Reading value from JSON string Scala using ScalaJson -


i have json response follow

{   ......,    "phonenumbers":[    {     "info":[    ],   "phonenumber":"1234567890",   "phonenumbertype":"home_number"  },  {   "info":[    ],   "phonenumber":"9876543210",   "phonenumbertype":"work_number"  },  {   "info":[    ],   "phonenumber":"7418529630",   "phonenumbertype":"mobile_number"  } ],  .......  }

i need extract mobile number , try this

  val jsonbody = json.parse(phonelistresponse.body)   val phonelist: seq[jsvalue] = (jsonbody \\ "phonenumbers")   val mobilenodes: seq[jsvalue] = phonelist.filter(number => {    (number \\ "phonenumbertype").head.asinstanceof[jsstring].value == "mobile_number"   })   (mobilenodes.head \\ "phonenumber").head.asinstanceof[jsstring].value

but mobilenodes empty. suggestion?

if using play-json

val phonelist: seq[string] =   ((jsonbody \\ "phonenumbers")(0).as[list[jsvalue]])  .filter(x => (x \ "phonenumbertype").as[string] == "mobile_number")  .map(x => (x \ "phonenumber").as[string])

repl output

scala>  ((json \\ "phonenumbers")(0).as[list[jsvalue]]).foreach(println) {"info":[],"phonenumber":"1234567890","phonenumbertype":"home_number"} {"info":[],"phonenumber":"9876543210","phonenumbertype":"work_number"} {"info":[],"phonenumber":"7418529630","phonenumbertype":"mobile_number"}  scala>  ((json \\ "phonenumbers")(0).as[list[jsvalue]]).filter(x => (x \ "phonenumbertype").as[string] == "mobile_number") res31: list[play.api.libs.json.jsvalue] = list({"info":[],"phonenumber":"7418529630","phonenumbertype":"mobile_number"})  scala>  ((json \\ "phonenumbers")(0).as[list[jsvalue]]).filter(x => (x \ "phonenumbertype").as[string] == "mobile_number").map(x => (x \ "phonenumber").as[string]) res32: list[string] = list(7418529630)

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