- What's New
- Service Overview
- Getting Started
-
User Guide
- IAM Permissions Management
- Getting Started
- Managing DIS Streams
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Using DIS
- Checking and Configuring DNS Information
- Uploading Data by Using Agent
- Using DIS Flume Plugin to Upload and Download Data
- Using a DIS Logstash Plugin to Upload and Download Data
- Using Kafka Adapter to Upload and Download Data
- Using SparkStreaming SDK to Download Data
- Using a DIS Flink Connector to Upload and Download Data
- Managing a Dump Task
- Managing Enterprise Projects
- Notifying Events
- Monitoring
- Best Practices
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SDK Reference
- Overview
- Related Resources
- Enabling DIS
- Creating a DIS Stream
- Obtaining Authentication Information
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Getting Started with SDK
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Using the Java SDK
- Preparing the Environment
- Configuring a Sample Project
- Initializing a DIS SDK Client Instance
- Creating a Stream
- Creating a Dump Task
- Updating a Dump Task
- Deleting a Dump Task
- Querying a Dump Task List
- Querying Dump Details
- Deleting a Stream
- Querying a Stream List
- Querying Stream Details
- Downloading Streaming Data
- Uploading Streaming Data
- Obtaining the Data Cursor
- Creating an Application
- Deleting an Application
- Adding a Checkpoint
- Querying a Checkpoint
- Changing Partition Quantity
- Using Kafka Adapter to Upload and Download Data
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Using the Python SDK
- Preparing the Installation Environment
- Configuring a Sample Project
- Initializing a DIS SDK Client Instance
- Creating a Stream
- Creating a Dump Task
- Deleting a Stream
- Deleting a Dump Task
- Querying a Stream List
- Querying a Dump Task List
- Querying Stream Details
- Querying Dump Details
- Uploading Streaming Data in JSON Format
- Uploading Streaming Data in Protobuf Format
- Downloading Streaming Data
- Creating an Application
- Deleting an Application
- Viewing Application Details
- Querying an Application List
- Adding a Checkpoint
- Querying a Checkpoint
- Changing Partition Quantity
- Obtaining a Data Cursor
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Using the Java SDK
- Error Codes
- Change History
- API Reference
-
FAQs
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General Questions
- What Is DIS?
- What Is a Partition?
- What Can I Do with DIS?
- What Advantages Does DIS Have?
- Which Modules Do DIS Have?
- How Do I Create a DIS Stream?
- What Is the Difference Between Storing Data into DIS and Dumping Data Elsewhere?
- How Do I Check Software Package Integrity?
- How Do I Send and Retrieve Data Using DIS?
- What Is Data Control?
- Dump Questions
- DIS Agent Questions
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General Questions
- General Reference
Copied.
Downloading Streaming Data
Downloading Stream Data in JSON Format
Initialize a DIS SDK client instance as instructed in Initializing a DIS SDK Client Instance.
Configure the following parameters:
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streamname=" " #Name of the stream. startSeq=' 0' # Sequence number. partitionId="shardId-0000000000" |
Run getCursor_test to change the value of cursorType to AT_SEQUENCE_NUMBER.
After configuring the parameters, run the getRecords_sample.py file to call getRecords_test. The following is an example response:
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200 {'next_partition_cursor': 'eyJnZXRJdGVyYXRvclBhcmFtIjp7InN0cmVhbS1uYW1lIjoiZGlzX3Rlc3QxIiwicGFydGl0aW9uLWlkIjoic2hhcmRJZC0wMDAwMDAwMDAwIiwiY3Vyc29yLXR5cGUiOiJBVF9TRVFVRU5DRV9OVU1CRVIiLCJzdGFydGluZy1zZXF1ZW5jZS1udW1iZXIiOiI2In0sImdlbmVyYXRlVGltZXN0YW1wIjoxNTU0NzA2NTc5MzA5fQ', 'records': [{'sequence_number': '4', 'data': b'xxxxx', 'partitionKey': '0', 'timestamp': 1554705842558, 'timestamp_type': 'CreateTime'}, {'sequence_number': '5', 'data': b'xxxxx', 'partitionKey': '0', 'timestamp': 1554705842558, 'timestamp_type': 'CreateTime'}]} |
Downloading Streaming Data in Protobuf Format
Initialize a DIS SDK client instance as instructed in Initializing a DIS SDK Client Instance.
Initialize the DIS client and add the bodySerializeType parameter as follows: cli = disclient(endpoint='', ak='', sk='', projectid='', region='',bodySerializeType='protobuf')
Configure the following parameters:
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streamname=" " #Name of the stream. partitionId="shardId-0000000000" |
Run getCursor_test to change the value of cursorType to AT_SEQUENCE_NUMBER.
The test_0 method is used to obtain a cursor and the test method is used to download data. Compared to test_0, test has the bodySerializeType="protobuf" parameter, which is not provided in test_0.
After configuring the parameters, run the protobuf_getrecords_sample.py file to call getRecords_test. The following is an example response:
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200 {'next_partition_cursor': 'eyJnZXRJdGVyYXRvclBhcmFtIjp7InN0cmVhbS1uYW1lIjoiZGlzX3Rlc3QxIiwicGFydGl0aW9uLWlkIjoic2hhcmRJZC0wMDAwMDAwMDAwIiwiY3Vyc29yLXR5cGUiOiJBVF9TRVFVRU5DRV9OVU1CRVIiLCJzdGFydGluZy1zZXF1ZW5jZS1udW1iZXIiOiI2In0sImdlbmVyYXRlVGltZXN0YW1wIjoxNTU0NzA2NTc5MzA5fQ', 'records': [{'sequence_number': '4', 'data': b'xxxxx', 'partitionKey': '0', 'timestamp': 1554705842558, 'timestamp_type': 'CreateTime'}, {'sequence_number': '5', 'data': b'xxxxx', 'partitionKey': '0', 'timestamp': 1554705842558, 'timestamp_type': 'CreateTime'}]} |
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