eslint-plugin-n8n-nodes-base

eslint-plugin-n8n-nodes-base

ESLint plugin for linting n8n nodes.

Usage

Install this plugin:

npm i -D eslint-plugin-n8n-nodes-base

Create an ESLint configuration file and decide how to set up the plugin.

Specify only plugin

If you specify only the plugin, all rules in the plugin are disabled by default and must be individually enabled:

{
  plugins: [ "eslint-plugin-n8n-nodes-base" ],
  rules: {
    "n8n-nodes-base/node-param-array-type-assertion": "warning",
    "n8n-nodes-base/node-param-default-wrong-for-collection": "error"
  }
}

Specify plugin and config

If you specify both the plugin and a config, all config rules are enabled by default and must be individually disabled:

{
  plugins: [ "eslint-plugin-n8n-nodes-base" ],
  extends: [ "plugin:n8n-nodes-base/nodes" ],
  rules: {
    "n8n-nodes-base/node-param-array-type-assertion": "off",
    "n8n-nodes-base/node-param-default-wrong-for-collection": "off"
  }
}

Config	Content
nodes	Ruleset for n8n nodes
credentials	Ruleset for n8n credentials
community	Ruleset for package.json in n8n community package

User-defined defaults

In the community ruleset, the five *-still-default rules allow you to define your own default values:

{
  plugins: [ "eslint-plugin-n8n-nodes-base" ],
  extends: [ "plugin:n8n-nodes-base/nodes" ],
  rules: {
    "n8n-nodes-base/community-package-json-author-name-still-default": [
      "error",
      { authorName: "Neil Armstrong" }, // user-defined default
    ],
  }
}

Ruleset

Name	Description	Autofixable
community-package-json-author-email-still-default	The author.email value in the package.json of a community package must be different from the default value '' (empty string) or a user-defined default.	No
community-package-json-author-missing	The author key must be present in the package.json of a community package.	No
community-package-json-author-name-missing	The author.name key must be present in the package.json of a community package.	No
community-package-json-author-name-still-default	The author.name value in the package.json of a community package must be different from the default value '' (empty string) or a user-defined default.	No
community-package-json-description-missing	The description key must be present in the package.json of a community package.	No
community-package-json-description-still-default	The description value in the package.json of a community package must be different from the default value '' (empty string) or a user-defined default.	No
community-package-json-keywords-missing	The keywords key must be present in the package.json of a community package.	No
community-package-json-keywords-without-official-tag	The keywords value in the package.json of a community package must be an array containing the value 'n8n-community-node-package'.	No
community-package-json-license-missing	The description key must be present in the package.json of a community package.	No
community-package-json-license-not-default	The license key in the package.json of a community package must be the default value MIT.	No
community-package-json-n8n-api-version-missing	The n8n.n8nNodesApiVersion key must be present in the package.json of a community package.	No
community-package-json-n8n-api-version-not-number	The n8n.n8nNodesApiVersion value in the package.json of a community package must be a number.	No
community-package-json-n8n-missing	The n8n key must be present in the package.json of a community package.	No
community-package-json-n8n-nodes-empty	The n8n.nodes value in the package.json of a community package must contain at least one filepath.	No
community-package-json-n8n-nodes-missing	The n8n.nodes key must be present in the package.json of a community package.	No
community-package-json-name-missing	The name key must be present in the package.json of a community package.	No
community-package-json-name-still-default	The name key in the package.json of a community package must be different from the default value n8n-nodes-<...> or a user-defined default.	No
community-package-json-repository-url-still-default	The repository.url value in the package.json of a community package must be different from the default value https://github.com/<...>/n8n-nodes-<...>.git or a user-defined default.	No
community-package-json-version-missing	The version key must be present in the package.json of a community package.	No
cred-class-field-authenticate-type-assertion	In a credential class, the field authenticate must be typed IAuthenticateGeneric	Yes
cred-class-field-display-name-miscased	displayName field in credential class must be title cased.	Yes
cred-class-field-display-name-missing-api	displayName field in credential class must be end with API.	Yes
cred-class-field-display-name-missing-oauth2	displayName field in credential class must mention OAuth2 if the credential is OAuth2.	No
cred-class-field-documentation-url-miscased	documentationUrl field in credential class must be camel cased. Only applicable to nodes in the main repository.	Yes
cred-class-field-documentation-url-missing	documentationUrl field in credential class must be present.	Yes
cred-class-field-documentation-url-not-http-url	documentationUrl field in credential class must be an HTTP URL. Only applicable to community credentials.	No
cred-class-field-name-missing-oauth2	name field in credential class must mention OAuth2 if the credential is OAuth2.	No
cred-class-field-name-unsuffixed	name field in credential class must be suffixed with -Api.	Yes
cred-class-field-name-uppercase-first-char	First char in name in credential class must be lowercase.	Yes
cred-class-field-placeholder-url-missing-eg	placeholder for a URL in credential class must be prepended with e.g..	Yes
cred-class-field-properties-assertion	In a credential class, the field properties must be typed INodeProperties and individual properties must have no assertions.	Yes
cred-class-name-missing-oauth2-suffix	Credential class name must mention OAuth2 if the credential is OAuth2.	No
cred-class-name-unsuffixed	Credential class name must be suffixed with -Api.	Yes
cred-filename-against-convention	Credentials filename must match credentials class name, excluding the filename suffix. Example: TestApi.credentials.ts matches TestApi in class TestApi implements ICredentialType.	No
node-class-description-credentials-name-unsuffixed	name under credentials in node class description must be suffixed with -Api.	Yes
node-class-description-display-name-unsuffixed-trigger-node	displayName in node class description for trigger node must be suffixed with -Trigger.	Yes
node-class-description-empty-string	description in node class description must be filled out.	No
node-class-description-icon-not-svg	icon in node class description should be an SVG icon.	No
node-class-description-inputs-wrong-regular-node	The number of inputs in node class description for regular node should be one, or two for Merge node.	Yes
node-class-description-inputs-wrong-trigger-node	The number of inputs in node class description for trigger node should be zero.	Yes
node-class-description-missing-subtitle	subtitle in node class description must be present.	Yes
node-class-description-name-unsuffixed-trigger-node	name in node class description for trigger node must be suffixed with -Trigger.	Yes
node-class-description-non-core-color-present	color in node class description is deprected and must not be present, except for nodes whose icon is a Font Awesome icon - usually core nodes.	Yes
node-class-description-outputs-wrong	The number of outputs in node class description for any node must be one, or two for If node, or four for Switch node.	Yes
node-dirname-against-convention	Node dirname must match node filename, excluding the filename suffix. Example: Test node dirname matches Test section of Test.node.ts node filename.	No
node-execute-block-double-assertion-for-items	In the execute() method there is no need to double assert the type of items.length.	Yes
node-execute-block-error-missing-item-index	In the operations in the execute() method in a node, NodeApiError and NodeOperationError must specify itemIndex as the third argument.	No
node-execute-block-missing-continue-on-fail	The execute() method in a node must implement continueOnFail in a try-catch block.	No
node-execute-block-wrong-error-thrown	The execute() method in a node may only throw NodeApiError for failed API requests and NodeOperationError for internal errors, not the built-in Error. Refer to NodeErrors.ts.	No
node-filename-against-convention	Node filename must match name in node class description, excluding the filename suffix. Example: Test.node.ts matches Test in property Test.description.name.	No
node-param-array-type-assertion	Array of node parameters must be typed, not type-asserted.	Yes
node-param-collection-type-item-required	Items in collection-type node parameter must not have a required property.	Yes
node-param-collection-type-unsorted-items	Items in collection-type node parameter must be alphabetized by name if five or more than five.	Yes
node-param-color-type-unused	string-type color-related node parameter must be color-type.	Yes
node-param-default-missing	default must be present in a node parameter, except in node parameters under modes.	Yes
node-param-default-wrong-for-boolean	default for boolean-type node parameter must be a boolean.	Yes
node-param-default-wrong-for-collection	default for collection-type node parameter must be an object.	Yes
node-param-default-wrong-for-fixed-collection	default for fixed-collection-type node parameter must be an object.	Yes
node-param-default-wrong-for-limit	default for a Limit node parameter must be 50.	Yes
node-param-default-wrong-for-multi-options	default for a multi-options-type node parameter must be an array.	Yes
node-param-default-wrong-for-number	default for a number-type node parameter must be a number, except for a number-type ID parameter.	Yes
node-param-default-wrong-for-options	default for an options-type node parameter must be one of the options.	Yes
node-param-default-wrong-for-simplify	default for a Simplify node parameter must be true.	Yes
node-param-default-wrong-for-string	default for a string-type node parameter must be a string, unless typeOptions.multipleValues is set to true.	Yes
node-param-description-boolean-without-whether	description in a boolean node parameter must start with Whether.	No
node-param-description-comma-separated-hyphen	The string comma-separated in description must be hyphenated. Applicable by extension to description in option in options-type and multi-options-type node parameter.	Yes
node-param-description-empty-string	description in node parameter or in option in options-type and multi-options-type param must be filled out or removed. Applicable by extension to description in option in options-type and multi-options-type node parameter.	Yes
node-param-description-excess-final-period	description in node parameter must end without a final period if a single-sentence description. Applicable by extension to description in option in options-type and multi-options-type node parameter.	Yes
node-param-description-excess-inner-whitespace	description in node parameter must not contain excess inner whitespace. Applicable by extension to description in option in options-type and multi-options-type node parameter.	Yes
node-param-description-identical-to-display-name	description in node parameter must not be identical to displayName.	Yes
node-param-description-line-break-html-tag	description in node parameter must not contain an HTML line break. Applicable by extension to description in option in options-type and multi-options-type node parameter.	Yes
node-param-description-lowercase-first-char	First char in description in node parameter must be uppercase. Applicable by extension to description in option in options-type and multi-options-type node parameter.	Yes
node-param-description-miscased-id	ID in description in node parameter must be fully uppercased. Applicable by extension to description in option in options-type and multi-options-type node parameter.	Yes
node-param-description-miscased-json	JSON in description in node parameter must be fully uppercased. Applicable by extension to description in option in options-type and multi-options-type node parameter.	Yes
node-param-description-miscased-url	URL in description in node parameter must be fully uppercased. Applicable by extension to description in option in options-type and multi-options-type node parameter.	Yes
node-param-description-missing-final-period	description in node parameter must end with a final period if a multiple-sentence description, unless ending with </code>. Applicable by extension to description in option in options-type and multi-options-type node parameter.	Yes
node-param-description-missing-for-ignore-ssl-issues	description for Ignore SSL node parameter must be present.	Yes
node-param-description-missing-for-return-all	description for Return All node parameter must be present.	Yes
node-param-description-missing-for-simplify	description for Simplify node parameter must be present.	Yes
node-param-description-missing-from-dynamic-multi-options	description in dynamic-multi-options-type node parameter must be present.	Yes
node-param-description-missing-from-dynamic-options	description in dynamic-options-type node parameter must be present.	Yes
node-param-description-missing-from-limit	description in Limit node parameter must be present.	Yes
node-param-description-unencoded-angle-brackets	description in node parameter must encode angle brackets for them to render. Applicable by extension to description in option in options-type and multi-options-type node parameter.	Yes
node-param-description-unneeded-backticks	description in node parameter must not use unneeded backticks. Applicable by extension to description in option in options-type and multi-options-type node parameter.	Yes
node-param-description-untrimmed	description in node parameter must be trimmed. Applicable by extension to description in option in options-type and multi-options-type node parameter.	Yes
node-param-description-url-missing-protocol	description in node parameter must include protocol when containing a URL. Applicable by extension to description in option in options-type and multi-options-type node parameter.	Yes
node-param-description-weak	description in node parameter must be either useful or omitted. Applicable by extension to description in option in options-type and multi-options-type node parameter.	Yes
node-param-description-wrong-for-dynamic-multi-options	description in dynamic-multi-options-type node parameter must be Choose from the list, or specify IDs using an <a href="https://docs.n8n.io/code-examples/expressions/">expression</a>	Yes
node-param-description-wrong-for-dynamic-options	description in dynamic-options-type node parameter must be Choose from the list, or specify an ID using an <a href="https://docs.n8n.io/code-examples/expressions/">expression</a>	Yes
node-param-description-wrong-for-ignore-ssl-issues	description for Ignore SSL node parameter must be Whether to connect even if SSL certificate validation is not possible	Yes
node-param-description-wrong-for-limit	description for Limit node parameter must be Max number of results to return	Yes
node-param-description-wrong-for-return-all	description for Return All node parameter must be Whether to return all results or only up to a given limit	Yes
node-param-description-wrong-for-simplify	description for Simplify node parameter must be Whether to return a simplified version of the response instead of the raw data	Yes
node-param-description-wrong-for-upsert	description for Upsert node parameter must be Create a new record, or update the current one if it already exists (upsert). The resource name e.g. 'contact' is also allowed instead of 'record'.	Yes
node-param-display-name-excess-inner-whitespace	displayName in node parameter or in fixed collection section must not contain excess inner whitespace. Applicable by extension to name in options-type or multi-options-type node parameter.	Yes
node-param-display-name-miscased-id	ID in displayName in node parameter must be fully uppercased. Applicable by extension to name in options-type or multi-options-type node parameter.	Yes
node-param-display-name-miscased	displayName in node parameter or in fixed collection section must title cased. Applicable by extension to name in options-type or multi-options-type node parameter.	Yes
node-param-display-name-not-first-position	By convention, displayName in node parameter must be placed first.	Yes
node-param-display-name-untrimmed	displayName in node parameter or in fixed collection section must be trimmed. Applicable by extension to name in options-type or multi-options-type node parameter.	Yes
node-param-display-name-wrong-for-dynamic-multi-options	displayName for dynamic-multi-options-type node parameter must end with Names or IDs	Yes
node-param-display-name-wrong-for-dynamic-options	displayName for dynamic-options-type node parameter must end with Name or ID	Yes
node-param-display-name-wrong-for-simplify	displayName for Simplify node parameter must be Simplify	Yes
node-param-display-name-wrong-for-update-fields	displayName for Update operation node parameter must be Update Fields	Yes
node-param-fixed-collection-type-unsorted-items	Items in a fixed-collection-type node parameter section must be alphabetized by displayName if five or more than five, unless the items are address fields.	Yes
node-param-min-value-wrong-for-limit	minValue for Limit node parameter must be a positive integer.	Yes
node-param-multi-options-type-unsorted-items	Items in a multi-options-type node parameter must be alphabetized by name if five or more than five.	Yes
node-param-name-untrimmed	name in node parameter or in fixed collection section must be trimmed.	Yes
node-param-operation-option-action-miscased	The property action in an option in an Operation node parameter must be sentence-cased.	Yes
node-param-operation-option-action-wrong-for-get-many	The property action in a Get Many option in an Operation node parameter must start with Get many.	Yes
node-param-operation-option-description-wrong-for-get-many	The property description in a Get Many option in an Operation node parameter must mention many instead of all.	Yes
node-param-operation-option-without-action	An option in an Operation node parameter must have an action property. The action property may or may not be identical to the description property.	Yes
node-param-operation-without-no-data-expression	noDataExpression in an Operation node parameter must be present and enabled.	Yes
node-param-option-description-identical-to-name	description in option in options-type node parameter must not be identical to name.	Yes
node-param-option-name-containing-star	Option name in options-type node parameter must not contain *. Use [All] instead.	Yes
node-param-option-name-duplicate	Option name in options-type node parameter must not be a duplicate.	Yes
node-param-option-name-wrong-for-get-many	Option name for Get Many node parameter must be Get Many	Yes
node-param-option-name-wrong-for-upsert	Option name for Upsert node parameter must be Create or Update.	Yes
node-param-option-value-duplicate	Option value in options-type node parameter must not be a duplicate.	Yes
node-param-options-type-unsorted-items	Items in options-type node parameter must be alphabetized by name if five or more than five.	Yes
node-param-placeholder-miscased-id	ID in placeholder in node parameter must be fully uppercased.	Yes
node-param-placeholder-missing-email	placeholder for Email node parameter must exist.	Yes
node-param-required-false	required: false in node parameter must be removed because it is implied.	Yes
node-param-resource-with-plural-option	Option name for a Resource node parameter must be singular.	Yes
node-param-resource-without-no-data-expression	noDataExpression in a Resource node parameter must be present and enabled.	Yes
node-param-type-options-max-value-present	maxValue in typeOptions in Limit node parameter is deprecated and must not be present.	Yes
node-param-type-options-missing-from-limit	typeOptions in Limit node parameter must be present.	Yes
node-param-type-options-missing-from-password	typeOptions.password must be set to true in a Password node parameter, to obscure the password input.	Yes
node-resource-description-filename-against-convention	Resource description file must use singular form. Example: UserDescription.ts, not UsersDescription.ts.	No

Author

© 2022 Iván Ovejero

License

Distributed under the MIT License.