Gareth Kirwan 1f89048ddb Okx: Fix Instrument unmarshal (#1225) ...

* Okx: Fix Instrument unmarshal

This fixes: `json: invalid use of ,string struct tag, trying to unmarshal "" into float64`
when TwapSz or other fields are empty, which happened briefly today.

As a DriveBy it also simplifies the exposed Instrument type to native
types only.

* Okx: Add missing InstrumentFamily to Instrument

* Okx: Add Instrument Unmarshal tests

DriveBy: Removes stray newline in type conversions

* Okx: Fix empty line upsetting linter

2023-06-13 15:27:01 +10:00

47 KiB

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