Delegator Guide (CLI) sending offline transactions

[patrickwieth]

It was not possible for me sending an offline tx following the advice from the Delegator Guide (CLI) (https://github.com/cosmos/cosmos-sdk/blob/develop/docs/gaia/delegator-guide-cli.md#signing-transactions-from-an-offline-computer). It was however possible to get it running with the help of @sunnya97 , so I will post here, what was missing.

First I ran into the problem that is already documented here: #3889 and solved it by creating a local pubkey as mentioned in the thread, should either be fixed in gaiacli or should be documented in the guide

gaiacli tx sign unsignedTx.json --from > signedTx.json

This command is mentioned in the guide, but what made it work was:

gaiacli tx sign unsignedTX.json --from --offline --account-number 1234 --sequence 0 --chain-id cosmoshub-1 >
signedTx.json

so --offline is missing, --account-number must be first looked up what account-number someone has, --sequence must be looked up and --chain-id is necessary as well.

Last but not least, --gas auto from this command mentioned in the guide:

gaiacli tx staking delegate --from --gas auto --gas-prices --generate-only > unsignedTX.json

repeatedly gave me too low gasWanted and thus the tx was not finally computed, so I had to increase it manually.

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[fedekunze]

cc: @gamarin2

[gamarin2]

Thank you for the feedback!

#3889 is a separate issue and in the process of being fixed.

For the rest, I will open a PR!

[jackzampolin]

We should also add a section on sending offline tx distr withdraw* commands as this is challenging. Alternately we could provide ssh tunnel instructions.

[gamarin2]

Fixed in #3922