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17 lines
841 B
Markdown
17 lines
841 B
Markdown
<div class="cwikmeta">{
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"title":"GETDATA",
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"related":["/protocol","/protocol/p2p/inv"]
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}</div>
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# Request: Get Data (“getdata”)
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Requests information (generally previously announced via an [`inv`](/protocol/network/messages/inv) message) from a peer.
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As such, a getdata request carries the same general format as an inventory message and is used to request any items that the node was previously unaware.
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## Message Format
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| Field | Length | Format | Description |
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|--|--|--|--|
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| inventory count | variable | [variable length integer](/protocol/formats/variable-length-integer) | The number of inventory items being requested in this message. |
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| inventory items | `inventory_count` * 36 bytes | `inventory_count` [inventory items](/protocol/network/messages/inv#inventory-item-format) | The set of inventory items being requested. |
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