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23/WAKU2-TOPICS: Bridging recommendations (#435) 

* Minor fix and clarifications for bridge topic conversion
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Hanno Cornelius 2021-07-21 11:49:28 +02:00 committed by GitHub
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@ -5,6 +5,7 @@ name: Waku v2 Topic Usage Recommendations
status: draft
editor: Oskar Thoren <oskar@status.im>
contributors:
- Hanno Cornelius <hanno@status.im>
---
This document outlines recommended usage of topics in Waku v2.
@ -141,12 +142,15 @@ Topics in Waku v1 correspond to Content Topics in Waku v2.
To bridge Waku v1 and Waku v2 we have a [15/WAKU-BRIDGE](/spec/15).
For mapping Waku v1 topics to Waku v2 content topics,
the following structure for the content topic is used:
the following structure for the content topic SHOULD be used:
```
/waku/v1/<4bytes-waku-v1-topic>/rlp
/waku/1/<4bytes-waku-v1-topic>/rlp
```
The `<4bytes-waku-v1-topic>` SHOULD be the lowercase hex representation of the 4-byte Waku v1 topic.
A `0x` prefix SHOULD be used.
This creates a direct mapping between the two protocols.
For example: