eventTypeIds is an array parameter, and multiple IDs can be set.

"params": {
    "filter": {
        "eventTypeIds": ["1","2","7"]
    }
}

"error": "TEMPORARY_BAN_TOO_MANY_REQUESTS"

Indicates that more than 3 requests are sent simultaneously.

If all markets are needed, it is recommended to use Navigation Data For Applications

https://betfair-developer-docs.atlassian.net/wiki/spaces/1smk3cen4v3lu3yomq5qye0ni/pages/2687802/Navigation+Data+For+Applications