This API is used to obtain the the list of expiration dates of option chain
SDK Links
ℹ️Info
Business Command: 20
Request 
Parameters 
| Name | Type | Required | Description | 
|---|---|---|---|
| symbol | string | Yes | Security code, in ticker.region format, for example:700.HK | 
Protobuf 
protobuf
message SecurityRequest {
  string symbol = 1;
}Request Example 
python
# Get Option Chain Expiry Date List
# https://open.longportapp.com/docs/quote/pull/optionchain-date
# Before running, please visit the "Developers to ensure that the account has the correct quotes authority.
# If you do not have the quotes authority, you can enter "Me - My Quotes - Store" to purchase the authority through the "LongPort" mobile app.
from longport.openapi import QuoteContext, Config
config = Config.from_env()
ctx = QuoteContext(config)
resp = ctx.option_chain_expiry_date_list("AAPL.US")
print(resp)Response 
Response Properties 
| Name | Type | Description | 
|---|---|---|
| expiry_date | string[] | option chain expiry dates list,in YYMMDD format | 
Protobuf 
protobuf
message OptionChainDateListResponse {
  repeated string expiry_date = 1;
}Response JSON Example 
json
{
  "expiry_date": [
    "20220422",
    "20220429",
    "20220506",
    "20220513",
    "20220520",
    "20220527",
    "20220603",
    "20220617",
    "20220715",
    "20220819",
    "20220916",
    "20221021",
    "20221118",
    "20230120",
    "20230317",
    "20230616",
    "20230915",
    "20240119",
    "20240621"
  ]
}Error Code 
| Protocol Error Code | Business Error Code | Description | Troubleshooting Suggestions | 
|---|---|---|---|
| 3 | 301600 | Invalid request | Invalid request parameters or unpacking request failed | 
| 3 | 301606 | Request rate limit | Reduce the frequency of requests | 
| 7 | 301602 | Server error | Please try again or contact a technician to resolve the issue | 
| 7 | 301600 | Symbol not found | Check that the requested symbol is correct |