Config-As-Code Using REST APIs

Updated 1 month ago by Rashmi Nanda Sahoo

Harness includes many REST APIs that allow you to have full control over its Config-as-Code functionality.

The REST APIs allow you to perform CRUD operations on Harness YAML entities.

The CRUD REST API is different from Harness GraphQL API. For information on the GraphQL API, see Harness GraphQL API FAQs.

In this topic:

Before You Begin

Harness Permissions Required

The Harness User account that executes the API must belong to a User Group with the following Account Permission:

  • Administer Other Account Functions

REST API Summary

Harness provides CRUD APIs that allow you to have full control over your account’s Config-as-Code YAML without having to use the Harness Manager or sync with a Git repo.

Authorization for the APIs is performed using Harness API keys. Ensure you have Harness API keys before using the commands below.

For each API, you use a CURL command that contains the URL and ID of the Harness account and the type of change to make:

https://app.harness.io/gateway/api/setup-as-code/yaml/{change_type}?accountId={account_ID}

You also include headers for Content-Type and authentication:

--header 'accept: application/json, text/plain, */*' \
--header 'x-api-key: [API_key]'

That’s it. You can simply run CRUD operations via REST API to manage your Harness Config-as-Code YAML.

Create and Update Multiple YAML Entities

You can use a ZIP file to create or replace multiple YAML entities in your Harness account.

The upsert-entities parameter identifies that this is a Create or Update operation.

URL: /api/setup-as-code/yaml/upsert-entities?accountId={accountId}

HTTP Method: POST

Query Param: accountId is your account identifier (ID).

Request body: a ZIP (.zip) file consisting of the YAML files for a Harness Application(s) and Application entities (Services, Workflows, Pipelines, Environments, Triggers, Infrastructure Provisioners).

Sample ZIP file:

harness-docs/Setup.zip at main · wings-software/harness-docs

Click Download to view the contents of the ZIP file.

Sample cURL:

curl --location --request POST 'https://app.harness.io/gateway/api/setup-as-code/yaml/upsert-entities?accountId=12345678910' \
--header 'accept: application/json, text/plain, */*' \
--header 'authorization: Bearer {bearer_token}' \
--form 'file=@/Users/johndoe/Documents/SampleApp.zip'

API key example:

curl --location --request POST 'https://app.harness.io/gateway/api/setup-as-code/yaml/upsert-entities?accountId=12345678910' \
--header 'accept: application/json, text/plain, */*' \
--header 'x-api-key: {api_key}' \
--form 'file=@"/Users/johndoe/Downloads/Setup.zip"'

Delete YAML Entities

The delete-entities parameter identifies that this is a Delete operation.

A comma-separated list of file paths identifies the entities to delete.

URL: /api/setup-as-code/yaml/delete-entities?accountId={accountId}&filePaths={comma-separated-list-of-filePaths}

The filePaths should be a full path to the YAML file(s) you want to delete. For example, the following path is to a Kubernetes manifest:

1filePaths=Setup/Applications/test%20app/Services/test3/Manifests/Files/templates/deployment.yaml

HTTP Method: DELETE

Query Params:

  • accountId is your account identifier (ID).
  • filePaths is a comma-separated list of filePath(s).

Response: status code 200 OK if successful, error message if failed.

Sample cURL:

curl --location --request DELETE 'https://app.harness.io/gateway/api/setup-as-code/yaml/delete-entities?accountId=12345678910&filePaths=Setup/Applications/test%20app/Services/test3/Manifests/Files/templates/deployment.yaml' \
--header 'accept: application/json, text/plain, */*' \
--header 'authorization: Bearer {bearer_token}'

API key example:

curl --location --request DELETE 'https://app.harness.io/gateway/api/setup-as-code/yaml/delete-entities?accountId=12345678910&filePaths=Setup/Applications/test%20app/Services/test3/Manifests/Files/templates/deployment.yaml' \
--header 'accept: application/json, text/plain, */*' \
--header 'x-api-key: {api_key}'

Create and Update a Single YAML Entity

Instead of posting a ZIP file to create or update all of the entities in an Application, you can post a single YAML change.

You simply provide the full path to the YAML file and the YAML content (yamlContent) to create/update.

The content must identify the YAML key and value with careful attention paid to any quotes.

For example, here's a line in YAML that you want to change:

harnessApiVersion: '1.0'

The yamlContent must escape the quotes:

'yamlContent={key_name}: '\''1.0'\''

URL: /api/setup-as-code/yaml/upsert-entity?accountId={accountId}&yamlFilePath={yamlFilePath}

HTTP Method: POST

Query Params:

  • accountId is your account identifier (ID).
  • filePaths is a comma-separated list of filePath(s).
  • yamlContent is the form-data parameter holding the YAML content to be created/updated.

Sample curl:

curl -X POST \
  'https://app.harness.io/gateway/api/setup-as-code/yaml/upsert-entity?accountId=12345678910&yamlFilePath=Setup/Applications/test%20app/Index.yaml' \
  -H 'accept: application/json, text/plain, */*' \
  -H 'authorization: Bearer {bearer_token}' \
  -H 'content-type: multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW' \
  -F 'yamlContent=harnessApiVersion: '\''1.0'\''
type: APPLICATION'

API key example:

curl -X POST \
  'https://app.harness.io/gateway/api/setup-as-code/yaml/upsert-entity?accountId=12345678910&yamlFilePath=Setup/Applications/test%20app/Index.yaml' \
  -H 'accept: application/json, text/plain, */*' \
  --header 'x-api-key: {api_key}' \
  -H 'content-type: multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW' \
  -F 'yamlContent=harnessApiVersion: '\''1.0'\''
type: APPLICATION'

Fetch Config-as-Code Directory Structure

You can fetch the directory structure for a Harness Application using the directory parameter.

URL: /api/setup-as-code/yaml/directory?accountId={accountId}&appId={applicationId}

Query Params:

  • accountId is your account identifier (ID).
  • appId is the Application identifier (ID).

HTTP Method: GET

Sample cURL:

curl --location --request GET 'https://app.harness.io/gateway/api/setup-as-code/yaml/directory?accountId=12345678910&appId=fCLnFhwsTryU-HEdKDVZ1g' \
--header 'accept: application/json' \
--header 'content-type: application/json; charset=utf-8' \
--header 'x-api-key: {api_key}'

API key example:

curl --location --request GET 'https://app.harness.io/gateway/api/setup-as-code/yaml/directory?accountId=12345678910&appId=fCLnFhwsTryU-HEdKDVZ1g' \
--header 'accept: application/json' \
--header 'content-type: application/json; charset=utf-8' \
--header 'x-api-key: {api_key}'

Fetch YAML Content for a Single Entity

At this time, this API supports bearer token authentication only. It will be updated in the near future.

Using the response from the Fetch Config-as-Code Directory Structure API (/api/setup-as-code/yaml/directory), you can fetch the YAML content of an individual Application or account-level entity based on its restName and uuid.

For example, here’s the response from a /api/setup-as-code/yaml/directory API call:

For all Application-level entities like Service, Workflow, Pipeline etc., you can use the API to fetch YAML content.

URL: /api/setup-as-code/yaml/{node.restName}/{node.uuid}?accountId={accountId}&appId={appId}

Every node in the tree directory structure returned using the directory parameter has an associated restName property and a uuid. These can be used in the API.

Query Params:

  • node.restName the name of the Harness entity type: workflows, services, pipelines, environments, etc.
  • node.uuid is the universally unique identifier (UUID) of the node.
  • accountId is your account identifier (ID).
  • appId is the Application identifier (ID).

Sample cURL:

curl --location --request GET 'https://qa.harness.io/gateway/api/setup-as-code/yaml/services/pT65F_wHTzSALR2qYknX9Q?accountId=12345678910&appId=fCLnFhwsTryU-HEdKDVZ1g' \
--header 'authorization: Bearer {bearer_token}'

Here node is a node in the YAML tree.

Similarly, for all account-level entities like Cloud providers and Connector, the API call would look like this:

/api/setup-as-code/yaml/{node.restName}/{node.uuid}?accountId={accountId}

Notes

  • To find the bearer token for your session, open Dev Tools in your browser and search for bearer:

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