docs: add ports to RPCs

[jcstein]

Problem

There is a split between docs (specifically, the ports used on RPCs), the way you specify a node with celestia-appd, and the way RPC providers host their nodes.

Querying RPC endpoints listed in documentation leads to inconsistent results on celestia-app releases v1.9, v1.10, and v2.0.0rc1:

$ celestia-appd query block --node https://celestia-rpc.brightlystake.com:26657

Error: post failed: Post "https://celestia-rpc.brightlystake.com:26657": dial tcp 65.108.238.167:26657: connect: operation timed out

More examples

With port:

$ celestia-appd query block --node http://rpc.celestia.nodestake.top:26657

Error: post failed: Post "http://rpc.celestia.nodestake.top:26657": dial tcp 44.212.8.160:26657: connect: connection refused

Without port:

$ celestia-appd query block --node http://rpc.celestia.nodestake.top

Error: post failed: Post "http://rpc.celestia.nodestake.top": dial tcp: address rpc.celestia.nodestake.top: missing port in address

another RPC:

$ celestia-appd query block --node http://celestia-rpc.chainode.tech:33373

Error: error in json rpc client, with http response metadata: (Status: 400 Bad Request, Protocol HTTP/1.1). error unmarshalling: invalid character '<' looking for beginning of value

$ celestia-appd query block --node http://rpc-celestia-full.avril14th.org:26657 | jq .

Error: post failed: Post "http://rpc-celestia-full.avril14th.org:26657": dial tcp 62.141.42.208:26657: connect: connection refused

$ celestia-appd query block --node http://rpc-celestia-full.avril14th.org:80 | jq .

Error: post failed: Post "https://rpc-celestia-full.avril14th.org/": http: server gave HTTP response to HTTPS client

Examples that do work

celestia-appd query block --node http://rpc-celestia.mzonder.com:26657

This works because 443 is the default https endpoint:

celestia-appd query block --node https://rpc-celestia-full.avril14th.org:443 | jq .

celestia-appd query block --node https://celestia-rpc.mesa.newmetric.xyz:443 | jq .block.header

Works on v1.10.1 but breaks on v1.9.x

$ celestia-appd query block --node --node http://rpc.celestia.pops.one:26657 | jq .block.header

on v1.9:

$ celestia-appd query block --node --node http://rpc.celestia.pops.one:26657 | jq .block.header

Error: strconv.Atoi: parsing "http://rpc.celestia.pops.one:26657": invalid syntax

Solution

• Add ports as suffix to documentation (note: these will not all be the same)
• add https as prefix to documentation
• Require future RPCs added to docs to include this in their PRs

[jcstein]

related to #1625

[jcstein]

closing in favor of #1746