Is it the recommended way to pass a JSON string as a parameter value in a REST API?
REST is an architectural style and it doesn't enforce (or even define) any standards for passing JSON string as a parameter value.
If you want to send JSON in the query string, you must URL encode it first:
/v1/products?productName=&metrics=%7B%22memory%22%3A2%2C%22disk_space%22%3A10%7D
Alternativelly, you could redesign the parameters to be like:
/v1/products?productName=&metrics.memory=2&metrics.diskSpace=10
If the URL gets too long (or the query gets too complex to be expressed in the query string), you may want to consider POST
instead of GET
, and then send the JSON in the request payload:
POST /v1/products/search HTTP/1.1
Host: example.com
Content-Type: application/json
{
"productName": "foo",
"metrics": {
"memory": 2,
"diskSpace": 10
}
}