How to generate the 192 bits `X-API-SIG` header (/api/v3/apiKey)

[26medias]

Hi,

I have exported my account data, I can run the basic keygen example (using python poseidon_hash_sample.py -a sign -i 1,2,3 -k 0x1), however I'm confused as to what data from my account settings (Public X, public Y, Private EDDSA) to pass to the keygen and in which format.

The doc seems to be missing that part.

My goal is to obtain my API key via /api/v3/apiKey, so I can then connect to the websockets (https://docs.loopring.io/en/websocket/overview.html)

Thanks!

[yueawang]

We have the api call here https://github.com/Loopring/hello_loopring/blob/0f86004f3695eb5296cad51a086bd360ed4cb1b7/sdk/loopring_v3_client.py#L407. You can flow the whole process to make your code work. Generally speaking, It is to sign the hash string of the whole request. The pseudo code is like

x_api_sig = eddsa_sign(poseidon_hash(sha256(url_request_string)))