Can ayone provide example of GraphQL mutation?

[epicfail169]

In the documentation I found only an example of a basic queries, but I don’t understand what to do with a mutation

[rrubio]

Hey mate, i haven't played with GraphQL in a while, but this might help you.

https://strapi.io/blog/a-deep-dive-into-strapi-graph-ql

[olrtg]

const graphql = useStrapiGraphQL()

const updateDiet = (documentId, data) => graphql(`
    mutation Mutation($documentId: ID!, $data: DietInput!) {
      updateDiet(documentId: $documentId, data: $data) {
        ...
    }
  `,
  {documentId, data}
)

updateDiet("...", {foo: "bar"})