I am building an API using GraphQL and one of the options of the API is to place an order
I am using Go 1.16 with graphql-go as the GraphQL backend
The JSON format for the PlaceOrder API call is:
{
"order_reference":"unique order reference",
"customer_order_reference":"customer order reference",
"email_address":"[email protected]",
"phone_number":"0123456789",
"billing_address":{
"name":"Billing name",
"address_line_one":"Billing line one",
"address_line_two":"Billing line two",
"address_line_three":"Billing line three",
"address_line_four":"Billing line four",
"postcode":"billing postcode"
},
"delivery_address":{
"name":"Delivery name",
"address_line_one":"Delivery line one",
"address_line_two":"Delivery line two",
"address_line_three":"Delivery line three",
"address_line_four":"Delivery line four",
"postcode":"Delivery postcode"
},
"order_lines":[
{
"product_code":"123456",
"quantity":1
},
{
"product_code":"654321",
"quantity":2
}
]
}
In the Go code I have the Schema fields setup as:
graphql.Fields{
"placeOrder": &graphql.Field{
Type: order.PlaceOrder(),
Args: graphql.FieldConfigArgument{
"order_reference": &graphql.ArgumentConfig{
Type: graphql.String,
},
"customer_order_reference": &graphql.ArgumentConfig{
Type: graphql.String,
},
"email_address": &graphql.ArgumentConfig{
Type: graphql.String,
},
"phone_number": &graphql.ArgumentConfig{
Type: graphql.String,
},
"billing_address": &graphql.ArgumentConfig{
Type: graphql.NewObject(
graphql.ObjectConfig{
Name: "BillingAddress",
Fields: graphql.Fields{
"name": &graphql.Field{
Type: graphql.String,
},
"address_line_one": &graphql.Field{
Type: graphql.String,
},
"address_line_two": &graphql.Field{
Type: graphql.String,
},
"address_line_three": &graphql.Field{
Type: graphql.String,
},
"address_line_four": &graphql.Field{
Type: graphql.String,
},
"postcode": &graphql.Field{
Type: graphql.String,
},
},
},
),
},
"delivery_address": &graphql.ArgumentConfig{
Type: graphql.NewObject(
graphql.ObjectConfig{
Name: "DeliveryAddress",
Fields: graphql.Fields{
"name": &graphql.Field{
Type: graphql.String,
},
"address_line_one": &graphql.Field{
Type: graphql.String,
},
"address_line_two": &graphql.Field{
Type: graphql.String,
},
"address_line_three": &graphql.Field{
Type: graphql.String,
},
"address_line_four": &graphql.Field{
Type: graphql.String,
},
"postcode": &graphql.Field{
Type: graphql.String,
},
},
},
),
},
"order_lines": &graphql.ArgumentConfig{
Type: graphql.NewList(graphql.NewObject(
graphql.ObjectConfig{
Name: "Line",
Fields: graphql.Fields{
"part_number": &graphql.Field{
Type: graphql.String,
},
"quantity": &graphql.Field{
Type: graphql.String,
},
},
},
)),
},
},
Resolve: func(p graphql.ResolveParams) (interface{}, error) {
// Code to interact with Database and assign value to status, reference depending on result of database INSERT and return as "response"
return response, nil
},
},
}
I have tried a few different ways of passing data to the addresses and order lines but don't seem to be able to get them passed through successfully: For example I tried the below and the map[] is the result of fmt.Printf("%+v\n", p.Args)
query:
{
placeOrder(
order_reference:"order reference"
customer_order_reference: "cust order reference"
billing_address: {
name: "Billing Name"
address_line_one: "Address line one"
address_line_two: "Address line one"
address_line_three: "Address line one"
address_line_four: "Address line one"
postcode: "Post code"
}
delivery_address: {
name: "Delivery Name"
address_line_one: "Address line one"
address_line_two: "Address line one"
address_line_three: "Address line one"
address_line_four: "Address line one"
postcode: "Post code"
}
order_lines: [
{
part_number: "123456"
quantity: 1
}
]
){
status,
reference
}
}
result:
map[
customer_order_reference:cust order reference
order_lines:[<nil>]
order_reference:order reference
]
Answer provided by @xadm
Solution highlighted in https://stackoverflow.com/a/41230015/6124657
var InputType = graphql.NewInputObject(
graphql.InputObjectConfig{
Name: "InputTypeName",
Fields: graphql.InputObjectConfigFieldMap{
"sub_field_one": &graphql.InputObjectFieldConfig{
Type: graphql.String,
},
"sub_field_two": &graphql.InputObjectFieldConfig{
Type: graphql.String,
},
},
},
)
In the Args section replace the original NewObject(...) with NewInputObject(...)
"billing_address": &graphql.ArgumentConfig{
Type: graphql.NewInputObject(
graphql.InputObjectConfig{
Name: "BillingAddress",
Fields: graphql.InputObjectConfigFieldMap{
"address_line_one": &graphql.InputObjectFieldConfig{
Type: graphql.String,
},
"address_line_two": &graphql.InputObjectFieldConfig{
Type: graphql.String,
},
...
},
},
),
},
This generates a map with the sub fields