1 unstable release
0.1.0 | Feb 9, 2024 |
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#2632 in Command line utilities
6KB
70 lines
json-key-from-value |
If you often have big, unwieldy blobs of JSON which you have very deep trees in, it can be a pain to go from a value that you know is the field you want to retrieve to actually producing the correct selector.
json-key-from-value will, given some JSON and a value to find, tell you how to select it. If multiple keys or indexes are possible, they will all be printed.
Usage
For example, given the following JSON:
{"data":[{"foo":[
{"bar":[
{"id":1,"name":"yes"},
{"id":2,"name":"no"}
]},
{"baz":[
{"id":2,"name":null}
]}]
},{"qux":[
{"quux":
[[1,42],[2,2],[true, false]]
}]
}]}
% json-key-from-value yes < json
["data"][0]["foo"][0]["bar"][0]["name"]
% json-key-from-value 2 < json
["data"][0]["foo"][0]["bar"][1]["id"]
["data"][0]["foo"][1]["baz"][0]["id"]
["data"][1]["qux"][0]["quux"][1][0]
["data"][1]["qux"][0]["quux"][1][1]
% json-key-from-value true < json
["data"][1]["qux"][0]["quux"][2][0]
% json-key-from-value null < json
["data"][0]["foo"][1]["baz"][0]["name"]
Installation
cargo install json-key-from-value
Dependencies
~1.6–2.6MB
~50K SLoC