> For the complete documentation index, see [llms.txt](https://docs.digit.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.digit.org/platform/guides/developer-guide/backend-developer-guide/section-5-other-advanced-integrations/add-indexer-configuration.md).
# Add Indexer Configuration
## Overview
The indexer is designed to perform all the indexing tasks of the DIGIT platform. The service reads records posted on specific Kafka topics and picks the corresponding index configuration from the yaml file provided by the respective module configuration. Configurations are yaml based. A detailed guide to creating indexer configs is mentioned in the following document - [Indexer Configuration Guide](/platform/platform/api-specifications/indexer.md).
## Steps
1. Create a new file under `egov-indexer` in `configs` repo by the name of `digit-developer-guide.yml` and place the below content into it -
```yaml
ServiceMaps:
serviceName: Birth Registration Service
version: 1.0.0
mappings:
- topic: save-bt-application
configKey: INDEX
indexes:
- name: btindex-v1
type: _doc
id: $.id
isBulk: true
timeStampField: $.auditDetails.createdTime
jsonPath: $.BirthRegistrationApplications
customJsonMapping:
indexMapping: {"Data":{"birthapplication":{},"history":{}}}
fieldMapping:
- inJsonPath: $
outJsonPath: $.Data.birthapplication
externalUriMapping:
- path: http://localhost:8282/egov-workflow-v2/egov-wf/process/_search
queryParam: businessIds=$.applicationNumber,history=true,tenantId=$.tenantId
apiRequest: {"RequestInfo":{"apiId":"org.egov.pt","ver":"1.0","ts":1502890899493,"action":"asd","did":"4354648646","key":"xyz","msgId":"654654","requesterId":"61","authToken":"d9994555-7656-4a67-ab3a-a952a0d4dfc8","userInfo":{"id":1,"uuid":"1fec8102-0e02-4d0a-b283-cd80d5dab067","type":"EMPLOYEE","tenantId":"pb.amritsar","roles":[{"name":"Employee","code":"EMPLOYEE","tenantId":"pb.amritsar"}]}}}
uriResponseMapping:
- inJsonPath: $.ProcessInstances
outJsonPath: $.Data.history
- topic: update-bt-application
configKey: INDEX
indexes:
- name: btindex-v1
type: general
id: $.id
isBulk: true
timeStampField: $.auditDetails.createdTime
jsonPath: $.BirthRegistrationApplications
customJsonMapping:
indexMapping: {"Data":{"birthapplication":{},"history":{}}}
fieldMapping:
- inJsonPath: $
outJsonPath: $.Data.birthapplication
externalUriMapping:
- path: http://egov-workflow-v2.egov:8080/egov-workflow-v2/egov-wf/process/_search
queryParam: businessIds=$.applicationNumber,history=true,tenantId=$.tenantId
apiRequest: {"RequestInfo":{"apiId":"org.egov.pt","ver":"1.0","ts":1502890899493,"action":"asd","did":"4354648646","key":"xyz","msgId":"654654","requesterId":"61","authToken":"d9994555-7656-4a67-ab3a-a952a0d4dfc8","userInfo":{"id":1,"uuid":"1fec8102-0e02-4d0a-b283-cd80d5dab067","type":"EMPLOYEE","tenantId":"pb.amritsar","roles":[{"name":"Employee","code":"EMPLOYEE","tenantId":"pb.amritsar"}]}}}
uriResponseMapping:
- inJsonPath: $.ProcessInstances
outJsonPath: $.Data.history
```
**Note: Follow the steps below when the code is deployed to the DIGIT environment. These steps are not applicable for deployment in the local environment. You may choose to follow these when you build and deploy.**
### Indexer Configuration Deployment
2. Navigate to the forked DIGIT-DevOps repository. Under the `deploy-as-code/helm/environments` directory, find the deployment helm chart that was used to deploy DIGIT.
3. In the deployment helm chart (which was used to set up the DIGIT environment), find "egov-indexer". Find the "egov-indexer-yaml-repo-path" property and add the path to your new indexer file here. The code block is shown below for reference:
```
egov-indexer:
replicas: 1
images:
- egovio/egov-indexer
db_migration_image: egovio/egov-indexer-db
initContainers:
gitSync:
repo: "git@github.com:egovernments/configs"
branch: "DEV"
egov-indexer-yaml-repo-path: "file:///work-dir/configs/egov-indexer/privacy-audit.yaml,file:///work-dir/configs/egov-indexer/billingservices-indexer.yml,file:///work-dir/configs/egov-indexer/collection-indexer.yml,file:///work-dir/configs/egov-indexer/egov-telemetry-indexer.yml,file:///work-dir/configs/egov-indexer/egov-uploader-indexer.yml,file:///work-dir/configs/egov-indexer/error-queue.yml,file:///work-dir/configs/egov-indexer/finance-rolloutadotpion-indexer.yml,file:///work-dir/configs/egov-indexer/payment-indexer.yml,file:///work-dir/configs/egov-indexer/pgr-services.yml,file:///work-dir/configs/egov-indexer/rainmaker-pgr-indexer.yml,file:///work-dir/configs/egov-indexer/rainmaker-pt-indexer.yml,file:///work-dir/configs/egov-indexer/rainmaker-tl-indexer.yml,file:///work-dir/configs/egov-indexer/chatbot-telemetry.yaml,file:///work-dir/configs/egov-indexer/water-service.yml,file:///work-dir/configs/egov-indexer/water-services-meter.yml,file:///work-dir/configs/egov-indexer/sewerage-service.yml,file:///work-dir/configs/egov-indexer/property-services.yml,file:///work-dir/configs/egov-indexer/chatbot-telemetry-v2.yaml,file:///work-dir/configs/egov-indexer/egov-fsm.yaml,file:///work-dir/configs/egov-indexer/egov-vehicle.yaml,file:///work-dir/configs/egov-indexer/egov-vendor.yaml,file:///work-dir/configs/egov-indexer/egov-url-shortening-indexer.yaml,file:///work-dir/configs/egov-indexer/fire-noc-service.yml,file:///work-dir/configs/egov-indexer/egov-echallan.yml,file:///work-dir/configs/egov-indexer/egov-bpa-indexer.yml,file:///work-dir/configs/egov-indexer/edcr-indexer.yml,file:///work-dir/configs/egov-indexer/rainmaker-birth-indexer.yml,file:///work-dir/configs/egov-indexer/rainmaker-death-indexer.yml"
```
4. Raise a PR to the DevOps branch which was forked/used to create the deployment. Once that is merged, restart the indexer service and make sure the cluster configs are propagated.
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