我有以下示例突变:
mutation {
checkoutCreate(input: {
lineItems: [{ variantId: "Z2lkOi8vc2hvcGlmeS9Qcm9kdWN0VmFyaWFudC80", quantity: 1 }]
}) {
checkout {
id
webUrl
lineItems(first: 5) {
edges {
node {
title
quantity
}
}
}
}
}
}
我正在使用.net GraphQL client。我想以某种方式将lineItems列表传递给此查询。我做了以下事情:
mutation {
checkoutCreate(input: {
$lineItems
}) {
checkout {
id
webUrl
lineItems(first: 5) {
edges {
node {
title
quantity
}
}
}
}
}
}
C#代码:
dynamic lineItems = new List<dynamic>
{
new
{
variantId = "Z2lkOi8vc2hvcGlmeS9Qcm9kdWN0VmFyaWFudC80",
quantity = 2
}
};
var request = new GraphQLRequest
{
Query = m_resource.Resource.GetString("CheckoutCreate"), // Gets from resource file the above string
Variables = lineItems
};
var response = await m_client.PostAsync(request);
我不断得到:
GraphQLHttpException:意外的HttpResponseMessage,代码为: BadRequest
有没有办法做到这一点?还是必须在字符串中替换?
编辑:
我已经尝试过此方法(以及其他20种方法,但仍然出现错误)。我要做的就是传递LineItems列表。
mutation CreateCheckout($input: LineItemsInput!) {
checkoutCreate(input: $input) {
checkout {
id
webUrl
lineItems(first: 5) {
edges {
node {
title
quantity
}
}
}
}
}
}
var request = new GraphQLRequest
{
Query = m_resource.Resource.GetString("CheckoutCreate"),
Variables = new
{
LineItemsInput = new List<dynamic>
{
new
{
variantId = "Z2lkOi8vc2hvcGlmeS9Qcm9kdWN0VmFyaWFudC80",
quantity = 2
}
}
}
};
Json请求看起来像这样:
{
"Query": "mutation CreateCheckout($input: LineItemsInput!) {\r\n checkoutCreate(input: $input) {\r\n checkout {\r\n id\r\n webUrl\r\n lineItems(first: 5) {\r\n edges {\r\n node {\r\n title\r\n quantity\r\n }\r\n }\r\n }\r\n }\r\n }\r\n}",
"OperationName": null,
"Variables": {
"LineItemsInput": [
{
"variantId": "Z2lkOi8vc2hvcGlmeS9Qcm9kdWN0VmFyaWFudC80",
"quantity": 2
}
]
}
}
答案 0 :(得分:1)
变量是一个对象,是一个值。
使用伪代码,您拥有variables = lineItems
,但您需要variables = { lineItems: lineItems }
答案 1 :(得分:1)
在查询本身中,您需要declare the variable and its type。就您而言,这看起来像
mutation CreateCheckout($lineItems: [LineItem!]!) {
checkoutCreate(input: {
$lineItems
}) { ... FieldsFromTheQuestion }
操作名称(CreateCheckout
)可以是任何对您有意义的名称;在架构中未指定。
@galkin的答案也可能是相关的:发出请求时,您需要在键"input"
下传递行项目列表,并与查询中的变量名匹配。 raw JSON request应该看起来像
{
"query": "mutation CreateCheckout ...",
"variables": {
"input": [
{
"variantId": "Z2lkOi8vc2hvcGlmeS9Qcm9kdWN0VmFyaWFudC80",
"quantity" 2
}
]
}
}
答案 2 :(得分:0)
感谢@galkin和@David Maze,我这样解决了它:
mutation checkoutCreate($input: CheckoutCreateInput!) {
checkoutCreate(input: $input) {
checkout {
id
}
checkoutUserErrors {
code
field
message
}
}
}
c#代码:
var request = new GraphQLRequest
{
Query = m_resource.Resource.GetString("CheckoutCreate"),
Variables = new
{
input = new
{
LineItems = lineItems // List<LineItem>
}
};