无法使用Mapbox的“创建上传" api上传数据文件 [英] Unable to use Mapbox "Create an Upload" api to upload data file
问题描述
我正在尝试使用其上传api将我的本地json文件上传到mapbox .我正在按照以下步骤操作:
I am trying to upload my local json file to mapbox using their upload api. I am following below steps:
- 获取S3凭据以暂存文件
- 使用AWS开发工具包之类的S3客户端,使用这些凭据将文件上传到S3
- 使用暂存文件的URL创建上传
- 在将上载处理为图块集时检索上载状态
- 上传完成后,请像使用其他任何图块一样使用图块ID.
我完成了第1步和第2步,但是在第3步出现了以下错误:
I completed steps 1 and 2 but getting following error on steps 3:
远程服务器返回错误:(422)无法处理的实体.
The remote server returned an error: (422) Unprocessable Entity.
下面是我的代码(步骤1):
class Program
{
static void Main(string[] args)
{
var getCredsUrl= @"https://api.mapbox.com/uploads/v1/{my_mapbox_username}/credentials?access_token={my_mapbox_token}";
var request = (HttpWebRequest)WebRequest.Create(getCredsUrl);
request.AutomaticDecompression = DecompressionMethods.GZip;
using (var response = (HttpWebResponse)request.GetResponse())
using (var stream = response.GetResponseStream())
if (stream != null)
using (var reader = new StreamReader(stream))
{
var res = reader.ReadToEnd();
var mbS3Credentials = JObject.Parse(res);
var accessKeyId = (string)mbS3Credentials["accessKeyId"];
var bucket = (string)mbS3Credentials["bucket"];
var key = (string)mbS3Credentials["key"];
var secretAccessKey = (string)mbS3Credentials["secretAccessKey"];
var sessionToken = (string)mbS3Credentials["sessionToken"];
var serviceUrl = (string)mbS3Credentials["url"];
var localFilePath = "c:\\users\\saurabh\\documents\\visual studio 2015\\Projects\\MapboxTileSetUpload\\MapboxTileSetUpload\\data\\localFile.json";
var amazonS3Uploader = new AmazonS3Uploader(accessKeyId, secretAccessKey, sessionToken, serviceUrl + "localFile.json");
var suucess = amazonS3Uploader.UploadFile(localFilePath, bucket, key);
if (suucess)
{
string createUploadUrl =
@"https://api.mapbox.com/uploads/v1/{my_mapbox_username}?access_token={my_mapbox_token}";
string tileSet = "{my_mapbox_username}.myTileSet";
string s3BucketFileUrl = serviceUrl + "/localFile.json";
string name = "example-dataset";
var createUpload = new MapboxUploader(createUploadUrl, tileSet, s3BucketFileUrl, name);
createUpload.CreateUpload();
}
}
}
}
上传到Amazon S3(步骤2):
public class AmazonS3Uploader
{
private readonly AmazonS3Client _s3Client;
public AmazonS3Uploader(string accessKeyId, string secretAccessKey, string sessionToken, string serviceUrl)
{
var s3Config = new AmazonS3Config
{
ServiceURL = serviceUrl, RegionEndpoint = RegionEndpoint.USEast1,
ForcePathStyle = true,
};
_s3Client = new AmazonS3Client(accessKeyId, secretAccessKey, sessionToken, s3Config);
}
public bool UploadFile(string filePath, string s3BucketName, string key)
{
//save in s3
var s3PutRequest = new PutObjectRequest
{
FilePath = filePath, BucketName = s3BucketName,
Key = key, CannedACL = S3CannedACL.PublicRead
};
s3PutRequest.Headers.Expires = new DateTime(2020, 1, 1);
try
{
PutObjectResponse s3PutResponse = this._s3Client.PutObject(s3PutRequest);
if (s3PutResponse.HttpStatusCode.ToString() == "OK")
return true;
else
return false;
}
catch (Exception ex)
{
//handle exceptions
return false;
}
}
}
创建Mapbxo上传文件(第3步:出现错误):
public class MapboxUploader
{
private readonly string _createUploadUrl;
private readonly string _tileSet;
private readonly string _s3Fileurl;
private readonly string _name;
public MapboxUploader(string createUploadUrl, string tileSet, string s3BucketFileUrl, string name)
{
_createUploadUrl = createUploadUrl; _tileSet = tileSet;
_s3Fileurl = s3BucketFileUrl; _name = name;
}
public async Task<bool> HttpClient()
{
using (var client = new WebClient())
{
client.BaseAddress = new Uri(this._createUploadUrl);
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
Dictionary<string, string> data = new Dictionary<string, string>() { { "tileset", this._tileSet }, { "url", this._s3Fileurl }, { "name", this._name } };
var postData = new StringContent(JsonConvert.SerializeObject(data), Encoding.UTF8, "application/json");
try
{
var response = await client.PostAsync(this._createUploadUrl, postData);
return true;
}
catch (Exception ex)
{
return false;
}
}
}
}
我的猜测是我无法在步骤2将文件上传到S3存储桶.这是步骤2的响应:
My guess is I am not able to upload files to S3 bucket at step 2. Here is the response from step 2:
在第3步中,我收到一个无法处理的错误,错误消息为无法访问url ,所以我猜我的S3存储桶文件不可访问.
And at step 3, I get an unprocessable error, with error message Could not access url So I guess my S3 bucket file is not accessible.
当我尝试向浏览器输入上传的文件S3存储桶URL时,出现访问被拒绝错误:
When I try to enter the uploaded file S3 bucket URL to the browser, I get access denied error:
Mapbox访问令牌范围:
Mapbox Access Token scopes:
我在这里到底想念什么.
What exactly I am missing here.
推荐答案
您的错误在此行的step1中:
your error is in the step1 at this line :
string s3BucketFileUrl = serviceUrl + "/localFile.json";
文件名"/localFile.json"
消失了,因为aws已经为您提供了文件所在的完整路径
the filename "/localFile.json"
does not go, because aws already gives you the full path where the file will be
这篇关于无法使用Mapbox的“创建上传" api上传数据文件的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!