node.js - body-parser - extended option (qs vs querystring) -

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in current version of body-parser, extended option when using bodyparser.urlencoded() required. in readme, explains:

the extended option allows choose between parsing url-encoded data querystring library (when false) or qs library (when true).

[...]

defaults true, using default has been deprecated. please research difference between qs , querystring , choose appropriate setting.

i couldn't find helpful or specific information on this. found deprecated node-querystring.

should option true?

the reason message body-parser about change default value extended true false.

extended protocol uses qs library parse x-www-form-urlencoded data. main advantage of qs uses powerful serialization/deserialization algorithm, capable of serializing json-like data structure.

but web-browsers don't use protocol, because x-www-form-urlencoded designed serialize flat html forms. though, may come in handy if you're going send rich data structures using ajax.

querystring library` provides basic serialization/deserialization algorithm, 1 used web-browsers serialize form data. basic algorithm simpler extended one, limited flat data structures.

both algorithms work same flat data.

now, when know pros , cons of both algorithms, it's decide 1 suits application better.


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