我正在尝试在 Unity 项目中使用 google automl 对象检测。
这是 google curl 命令示例:
curl -X POST \
-H "Authorization: Bearer $(gcloud auth application-default print-access-token)" \
-H "Content-Type: application/json" \
https://automl.googleapis.com/v1beta1/projects/${PROJECT_ID}/locations/us-central1/models/model-id:predict \
-d '{
"payload" : {
"image": {
"imageBytes" : "/9j/4AAQSkZJRgABAQAAAQ … "
},
}
}'
经过一番谷歌搜索后,我开始创建一个UnityWebRequest
测试响应:
WWWForm form = new WWWForm();
var postUrl = "https://automl.googleapis.com/v1beta1/projects/1043345783500/locations/us-central1/models/IOD1798528344157847552:predict";
using (UnityWebRequest www = UnityWebRequest.Post(postUrl, form))
{
www.SetRequestHeader("Authorization", @"Bearer $(gcloud auth application-default print-access-token)");
yield return www.SendWebRequest();
if (www.isNetworkError)
{
Debug.Log(www.error);
}
else if (www.isDone)
{
Debug.Log(www.downloadHandler.text);
}
}
所以谷歌的回复是:
{
"error": {
"code": 401,
"message": "Request had invalid authentication credentials. Expected OAuth 2 access token, login cookie or other valid authentication credential. See https://developers.google.com/identity/sign-in/web/devconsole-project.",
"status": "UNAUTHENTICATED"
}
}
我明白,我不是未经身份验证,但不明白我如何进行身份验证。我必须提出身份验证请求吗?如何?我是否必须发布一些内容才能获得访问令牌?那我应该寄到哪里呢?
我从谷歌服务器下载了一些凭据,但我真的不知道如何使用它......