POST /content/resources/find

API reference for the "/content/resources/find" endpoint.
When a user interacts with a content extension, Canva sends a POST request to the following endpoint:
<base_url>/content/resources/find
Specifically, Canva sends this request when a user:
Opens an extension.
Opens a container.
Paginates through resources.
Searches for content.
The purpose of this request is to retrieve content that Canva can display in the side panel of the editor, such as images, embeds, or containers.
The type property in the request body determines the type of resources the extension must provide in the response. For example, when value of the type property is "IMAGE", the endpoint must respond with image resources.
Notes
Extensions must respond to this request within 8 seconds.
When sending this request, Canva replaces <base_url> with the extension's Base URL. You can configure the Base URL via the Developer Portal.
To configure the type of resources that Canva expects the extension to provide, change the extension's Content type via the Developer Portal.
Request
Endpoint
POST <base_url>/content/resources/find
Headers
Property
Type
Required
Description
X-Canva-Signatures
string
Yes
A comma-separated list of request signatures. The name of this header is sometimes lowercase (e.g. x-canva-signatures).
X-Canva-Timestamp
string
Yes
The UNIX timestamp (in seconds) of when Canva sent the request. The name of this header is sometimes lowercase (e.g. x-canva-timestamp).
Body
Properties
Property
Type
Required
Description
user
string
Yes
The ID of the user.
brand
string
Yes
The ID of the user's team.
label
string
Yes
The type of extension that sent the request.
limit
number
Yes
The maximum number of resources to provide in a response.
locale
string
Yes
The user’s locale as an IETF BCP 47 language tag.
type (deprecated)
string
Yes
The type of resources the extension must provide in the response. Enum: "CONTAINER", "EMBED", "IMAGE"
types
Array<string>
Yes
The types of resources the extension can provide in the response. Enum: "CONTAINER", "EMBED", "IMAGE"
continuation
string
No
A token for paginating resources.
containerId
string
No
The ID of the selected container.
query
string
No
A user-provided search query.
Example
{
  "limit": 100,
  "user": "<user>",
  "brand": "<brand>",
  "label": "<label>",
  "locale": "<locale>",
  "type": "<type>"
}
Responses
200 - Success (containers)
The response an extension must provide when the value of the type property in the request body is "CONTAINER".
Properties
Property
Type
Required
Description
type
"SUCCESS"
Yes
The type of response.
resources
Array<Container>
Yes
The containers to render in the side panel.
continuation
string
No
A token for paginating resources.
Example
{
  "resources": [],
  "type": "SUCCESS"
}
200 - Success (embeds)
The response an extension must provide when the value of the type property in the request body is "EMBED".
Properties
Property
Type
Required
Description
type
"SUCCESS"
Yes
The type of response.
resources
Array<Embed>
Yes
The embeds to render in the side panel.
continuation
string
No
A token for paginating resources.
Example
{
  "resources": [],
  "type": "SUCCESS"
}
200 - Success (images)
The response an extension must provide when the value of the type property in the request body is "IMAGE".
Properties
Property
Type
Required
Description
type
"SUCCESS"
Yes
The type of response.
resources
Array<Image>
Yes
The images to render in the side panel.
continuation
string
No
A token for paginating resources.
Example
{
  "resources": [],
  "type": "SUCCESS"
}
200 - Error
The response an extension provides when it can't provide the requested resources.
Properties
Property
Type
Required
Description
type
"ERROR"
Yes
The type of response.
errorCode
string
Yes
An error code that describes what went wrong. Enum: "CONFIGURATION_REQUIRED", "FORBIDDEN", "INTERNAL_ERROR", "INVALID_REQUEST", "NOT_FOUND", "TIMEOUT"
Example
{
  "type": "ERROR",
  "errorCode": "<error_code>"
}
401 - Invalid request signature or timestamp
An extension must verify the request signature and timestamp of all incoming requests. When an extension can't verify either of these values, it must reject the request with a 401 status code.
Schemas
Container
Represents a container (folder) that Canva renders in the side panel. When a user selects a container, Canva sends a request for resources that belong to the container.
Properties
Property
Type
Required
Description
thumbnail
​Thumbnail​
No
A thumbnail for the container.
id
string
Yes
A unique ID for the container.
name
string
Yes
A human readable name for the container.
type
"CONTAINER"
Yes
The type of resource.
Example
{
  "id": "<id>",
  "name": "<name>",
  "type": "CONTAINER"
}
Embed
Represents embeddable media that Canva renders in the side panel, such as a YouTube video or Instagram photo. When a user selects an embed, Canva adds it to their design.
Properties
Property
Type
Required
Description
id
string
Yes
A unique ID for the embed.
name
string
Yes
A human readable name for the embed.
type
"EMBED"
Yes
The type of resource.
url
string
Yes
The URL of the embeddable media. This URL must be supported by Iframely.
thumbnail
​Thumbnail​
Yes
A thumbnail for the embed.
Example
{
  "id": "<id>",
  "name": "<name>",
  "type": "EMBED",
  "url": "<url>"
}
Image
Represents an image file that Canva renders in the side panel, such as a PNG or SVG. When a user selects an image, Canva uploads the image to the user's account and adds it to their design.
Properties
Property
Type
Required
Description
contentType
string
No
The MIME type of the image. If you omit the contentType, Canva must send a HEAD request to each image, which decreases the performance of the extension. Enum: "image/jpeg", "image/png", "image/svg+xml", "image/heic"
id
string
Yes
A unique ID for the image. This ID should always refer to the same image file.
name
string
Yes
A human readable name for the image.
type
"IMAGE"
Yes
The type of resource.
url
string
Yes
The URL of the full-resolution image. The MIME type of the image must match the type specified in the contentType property. The image must also meet Canva's Upload format and requirements. For security reasons, the URL must not redirect to a different URL.
thumbnail
​Thumbnail​
Yes
A thumbnail for the image. This thumbnail must have the same aspect ratio as the full-resolution image.
Example
{
  "id": "<id>",
  "name": "<name>",
  "type": "IMAGE",
  "url": "<url>"
}
Thumbnail
A thumbnail image.
Properties
Property
Type
Required
Description
url
string
Yes
The URL of the thumbnail.
height
number
No
The height of the thumbnail (in pixels). If you provide a height, you must provide a width.
width
number
No
The width of the thumbnail (in pixels). If you provide a width, you must provide a height.
Example
{
  "url": "<url>"
}
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Property	Type	Required	Description
`X-Canva-Signatures`	string	Yes	A comma-separated list of request signatures. The name of this header is sometimes lowercase (e.g. `x-canva-signatures`).
`X-Canva-Timestamp`	string	Yes	The UNIX timestamp (in seconds) of when Canva sent the request. The name of this header is sometimes lowercase (e.g. `x-canva-timestamp`).