Controller Actions

Controllers are Craft’s way of talking to the outside world. Pretty much everything you do with Craft is part of a request that involves a controller action—from updating settings to rendering an entry.

Most controllers and actions are carefully locked down with permissions to prevent malicious activity, but a select few are necessarily available to users and guests without special permissions to support features like public registration or cart management.

The following list of controller actions is non-exhaustive, but covers common patterns like logging in, creating entries, and managing an address book.

#Available Actions

This is not a comprehensive list! We have selected a few actions to illustrate fundamentals that many projects can benefit from—and to get you prepared to explore the rest of Craft’s HTTP API.

Action | Description ------ | -----------

In each of the following examples, you’ll find a list of Supported Params (the values you can send as GET query params or in the POST body) and information about the possible Response conditions.

Supported Params can be encoded in the query string, submitted with form inputs, or sent as properties in a JSON payload.

#Globally-Supported Params

All POST actions honor a few additional parameters, except when using an Accepts: application/json header:

• redirect — A hashed URL or path that Craft will send the user to after a successful request (i.e. a user is registered or an entry is saved).
• successMessage — Overrides the default flash notice for the action.
• failMessage — Overrides the default flash error for the action.

You can use the redirectInput(), successMessageInput(), and failMessageInput() Twig functions to inject these params into a form.

#POST entries/save-entry

Create or update an entry the current User has appropriate permissions for.

See the Entry Form guide for an example of working with this action.

Note that all custom fields can updated by users. For this reason, you should not assume that custom fields are protected from modification simply because they are omitted from the form.

Similarly, if you are outputting user-submitted content anywhere on site, take special care to prevent yourself or other users from being exposed to XSS vulnerabilities!

#Supported Params

Param | Description ----- | ----------- author | The ID of the user account that should be set as the entry author. (Defaults to the entry’s current author, or the logged-in user.) canonicalId | The ID of the entry to save, if updating an existing entry. enabledForSite | Whether the entry should be enabled for the entry’s siteId (1/0), or an array of site IDs that the entry should be enabled for. (Defaults to the enabled param.) enabled | Whether the entry should be enabled (1/0). (Defaults to enabled.) entryId | Fallback if canonicalId isn’t passed, for backwards compatibility. entryVariable | The hashed name of the variable that should reference the entry, if a validation error occurs. (Defaults to entry.) expiryDate | The expiry date for the entry. (Defaults to the current expiry date, or null.) fieldsLocation | Parameter name under which Craft will look for custom field data. (Defaults to fields.) fields[...] | Custom field values. parentId | The ID of the parent entry, if it belongs to a structure section. postDate | The post date for the entry. (Defaults to the current post date, or the current time.) provisional | Updates the current user’s provisional draft (in the control panel, this correlates to an auto-save). revisionNotes | Notes that should be stored on the new entry revision. sectionId | The ID of the section the entry will be created in. (Only for new entries. User must have appropriate permissions.) siteId | The ID of the site to save the entry in. slug | The entry slug. (Defaults to the current slug, or an auto-generated slug.) sourceId | Fallback if canonicalId isn’t passed, for backwards compatibility. title | The entry title. (Defaults to the current entry title.) typeId | The entry type ID to save the entry as. (Defaults to the current entry type for existing entries, or the first configured type for new ones.)

#Permissions

Requests to entries/save-entry must by made by a logged-in user with the appropriate permissions. Permissions are dependent upon the site, section, and the original author (for existing entries).

It is not currently possible to allow anonymous access without a plugin.

#Response

The action’s output depends on whether the entry saved successfully and the Accept header.

State | text/html | application/json ----- | ----------- | ------------------

#POST users/login

Logs a user in.

See the Front-End User Accounts guide for an example of working with this action.

#Supported Params

Param | Description ----- | ----------- loginName | The username or email of the user to login. password | The user’s password. rememberMe | Whether to keep the user logged-in for an extended period of time per the config5:rememberedUserSessionDuration config setting (1/0).

#Response

The output of the action depends on whether the login was successful and the Accept header.

State | text/html | application/json ----- | ----------- | ------------------

The errorCode corresponds to one of the craft\elements\User::AUTH_* constants.

#POST users/save-user

Registers a new user account, or updates an existing one.

See the Front-End User Accounts guide for an example of working with this action.

Note that all custom fields can updated by users. For this reason, you should not assume that custom fields are protected from modification simply because they are omitted from the form.

#Supported Params

Param | Description ----- | ----------- admin | Whether the user should be saved as an admin (1/0). Only assignable if the logged-in user is an admin. currentPassword | The user’s current password, which is required if email or newPassword are sent. email | The user’s email address. (Only checked if registering a new user, updating the logged-in user, or the logged-in user is allowed to administrate users.) fieldsLocation | Parameter name under which Craft will look for custom field data. (Defaults to fields.) fields[...] | Custom field values. fullName | The user’s full name. Preferred to discrete firstName and lastName params. firstName | The user’s first name. fullName is preferred. lastName | The user’s last name. fullName is preferred. newPassword | The user’s new password, if updating the logged-in user’s account. (If registering a new user, send password.) passwordResetRequired | Whether the user must reset their password before logging in again (1/0). Only assignable if the logged-in user is an admin. password | The user’s password, when registering a new user. (Has no effect if config5:deferPublicRegistrationPassword is true. To change the current user’s password, send newPassword.) photo | An uploaded user photo. Use <input type="file">. sendVerificationEmail | Whether a verification email should be sent before accepting the new email (1/0). (Only used if email verification is enabled, and the logged-in user is allowed to opt out of sending it.) userId | The ID of the user to save, if updating an existing user. userVariable | The hashed name of the variable that should reference the user, if a validation error occurs. (Defaults to user.) username | The user’s username. (Only checked if the config5:useEmailAsUsername config setting is false.)

#Permissions

Special permissions are required to allow users to administrate or update other users. A user can always update their own account.

Granting administrative permissions to front-end users opens your site up to permissions escalation and significant abuse.

#Response

The output depends on whether the user save action was successful and the Accept header.

State | text/html | application/json ----- | ----------- | ------------------

#POST users/upload-user-photo

Sets a user’s photo to an uploaded image.

You can update a user’s other properties and fields at the same time as uploading a photo, via users/save-user.

#Supported Params

Param | Description ----- | ----------- userId | ID of the user. Required, pass {{ currentUser.id }} to change a user’s own photo. photo | Uploaded image. Use <input type="file">.

Files cannot be uploaded using Content-Type: application/json.

#Response

The output depends on whether the upload was successful. Only JSON is returned, and the request must include the Accept: application/json header.

State | application/json ----- | ------------------

#POST users/send-password-reset-email

Sends a password reset email.

See the Front-End User Accounts guide for an example of working with this action.

#Supported Params

Param | Description ----- | ----------- loginName | The username or email of the user to send a password reset email for. userId | The ID of the user to send a password reset email for. (Only checked if the logged-in user has permission to edit other users.)

#Response

The output of the action depends on whether the user exists, the reset password email was sent successfully, and the Accept header.

State | text/html | application/json ----- | ----------- | ------------------

The errors variable may include multiple discrete failure messages, but the standard message variable will still be an accurate summary.

#GET/POST users/set-password

A GET request displays a form allowing a user to set a new password on their account, and POST sets a new password on a user account. If the user is pending, their account will be activated.

This action is responsible for rendering the route defined by the config5:setPasswordPath setting.

#Supported Params

Param | Description ----- | ----------- code | GET/POST The user’s verification code. Craft will provide this in URLs generated from the control panel, or when a link is sent via email. id | GET/POST The user’s UUID. newPassword | POST The user’s new password.

code and id are required for both GET and POST requests; users may click a link from an email that includes both as query params—it’s your responsibility to pass these to Craft as hidden fields (along with newPassword) in a subsequent form submission.

See the Front-End User Accounts article for an example of how to set up this form.

#Response

The output of the action depends on the request method, whether the password was updated successfully, and the Accept header.

For GET requests:

State | text/html ----- | -----------

For POST requests:

State | text/html | application/json ----- | ----------- | ------------------

#POST users/save-address

Saves or updates an address element against the current user’s account.

#Supported Params

Param | Description ----- | ----------- addressId | An existing address’s ID can be sent to update it, as long as it’s owned by the current user. userId | Owner of the new address. Owners cannot be changed after creation, and new addresses can only be created for the current user or other users they are allowed to edit. fullName | Name for the address. First and last names are not stored discretely, but can by submitted separately. firstName | Can be submitted independently from lastName, but will be combined for storage. lastName | Can be submitted independently from firstName, but will be combined for storage. countryCode | Required to localize and validate the rest of the address. organization | Additional line for an organization or business name. organizationTaxId | Tax/VAT ID. latitude and longitude | GPS coordinates for the address. Not automatically populated or validated. fields[...] | Custom field values. fieldsLocation | Parameter name under which Craft will look for custom field data. (Defaults to fields.)

This list is incomplete!

The remaining params depend upon the submitted countryCode—refer to the commerceguys/addressing library for a comprehensive list, or learn more about managing addresses in Craft.

#Response

The output of the action depends on whether the address was saved successfully and the Accept header.

State | text/html | application/json ----- | ----------- | ------------------

#POST users/delete-address

Deletes an address owned by the current user or another user they can edit.

#Supported Params

Param | Description ----- | ----------- addressId | An existing address ID, owned by the current user or a user they’re allowed to edit.

#Response

State | text/html | application/json ----- | ----------- | ------------------

#GET users/session-info

Retrieves information about the current session. Data is returned as JSON, and is only intended for consumption via Ajax.

#Response

Only JSON responses are sent, but its content will differ for guests and logged-in users.

State | application/json ----- | ------------------

#GET app/health-check

A “no-op” action provided for automated monitoring.

#Response

The response will be successful (but empty) in all but “exceptional” situations, like an issue connecting to the database. Read more about the criteria for a successful health check.

State | Any ----- | ---

#Plugins + Custom Actions

Many plugins expose functionality via their own controllers and actions. Their accepted parameters and response types are entirely up to the author, but the fundamentals will be the same. Consult the appropriate documentation for specifics!

Here are some examples in our own plugins:

• Commerce: A variety of cart management capabilities are provided for users and guests.
• Contact Form: Adds the contact-form/send action for processing submissions and delivering notifications.
• Element API: Customizable routes get mapped to queries, and return JSON representations of elements.

Custom modules can also provide actions via a Controller.