CURLOPT_DNS_LOCAL_IP4 string
#> 46 dns_local_ip6 CURLOPT_DNS_LOCAL_IP6 string
#> 47 dns_servers CURLOPT_DNS_SERVERS string
#> 48 dns_shuffle_addresses CURLOPT_DNS_SHUFFLE_ADDRESSES integer
#> 49 dns_use_global_cache CURLOPT_DNS_USE_GLOBAL_CACHE integer
#> 50 doh_ssl_verifyhost CURLOPT_DOH_SSL_VERIFYHOST integer
#> 51 doh_ssl_verifypeer CURLOPT_DOH_SSL_VERIFYPEER integer
#> 52 doh_ssl_verifystatus CURLOPT_DOH_SSL_VERIFYSTATUS integer
#> 53 doh_url CURLOPT_DOH_URL string
#> 54 egdsocket CURLOPT_EGDSOCKET string
#> 55 errorbuffer CURLOPT_ERRORBUFFER string
#> 56 expect_100_timeout_ms CURLOPT_EXPECT_100_TIMEOUT_MS integer
#> 57 failonerror CURLOPT_FAILONERROR integer
#> 58 filetime CURLOPT_FILETIME integer
#> 59 fnmatch_data CURLOPT_FNMATCH_DATA string
#> 60 fnmatch_function CURLOPT_FNMATCH_FUNCTION function
#> 61 followlocation CURLOPT_FOLLOWLOCATION integer
#> 62 forbid_reuse CURLOPT_FORBID_REUSE integer
#> 63 fresh_connect CURLOPT_FRESH_CONNECT integer
#> 64 ftp_account CURLOPT_FTP_ACCOUNT string
#> 65 ftp_alternative_to_user CURLOPT_FTP_ALTERNATIVE_TO_USER string
#> 66 ftp_create_missing_dirs CURLOPT_FTP_CREATE_MISSING_DIRS integer
#> 67 ftp_filemethod CURLOPT_FTP_FILEMETHOD integer
#> 68 ftp_skip_pasv_ip CURLOPT_FTP_SKIP_PASV_IP integer
#> 69 ftp_ssl_ccc CURLOPT_FTP_SSL_CCC integer
#> 70 ftp_use_eprt CURLOPT_FTP_USE_EPRT integer
#> 71 ftp_use_epsv CURLOPT_FTP_USE_EPSV integer
#> 72 ftp_use_pret CURLOPT_FTP_USE_PRET integer
#> 73 ftpport CURLOPT_FTPPORT string
#> 74 ftpsslauth CURLOPT_FTPSSLAUTH integer
#> 75 gssapi_delegation CURLOPT_GSSAPI_DELEGATION integer
#> 76 happy_eyeballs_timeout_ms CURLOPT_HAPPY_EYEBALLS_TIMEOUT_MS integer
#> 77 haproxy_client_ip CURLOPT_HAPROXY_CLIENT_IP string
#> 78 haproxyprotocol CURLOPT_HAPROXYPROTOCOL integer
#> 79 header CURLOPT_HEADER integer
#> 80 headerdata CURLOPT_HEADERDATA string
#> 81 headerfunction CURLOPT_HEADERFUNCTION function
#> 82 headeropt CURLOPT_HEADEROPT integer
#> 83 hsts CURLOPT_HSTS string
#> 84 hsts_ctrl CURLOPT_HSTS_CTRL integer
#> 85 hstsreaddata CURLOPT_HSTSREADDATA string
#> 86 hstsreadfunction CURLOPT_HSTSREADFUNCTION function
#> 87 hstswritedata CURLOPT_HSTSWRITEDATA string
#> 88 hstswritefunction CURLOPT_HSTSWRITEFUNCTION function
#> 89 http09_allowed CURLOPT_HTTP09_ALLOWED integer
#> 90 http200aliases CURLOPT_HTTP200ALIASES string
#> 91 http_content_decoding CURLOPT_HTTP_CONTENT_DECODING integer
#> 92 http_transfer_decoding CURLOPT_HTTP_TRANSFER_DECODING integer
#> 93 http_version CURLOPT_HTTP_VERSION integer
#> 94 httpauth CURLOPT_HTTPAUTH integer
#> 95 httpget CURLOPT_HTTPGET integer
#> 96 httpheader CURLOPT_HTTPHEADER string
#> 97 httppost CURLOPT_HTTPPOST string
#> 98 httpproxytunnel CURLOPT_HTTPPROXYTUNNEL integer
#> 99 ignore_content_length CURLOPT_IGNORE_CONTENT_LENGTH integer
#> 100 infilesize CURLOPT_INFILESIZE integer
#> 101 infilesize_large CURLOPT_INFILESIZE_LARGE number
#> 102 interface CURLOPT_INTERFACE string
#> 103 interleavedata CURLOPT_INTERLEAVEDATA string
#> 104 interleavefunction CURLOPT_INTERLEAVEFUNCTION function
#> 105 ioctldata CURLOPT_IOCTLDATA string
#> 106 ioctlfunction CURLOPT_IOCTLFUNCTION function
#> 107 ipresolve CURLOPT_IPRESOLVE integer
#> 108 issuercert CURLOPT_ISSUERCERT string
#> 109 issuercert_blob CURLOPT_ISSUERCERT_BLOB <NA>
#> 110 keep_sending_on_error CURLOPT_KEEP_SENDING_ON_ERROR integer
#> 111 keypasswd CURLOPT_KEYPASSWD string
#> 112 krblevel CURLOPT_KRBLEVEL string
#> 113 localport CURLOPT_LOCALPORT integer
#> 114 localportrange CURLOPT_LOCALPORTRANGE integer
#> 115 login_options CURLOPT_LOGIN_OPTIONS string
#> 116 low_speed_limit CURLOPT_LOW_SPEED_LIMIT integer
#> 117 low_speed_time CURLOPT_LOW_SPEED_TIME integer
#> 118 mail_auth CURLOPT_MAIL_AUTH string
#> 119 mail_from CURLOPT_MAIL_FROM string
#> 120 mail_rcpt CURLOPT_MAIL_RCPT string
#> 121 mail_rcpt_allowfails CURLOPT_MAIL_RCPT_ALLOWFAILS integer
#> 122 max_recv_speed_large CURLOPT_MAX_RECV_SPEED_LARGE number
#> 123 max_send_speed_large CURLOPT_MAX_SEND_SPEED_LARGE number
#> 124 maxage_conn CURLOPT_MAXAGE_CONN integer
#> 125 maxconnects CURLOPT_MAXCONNECTS integer
#> 126 maxfilesize CURLOPT_MAXFILESIZE integer
#> 127 maxfilesize_large CURLOPT_MAXFILESIZE_LARGE number
#> 128 maxlifetime_conn CURLOPT_MAXLIFETIME_CONN integer
#> 129 maxredirs CURLOPT_MAXREDIRS integer
#> 130 mime_options CURLOPT_MIME_OPTIONS integer
#> 131 mimepost CURLOPT_MIMEPOST string
#> 132 netrc CURLOPT_NETRC integer
#> 133 netrc_file CURLOPT_NETRC_FILE string
#> 134 new_directory_perms CURLOPT_NEW_DIRECTORY_PERMS integer
#> 135 new_file_perms CURLOPT_NEW_FILE_PERMS integer
#> 136 nobody CURLOPT_NOBODY integer
#> 137 noprogress CURLOPT_NOPROGRESS integer
#> 138 noproxy CURLOPT_NOPROXY string
#> 139 nosignal CURLOPT_NOSIGNAL integer
#> 140 opensocketdata CURLOPT_OPENSOCKETDATA string
#> 141 opensocketfunction CURLOPT_OPENSOCKETFUNCTION function
#> 142 password CURLOPT_PASSWORD string
#> 143 path_as_is CURLOPT_PATH_AS_IS integer
#> 144 pinnedpublickey CURLOPT_PINNEDPUBLICKEY string
#> 145 pipewait CURLOPT_PIPEWAIT integer
#> 146 port CURLOPT_PORT integer
#> 147 post CURLOPT_POST integer
#> 148 postfields CURLOPT_POSTFIELDS string
#> 149 postfieldsize CURLOPT_POSTFIELDSIZE integer
#> 150 postfieldsize_large CURLOPT_POSTFIELDSIZE_LARGE number
#> 151 postquote CURLOPT_POSTQUOTE string
#> 152 postredir CURLOPT_POSTREDIR integer
#> 153 pre_proxy CURLOPT_PRE_PROXY string
#> 154 prequote CURLOPT_PREQUOTE string
#> 155 prereqdata CURLOPT_PREREQDATA string
#> 156 prereqfunction CURLOPT_PREREQFUNCTION function
#> 157 private CURLOPT_PRIVATE string
#> 158 progressfunction CURLOPT_PROGRESSFUNCTION function
#> 159 protocols CURLOPT_PROTOCOLS integer
#> 160 protocols_str CURLOPT_PROTOCOLS_STR string
#> 161 proxy CURLOPT_PROXY string
#> 162 proxy_cainfo CURLOPT_PROXY_CAINFO string
#> 163 proxy_cainfo_blob CURLOPT_PROXY_CAINFO_BLOB <NA>
#> 164 proxy_capath CURLOPT_PROXY_CAPATH string
#> 165 proxy_crlfile CURLOPT_PROXY_CRLFILE string
#> 166 proxy_issuercert CURLOPT_PROXY_ISSUERCERT string
#> 167 proxy_issuercert_blob CURLOPT_PROXY_ISSUERCERT_BLOB <NA>
#> 168 proxy_keypasswd CURLOPT_PROXY_KEYPASSWD string
#> 169 proxy_pinnedpublickey CURLOPT_PROXY_PINNEDPUBLICKEY string
#> 170 proxy_service_name CURLOPT_PROXY_SERVICE_NAME string
#> 171 proxy_ssl_cipher_list CURLOPT_PROXY_SSL_CIPHER_LIST string
#> 172 proxy_ssl_options CURLOPT_PROXY_SSL_OPTIONS integer
#> 173 proxy_ssl_verifyhost CURLOPT_PROXY_SSL_VERIFYHOST integer
#> 174 proxy_ssl_verifypeer CURLOPT_PROXY_SSL_VERIFYPEER integer
#> 175 proxy_sslcert CURLOPT_PROXY_SSLCERT string
#> 176 proxy_sslcert_blob CURLOPT_PROXY_SSLCERT_BLOB <NA>
#> 177 proxy_sslcerttype CURLOPT_PROXY_SSLCERTTYPE string
#> 178 proxy_sslkey CURLOPT_PROXY_SSLKEY string
#> 179 proxy_sslkey_blob CURLOPT_PROXY_SSLKEY_BLOB <NA>
#> 180 proxy_sslkeytype CURLOPT_PROXY_SSLKEYTYPE string
#> 181 proxy_sslversion CURLOPT_PROXY_SSLVERSION integer
#> 182 proxy_tls13_ciphers CURLOPT_PROXY_TLS13_CIPHERS string
#> 183 proxy_tlsauth_password CURLOPT_PROXY_TLSAUTH_PASSWORD string
#> 184 proxy_tlsauth_type CURLOPT_PROXY_TLSAUTH_TYPE string
#> 185 proxy_tlsauth_username CURLOPT_PROXY_TLSAUTH_USERNAME string
#> 186 proxy_transfer_mode CURLOPT_PROXY_TRANSFER_MODE integer
#> 187 proxyauth CURLOPT_PROXYAUTH integer
#> 188 proxyheader CURLOPT_PROXYHEADER string
#> 189 proxypassword CURLOPT_PROXYPASSWORD string
#> 190 proxyport CURLOPT_PROXYPORT integer
#> 191 proxytype CURLOPT_PROXYTYPE integer
#> 192 proxyusername CURLOPT_PROXYUSERNAME string
#> 193 proxyuserpwd CURLOPT_PROXYUSERPWD string
#> 194 put CURLOPT_PUT integer
#> 195 quick_exit CURLOPT_QUICK_EXIT integer
#> 196 quote CURLOPT_QUOTE string
#> 197 random_file CURLOPT_RANDOM_FILE string
#> 198 range CURLOPT_RANGE string
#> 199 readdata CURLOPT_READDATA string
#> 200 readfunction CURLOPT_READFUNCTION function
#> 201 redir_protocols CURLOPT_REDIR_PROTOCOLS integer
#> 202 redir_protocols_str CURLOPT_REDIR_PROTOCOLS_STR string
#> 203 referer CURLOPT_REFERER string
#> 204 request_target CURLOPT_REQUEST_TARGET string
#> 205 resolve CURLOPT_RESOLVE string
#> 206 resolver_start_data CURLOPT_RESOLVER_START_DATA string
#> 207 resolver_start_function CURLOPT_RESOLVER_START_FUNCTION function
#> 208 resume_from CURLOPT_RESUME_FROM integer
#> 209 resume_from_large CURLOPT_RESUME_FROM_LARGE number
#> 210 rtsp_client_cseq CURLOPT_RTSP_CLIENT_CSEQ integer
#> 211 rtsp_request CURLOPT_RTSP_REQUEST integer
#> 212 rtsp_server_cseq CURLOPT_RTSP_SERVER_CSEQ integer
#> 213 rtsp_session_id CURLOPT_RTSP_SESSION_ID string
#> 214 rtsp_stream_uri CURLOPT_RTSP_STREAM_URI string
#> 215 rtsp_transport CURLOPT_RTSP_TRANSPORT string
#> 216 sasl_authzid CURLOPT_SASL_AUTHZID string
#> 217 sasl_ir CURLOPT_SASL_IR integer
#> 218 seekdata CURLOPT_SEEKDATA string
#> 219 seekfunction CURLOPT_SEEKFUNCTION function
#> 220 server_response_timeout CURLOPT_SERVER_RESPONSE_TIMEOUT integer
#> 221 service_name CURLOPT_SERVICE_NAME string
#> 222 share CURLOPT_SHARE string
#> 223 sockoptdata CURLOPT_SOCKOPTDATA string
#> 224 sockoptfunction CURLOPT_SOCKOPTFUNCTION function
#> 225 socks5_auth CURLOPT_SOCKS5_AUTH integer
#> 226 socks5_gssapi_nec CURLOPT_SOCKS5_GSSAPI_NEC integer
#> 227 socks5_gssapi_service CURLOPT_SOCKS5_GSSAPI_SERVICE string
#> 228 ssh_auth_types CURLOPT_SSH_AUTH_TYPES integer
#> 229 ssh_compression CURLOPT_SSH_COMPRESSION integer
#> 230 ssh_host_public_key_md5 CURLOPT_SSH_HOST_PUBLIC_KEY_MD5 string
#> 231 ssh_host_public_key_sha256 CURLOPT_SSH_HOST_PUBLIC_KEY_SHA256 string
#> 232 ssh_hostkeydata CURLOPT_SSH_HOSTKEYDATA string
#> 233 ssh_hostkeyfunction CURLOPT_SSH_HOSTKEYFUNCTION function
#> 234 ssh_keydata CURLOPT_SSH_KEYDATA string
#> 235 ssh_keyfunction CURLOPT_SSH_KEYFUNCTION function
#> 236 ssh_knownhosts CURLOPT_SSH_KNOWNHOSTS string
#> 237 ssh_private_keyfile CURLOPT_SSH_PRIVATE_KEYFILE string
#> 238 ssh_public_keyfile CURLOPT_SSH_PUBLIC_KEYFILE string
#> 239 ssl_cipher_list CURLOPT_SSL_CIPHER_LIST string
#> 240 ssl_ctx_data CURLOPT_SSL_CTX_DATA string
#> 241 ssl_ctx_function CURLOPT_SSL_CTX_FUNCTION function
#> 242 ssl_ec_curves CURLOPT_SSL_EC_CURVES string
#> 243 ssl_enable_alpn CURLOPT_SSL_ENABLE_ALPN integer
#> 244 ssl_enable_npn CURLOPT_SSL_ENABLE_NPN integer
#> 245 ssl_falsestart CURLOPT_SSL_FALSESTART integer
#> 246 ssl_options CURLOPT_SSL_OPTIONS integer
#> 247 ssl_sessionid_cache CURLOPT_SSL_SESSIONID_CACHE integer
#> 248 ssl_verifyhost CURLOPT_SSL_VERIFYHOST integer
#> 249 ssl_verifypeer CURLOPT_SSL_VERIFYPEER integer
#> 250 ssl_verifystatus CURLOPT_SSL_VERIFYSTATUS integer
#> 251 sslcert CURLOPT_SSLCERT string
#> 252 sslcert_blob CURLOPT_SSLCERT_BLOB <NA>
#> 253 sslcerttype CURLOPT_SSLCERTTYPE string
#> 254 sslengine CURLOPT_SSLENGINE string
#> 255 sslengine_default CURLOPT_SSLENGINE_DEFAULT integer
#> 256 sslkey CURLOPT_SSLKEY string
#> 257 sslkey_blob CURLOPT_SSLKEY_BLOB <NA>
#> 258 sslkeytype CURLOPT_SSLKEYTYPE string
#> 259 sslversion CURLOPT_SSLVERSION integer
#> 260 stderr CURLOPT_STDERR string
#> 261 stream_depends CURLOPT_STREAM_DEPENDS string
#> 262 stream_depends_e CURLOPT_STREAM_DEPENDS_E string
#> 263 stream_weight CURLOPT_STREAM_WEIGHT integer
#> 264 suppress_connect_headers CURLOPT_SUPPRESS_CONNECT_HEADERS integer
#> 265 tcp_fastopen CURLOPT_TCP_FASTOPEN integer
#> 266 tcp_keepalive CURLOPT_TCP_KEEPALIVE integer
#> 267 tcp_keepidle CURLOPT_TCP_KEEPIDLE integer
#> 268 tcp_keepintvl CURLOPT_TCP_KEEPINTVL integer
#> 269 tcp_nodelay CURLOPT_TCP_NODELAY integer
#> 270 telnetoptions CURLOPT_TELNETOPTIONS string
#> 271 tftp_blksize CURLOPT_TFTP_BLKSIZE integer
#> 272 tftp_no_options CURLOPT_TFTP_NO_OPTIONS integer
#> 273 timecondition CURLOPT_TIMECONDITION integer
#> 274 timeout CURLOPT_TIMEOUT integer
#> 275 timeout_ms CURLOPT_TIMEOUT_MS integer
#> 276 timevalue CURLOPT_TIMEVALUE integer
#> 277 timevalue_large CURLOPT_TIMEVALUE_LARGE number
#> 278 tls13_ciphers CURLOPT_TLS13_CIPHERS string
#> 279 tlsauth_password CURLOPT_TLSAUTH_PASSWORD string
#> 280 tlsauth_type CURLOPT_TLSAUTH_TYPE string
#> 281 tlsauth_username CURLOPT_TLSAUTH_USERNAME string
#> 282 trailerdata CURLOPT_TRAILERDATA string
#> 283 trailerfunction CURLOPT_TRAILERFUNCTION function
#> 284 transfer_encoding CURLOPT_TRANSFER_ENCODING integer
#> 285 transfertext CURLOPT_TRANSFERTEXT integer
#> 286 unix_socket_path CURLOPT_UNIX_SOCKET_PATH string
#> 287 unrestricted_auth CURLOPT_UNRESTRICTED_AUTH integer
#> 288 upkeep_interval_ms CURLOPT_UPKEEP_INTERVAL_MS integer
#> 289 upload CURLOPT_UPLOAD integer
#> 290 upload_buffersize CURLOPT_UPLOAD_BUFFERSIZE integer
#> 291 url CURLOPT_URL string
#> 292 use_ssl CURLOPT_USE_SSL integer
#> 293 useragent CURLOPT_USERAGENT string
#> 294 username CURLOPT_USERNAME string
#> 295 userpwd CURLOPT_USERPWD string
#> 296 verbose CURLOPT_VERBOSE integer
#> 297 wildcardmatch CURLOPT_WILDCARDMATCH integer
#> 298 writedata CURLOPT_WRITEDATA string
#> 299 writefunction CURLOPT_WRITEFUNCTION function
#> 300 ws_options CURLOPT_WS_OPTIONS integer
#> 301 xferinfodata CURLOPT_XFERINFODATA string
#> 302 xferinfofunction CURLOPT_XFERINFOFUNCTION function
#> 303 xoauth2_bearer CURLOPT_XOAUTH2_BEARER string
httr_options("post")
#> httr libcurl type
#> 33 copypostfields CURLOPT_COPYPOSTFIELDS string
#> 97 httppost CURLOPT_HTTPPOST string
#> 131 mimepost CURLOPT_MIMEPOST string
#> 147 post CURLOPT_POST integer
#> 148 postfields CURLOPT_POSTFIELDS string
#> 149 postfieldsize CURLOPT_POSTFIELDSIZE integer
#> 150 postfieldsize_large CURLOPT_POSTFIELDSIZE_LARGE number
#> 151 postquote CURLOPT_POSTQUOTE string
#> 152 postredir CURLOPT_POSTREDIR integer
# Use curl_docs to read the curl documentation for each option.
# You can use either the httr or curl option name.
curl_docs("userpwd")
#> Please point your browser to the following url:
#> http://curl.haxx.se/libcurl/c/CURLOPT_USERPWD.html
curl_docs("CURLOPT_USERPWD")
#> Please point your browser to the following url:
#> http://curl.haxx.se/libcurl/c/CURLOPT_USERPWD.html