Return string instead of array

[stefvanbuuren]

request_blend() should return a JSON string for the fields txt, session and site. That would make it conform to the swagger documentation.

[stefvanbuuren]

txt is still an array. unbox() does not seem to work.

[stefvanbuuren]

By default, OpenCPU calls return arrays of length 1 instead of strings. It is possible to suppress this behaviour by adding the query parameter auto_unbox=true.

$ curl http://james.groeidiagrammen.nl/version/json -d ''
{
  "package": ["james"],
  "packageVersion": ["1.6.4"],
  "packageDate": ["2024-05-12"],
  "Rversion": ["4.4.0"]
}
$ curl http://james.groeidiagrammen.nl/version/json?auto_unbox=true -d ''
{
  "package": "james",
  "packageVersion": "1.6.4",
  "packageDate": "2024-05-12",
  "Rversion": "4.4.0"
}