Incorrect STRIKE_TYPE Field Documentation

[tifoji]

Bug Report: Incorrect STRIKE_TYPE Field Documentation in LevelOneOptionFields

Description

There is a discrepancy between the Schwab API documentation and the implementation in the LevelOneOptionFields enum in schwab/streaming.py. Field index 20 is labeled as "STRIKE_TYPE" in the code but should be "STRIKE_PRICE" according to the official Schwab documentation.

Official Documentation vs. Current Implementation

According to the official Schwab API documentation:

Field Index	Field Name	Type	Description
20	Strike Price	double	Contract strike price

But in the current implementation:

#: Strike type
STRIKE_TYPE = 20

Impact

This mismatch causes confusion when parsing option data. When trying to access the strike price using the field name rather than index, developers may use the wrong field name (STRIKE_TYPE instead of STRIKE_PRICE).

The issue becomes apparent when trying to access this field by name in code:

# This fails with: AttributeError: type object 'LevelOneOptionFields' has no attribute 'STRIKE_PRICE'
fields_enum.STRIKE_PRICE

Sample Response Data

Here's a sample response from the API showing that field index 20 is indeed the strike price:

{
    "key": "SPY   250421P00512000",
    "delayed": false,
    "assetMainType": "OPTION",
    "cusip": "",
    "1": "SPY 04/21/2025 512.00 P",
    "2": 0.02,
    "3": 0.03,
    "4": 0.02,
    "5": 3.85,
    "6": 0.02,
    "7": 0.605,
    "8": 216581,
    "9": 592,
    "10": 14.67855532,
    "11": -1.88,
    "12": 2025,
    "15": 0.49,
    "16": 58,
    "17": 123,
    "18": 1,
    "20": 512,
    "21": "P",
    "22": "SPY",
    "23": 4,
    "25": 0.02,
    "26": 21,
    "27": 0,
    "28": -0.0527405,
    "29": 0.09448764,
    "30": -0.02536034,
    "31": 0.00842988,
    "32": -6.192e-05,
    "34": 0.02536034,
    "35": 513.88,
    "37": 0.025
}

As you can see, field "20" contains the value 512, which is the strike price.

Recommended Fix

Update the field name in LevelOneOptionFields enum:

# Change from:
#: Strike type
STRIKE_TYPE = 20

# To:
#: Strike price
STRIKE_PRICE = 20

Maintaining backward compatibility could be achieved by keeping both field names if needed.

[pcoughlin]

Initial field names are sometimes not the best. I would like to see this change made.