Hi Marco, What about using a root element like :
<json type='array'> ... </json> Best regards, Fabrice ETANCHAUD -----Message d'origine----- De : [email protected] [mailto:[email protected]] De la part de Marco Lettere Envoyé : lundi 23 janvier 2017 09:32 À : BaseX <[email protected]> Objet : [basex-talk] RestXQ returning JSON Hello all, this morning just stumbled into this issue and I'm wondering whether it could be somehow smoothed up ... I have the following RestXQ function: declare %rest:path("/f") %rest:GET %output:method("json") function a:f() { (:code ...:) }; 1) Replacing comment with the following code correctly returns an empty object: let $out := (<json type="object"></json>) return $out 2) Replacing comment with the following code correctly returns an expected exception (" [SERE0023] Only one item can be serialized with JSON." : let $out := (<json type="object"></json>, <json type="object"></json>) return $out 3) Replacing comment with the following code returns a somewhat less expected Null-pointer exception : let $out := (<json type="object"></json>, <json type="object"></json>) return array{$out} 4) In order to get the expected Json array I need to write the code like the following: let $out := (<json type="object"></json>, <json type="object"></json>) return array{ $out ! json:parse(json:serialize(.), map{ "format" : "map"}) } I'm not sure whether the array could be inferred from the sequence directly in a pattern like 2. But I would expect that 3) should work. Isn't it? Thanks for any explanation. Regards, Marco.
