I am a complete firebase newbie, but basically my situation is this I am collecting weather data and storing it in firebase like so:
{
"-Kw2H2dbJKZbbg-6LA6b": {
"date": "10/9/2017",
"data": "filler test data",
}
}
And then I will display this info to my website. I am using Go with firego as my backend and I am wondering how could I query my db and print any individual field. For example I wish to display the date
"date": "10/9/2017"
Just in general how can this be done. Any help is much appreciated!
If the query result is stored as map[string]interface{}
then iterate over the results as:
//queryResults := ...
for _, val := range queryResults {
//test whether vmap is an object/not
vmap, ok := val.(map[string]interface{})
if !ok {
continue
}
//vmap contains {"date":..., "data":...}
field := "date"
if v, ok := vmap[field]; ok {
fmt.Printf("%s: %v
", field, v)
}
}
If you don't know the object's hierarchy, you can implement a kind of find
function to search for a specific key/field
from queryResults
. See https://stackoverflow.com/a/45757396/6207052.