GraphQL Mutation with JSON Patch - graphql

Question

Are there any data types in GraphQL that can be used to describe a JSON Patch operation?
The structure of a JSON Patch operation is as follows.
{ "op": "add|replace|remove", "path": "/hello", "value": ["world"] }
Where value can be any valid JSON literal or object, such as.
"value": { "name": "michael" }
"value": "hello, world"
"value": 42
"value": ["a", "b", "c"]
op and path are always simple strings, value can be anything.

Answer 1

If you need to return JSON type then graphql have scalar JSON
which return any JSON type where you want to return it.
Here is schema
`
scalar JSON
type Response {
status: Boolean
message: String
data: JSON
}
type Test {
value: JSON
}
type Query {
getTest: Test
}
type Mutation {
//If you want to mutation then pass data as `JSON.stringify` or json formate
updateTest(value: JSON): Response
}
`
In resolver you can return anything in json format with key name "value"
//Query resolver
getTest: async (_, {}, { context }) => {
// return { "value": "hello, world" }
// return { "value": 42 }
// return { "value": ["a", "b", "c"] }
// return anything in json or string
return { "value": { "name": "michael" } }
},
// Mutation resolver
async updateTest(_, { value }, { }) {
// Pass data in JSON.stringify
// value : "\"hello, world\""
// value : "132456"
// value : "[\"a\", \"b\", \"c\"]"
// value : "{ \"name\": \"michael\" }"
console.log( JSON.parse(value) )
//JSON.parse return formated required data
return { status: true,
message: 'Test updated successfully!',
data: JSON.parse(value)
}
},
the only thing you need to specifically return "value" key to identify to get in query and mutation
Query
{
getTest {
value
}
}
// Which return
{
"data": {
"getTest": {
"value": {
"name": "michael"
}
}
}
}
Mutation
mutation {
updateTest(value: "{ \"name\": \"michael\" }") {
data
status
message
}
}
// Which return
{
"data": {
"updateTest": {
"data": null,
"status": true,
"message": "success"
}
}
}