英文:
Wrapping GraphQL query inside JSON string to send a request to GraphQL endpoint
问题
我正在尝试向一个GraphQL端点发送请求。我的问题是，以下代码返回"Problem parsing JSON"错误：
var jsonStr = []byte(`{ "query": "query { viewer { login } organization ( login:"org") { description } }`)
req, err := http.NewRequest("POST", url, bytes.NewBuffer(jsonStr))
而以下代码则返回了期望的响应：
var jsonStr = []byte(`{ "query": "query { viewer { login } }`)
req, err := http.NewRequest("POST", url, bytes.NewBuffer(jsonStr))
我猜测这可能与空格或双引号有关，但我不确定如何解决这个问题。我之所以将GraphQL查询封装在JSON中，是因为如果不是JSON字符串，bytes.NewBuffer会抛出错误，而我又不能在没有将字符串传递给bytes.NewBuffer之前进行http请求。非常感谢您能提供的任何见解。
英文:
I am trying to send a request to a graphql endpoint. My problem is that
var jsonStr = []byte(`{ "query": "query { viewer { login } organization ( login:"org") { description } }" `)
req, err := http.NewRequest("POST", url, bytes.NewBuffer(jsonStr))
Returns "Problem parsing JSON" and
var jsonStr = []byte(`{ "query": "query { viewer { login } }" `)
req, err := http.NewRequest("POST", url, bytes.NewBuffer(jsonStr))
Gives me back the desired response. I am assuming that this has to do with something like whitespace or double quotes, but I am unsure exactly how to fix this issue. The only reason I am encasing a GraphQL query inside JSON is because bytes.NewBuffer will throw an error if given anything other than a JSON string and I cannot make the httpRequest without first passing the string into bytes.NewBuffer. Thank you so much for whatever insight you can give me.
答案1
得分: 1
你的jsonStr变量中的JSON无效 - "query"对象内的引号需要转义。
你可以手动转义它们：
var jsonStr = []byte(`{ "query": "query { viewer { login } organization ( login:\"org\") { description } }" `)
req, err := http.NewRequest("POST", url, bytes.NewBuffer(jsonStr))
或者，如果我在写这段代码，我可能会使用JSON编组来构建这个对象，以避免手动转义JSON：
type QueryRequestBody struct {
Query string `json:"query"`
}
func main() {
var query = QueryRequestBody{
Query: `query { viewer { login } organization ( login:"org") { description } }`,
}
jsonStr, err := json.Marshal(query)
if err != nil {
panic(err)
}
req, err := http.NewRequest("POST", url, bytes.NewBuffer(jsonStr))
}
英文:
The json in your jsonStr variable is invalid - the quotes within the "query" object need to be escaped.
You can manually escape them:
var jsonStr = []byte(`{ "query": "query { viewer { login } organization ( login:\"org\") { description } }" `)
req, err := http.NewRequest("POST", url, bytes.NewBuffer(jsonStr))
Or, if I was writing this, I'd probably use JSON marshaling to construct this object to avoid needing to manually escape the JSON:
type QueryRequestBody struct {
Query string `json:"query"`
}
func main() {
var query = QueryRequestBody{
Query: `query { viewer { login } organization ( login:"org") { description } }`,
}
jsonStr, err := json.Marshal(query)
if err != nil {
panic(err)
}
req, err := http.NewRequest("POST", url, bytes.NewBuffer(jsonStr))
}
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