Github GraphQL API v4 Query on CommitAuthor - graphql

Question

I am trying to run the following query on Githubs GraphQL api:
{
user(login: "davekaj") {
id
repositories(first: 10, orderBy: {field: NAME, direction: ASC}) {
nodes {
ref(qualifiedName: "master") {
target {
... on Commit {
history(first: 15, author: "WHAT DO I PUT HERE") {
totalCount
nodes {
additions
author {
name
user {
id
}
}
committedDate
deletions
}
}
}
}
}
}
}
}
}
It wants me to filter on a CommitAuthor for history(author: ). I tried passing my username, or my unique user ID, but it doesn't work. I am essentially passing it a string, but it wants the type CommitAuthor. How do I pass a CommitAuthor value?
It isn't clear to me, and I searched through the docs and the schema and I couldn't find anything.
Please help!

Answer 1

Ah, so the answer is actually very simple once I looked at the graphql documentation (rather than just the github documentation). CommitAuthor is an input type, which is described here https://graphql.org/graphql-js/mutations-and-input-types/.
The result is you pass an object of CommitAuthor. In this case I just have to pass the id, which looks like this: author: {id: "MDQ6VXNlcjIyNDE3Mzgy"}
See the completed code below.
{
user(login: "davekaj") {
id
repositories(first: 10, orderBy: {field: NAME, direction: ASC}) {
nodes {
ref(qualifiedName: "master") {
target {
... on Commit {
history(first: 15, author: {id: "MDQ6VXNlcjIyNDE3Mzgy"}) {
totalCount
nodes {
additions
author {
name
user {
id
}
}
committedDate
deletions
}
}
}
}
}
}
}
}
}