REST /txs "tx.minheight" parameter does nothing, invalidates the query

[gsora]

Summary of Bug

The REST endpoint /txs accepts a given variety of parameters explained here.

The tx.minheight parameter should be used to filter transaction happened after a given block height.

Including said parameter in a REST call result in an empty result:

{"total_count":"0","count":"0","page_number":"1","page_total":"0","limit":"30","txs":[]}

Version

Cosmos-SDK v0.38.1

Steps to Reproduce

curl -X GET "https://api.cosmos.network/txs?message.action=send&message.sender=cosmos1tn755fln0uh5wugk4dths2m6dxjrdn93v8lq4t&tx.minheight=2" -H  "accept: application/json"

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For Admin Use

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• Appropriate labels applied
• Appropriate contributors tagged
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[alexanderbez]

/cc @gagbo

[gsora]

Directly querying Tendermint's /tx_search endpoint doesn't yield any meaningful result, except some sort of unmarshaling error:

curl -X GET "http://localhost:26657/tx_search?query=tx.height%3E%3D1&prove=false&page=1&per_page=100&order_by=desc" -H  "accept: application/json"

Result:

{
  "jsonrpc": "2.0",
  "id": -1,
  "error": {
    "code": -32602,
    "message": "Invalid params",
    "data": "error converting http params to arguments: invalid character 'x' in literal true (expecting 'r')"
  }
}

curl -X GET "http://localhost:26657/tx_search?query=tx.height%3D1&prove=false&page=1&per_page=100&order_by=desc" -H  "accept: application/json"

Result:

{
  "jsonrpc": "2.0",
  "id": -1,
  "error": {
    "code": -32602,
    "message": "Invalid params",
    "data": "error converting http params to arguments: invalid character 'x' in literal true (expecting 'r')"
  }
}

[gsora]

This is actually implemented in #5648, but https://cosmos.network/rpc/#/ already lists it, so I thought it was be available in 0.38.1.

Turns out I was wrong.

[gagbo]

I had the same weird surprise. The swagger lists it but it's not actually in the code.

For reference, 0.37.8 has the backport, No idea about 0.38 versions though