Azure DocumentDB Rest API PowerShell删除集合401 Unathorized

Question

需要在自动化过程中删除集合。 试图在下面执行脚本。获取操作正常，但删除操作失败并显示“（401）Unathorized”错误。奇怪的是，删除集合不需要额外的标题。有人可以提示，有什么不对吗？

$accountName  = 'someaccountname'
$connectionKey = 'masterkey'
$collectionName = 'mycollection'
$databaseName = 'mydatabase'

function GetKey([System.String]$Verb = '',[System.String]$ResourceId = '',
        [System.String]$ResourceType = '',[System.String]$Date = '',[System.String]$masterKey = '') {
    $keyBytes = [System.Convert]::FromBase64String($masterKey) 
    $text = @($Verb.ToLowerInvariant() + "`n" + $ResourceType.ToLowerInvariant() + "`n" + $ResourceId + "`n" + $Date.ToLowerInvariant() + "`n" + "`n")
    $body =[Text.Encoding]::UTF8.GetBytes($text)
    $hmacsha = new-object -TypeName System.Security.Cryptography.HMACSHA256 -ArgumentList (,$keyBytes) 
    $hash = $hmacsha.ComputeHash($body)
    $signature = [System.Convert]::ToBase64String($hash)
    [System.Web.HttpUtility]::UrlEncode($('type=master&ver=1.0&sig=' + $signature))
}
 function BuildHeaders([string]$action = "get",[string]$resType, [string]$resourceId){
    $authz = GetKey -Verb $action -ResourceType $resType -ResourceId $resourceId -Date $apiDate -masterKey $connectionKey
    $headers = New-Object "System.Collections.Generic.Dictionary[[String],[String]]"
    $headers.Add("Authorization", $authz)
    $headers.Add("x-ms-version", '2015-12-16')
    $headers.Add("x-ms-date", $apiDate) 
    $headers
}
function GetUTDate() {
    $date = get-date
    $date = $date.ToUniversalTime();
    return $date.ToString("r", [System.Globalization.CultureInfo]::InvariantCulture);
}
function GetDatabases() {
    $uri = $rootUri + "/dbs"
    $hdr = BuildHeaders -resType dbs
    $response = Invoke-RestMethod -Uri $uri -Method Get -Headers $hdr
    $response.Databases
    Write-Host ("Found " + $Response.Databases.Count + " Database(s)")
}
function GetCollections([string]$dbname){
    $uri = $rootUri + "/" + $dbname + "/colls"
    $hdr = BuildHeaders -resType colls -resourceId $dbname
    $response = Invoke-RestMethod -Uri $uri -Method Get -Headers $hdr
    $response.DocumentCollections
    Write-Host ("Found " + $Response.DocumentCollections.Count + " DocumentCollection(s)")
}
function DeleteCollection([string]$dbname){
    $uri = $rootUri + "/" + $dbname + "/colls" + "/" + $collectionName
    $hdrs = BuildHeaders -action DELETE -resType colls -resourceId $collectionName
    $response = Invoke-RestMethod -Uri $uri -Method Delete -Headers $hdrs
    Write-Host "DELETE $uri"
}
$rootUri = "https://" + $accountName + ".documents.azure.com"
write-host ("Root URI is " + $rootUri)

#validate arguments
$apiDate = GetUTDate
$db = GetDatabases | where { $_.id -eq $databaseName }

if ($db -eq $null) {
    write-error "Could not find database in account"
    return
} 

$dbname = "dbs/" + $databaseName
$collection = GetCollections -dbname $dbname | where { $_.id -eq $collectionName }

if($collection -eq $null){
    write-error "Could not find collection in database"
    return
}
Write-Host
$Delete = DeleteCollection -dbname $dbname | where { $_.id -eq $collectionName } 

Answer 1

通常，未设置Authorization或x-ms-date标头（或具有无效授权令牌的Authorization标头），将返回401 unauthorized error。我使用fiddler捕获请求并检查响应，我发现Authorization和x-ms-date标头都已设置，因此似乎Authorization标头设置为无效的授权令牌。根据你的代码，我做了一些更改，这个功能可以在我身边正常工作。

function DeleteCollection([string]$dbname){
    $uri = $rootUri + "/" + $dbname + "/colls" + "/" + $collectionName
    $collectionName = $dbname + "/colls" + "/" + $collectionName
    $hdrs = BuildHeaders -action DELETE -resType colls -resourceId $collectionName
    #Write-Host "resourceId $collectionName"
    $response = Invoke-RestMethod -Uri $uri -Method Delete -Headers $hdrs
    Write-Host "resource $collectionName"
    Write-Host "DELETE $uri"
} 

$ collectionName 应为dbs/{yourdbname}/colls/{yourcollectionname}

Answer 2

如果有待处理的操作，就会发生这种情况。重试直到成功或在删除之前添加延迟。对我们来说，半秒足以确保我们再也看不到这一点。