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




                                                    • Desk Community Learning Series


                                                    • Digest


                                                    • Functions


                                                    • Meetups


                                                    • Kbase


                                                    • Resources


                                                    • Glossary


                                                    • Desk Marketplace


                                                    • MVP Corner


                                                    • Word of the Day


                                                    • Ask the Experts



                                                              • 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



                                                                    Zoho TeamInbox 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




                                                                                                                • Recent Topics

                                                                                                                • Facing Issues with Sites Mobile font sizes

                                                                                                                  my page renediaz.com is facing issues mobile view, when i try to lower font sizes in home page, instead of changing the size, it changes the line space
                                                                                                                • Zoho Books Payroll

                                                                                                                  How am I supposed to do payroll and pay my employees with Zoho Books? I think it's pretty strange that an accounting software doesn't have the ability to perform one of the most common functions in business; paying your employees. Am I missing something,
                                                                                                                • 60 Days Into Zoho - Tiktok Branding Startup -7 Questions?!

                                                                                                                  Wsp Everybody I co-own a TikTok Branding / Consulting Startup & have been using Zoho for the past 60 days - Am now looking to make our overall operations & processes more Efficient & Effective! Curious to know how others are using the platform & what's
                                                                                                                • Notifications in Cliq client for Linux

                                                                                                                  If I got it right, Cliq desktop client for Linux does not use the generally accepted notification method via org.freedesktop.Notification interface. For this reason, Cliq notifications do not look and behave as all other notifications. Is it possible
                                                                                                                • Report Template - How to remove page break after each record?

                                                                                                                  Hi, We have report template for a list report. It looks good at screen. But when printing, it creates a page break after each record. How to remove the it? So we can print multiple records in same page. Please look at the attached screenshots. Report Template Report Print Preview
                                                                                                                • Canvas templates can now be shared with different CRM organizations

                                                                                                                  ----------------------------------------Moderated on 14th February, 2023------------------------------------------- Dear all, This feature is now open for all users in all DCs. To learn more about importing and exporting canvas templates, read our help
                                                                                                                • Change Last Name to not required in Leads

                                                                                                                  I would like to upload 500 target companies as leads but I don't yet have contact people for them. Can you enable the option for me to turn this requirement off to need a Second Name? Moderation update (10-Jun-23): As we explore potential solutions for
                                                                                                                • creating an alias

                                                                                                                  your instructions for creating an alias are wrong. there is no add alias in my mail account. also i dont have a control panel link just a settings link how do i really make an alias
                                                                                                                • Reply to Email for SO/PO

                                                                                                                  Hello, We are new to Zoho Books and running into an issue. Our support@ email is our integration user. When our team is sending out PO/SO's we are updating the sender email, but for some reason many of our responses are coming back to our support@ email
                                                                                                                • ZOHO Payroll Canada

                                                                                                                  Any plans on the roadmap for Canada?
                                                                                                                • Zoho Books Sandbox environment

                                                                                                                  Hello. Is there a free sandbox environment for the developers using Zoho Books API? I am working on the Zoho Books add-on and currently not ready to buy a premium service - maybe later when my add-on will start to bring money. Right now I just need a
                                                                                                                • Multi-currency and Products

                                                                                                                  One of the main reasons I have gone down the Zoho route is because I need multi-currency support. However, I find that products can only be priced in the home currency, We sell to the US and UK. However, we maintain different price lists for each. There
                                                                                                                • ZOHO Writer Folders

                                                                                                                  Hi We would love to have ability to create folders on the left hand side. We would then be able create and store our documents within each folder Hope you can provide this feature soon ! dux.centra
                                                                                                                • How can Data Enrichment be automatically triggered when a new Lead is created in Zoho CRM?

                                                                                                                  Hi, I have a pipeline where a Lead is created automatically through the Zoho API and I've been trying to look for a way to automatically apply Data Enrichment on this created lead. 1) I did not find any way to do this through the Zoho API; it seems like
                                                                                                                • Escalation request: organization merge and data export (Ticket [154609577])

                                                                                                                  Hello Zoho Team, I am posting here because my support ticket has not received substantive responses through the usual channels. Summary of the issue (ongoing for three weeks): I requested assistance with a data migration and a merge of two Zoho organizations.
                                                                                                                • Different form submission results for submitter and internal users

                                                                                                                  I'm looking for suggestions on how to show an external submitter a few results while sending internal users all the results from the answers provided by the external user. The final page of our form has a section with detailed results and a section with
                                                                                                                • Help Desk Services Solution

                                                                                                                  I am here looking for Help Desk services solution for organization. I also searched this on many different website and found many solutions. We are bit confused to which one to choose. One of my friend suggest me this platform, and i am hoping i will
                                                                                                                • Formatting and slow

                                                                                                                  Creating campaigns are difficult.  I'm fairly computer literate but some of the way Zoho Campaigns formatting works is painful.  Images fail to upload or are very slow. To top it off, syncing the contacts is a pain as well as temperamental links to create Segments. At this rate I'm afraid we might need to migrate back to Mailchimp.
                                                                                                                • Boost your Zoho Desk's performance by archiving tickets!

                                                                                                                  The longer your help desk operations are, the more likely it is to accumulate tickets that are no longer relevant. For example, ticket records from a year ago are typically less relevant than currently open tickets. Such old tickets may eventually lead
                                                                                                                • Paste emails to create segment

                                                                                                                  We are moving over from Mailchimp to ZOHO. However Mailchimp allows me to create a segment by pasting in emails from excel (or importing a .csv) can I do the same in Mailchimp?
                                                                                                                • Getting the Record ID of a form once it is submitted - so that form can be edited later

                                                                                                                  In Zoho Forms, where can I access the record ID of a form once the form is submitted? - Record ID is not available in webhook payloads - It is not available to form fields, including in formulas - It is not available as a parameter in a thankyou page
                                                                                                                • Auto-Generate Line Numbers in Item Table Using HTML & CSS Counters (Zoho Books & Zoho Inventory Custom Templates)

                                                                                                                  <div> <style> /* Start counter from 0 inside tbody */ tbody#lineitem { counter-reset: rowNumber; } /* Increment counter for each row */ tbody#lineitem tr { counter-increment: rowNumber; } /* Show counter value in first column */ tbody#lineitem tr td:first-child::before
                                                                                                                • Possible to define default font and size in Zoho Campaigns?

                                                                                                                  Is it possible to define a default font (font, size and colour) for the text, H1 and H2 in Zoho Campaigns? For example: In a campaign, I add a text block, and the text is automatically century gothic, size 11, grey (6f6f6e) by default? Thank you!
                                                                                                                • Zoho Sites - General Feedback

                                                                                                                  Hi Everyone-- Quick question for discussion: is it me or is working with Zoho Sites like entering the Twilight Zone? I've built many sites over the years, but this platform seems impossible. I've spent an entire day and a half trying to get a simple one-color
                                                                                                                • Zoho People & Zoho CRM Calendar

                                                                                                                  Hi, Does anyone know if it is possible to link Zoho People and the calendar in CRM? I would like when holidays are approved they automatically appear in the calendar on CRM. Thanks 
                                                                                                                • File Upload field not showing in workflow

                                                                                                                  Hi, I have added a field on Zoho CRM. I want to use it in a workflow where that particular field is updated based on another field, however it is not showing up in the field list to select it in the workflow. Why is this please?
                                                                                                                • You cannot send this email campaign as it doesn't have any eligible contacts in the selected mailing list. You can try adding contacts or choose other mailing lists.

                                                                                                                  please help
                                                                                                                • Strengthening the capabilities of CommandCenter in Zoho CRM Plus

                                                                                                                  When you look at the prospect-to-customer journey in most businesses 10 to 15 years ago, it was relatively straightforward. Many of us remember walking into a store, sharing our requirements with a sales associate, reviewing a few options, and making
                                                                                                                • World date & time format

                                                                                                                  Hello, Is there a timeline to get the worldwide used date and time format ? I mean not the american one... I mean day month year, and 24 hours clock. Regards
                                                                                                                • Announcing Kiosk 1.1 - Customize screen titles, configure new fields & actions, use values from your Kiosk to update fields, and more.

                                                                                                                  Hello all We are back again with more enhancements to Kiosk. So what's new? Enhancements made to the Components Add titles for your Kiosk screens and adjust its width to suit your viewing preferences. Three new fields can be added to your screen: Percentage,
                                                                                                                • Any recommendations for Australian Telephony Integration providers?

                                                                                                                  HI,  I am looking for some advice on phone providers as we are looking to upgrade our phone system, does anybody have experience with any of the Australian providers that integrate with CRM Telephony? So far we are looking at RingCentral and Amazon Connect, and would love to hear feedback on any of the other providers you might have tried.  Thank you
                                                                                                                • Zoho Campaigns Workspaces

                                                                                                                  Hi, I’m currently working on a Zoho CRM + Zoho Campaigns setup for a franchisee-based organization, where each franchise must only see and use its own contacts. At the moment, franchisees cannot properly access their contact lists in Zoho Campaigns unless
                                                                                                                • Limited System because of Limited Number of Fields for Car Dealership

                                                                                                                  Dear Zoho Support, we want to have all the information about a car inside of a car record. We want to have Zoho CRM as our single source of truth for our data, but the limited number of fields are not allowing that. The data consist of: technical data
                                                                                                                • Newsletter in multiple languages

                                                                                                                  Hi We are planning on starting to use Zoho Campaigns for our newsletters. Since we send our newsletters in three languages, I would need the "unsubscribe page" and other pages related to the NL (Thank you page and so on) to be available in different languages
                                                                                                                • Fixed assets in Zoho One?

                                                                                                                  Hi, We use Zoho Books and have the fixed asset option in it. I started a trial for Zoho One and I do not see that as an option. Is the books that is part of zoho one equivalent to Zoho Books Elite subscription or is it a lesser version? Thanks, Matt
                                                                                                                • Set Default Status of Assembly to "Assembled" When Entered in UI

                                                                                                                  I've just discovered the new "confirmed" status of Assemblies within Inventory. While I understand the intent of this (allowing for manufacturing planning and raw material stock allocation), it was initially confusing to me when manually entering some
                                                                                                                • I need to Record Vatable amount and non vatable amount separately in zoho books in a single line

                                                                                                                  I need to Record Vatable amount and non vatable amount separately in zoho books in a single line give me the customisation option and in invoice copy to customer the total amount should be inclusive 5%vat and no need to show the vatable and non vatable
                                                                                                                • Sort Legend & stacked bar chart by value

                                                                                                                  I'd love to see an option added to sort the legend of graphs by the value that is being represented. This way the items with the largest value in the graph are displayed top down in the legend. For example, let's say I have a large sales team and I create
                                                                                                                • Scanned Doc - selecting Item overwrites Rate

                                                                                                                  I have a Vendor Invoice which was uploaded to Documents. I select Add To > New Bill. The OCR is actually quite good, but it is reading an Item Description instead of an Item Number. I remove the description and select the correct Item Number... and it
                                                                                                                • Timesheet invalid data error

                                                                                                                  Getting the "Invalid Date" error when trying to add a time sheet to an appointment in a work order. I initially though the work order was corrupt or something so I deleted the work order and recreated it. I added the first time sheet to the AP and saved
                                                                                                                • Next Page