cURL dan Postman HTTP POST berfungsi, tetapi permintaan Golang gagal dengan status 400

问题内容

我正在尝试通过 HTTP POST 以 JSON 格式发送 GooglePay 令牌。该请求在 cURL 和 Postman 上工作正常，但当我尝试使用 Go HTTP 请求时，服务器抱怨数据格式无效，HTTP 响应状态代码为 400。

cURL

curl --verbose --location 'https://fts-uat.cardconnect.com/cardsecure/api/v1/ccn/tokenize' \
    --header 'Content-Type: application/json' \
    --data '{
    "encryptionhandler": "EC_GOOGLE_PAY",
    "devicedata": "{\"signature\":\"MEQCIDTsnaYiwckYQFYky0i0wSn317HcKuAYrNYfh4Uw6Y4lAiAhDPxmheYFOEDGVYjVjZnPFHOrbYHwDUbkcYIxZDqU/w\\u003d\\u003d\",\"intermediateSigningKey\":{\"signedKey\":\"{\\\"keyValue\\\":\\\"MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEYD8gO936PEY6yEFDQolKLMcpKvjo1uZEdnKZ022tUOAERQKaEpoT6RAd6nDm1FbbFRUdionunr3vy/o72nSQ6w\\\\u003d\\\\u003d\\\",\\\"keyExpiration\\\":\\\"1701182324996\\\"}\",\"signatures\":[\"MEUCIQCbEHBbAXI/WEfguCnTkYYwgQeFZcN4/oBS8O79oQGl4wIgOmXKIihg6Ia9b7bUJckKAGrPF70fHZjCJcPGv88MMjA\\u003d\"]},\"protocolVersion\":\"ECv2\",\"signedMessage\":\"{\\\"encryptedMessage\\\":\\\"ynexar8PqRG3y1zKbNBUbbwRHbAbElnk2imema+8Zx89ex91/pgdy5ZzZKNhJ+LHJonuQKvdI9h0gWikhap7Jp6kqrnu0b4OzMxrRoj5wteUzDmm77F7WsBxi2DkIsqzcReDBZiTO3BSrJwvIkeL8mYr2yfVTZ0qY3KqCqXkzx0ANT3mZEdltqSEGOKaJKV38S1Oq0vGzQCKLxFI7Cxz5RHlTIM0WfBUigALfa+yJO4J6Tev0d4e9CYChz5DA/sBKxPf37796IxmvxxvNpytVqXYHKQWg6iAVfeKs8wbR6KA12mb6zqwTOrrLBrnLWdaBbX12flyvPFVywSJFHzTkV8WEB9mVoKrm/A2b27UV8RGFNrr9djCE1FZIgyS36VJVefLKlWQkeSGNESuLn0d7ftkv92+Gds2Hl9TQbAyy+IcGVERmQPo2EOhxf1xOpSQU8bTxLIFr+WqzGM0Q1+PquqxzQ\\\\u003d\\\\u003d\\\",\\\"ephemeralPublicKey\\\":\\\"BMAjXpWcm+kQlvIMzdhAnOJK+5RViyCaPA35gXTJGvW5pKZ6zDxD14cQYHfhccJZli24Fc+JbqnvIvtc6Yo19d8\\\\u003d\\\",\\\"tag\\\":\\\"3ZumWWU6hOw+f5V5GIKr6di4AkA0s3kzigqP3V1YzVo\\\\u003d\\\"}\"}"
}'

Go语言

url := "https://fts-uat.cardconnect.com/cardsecure/api/v1/ccn/tokenize"

    data := `{
        "encryptionhandler": "EC_GOOGLE_PAY",
        "devicedata": "{\"signature\":\"MEQCIDTsnaYiwckYQFYky0i0wSn317HcKuAYrNYfh4Uw6Y4lAiAhDPxmheYFOEDGVYjVjZnPFHOrbYHwDUbkcYIxZDqU/w\\u003d\\u003d\",\"intermediateSigningKey\":{\"signedKey\":\"{\\\"keyValue\\\":\\\"MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEYD8gO936PEY6yEFDQolKLMcpKvjo1uZEdnKZ022tUOAERQKaEpoT6RAd6nDm1FbbFRUdionunr3vy/o72nSQ6w\\\\u003d\\\\u003d\\\",\\\"keyExpiration\\\":\\\"1701182324996\\\"}\",\"signatures\":[\"MEUCIQCbEHBbAXI/WEfguCnTkYYwgQeFZcN4/oBS8O79oQGl4wIgOmXKIihg6Ia9b7bUJckKAGrPF70fHZjCJcPGv88MMjA\\u003d\"]},\"protocolVersion\":\"ECv2\",\"signedMessage\":\"{\\\"encryptedMessage\\\":\\\"ynexar8PqRG3y1zKbNBUbbwRHbAbElnk2imema+8Zx89ex91/pgdy5ZzZKNhJ+LHJonuQKvdI9h0gWikhap7Jp6kqrnu0b4OzMxrRoj5wteUzDmm77F7WsBxi2DkIsqzcReDBZiTO3BSrJwvIkeL8mYr2yfVTZ0qY3KqCqXkzx0ANT3mZEdltqSEGOKaJKV38S1Oq0vGzQCKLxFI7Cxz5RHlTIM0WfBUigALfa+yJO4J6Tev0d4e9CYChz5DA/sBKxPf37796IxmvxxvNpytVqXYHKQWg6iAVfeKs8wbR6KA12mb6zqwTOrrLBrnLWdaBbX12flyvPFVywSJFHzTkV8WEB9mVoKrm/A2b27UV8RGFNrr9djCE1FZIgyS36VJVefLKlWQkeSGNESuLn0d7ftkv92+Gds2Hl9TQbAyy+IcGVERmQPo2EOhxf1xOpSQU8bTxLIFr+WqzGM0Q1+PquqxzQ\\\\u003d\\\\u003d\\\",\\\"ephemeralPublicKey\\\":\\\"BMAjXpWcm+kQlvIMzdhAnOJK+5RViyCaPA35gXTJGvW5pKZ6zDxD14cQYHfhccJZli24Fc+JbqnvIvtc6Yo19d8\\\\u003d\\\",\\\"tag\\\":\\\"3ZumWWU6hOw+f5V5GIKr6di4AkA0s3kzigqP3V1YzVo\\\\u003d\\\"}\"}"
    }`

    req, _ := http.NewRequest(http.MethodPost, url, strings.NewReader(data))
    req.Header.Set("Content-Type", "application/json")

    client := &http.Client{}
    resp, err := client.Do(req)
    if err != nil {
        panic(err)
    }

    fmt.Println("Response Status:", resp.Status)

我尝试使用 nc 打印来自 cURL、Postman 和 GoLang 的所有 HTTP 标头和正文，它们看起来相同。我还操纵了用户代理以保持一致，但还没有运气。感谢任何帮助。

正确答案

简短回答

添加此：

req.ContentLength = 0

长答案

天知道什么原因，服务器只接受Transfer-Encoding：chunked。所以当您发送“正常”请求时，它看起来像这样 失败：

POST /cardsecure/api/v1/ccn/tokenize HTTP/1.1
Host: fts-uat.cardconnect.com
Content-Length: 1373

当您添加上述代码时，它看起来像这样并通过：

POST /cardsecure/api/v1/ccn/tokenize HTTP/1.1
Host: fts-uat.cardconnect.com
Transfer-Encoding: chunked

Atas ialah kandungan terperinci cURL dan Postman HTTP POST berfungsi, tetapi permintaan Golang gagal dengan status 400. Untuk maklumat lanjut, sila ikut artikel berkaitan lain di laman web China PHP!