Examples on query and mutation¶
Fetch information of devices¶
query{
devices{
name # e.g. get the names of all devices
}
}
query{
devices(pattern: "*tg_test*"){ #filter result with pattern
name
}
}
Accessing attributes¶
query{
devices(pattern: "sys/tg_test/1"){
name,
attributes {
name,
datatype,
}
}
}
query{
devices(pattern: "sys/tg_test/1"){
name,
attributes(pattern: "*scalar*") {
name,
datatype,
dataformat,
label,
unit,
description,
value,
quality,
timestamp
}
server{
id,
host
}
}
}
Deleting device property¶
mutation{
deleteDeviceProperty(device:"sys/tg_test/1", name: "Hej"){
ok,
message
}
}
Putting device property¶
mutation{
putDeviceProperty(device:"sys/tg_test/1", name: "Hej", value: "test"){
ok,
message
}
}
Deleting device property¶
mutation{
deleteDeviceProperty(device:"sys/tg_test/1",name:"Hej"){
ok,
message
}
}
Setting value for an attribute¶
mutation{
SetAttributeValue(device:"sys/tg_test/1", name: "double_scalar",value: 2){
ok,
message
}
}
Query all tango classes¶
query{
classes(pattern:"*"){
name
}
}
Query all tango classes and corresponding devices¶
query{
classes(pattern:"*"){
name
devices {
name
}
}
}