Powershell 调用 RestMethod 错误 415 不支持的媒体类型

Question

我正在尝试Azure Table Storage API使用 Powershell执行，Invoke-RestMethod但它返回415 error。

这是Powershell代码：

$accessKey = "accesskey"
$account_name = "storage account"
$table_name = "table storage"
$date = "Fri, 10 Nov 2017 00:47:55 GMT"
$api_version = "2015-12-11"
$table_url = "https://$account_name.table.core.windows.net/$table_name"
$data_type = "application/json"
$signature = "generated signature"
$body = @{
Address="Mountain View";
Age="23"
}
$json = $body | Convertto-JSON
$table_headers = @{
"x-ms-date" = $date
"x-ms-version" = $api_version
"Authorization" = "SharedKey $account_name`:$signature"
"Content-Type" = $data_type
}

Invoke-RestMethod -Method POST -Uri $table_url -Headers $table_headers -Body $json -Verbose

远程服务器返回错误：

??: GET https://preprodtelemaapim.management.azure-api.net/reports/byApi?api-version=2017-03-01& $filter=timestamp+ge+datetime'2017-10-16T00:00:00' +and+timestamp+le+datetime'2017-10-17T00:00:00' with 0-byte payload ??：收到内容类型为 application/json 的 4841 字节响应；charset=utf-8 ??: POST https://telemaapimlog.table.core.windows.net/reporttable带 -1 字节有效载荷 Invoke-RestMethod : ???? ????????????????*: (415) 不支持的媒体类型 C:\Users\sasaki.hikaru\Desktop\repot.ps1:83 ??:1 + Invoke-RestMethod -Method POST -Uri $table_url -Headers $table_headers -Body $js ... + ~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~ + CategoryInfo : InvalidOperation: (System.Net.HttpWebRequest:HttpWebRequest) [Invoke-RestMethod]?WebException +fullyQualifiedErrorId : WebCmdletWebResponseException,Microsoft.PowerShell.Commands.InvokeRestMethodCommand

我在这个网站上读过一些类似的问题，但它们主要不是内容类型或 json 描述问题，所以我认为我的代码没有问题。

有人有想法吗？请帮我。

Answer 1

有趣的问题。您收到此错误的原因是您尚未指定响应数据的格式，即Accept请求标头的值。由于您未指定此值，因此存储服务将其值视为 XML，您指定的存储服务版本不支持该值。

一旦您包含此Accept标头（并在您的 中指定 PartitionKey 和 RowKey 的值$body），事情应该会正常工作。

这是我写的代码：

$accessKey = "account key"
$account_name = "account name"
$table_name = "table name"
$date = ([System.DateTime]::Now).ToString("R")
$api_version = "2016-05-31"
$table_url = "https://$account_name.table.core.windows.net/$table_name"
$data_type = "application/json"
$canonicalResource = "/$account_name/$table_name";
$stringToSign = "POST`n`n$data_type`n$date`n$canonicalResource";
$utf8enc = [System.Text.Encoding]::UTF8;
$bytes = $utf8enc.GetBytes($stringToSign)

$hmacsha = New-Object System.Security.Cryptography.HMACSHA256
$hmacsha.key = [System.Convert]::FromBase64String($accessKey)
$signature = [System.Convert]::ToBase64String($hmacsha.ComputeHash([Text.Encoding]::UTF8.GetBytes($stringToSign)))


$body = @{
PartitionKey = "1";
RowKey = [System.guid]::NewGuid().ToString();
Address="Mountain View";
Age="23";
}

$json = $body | Convertto-JSON


$table_headers = @{
"x-ms-date" = $date
"x-ms-version" = $api_version
"Authorization" = "SharedKey $account_name`:$signature"
"Content-Type" = $data_type
"Accept" = "application/json;odata=fullmetadata"
}

Invoke-RestMethod -Method POST -Uri $table_url -Headers $table_headers -Body $json -Verbose