In my examples below I will replace my actual function id with "FUNCTIONID". Just know that yes I used the correct id.
I can issue this query in GraphQL (using version 2023-04 since you can't query for functions in earlier versions):
query
{
shopifyFunction(id:"FUNCTIONID"){
apiType
apiVersion
title
description
inputQuery
app {
id
}
}
}The query succeeds and it finds my function:
{
"data": {
"shopifyFunction": {
"apiType": "product_discounts",
"apiVersion": "2023-01",
"title": "volume-discounts",
"description": "",
"inputQuery": "query Input {\n cart {\n lines {\n quantity\n\t cost{\n\t\tamountPerQuantity{\n\t\t\tamount\n\t\t}\n\t }\n merchandise {\n __typename\n ...on ProductVariant {\n id\n\t\t\tproduct{\n\t\t\t\tid\n\t\t\t\tmetafield(namespace: \"nfusionsolutions\", key: \"pricetiers\"){\n\t\t\t\t\tvalue \n\t\t\t\t}\n\t\t\t}\t\t\t\t\n }\n }\n }\n }\n}\n",
"app": {
"id": "gid://shopify/App/4345823"
}
}
},
"extensions": {
"cost": {
"requestedQueryCost": 2,
"actualQueryCost": 2,
"throttleStatus": {
"maximumAvailable": 1000,
"currentlyAvailable": 967,
"restoreRate": 50
}
}
}
}
So I know this function exists. However, if I try a mutation it fails:
mutation {
discountAutomaticAppCreate(automaticAppDiscount: {
title: "Volume discount",
functionId: "FUNCTIONID",
startsAt: "2022-06-22T00:00:00"
}) {
automaticAppDiscount {
discountId
}
userErrors {
field
message
}
}
}
Here is the error response:
{
"data": {
"discountAutomaticAppCreate": {
"automaticAppDiscount": null,
"userErrors": [
{
"field": [
"automaticAppDiscount",
"functionId"
],
"message": "Function not found."
}
]
}
},
"extensions": {
"cost": {
"requestedQueryCost": 10,
"actualQueryCost": 10,
"throttleStatus": {
"maximumAvailable": 1000,
"currentlyAvailable": 973,
"restoreRate": 50
}
}
}
}
I have tried this in 2 development stores. One with "Checkout Extensibility" developer preview and one without. It fails in both.
The function I am trying to mutate is an extension that I have added using Shopify CLI and based on examples here (https://shopify.dev/docs/apps/discounts/experience/getting-started) and here (https://shopify.dev/docs/apps/selling-strategies/discounts/experience/config). It builds and deploys successfully to an existing public plugin that has been live in the Shopify store for some time (https://apps.shopify.com/precious-metal-product-prices). I can see the extension deployed in the partner developer dashboard under the details for that app. And as previously stated when that app is deployed to my test store I can query for that function in GraphQL. However, without the mutation my code is never called. What is the problem here and how can it be addressed?
