CaaS and Geospatial-Index

Zendesk API User

• 4 mars 2022 10:06

Author: MBischof
Publication Date: 3/4/2022 10:06

Hello community,

has anybody experience in generating and using a geospatial-index inside of the CaaS and want to share?

 

Usecase:

We store the data (address, opening times, location, latitude, longitude,...) of our branch-offices inside the Caas and our mobile app consumes the data. Now there should be some kind of proximity search to get the next X offices around my current location. 

We expanded our data and stored a GeoJson-Object additionally, but now the big question is, how to generate the geospatial-index. Helpdesk says, basically the Rest-Api leverages MongoDB's geospatial support but we have currently no Idea, how to start generating the index.

Any ideas to that out there ?

 

Thanks in advance for any suggestion, 

 

Best regards,

Marco

Tags: caas

0

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  Zendesk API User

  • 7 mars 2022 14:30

  Author: NMc - 3/7/2022 14:30
  

  In general an index in the Rest API can be created by following this documentation:

  https://restheart.org/docs/mongodb-rest/indexes/

   

  You can read how a geospatial index would look like here: https://docs.mongodb.com/manual/geospatial-queries/#geospatial-indexes

   

  An example Request could look like this:

   

  curl --location --request PUT 'https://${customer}-${stage}caas-api.e-spirit.cloud/${tenant-id}/${project-uuid}.preview.content/_indexes/my-geospatial-index' \

  --header 'authorization: apikey="*****************"' \

  --header 'Content-Type: application/json' \

  --data-raw '{

      "keys": {

          "2dsphere": 1

      }

  }'

   

  Kind regards,

  Nico

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  Zendesk API User

  • 22 mars 2022 16:44

  Author: groth - 3/22/2022 16:44
  

  Hi  ,

  did the answer from  help? If not I might suggest a slightly different payload for the curl request:

  curl --location --request PUT 'https://${customer}-${stage}caas-api.e-spirit.cloud/${tenant-id}/${project-uuid}.preview.content/_indexes/my-geospatial-index' \ --header 'authorization: apikey="*****************"' \ --header 'Content-Type: application/json' \ --data-raw '{ "keys": { "<fieldname>": "2dsphere" } }'

  Based on these resources:

  • https://restheart.org/docs/v4/mgmt/indexes/#example---create-a-text-index-on-property-item (not using text as index type, but 2dsphere)
  • https://docs.mongodb.com/manual/geospatial-queries/#2dsphere

  Would love to get some feedback if your issue could be solved.

  Best regards, Chris

  0
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  Zendesk API User

  • 23 mars 2022 09:00

  Author: MBischof - 3/23/2022 9:00
  

  HI , 

  thanks for your reply. Based on your suggestions we found a working solution for us.

  The basic things like the data-structure (Geo-Json Object) were correct before, the missing thing was to use a PUT-Statement to create the index over the correct field. Once this was done, getting the correct data with a $near-Operator was easy...

  So again thanks for you help and best regards,

  Marco

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