Force.com REST API Developer Guide

Introducing Force.com REST API
Quick Start
Examples
Getting Information About My Organization
Working with Object Metadata
Working with Records
Create a Record
Update a Record
Delete a Record
Get Field Values from a Standard Object Record
Get Field Values from an External Object Record by Using the Salesforce ID
Get Field Values from an External Object Record by Using the External ID Standard Field
Retrieve a Record Using an External ID
Insert or Update (Upsert) a Record Using an External ID
Traverse Relationships with Friendly URLs
Get Attachment Content from a Record
Insert or Update Blob Data
Get a List of Deleted Records Within a Given Timeframe
Get a List of Updated Records Within a Given Timeframe
Working with Searches and Queries
Working with Recently Viewed Information
Managing User Passwords
Working with Approval Processes and Process Rules
Using Event Monitoring
Using Composite Resources
Reference
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Get Attachment Content from a Record

Use the SObject Blob Retrieve resource to retrieve blob data for a given record.

The following example retrieves the blob data for an Attachment record. The Attachment can be associated with a Case, Campaign, or other object that allows attachments.

Example for retrieving blob body for an Attachment record
1curl https://yourInstance.salesforce.com/services/data/v20.0/sobjects/Attachment/001D000000INjVe/body -H "Authorization: Bearer token"
Example request body
none required
Example response body
Attachment body content is returned in binary form. Note that the response content type will not be JSON or XML since the returned data is binary.

The following example retrieves the blob data for a Document record.

Example for retrieving blob body for a Document record
1curl https://yourInstance.salesforce.com/services/data/v20.0/sobjects/Document/015D0000000NdJOIA0/body -H "Authorization: Bearer token"
Example request body
none required
Example response body
Document body content is returned in binary form. Note that the response content type will not be JSON or XML since the returned data is binary.