join individual key:value maps into a single map using jq

Hi I have below code which has individual key:value maps needs to be merged into a single key:value map

From below code

{
    "Key1": "value1",
    "Key2": "value2",
    "Key3": "value3",
    "Key4": "value4"
}
{
    "Key1": "value1",
    "Key2": "value2",
    "Key3": "value3",
    "Key4": "value4"
}

To below code using jq

{
    "Key1": "value1",
    "Key2": "value2",
    "Key3": "value3",
    "Key4": "value4"
},
{
    "Key1": "value1",
    "Key2": "value2",
    "Key3": "value3",
    "Key4": "value4"
}

I cannot find the dupe, so here goes.

To add each file as element into one big array, you can use -s/--slurp with the identity filter .:

jq -s '.' file1.json file2.json

… or collect inputs into an array (with -n/--null-input):

jq -n '[inputs]' file1.json file2.json

or without -n:

jq '[., inputs]' file1.json file2.json

You can read more about the differences of slurping vs consuming inputs in https://stackoverflow.com/questions/73843868/difference-between-slurp-null-input-and-inputs-filter

Output:

[
  {
    "Key1": "value1",
    "Key2": "value2",
    "Key3": "value3",
    "Key4": "value4"
  },
  {
    "Key1": "value1",
    "Key2": "value2",
    "Key3": "value3",
    "Key4": "value4"
  }
]