Firebase looking for

Hallo!
How can I get the rest of the information by just giving the id. e.g.

looks up id: 1
gets Tom and separately Cruse

Screenshot 2022-09-13 200616

Is this your full json response obtained from web got text?

Because this is not a proper json structure

[
{
“art”: 2110013.54,
“lager”: “24-01-01”
},
{
“art”: 2110013.44,
“lager”: “24-01-02”
},
{
“art”: 2110013.74,
“lager”: “24-01-03”
},
{
“art”: 2110013.64,
“lager”: “24-01-04”
},
{
“art”: 2110013.14,
“lager”: “24-01-05”
},
{
“art”: 2110013.04,
“lager”: “24-01-06”
},
{
“art”: 2110013.17,
“lager”: “22-01-01”
},
{
“art”: 2110058.17,
“lager”: “22-02-01”
},
{
“art”: 2110059.17,
“lager”: “22-02-02”
},
{
“art”: 2110059.07,
“lager”: “22-02-03”

its part of json