If you are NOT using the ECMWF Gateways (ecaccess or msaccess) then please refer to the previous user guide for accessing the ECaccess Web Services V1. This documentation is about ECaccess Web Services V2 which is currently only available at ECMWF. At heart, ECaccess Web Services APIs use JSON as a data format and HTTPS as a protocol for data transmission. ECMWF has released a full-featured Perl client library to make interacting with ECaccess Web Services APIs easier. However, if Perl is not available on your platform or you are not able to install additional software then CURL is an alternative to interact with the ECaccess Web Services. CURL is a command-line application for performing requests using a variety of protocols including HTTPS, required to interact with the APIs at a low level. In this document we assume that you are already familiar with the ECaccess Services. If this is not the case then please have refer to other sections in this User Guide to learn about the concepts behind Gateways, Operations, Associations, Protocols, Files, Jobs, Events, Queues and Transfers.
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Obtaining CURL
CURL is commonly available on a default install of many UNIX/Linux platforms. Try typing curl in your favorite shell to see if it is installed and in your PATH. If you don't have the tool installed, visit the download page on the CURL website to obtain the official source or a user-contributed binary package: http://curl.haxx.se/download.html
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