CommonConfig.ts

const POLYGON = [
    {long: 9.167607, lat: 48.778201},
    {long: 9.185958, lat: 48.769639},
    {long: 9.207777, lat: 48.773653},
    {long: 9.236923, lat: 48.790480},
    {long: 9.219015, lat: 48.805266},
    {long: 9.203548, lat: 48.817967},
    {long: 9.172679, lat: 48.811559},
];
const POLYGON_STR =
    POLYGON.concat([POLYGON[0]])
        .map(location => [location.long, location.lat])
        .map(p => `${p[0]} ${p[1]}`).join(",");

const POLYGON_STR_REVERSED =
    POLYGON.concat([POLYGON[0]])
        .map(location => [location.long, location.lat])
        .map(p => `${p[1]} ${p[0]}`).join(",");

export const ST_WITHIN_FILTER = "st_within(feature, geography'POLYGON " +
    `((${POLYGON_STR}))')`;

export const ST_WITHIN_FILTER_REVERSED = "st_within(feature, geography'POLYGON " +
    `((${POLYGON_STR_REVERSED}))')`;