Tracking: Block Explorer support

[mpguerra]

Motivation

This is the tracking issue to outline the work necessary in order for zebra to support block explorers.

Zcash Block explorers

• Blockchair
• Tokenview
• Bitquery
• Blockexplorer.one
• Zcash Block Explorer (https://github.com/nighthawk-apps/zcash-explorer)

We're initially implementing support for https://github.com/nighthawk-apps/zcash-explorer.

RPC Methods

Using the Zcash Block Explorer from above as an example, these are the following RPC methods that would need to be implemented in zebra:

• Implement getblockhashes RPC method #8436
• Implement getmempoolinfo RPC method #8437
• Implement getnetworksolps RPC method #8438
• Implement getaddressdeltas RPC method #8440
• Implement z_listunifiedreceivers RPC method #8441
• Implement getblockheader RPC method #8442
• Implement z_validatepaymentdisclosure RPC method #8443
• Implement validateaddress RPC method #8444
• Implement z_validateaddress RPC method #8445

The following RPC methods should also be updated to support all of the required query and result fields:

• Update getblock RPC method #8446
• Update getrawmempool RPC method #8447
• Update getinfo RPC method #8448
• Update getblockchaininfo RPC method #8449
• Update getpeerinfo RPC method #8450
• Update getrawtransaction RPC method #8451
• Update getaddressbalance RPC method for block explorer usage #8452

Other

• Install and run Zcash Block Explorer locally for testing purposes #8456
• Add an error field to RPC responses #8672

[oxarbitrage]

Hey @mpguerra , thank you for putting all this together. I think we need a ticket to install (fork if changes are needed) locally the https://github.com/nighthawk-apps/zcash-explorer

[mpguerra]

Hey @mpguerra , thank you for putting all this together. I think we need a ticket to install (fork if changes are needed) locally the https://github.com/nighthawk-apps/zcash-explorer

This is now #8456

[upbqdn]

@mpguerra could you add the resources you used to compose the lists of the RPCs?

[mpguerra]

@mpguerra could you add the resources you used to compose the lists of the RPCs?

https://gist.github.com/oxarbitrage/a56f7e6b9b198ba70150a3afb2ffc949

[mpguerra]

It may be that we want to prioritise some RPC methods first as there may be some features from the Tools section that we may not want to support from the start:

[upbqdn]

@conradoplg I noticed you tried running https://github.com/nighthawk-apps/zcash-explorer locally. It should use this tool https://github.com/nighthawk-apps/zcashex as a middleware between the explorer and full node. It looks like it should be sufficient to implement the RPCs used in this file https://github.com/nighthawk-apps/zcashex/blob/main/lib/zcashex.ex to have a full support of the block explorer.

[upbqdn]

(So I think you don't need to list the RPCs manually.)

[upbqdn]

I extracted the RPCs from https://github.com/nighthawk-apps/zcashex/blob/main/lib/zcashex.ex:

• getblockchaininfo
• getmempoolinfo
• gettxoutsetinfo
• getinfo
• getmemoryinfo
• getmininginfo
• getnetworkinfo
• getpeerinfo
• getbestblockhash
• getblockcount
• getdifficulty
• getblock
• getblocksubsidy
• getnetworksolps
• getblockhashes
• getrawtransaction
• getaddressbalance
• getaddressdeltas
• getaddresstxids
• getblockheader
• getrawmempool
• sendrawtransaction
• decoderawtransaction
• generate
• validateaddress
• z_validatepaymentdisclosure
• z_validateaddress
• z_listunifiedreceivers

Some of the RPCs are already listed in the PR description, but these are missing:

• gettxoutsetinfo
• getmemoryinfo
• getmininginfo
• getnetworkinfo
• getbestblockhash
• getblockcount
• getdifficulty
• getblocksubsidy
• getaddresstxids
• sendrawtransaction
• decoderawtransaction
• generate