kairos-cli: implement call to deposit endpoint and integration test

[marijanp]

Things done

• Moved all code except cli parsing to kairos_cli::run
• Introduced new kairos-server-address option, that defaults a value if not set
• Implemented a client function that will submit a transaction to the kairos-server, this client function introduces a KairosClientError enum type that could be used for better error handling
• implemented the mapping from cli arguments for a deposit -> deposit payload, signing and submitting of a deposit
• Updated the integration test to actually spawn a kairos-server
• Updated the ne2e-test

Overview

#92

Motivation

[Rom3dius]

I'm a little confused as to why you're spawning a tokio runtime to use reqwests async API in a CLI application when reqwest has a blocking API and the nature of a CLI is generally synchronous.

Let's merge it, just leaving this comment here for future reference and to make everyone aware of reqwests blocking API.

[koxu1996]

Needs more work - details in comments.

[koxu1996]

I'm a little confused as to why you're spawning a tokio runtime to use reqwests async API in a CLI application when reqwest has a blocking API and the nature of a CLI is generally synchronous.

Let's merge it, just leaving this comment here for future reference and to make everyone aware of reqwests blocking API.

@Rom3dius that's right! CLI client (replaced with Rust SDK in the future) should be synchronous, not only for simplicity, but there is no advantage of having async there. @marijanp could you use reqwest::blocking?

[marijanp]

@Rom3dius @koxu1996 I began writing the client with potentially factoring it out in a separate crate, so I decided to make it async as they usually don't block but do so in our CLI. But it might just be premature optimization. so I will make this blocking.

The base branch was changed.

[github-actions]

File	Coverage
All files	53%	❌
kairos-tx/src/asn.rs	48%	❌
kairos-tx/src/error.rs	0%	❌
kairos-server/src/state/transactions/batch_state.rs	42%	❌
kairos-crypto/src/implementations/casper.rs	6%	❌
kairos-server/src/state/transactions.rs	40%	❌
kairos-server/src/state/trie.rs	35%	❌
kairos-server/src/config.rs	0%	❌
kairos-server/src/errors.rs	12%	❌
kairos-server/src/lib.rs	95%	✅
kairos-server/src/state.rs	90%	✅
kairos-server/src/utils.rs	22%	❌
kairos-test-utils/src/cctl/parsers.rs	66%	✅
kairos-test-utils/src/cctl.rs	87%	✅
kairos-server/src/routes/deposit.rs	88%	✅
kairos-server/src/routes/transfer.rs	90%	✅
kairos-server/tests/transactions.rs	85%	✅

Minimum allowed coverage is 60%

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