ByteScout Cloud API Server – Barcode Reader API – PowerShell – Read Barcode From Uploaded File

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ByteScout Cloud API Server – Barcode Reader API – PowerShell – Read Barcode From Uploaded File

printable version:
ByteScout-Cloud-API-Server-PowerShell-Read-Barcode-From-Uploaded-File.pdf

How to read barcode from uploaded file for barcode reader API in PowerShell and ByteScout Cloud API Server

How to read barcode from uploaded file for barcode reader API in PowerShell: Step By Step Instructions

These simple tutorials explain the code material for beginners and advanced programmers who are using PowerShell. Barcode reader API in PowerShell can be applied with ByteScout Cloud API Server. ByteScout Cloud API Server is the ready to use Web API Server that can be deployed in less than 30 minutes into your own in-house server or into private cloud server. Can store data on in-house local server based storage or in Amazon AWS S3 bucket. Processing data solely on the server using buil-in ByteScout powered engine, no cloud services are used to process your data!.

If you want to speed up the application’s code writing then PowerShell code samples for PowerShell developers help to implement using ByteScout Cloud API Server. This PowerShell sample code can be used by copying and pasting into your project. Once done,just compile your project and click Run. Writing PowerShell application mostly includes various stages of the software development so even if the functionality works please check it with your data and the production environment.

ByteScout Cloud API Server – free trial version is available on our website. Also, there are other code samples to help you with your PowerShell application included into trial version.

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ReadBarcodeFromUploadedFile.ps1

      # Please NOTE: In this sample we're assuming Cloud Api Server is hosted at "https://localhost". 
# If it's not then please replace this with with your hosting url.

# Source file name
$SourceFile = ".\sample.pdf"
# Comma-separated list of barcode types to search. 
$BarcodeTypes = "Code128,Code39,Interleaved2of5,EAN13"
# Comma-separated list of page indices (or ranges) to process. Leave empty for all pages. Example: '0,2-5,7-'.
$Pages = ""

# 1. RETRIEVE THE PRESIGNED URL TO UPLOAD THE FILE.
# * If you already have a direct file URL, skip to the step 3.

# Prepare URL for `Get Presigned URL` API call
$query = "https://localhost/file/upload/get-presigned-url?contenttype=application/octet-stream&name=" + `
    [System.IO.Path]::GetFileName($SourceFile)
$query = [System.Uri]::EscapeUriString($query)

try {
    # Execute request
    $jsonResponse = Invoke-RestMethod -Method Get  -Uri $query
    
    if ($jsonResponse.error -eq $false) {
        # Get URL to use for the file upload
        $uploadUrl = $jsonResponse.presignedUrl
        # Get URL of uploaded file to use with later API calls
        $uploadedFileUrl = $jsonResponse.url

        # 2. UPLOAD THE FILE TO CLOUD.

        $r = Invoke-WebRequest -Method Put -Headers @{ "content-type" = "application/octet-stream" } -InFile $SourceFile -Uri $uploadUrl
        
        if ($r.StatusCode -eq 200) {
            
            # 3. READ BARCODES FROM UPLOADED FILE

            # Prepare URL for `Barcode Reader` API call
            $query = "https://localhost/barcode/read/from/url?types=$($BarcodeTypes)&pages=$($Pages)&url=$($uploadedFileUrl)"
            $query = [System.Uri]::EscapeUriString($query)

            # Execute request
            $jsonResponse = Invoke-RestMethod -Method Get  -Uri $query

            if ($jsonResponse.error -eq $false) {
                # Display found barcodes in console
                foreach ($barcode in $jsonResponse.barcodes)
                {
                    Write-Host "Found barcode:"
                    Write-Host "  Type: $($barcode.TypeName)"
                    Write-Host "  Value: $($barcode.Value)"
                    Write-Host "  Document Page Index: $($barcode.Page)"
                    Write-Host "  Rectangle: $($barcode.Rect)"
                    Write-Host "  Confidence: $($barcode.Confidence)"
                    Write-Host ""
                }
            }
            else {
                # Display service reported error
                Write-Host $jsonResponse.message
            }
        }
        else {
            # Display request error status
            Write-Host $r.StatusCode + " " + $r.StatusDescription
        }
    }
    else {
        # Display service reported error
        Write-Host $jsonResponse.message
    }
}
catch {
    # Display request error
    Write-Host $_.Exception
}

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run.bat

      @echo off

powershell -NoProfile -ExecutionPolicy Bypass -Command "& .\ReadBarcodeFromUploadedFile.ps1"
echo Script finished with errorlevel=%errorlevel%

pause