Merge - Python

# Simple script to showcasing how to use the Merge API in the LEADTOOLS Cloud Services. 
import requests 
import sys 
import time 
import json 
from enum import Enum 
 
servicesUrl = "https://azure.leadtools.com/api/" 
 
# The application ID. 
appId = "Replace with Application ID" 
 
# The application password. 
password = "Replace with Application Password" 
 
# Conversion output formats. 
class FormatsEnum(Enum): 
    Png = 1 
    Jpeg = 2 
    Tiff = 3 
    Pdf = 4 
    Pdfa = 5 
    PdfImage = 6 
    PdfImageOverText = 7 
    PdfaImageOverText = 8 
    Docx = 9 
    DocxFramed = 10 
    Rtf = 11 
    RtfFramed = 12 
    Txt = 13 
    TxtFramed = 14 

# Function to upload a file from a URL to the LEADTOOLS Cloud Services to be used with the Merge API command. 
def upload_url_for_merge(fileUrl): 
    baseUploadUrl = '{}UploadFile?fileurl={}&forMerge=true' 
    formattedUploadUrl = baseUploadUrl.format(servicesUrl, fileUrl) 
    request = requests.post(formattedUploadUrl, auth=(appId, password)) 
 
    if request.status_code != 200: 
        print("Error sending the upload request for file: " + fileUrl) 
        print(request.text) 
        sys.exit() 
 
    return request.text 
 
# Function to upload a file to the LEADTOOLS Cloud Services to be used with the Merge API command. 
def upload_file_for_merge(path): 
    baseUploadUrl ='{}UploadFile&forMerge=true' 
    formattedUploadUrl = baseUploadUrl.format(servicesUrl) 
    file = {'file' : open(path, 'rb')} 
    request = requests.post(formattedUploadUrl, auth=(appId, password), files = file) 
 
    if request.status_code != 200: 
        print("Error sending the upload request for file: " + path) 
        print(request.text) 
        sys.exit() 
 
    return request.text 
 
# Function to check if a file has passed the verification process. 
def check_file_verification(id): 
    baseQueryUrl = '{}Query?id={}' 
    formattedQueryUrl = baseQueryUrl.format(servicesUrl, id) 
    returnedData = "" 
    while True: 
        request = requests.post(formattedQueryUrl, auth=(appId, password)) 
        returnedData = request.json() 
        # We will check to make sure that the file has passed verification.  For the full list of possible File Statuses, refer to our documentation here: 
        # https://services.leadtools.com/documentation/api-reference/query 
        if returnedData['FileStatus'] != 123: 
            break 
        time.sleep(5) 
 
    if returnedData['FileStatus'] != 122: 
        print("The file has failed the verification process with File Status: " + returnedData['FileStatus']) 
        return False 
 
    return True 

# We will be uploading the file via a URl.  Files can also be passed by adding a PostFile to the request.  Only 1 file will be accepted per request. 
# The Merge Api requires you to upload your files with the forMerge parameter set.  A file that has been uploaded and tagged as forMerge is not compatible with other LEADTOOLS Cloud Services API functions. 
tiffFileURL = 'http://demo.leadtools.com/images/cloud_samples/ocr1-4.tif' 
firstFileId = upload_url_for_merge(tiffFileURL) 
print("First File ID: " + firstFileId) 
 
# At this point the file has been successfully uploaded to the LEADTOOLS Cloud Services and is undergoing verification.  Before we continue, we need to make sure that the uploaded file has passed verification 
if check_file_verification(firstFileId) == False: 
    sys.exit() 
 
# We will now upload the second file we would like to merge 
pdfFileUrl = 'https://demo.leadtools.com/images/pdf/leadtools.pdf' 
secondFileId = upload_url_for_merge(pdfFileUrl) 
 
print("Second File ID: " + secondFileId) 
if check_file_verification(secondFileId) == False: 
    sys.exit() 

# We now need to create the JSON body response for the Merge Api Command 
data = [] 
 
firstFileData = {} 
# pass every page in the file 
firstFileData['firstPage'] = 1 
firstFileData['lastPage'] = -1 
firstFileData['fileId'] = firstFileId 
data.append(firstFileData) 
 
secondFileData = {} 
# Make sure this file's pages are merged in a specific order. 
secondFileData['pages'] = [5,1,2,4,3] 
secondFileData['fileId'] = secondFileId 
data.append(secondFileData) 
 
# The output format of the merged files 
mergeFormat = FormatsEnum.Pdf.value 
 
baseMergeUrl = '{}Conversion/Merge?format={}' 
formattedMergeUrl = baseMergeUrl.format(servicesUrl, mergeFormat) 
request = requests.post(formattedMergeUrl, auth=(appId, password), json=data) 
if request.status_code != 200: 
        print("Error sending merge request") 
        print(request.text) 
        sys.exit() 

# At this point the merge request has been successfully received by the server, and is being processed. 
baseQueryUrl = '{}Query?id={}' 
formattedQueryUrl = baseQueryUrl.format(servicesUrl, firstFileId) 
 
# Poll the services to determine if the request has finished processing 
while True: 
    request = requests.post(formattedQueryUrl, auth=(appId, password)) 
    returnedData = request.json() 
    if returnedData['FileStatus'] != 100: 
        break 
    time.sleep(5) 
 
print("File finished processing with file status: " + 
    str(returnedData['FileStatus'])) 
 
if returnedData['FileStatus'] != 200: 
    sys.exit() 

try: 
    print("Results:") 
    returnedJson = returnedData['RequestData'] 
    for requestObject in returnedJson: 
        print("Service Type: " + requestObject['ServiceType']) 
        if requestObject['ServiceType'] == 'Conversion': 
            print("Returned URLS:") 
            for url in requestObject['urls']: 
                print(url) 
except Exception as e: 
    print("Failed to Parse JSON") 
    print(e)