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Posted to jira@arrow.apache.org by "Antoine Pitrou (Jira)" <ji...@apache.org> on 2021/05/12 18:03:00 UTC

[jira] [Comment Edited] (ARROW-7594) [C++] Implement HTTP and FTP file systems

    [ https://issues.apache.org/jira/browse/ARROW-7594?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17343421#comment-17343421 ] 

Antoine Pitrou edited comment on ARROW-7594 at 5/12/21, 6:02 PM:
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We could use libCURL directly or try to leverage one of the existing C++ wrapper libraries, e.g. [https://whoshuu.github.io/cpr/] or https://github.com/JosephP91/curlcpp

We would probably want to use the "multi" API which allows for concurrency and non-blocking operations.
https://curl.se/libcurl/c/libcurl-multi.html

though another possibility is to use the "easy" API in a dedicated thread together with custom callbacks.



was (Author: pitrou):
We could use libCURL directly or try to leverage one of the existing C++ wrapper libraries, e.g. [https://whoshuu.github.io/cpr/] or https://github.com/JosephP91/curlcpp

We would probably want to use the "multi" API which allows for concurrency and non-blocking operations.
https://curl.se/libcurl/c/libcurl-multi.html

> [C++] Implement HTTP and FTP file systems
> -----------------------------------------
>
>                 Key: ARROW-7594
>                 URL: https://issues.apache.org/jira/browse/ARROW-7594
>             Project: Apache Arrow
>          Issue Type: New Feature
>          Components: C++
>    Affects Versions: 0.15.1
>            Reporter: Ben Kietzman
>            Priority: Major
>
> It'd be handy to have (probably read only) a generic filesystem implementation which wrapped {{any cURLable base url}}:
> {code}
> ARROW_ASSIGN_OR_RAISE(auto fs, HttpFileSystem::Make("https://some.site/json-api/v3"));
> ASSERT_OK_AND_ASSIGN(auto json_stream, fs->OpenInputStream("slug"));
> // ...
> {code}



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