Kaizen #44 - Handling Attachments API in Java and Java SDK (Part 1/2)

Kaizen #44 - Handling Attachments API in Java and Java SDK (Part 1/2)

Hello everyone!

Welcome back to yet another post in the Kaizen series.
This week, we will discuss about the attachments API in Java and Java SDK.

1. Introduction to Attachments API

Attachments in Zoho CRM are an important aspect of any record as they add additional information in the form of documents such as Marketing Collateral, Sales Quotes/Orders/Invoices, SLA and etc to the existing record. A record can contain multiple attachments. However, the attachments hold a maximum limit per record. The attachment limit per record is 100Mb. It can be either a single file or multiple files. In the case of multiple files, the total file size of the multiple files must not exceed 100Mb. The allowable limit for an image is 10Mb, and the resolution is 10megapixel. 

Let's discuss some important details concerning the attachments API. 
i. While uploading an attachment or an image through a curl request, the image must be included in the request with the content type as multipart/form-data

ii. The oauth scopes required for attachment API : 
ZohoCRM.modules.all 
(or) 
ZohoCRM.modules.{module_name}.{operation_type}
(and) 
ZohoCRM.modules.attachments.all

iii. The possible oauth scope module_names are: 
leads, accounts, contacts, deals, campaigns, tasks, cases, events, calls, solutions, products, vendors, pricebooks, quotes, salesorders, purchaseorders, invoices, custom, and notes.

2. Operations in the Attachments API

The attachments API in Zoho CRM allows a user to get a list of attachments, upload or download a file and delete them as well. Our focus for this week will be on executing the following operations using Java's HTTP client and CRM's Java SDK.
a. List attachments
b. Upload attachments

a. List Attachments

To get the list of attachments of a specific record. 

Request method:  GET
Request URL:  
{{api-domain}}/crm/v2/{module_api_name}/{record_id}/attachments

Sample URL:
{{api-domain}}/crm/v2/Leads/3719520000000659047/attachments

Java SDK Code -
In Java SDK, we employ the getAllAttachmentsDetails() method to fetch all the necessary details. We will need the record_id for whom the attachment details are fetched. Here, the record_id provided is 3719520000000659047. After fetching the details, we iterate over the response and just print the necessary details. 
public void getAllAttachmentsDetails() throws Exception {
              ZCRMRecord record=ZCRMRecord.getInstance("Leads",3719520000000659047L); 
 int page=1;
              int per_page=200;
 BulkAPIResponse responseIn=record.getAllAttachmentsDetails(page, per_page,null);
        List <ZCRMAttachment> attchments=(List<ZCRMAttachment>)responseIn.getData(); 
        if(attchments!=null) 
        {
            for(ZCRMAttachment attchmentIns : attchments)
            {
                System.out.println(attchmentIns.getId()); 
                System.out.println(attchmentIns.getFileName()); 
                System.out.println(attchmentIns.getFileType());
                System.out.println(attchmentIns.getSize()); 
                ZCRMRecord parentRecord1=attchmentIns.getParentRecord();
                System.out.println(parentRecord1.getEntityId());
                ZCRMUser createdBy1=attchmentIns.getCreatedBy();
                System.out.println(createdBy1.getId()); 
                System.out.println(createdBy1.getFullName());
                ZCRMUser modifiedBy1=attchmentIns.getModifiedBy();
                System.out.println(modifiedBy1.getId()); 
                System.out.println(modifiedBy1.getFullName());
                ZCRMUser owner1=attchmentIns.getOwner();
                System.out.println(owner1.getId()); 
                System.out.println(owner1.getFullName()); 
                System.out.println(attchmentIns.getCreatedTime()); 
                System.out.println(attchmentIns.getModifiedTime()); 
            }
        }
}


Java Code 
In the absence of Java SDK, we make a GET request to the mentioned URL and display the response.
public void getAllAttachmentDetails() throws Exception
 {
  CloseableHttpClient httpclient = HttpClients.createDefault();
     HttpGet httpget = new HttpGet("{{api-domain}}/crm/v2/Leads/3719520000000659047/attachments");
     httpget.addHeader("Authorization", "Zoho-oauthtoken 1000.9XXX.6XXX");
     System.out.println("Request Type: "+httpget.getMethod());
     HttpResponse httpresponse = httpclient.execute(httpget);
     Scanner sc = new Scanner(httpresponse.getEntity().getContent());
     System.out.println(httpresponse.getStatusLine());
     while(sc.hasNext()) {
          System.out.println(sc.nextLine());
     }
 }


Sample Response
{
    "data": [
        {
            "Owner": {
                "name": "Patricia Boyle",
                "id": "3719520000000191015",
                "email": "patricia.boyle@zohocorp.com"
            },
            "Modified_Time": "2020-08-12T10:28:07+05:30",
            "File_Name": "testimg.jpg",
            "Created_Time": "2020-08-12T10:28:07+05:30",
            "Size": "120335",
            "Parent_Id": {
                "name": "Johnson Charles",
                "id": "3719520000000659047"
            },
            "$editable": true,
            "$file_id": "8urshba63343dcc7b41418d74eeca1d4c323e",
            "$type": "Attachment",
            "$se_module": "Leads",
            "Modified_By": {
                "name": "Patricia Boyle",
                "id": "3719520000000191015",
                "email": "patricia.boyle@zohocorp.com"
            },
            "$state": "save",
            "id": "3719520000000981001",
            "Created_By": {
                "name": "Patricia Boyle",
                "id": "3719520000000191015",
                "email": "patricia.boyle@zohocorp.com"
            },
            "$link_url": null
        }
    ],
    "info": {
        "per_page": 200,
        "count": 2,
        "page": 1,
        "more_records": false
    }
}

b. Upload Attachments

To attach a file to a record.

Request method :  POST
Request URL:
{{api-domain}}/crm/v2/{module_api_name}/{record_id}/attachments

Sample URL: 
{{api-domain}}/crm/v2/Leads/3719520000000659047/attachments

Java SDK Code
For uploadAttachment(), we need the record_id and the file to upload as a pre-requisite. We employ the uploadAttachment() to upload our file to the record.
public void uploadAttachment() throws Exception{
  ZCRMRecord record=ZCRMRecord.getInstance("Leads",3719520000000659047L); 
  APIResponse responseIn=record.uploadAttachment("/Users/srivathsan-8829/Downloads/record.txt"); 
  System.out.println( "Status:"+ responseIn.getMessage()); 
        System.out.println( "Message:"+ responseIn.getStatus()); 
        System.out.println("http code"+ responseIn.getStatusCode()); 
        System.out.println( " Code:"+responseIn.getResponseJSON().toString());
 }


Java Code 

Uploading an attachment to a record in Java without Java SDK can be a tedious task. As shown below, the request needs to be multipart request. 

public void uploadAttachments() throws Exception
 {
    CloseableHttpClient httpclient = HttpClients.createDefault();
       File file = new File("/Users/srivathsan-8829/Downloads/record.txt");
       FileBody filebody = new FileBody(file, ContentType.DEFAULT_BINARY);
       MultipartEntityBuilder entitybuilder = MultipartEntityBuilder.create();
       entitybuilder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);
       HttpEntity mutiPartHttpEntity = entitybuilder.build();
       RequestBuilder reqbuilder = RequestBuilder.post("{{api-domain}}/crm/v2/Leads/3719520000000659047/attachments");
       reqbuilder.setEntity(mutiPartHttpEntity);
       reqbuilder.addHeader("Authorization", "Zoho-oauthtoken 1000.9XXX.6XXX");
       HttpUriRequest multipartRequest = reqbuilder.build();
       HttpResponse httpresponse = httpclient.execute(multipartRequest);
       System.out.println(EntityUtils.toString(httpresponse.getEntity()));
       System.out.println(httpresponse.getStatusLine());
 }

Sample Response
{
    "data": [
        {
            "code": "SUCCESS",
            "details": {
                "Modified_Time": "2020-08-12T10:28:07+05:30",
                "Modified_By": {
                    "name": "Patricia Boyle",
                    "id": "3719520000000191015"
                },
                "Created_Time": "2020-08-12T10:28:07+05:30",
                "id": "3719520000000981001",
                "Created_By": {
                    "name": "Patricia Boyle",
                    "id": "3719520000000191015"
                }
            },
            "message": "attachment uploaded successfully",
            "status": "success"
        }
    ]
}

Note :-
FILE_SIZE_MORE_THAN_ALLOWED_SIZE - This error is specific to the attachments API which is returned when you try to upload an attachment/photo exceeding the allowed size.

We hope you found this post useful. In our next kaizen post, we will discuss how to download and delete an attachment via Java HTTP Client and Java SDK. Let us know your thoughts in the comment section or reach us out at support@zohocrm.com.

Cheers!







    Access your files securely from anywhere

        All-in-one knowledge management and training platform for your employees and customers.







                              Zoho Developer Community



                                  Bootcamp
                                  Community
                                  Pricing
                                  Webinars
                                  What's New
                                  Integrations
                                  Contact Support
                                  Contact Sales
                                    Zoho Survey Resources
                                      Features
                                      Survey Templates
                                      Integrations
                                      Community
                                      iOS Mobile Surveys
                                      Pricing
                                      Android Mobile Surveys
                                      Insurvey Blogs
                                      Insight Blogs
                                      Tips & Tricks





                                                  Latest Feature Updates

                                                    • Desk Community Learning Series


                                                    • Digest


                                                    • Functions


                                                    • Meetups


                                                    • Kbase


                                                    • Resources


                                                    • Glossary


                                                    • Desk Marketplace


                                                    • MVP Corner


                                                    • Word of the Day


                                                    • Ask the Experts




                                                        Zoho SalesIQ Resources

                                                              • Sticky Posts

                                                              • Kaizen #198: Using Client Script for Custom Validation in Blueprint

                                                                Nearing 200th Kaizen Post – 1 More to the Big Two-Oh-Oh! Do you have any questions, suggestions, or topics you would like us to cover in future posts? Your insights and suggestions help us shape future content and make this series better for everyone.

                                                              • Kaizen #226: Using ZRC in Client Script

                                                                Hello everyone! Welcome to another week of Kaizen. In today's post, lets see what is ZRC (Zoho Request Client) and how we can use ZRC methods in Client Script to get inputs from a Salesperson and update the Lead status with a single button click. In this

                                                              • Kaizen #222 - Client Script Support for Notes Related List

                                                                Hello everyone! Welcome to another week of Kaizen. The final Kaizen post of the year 2025 is here! With the new Client Script support for the Notes Related List, you can validate, enrich, and manage notes across modules. In this post, we’ll explore how

                                                              • Kaizen #217 - Actions APIs : Tasks

                                                                Welcome to another week of Kaizen! In last week's post we discussed Email Notifications APIs which act as the link between your Workflow automations and you. We have discussed how Zylker Cloud Services uses Email Notifications API in their custom dashboard.

                                                              • Kaizen #216 - Actions APIs : Email Notifications

                                                                Welcome to another week of Kaizen! For the last three weeks, we have been discussing Zylker's workflows. We successfully updated a dormant workflow, built a new one from the ground up and more. But our work is not finished—these automated processes are


                                                              Manage your brands on social media
                                                              Access Zoho Social

                                                                Zoho Pagesense Resources


                                                                    Zoho TeamInbox Resources

                                                                      Zoho DataPrep Resources


                                                                        Zoho CRM Plus Resources

                                                                          Zoho Books Resources


                                                                            Zoho Subscriptions Resources

                                                                              Zoho Projects Resources


                                                                                Zoho Sprints Resources


                                                                                  Qntrl Resources


                                                                                    Zoho Creator Resources



                                                                                        Zoho CRM Resources

                                                                                        • CRM Community Learning Series

                                                                                          CRM Community Learning Series


                                                                                        • Kaizen

                                                                                          Kaizen

                                                                                        • Functions

                                                                                          Functions

                                                                                        • Meetups

                                                                                          Meetups

                                                                                        • Kbase

                                                                                          Kbase

                                                                                        • Resources

                                                                                          Resources

                                                                                        • Digest

                                                                                          Digest

                                                                                        • CRM Marketplace

                                                                                          CRM Marketplace

                                                                                        • MVP Corner

                                                                                          MVP Corner









                                                                                            Design. Discuss. Deliver.

                                                                                            Create visually engaging stories with Zoho Show.

                                                                                            Get Started Now


                                                                                              Zoho Show Resources

                                                                                                Zoho Writer

                                                                                                Get Started. Write Away!

                                                                                                Writer is a powerful online word processor, designed for collaborative work.

                                                                                                  Zoho CRM コンテンツ




                                                                                                    Nederlandse Hulpbronnen


                                                                                                        ご検討中の方