https://community.blueprism.com/t5/Product-Forum/Send-file-throu-HTTP-Post-request/m-p/56696#M10833 > There is an input of the action called 'Post Data' but it is a collection and I do not know how to structure it. In general, open HTTP VBO and see how it works. (Or you can always create your own VBO) Basically ""Post Data"" should contain one row, rest is ignored. Get Body stage builds a string from it, for each column in that row in it adds urlencoded ""ColumnName=Value"" pairs separated by & Binary files are normally sent by browser as multipart/form-data instead of application/x-www-form-urlencoded, because latter adds significant overhead for big binary files - it looks like you'd have to create your own action for multipart/form-data, if you need it. Nevertheless, server should be able to accept application/x-www-form-urlencoded file too, which can be sent with HTTP VBO... just be prepared that your request might end up like 2-3 times the size of the actual file. Fri, 26 Oct 2018 19:12:00 GMT AndreyKudinov 2018-10-26T19:12:00Z https://community.blueprism.com/t5/Product-Forum/Send-file-throu-HTTP-Post-request/m-p/56694#M10831 Hi, I know this will be a very general question but I need a direction how to continue with this - I try to send a file via API using VBO 'Utility - HTTP', action 'Post'. I know I should very probably convert the file to binary, which I have done, but how to 'append' it to the request? There is an input of the action called 'Post Data' but it is a collection and I do not know how to structure it. The communication via http works since I get a customized error mesasge that I forgot to append a file. Thanks for any hints. Regards, Michal Klodner Tue, 23 Oct 2018 18:45:00 GMT https://community.blueprism.com/t5/Product-Forum/Send-file-throu-HTTP-Post-request/m-p/56694#M10831 MichalKlodner 2018-10-23T18:45:00Z https://community.blueprism.com/t5/Product-Forum/Send-file-throu-HTTP-Post-request/m-p/56695#M10832 Hi Michal, I have a similar problem. I gave up sending the file using BluePrism and used the command line to send the file instead. Maybe not the cleanest of solutions, but it works. Regards, Rudi   Fri, 26 Oct 2018 11:31:00 GMT https://community.blueprism.com/t5/Product-Forum/Send-file-throu-HTTP-Post-request/m-p/56695#M10832 Anonymous 2018-10-26T11:31:00Z https://community.blueprism.com/t5/Product-Forum/Send-file-throu-HTTP-Post-request/m-p/56696#M10833 > There is an input of the action called 'Post Data' but it is a collection and I do not know how to structure it. In general, open HTTP VBO and see how it works. (Or you can always create your own VBO) Basically ""Post Data"" should contain one row, rest is ignored. Get Body stage builds a string from it, for each column in that row in it adds urlencoded ""ColumnName=Value"" pairs separated by & Binary files are normally sent by browser as multipart/form-data instead of application/x-www-form-urlencoded, because latter adds significant overhead for big binary files - it looks like you'd have to create your own action for multipart/form-data, if you need it. Nevertheless, server should be able to accept application/x-www-form-urlencoded file too, which can be sent with HTTP VBO... just be prepared that your request might end up like 2-3 times the size of the actual file. Fri, 26 Oct 2018 19:12:00 GMT https://community.blueprism.com/t5/Product-Forum/Send-file-throu-HTTP-Post-request/m-p/56696#M10833 AndreyKudinov 2018-10-26T19:12:00Z https://community.blueprism.com/t5/Product-Forum/Send-file-throu-HTTP-Post-request/m-p/56697#M10834 Off topic, how do you convert the file name to Binary? Sat, 05 Jan 2019 01:58:00 GMT https://community.blueprism.com/t5/Product-Forum/Send-file-throu-HTTP-Post-request/m-p/56697#M10834 pranavred 2019-01-05T01:58:00Z