Azure 表存储 SAS 令牌分页

Question

我正在使用 Powershell 从 Azure 存储表读取数据。我想直接使用API而不需要任何模块。
我使用 SAS 令牌进行身份验证。

$SASToken = '?sv=2022-11-02&ss=bfqt&srt=s&sp=rwdlacupiytfx&se=2023-12-27T09:28:48Z&st=2023-12-27T01:28:48Z&spr=https&sig=2gqxxxxxx'
$GMTTime = (Get-Date).ToUniversalTime().toString('R')
$headers = @{
    'x-ms-date' = $GMTTime;
    Accept      = 'application/json;odata=nometadata'
}
$url = "https://$StorageAccountName.table.core.windows.net/${TableName}${SASToken}"

$response = Invoke-WebRequest -Uri $url -Headers $headers -Method Get -ErrorAction Stop
$NextRowKey = $response.Headers.'x-ms-continuation-NextRowKey'
$NextPartitionKey = $response.Headers.'x-ms-continuation-NextPartitionKey'

第一个调用按预期工作。
我正在阅读 文档，但我仍然不知道如何构建下一页（1000 个条目）的 URL。
我试过了

$url = "http://$StorageAccountName.table.core.windows.net/${TableName}${SASToken}?NextPartitionKey=$NextPartitionKey&NextRowKey=$NextRowKey"
Invoke-WebRequest -Uri $url -Headers $headers -Method Get -ErrorAction Stop

Invoke-WebRequest:                                                                                                      

  AuthenticationFailed
  Server failed to authenticate the request. Make sure the value of the Authorization header is formed correctly including the signature.

没有一个变量为空，并且所有变量都有正确的值。

Answer 1

Invoke-WebRequest：AuthenticationFailed 服务器无法验证请求。确保授权标头的值格式正确，包括签名。

当您传递了错误的参数或无效的 sas 令牌时，就会发生上述错误，我也在您的

url

中看到您在脚本中传递了两次

?

，这使您收到身份验证错误。

这是完整的脚本，它在我的环境中有效。

脚本：

$StorageAccountName="xxxx"
$TableName="xxx"
$SASToken = '?sv=2022-11-02&ss=bfqt&srt=co&sp=rwdlacupiytfx&se=2023-12-27T13:35:21Z&st=2023-12-27T05:35:21Z&spr=https&sig=xxxxx'
$GMTTime = (Get-Date).ToUniversalTime().toString('R')
$headers = @{
    'x-ms-date' = $GMTTime;
    Accept      = 'application/json;odata=nometadata'
}
$url = "https://$StorageAccountName.table.core.windows.net/${TableName}${SASToken}"

$response = Invoke-WebRequest -Uri $url -Headers $headers -Method Get -ErrorAction Stop
$NextRowKey = $response.Headers.'x-ms-continuation-NextRowKey'
$NextPartitionKey = $response.Headers.'x-ms-continuation-NextPartitionKey'

while ($NextRowKey -ne $null -and $NextPartitionKey -ne $null) {
    $url = "https://$StorageAccountName.table.core.windows.net/${TableName}${SASToken}&NextPartitionKey=$NextPartitionKey&NextRowKey=$NextRowKey"
    $response = Invoke-WebRequest -Uri $url -Headers $headers -Method Get -ErrorAction Stop
    $NextRowKey = $response.Headers.'x-ms-continuation-NextRowKey'
    $NextPartitionKey = $response.Headers.'x-ms-continuation-NextPartitionKey'
    $content = $response.Content | ConvertFrom-Json
    foreach ($entity in $content.value) {
        Write-Output "PartitionKey: $($entity.PartitionKey), RowKey: $($entity.RowKey)"
    }
}

输出：

PartitionKey: Partition1, RowKey: Row1899
PartitionKey: Partition1, RowKey: Row19
PartitionKey: Partition1, RowKey: Row190
PartitionKey: Partition1, RowKey: Row1900
PartitionKey: Partition1, RowKey: Row1901
PartitionKey: Partition1, RowKey: Row1902
PartitionKey: Partition1, RowKey: Row1903
PartitionKey: Partition1, RowKey: Row1904
PartitionKey: Partition1, RowKey: Row1905
PartitionKey: Partition1, RowKey: Row1906
PartitionKey: Partition1, RowKey: Row1907
PartitionKey: Partition1, RowKey: Row1908

参考：

查询超时和分页（REST API）- Azure 存储 |微软学习