[erlang-questions] json handling map functions in erlang 17

Tristan Sloughter <>
Wed Feb 5 22:26:36 CET 2014

I ported jsx to maps [1]https://github.com/tsloughter/jsx/tree/maps

But I haven't rebased against the latest jsx in a while...

Tristan Sloughter

On Wed, Feb 5, 2014, at 01:22 PM, Björn-Egil Dahlberg wrote:

I have not read Joes final book on the matter (several drafts though)
.. and I've told him, twice I think, that there will *not* be any maps
to json BIFs to in the maps module. It does not belong in the standard

I do touch on the subject in the EEP
([2]https://github.com/erlang/eep/blob/master/eeps/eep-0043.md) under
"protocol construction".

However, it is encouraged that erlang json libraries make use of maps.

// Björn-Egil

2014-02-05 Zsolt Czinkos <[3]>:


I've read about some json handling functions in Joe Armstrong's book

(Programming Erlang, 2nd Edition, Page 84): maps:to_json/1,

maps:from_json/1 and maps:safe_from_json/1.

Now, In erlang shell, I see this. No such functions.

> maps:module_info(exports).



















Are these json functions planned to be released in final 17.0?




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1. https://github.com/tsloughter/jsx/tree/maps
2. https://github.com/erlang/eep/blob/master/eeps/eep-0043.md
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5. http://erlang.org/mailman/listinfo/erlang-questions
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