Geo-proximity with sorted sets in Redis - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to add a location with longitude and latitude to a sorted set.

Redis

GEOADD locations 13.361389 38.115556 [1]

Drag options to blanks, or click blank then click option'

ASicily

BSicilyKey

CSicilyLocation

DSicilySet

Attempts:

3 left

💡 Hint

Common Mistakes

Using the key name instead of the member name.

Confusing longitude and latitude order.

The GEOADD command adds a location with longitude and latitude to the sorted set named locations. The first arguments after the key are longitude and latitude, followed by the member name, here Sicily.

2fill in blank

medium

Complete the code to find locations within 100 km radius from given coordinates.

Redis

GEORADIUS locations 15 37 [1] km

Drag options to blanks, or click blank then click option'

A150

B100

C50

D200

Attempts:

3 left

💡 Hint

Common Mistakes

Using the wrong radius value.

Confusing meters and kilometers.

The GEORADIUS command finds members within a radius. Here, the radius is 100 kilometers.

3fill in blank

hard

Fix the error in the command to get the distance between two locations.

Redis

GEODIST locations Sicily [1] km

Drag options to blanks, or click blank then click option'

APalermo

BPalermoLocation

CPalermoKey

DPalermoSet

Attempts:

3 left

💡 Hint

Common Mistakes

Using incorrect member names.

Adding extra suffixes to member names.

The GEODIST command calculates the distance between two members. The member name must match exactly, here Palermo.

4fill in blank

hard

Fill both blanks to get locations within 50 km and sort results by distance.

Redis

GEORADIUS locations 15 37 [1] km [2]

Drag options to blanks, or click blank then click option'

A50

BASC

CDESC

D100

Attempts:

3 left

💡 Hint

Common Mistakes

Using the wrong radius value.

Using DESC instead of ASC for sorting.

The radius is 50 km, and ASC sorts results from nearest to farthest.

5fill in blank

hard

Fill all three blanks to get locations within 100 km, sorted ascending, and include distances in output.

Redis

GEORADIUS locations 15 37 [1] km [2] WITHDIST [3]

Drag options to blanks, or click blank then click option'

AASC

BDESC

CCOUNT 5

D100

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up ASC and DESC.

Forgetting to include WITHDIST for distances.

The radius is 100 km, sorting ascending with ASC, and limiting results to 5 with COUNT 5. The WITHDIST option includes distances in the output.