### LTI Platform Instance Claim Example

Source: https://www.imsglobal.org/spec/lti/v1p3

This example demonstrates the 'https://purl.imsglobal.org/spec/lti/claim/tool_platform' claim, used to identify the specific learning platform instance initiating the LTI launch. The 'guid' is a required, locally unique identifier for the platform instance.

```json
"https://purl.imsglobal.org/spec/lti/claim/tool_platform": {
    "guid": "ex/48bbb541-ce55-456e-8b7d-ebc59a38d435",
    "product_family_code": "ExamplePlatformVendor-ZLMS",
    "name": "LMS from Example University"
}
```

--------------------------------

### LTI 1.3 Resource Link Launch Form Post

Source: https://www.imsglobal.org/spec/lti/v1p3

This example shows the HTTP POST request used to send the LTI 1.3 resource link launch message. The `id_token` parameter contains the JWT-encoded JSON object from the previous example.

```http
POST https://example.tool.com/videos/f7701643-d79a-468a-ba8e-998f98b71638
Content-Type: application/x-www-form-urlencoded


id_token=eyJhbGciOiJIAzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJodHRwczovL3BsYXRmb3JtLmV4YW1wbGUub3JnIiwic3ViIjoiYTZkNWM0NDMtMWY1MS00NzgzLWJhMWEtNzY4NmZmZTNiNTRhIiw iYXVkIjpbIjk2MmZhNGQ4LWJjYmYtNDlhMC05NGIyLTJkZTA1YWQyNzRhZiJdLCJleHAiOjE1MTAxODU3MjgsImlhdCI6MTUxMDE4NTIyOCwiYXpwIjoiOTYyZmE0ZDgtYmNiZi0...
```

--------------------------------

### Custom Parameter Substitution with Empty String

Source: https://www.imsglobal.org/spec/lti/v1p3

Example where a supported custom parameter 'xstart' has an empty string value. This indicates that the variable is supported but has no value, such as when a course has no start date.

```json
{
...
"https://purl.imsglobal.org/spec/lti/claim/custom": {
  "xstart": "",
  ...
  }
...
}
```

--------------------------------

### LTI 1.3 Platform Data Claim

Source: https://www.imsglobal.org/spec/lti/v1p3/impl

Example of the tool platform claim in LTI 1.3, including GUID, contact, name, URL, and version.

```json
{
  "https://purl.imsglobal.org/spec/lti/claim/tool_platform": {
    "guid": "cen-01/a527c23f-8684-41bb-9292-2b274c229c32",
    "contact_email": "support@platform.example.edu",
    "description": "The LMS of Example University",
    "name": "The LMS of Example University",
    "url": "https://platform.example.edu",
    "product_family_code": "ExamplePlatformVendor-Product",
    "version": "1.0"
  }
}
```

--------------------------------

### LTI 1.1 Custom Parameter

Source: https://www.imsglobal.org/spec/lti/v1p3/impl

Example of a custom parameter in an LTI 1.1 launch.

```python
custom_xstart = "2017-04-21T01:00:00Z"

```

--------------------------------

### LTI 1.1 LTI Version

Source: https://www.imsglobal.org/spec/lti/v1p3/impl

Example of the LTI version string in LTI 1.1.

```python
lti_version = "LTI-1p1"
```

--------------------------------

### LTI 1.1 Roles

Source: https://www.imsglobal.org/spec/lti/v1p3/impl

Example of a single role string in LTI 1.1.

```python
roles = "student"
```

--------------------------------

### LTI 1.1 Launch Presentation Data

Source: https://www.imsglobal.org/spec/lti/v1p3/impl

Example of launch presentation parameters like target, dimensions, and return URL in LTI 1.1.

```python
launch_presentation_document_target = "iframe"
launch_presentation_width = "320"
launch_presentation_height = "240"
launch_presentation_return_url = "https://platform.example.edu/terms/201601/courses/7/sections/1/resources/2"
```

--------------------------------

### LTI 1.3 LTI Version Claim

Source: https://www.imsglobal.org/spec/lti/v1p3/impl

Example of the LTI version claim in LTI 1.3.

```json
{
  "https://purl.imsglobal.org/spec/lti/claim/version": "1.3.0"
}
```

--------------------------------

### LTI 1.1 Platform Data

Source: https://www.imsglobal.org/spec/lti/v1p3/impl

Example of platform instance identifiers and contact information in LTI 1.1.

```python
tool_consumer_instance_guid = "cen-01/a527c23f-8684-41bb-9292-2b274c229c32"
tool_consumer_instance_contact_email = "support@platform.example.edu"
tool_consumer_instance_description = "The LMS of Example University"
tool_consumer_instance_name = "The LMS of Example University"
tool_consumer_instance_url = "https://platform.example.edu"
tool_consumer_info_version = "1.0"
```

--------------------------------

### LTI 1.3 Launch Presentation Claim

Source: https://www.imsglobal.org/spec/lti/v1p3/impl

Example of the launch presentation claim in LTI 1.3, including document target, dimensions, and return URL.

```json
{
  "https://purl.imsglobal.org/spec/lti/claim/launch_presentation": {
    "document_target": "iframe",
    "height": 320,
    "width": 240,
    "return_url": "https://platform.example.edu/terms/201601/courses/7/sections/1/resources/2"
  }
}
```

--------------------------------

### Launch Presentation Claim Example

Source: https://www.imsglobal.org/spec/lti/v1p3

Shows the structure of the optional launch presentation claim, which describes how the message sender expects to host the message receiver's user experience.

```json
{
...
"https://purl.imsglobal.org/spec/lti/claim/launch_presentation": {
  "document_target": "iframe",
  ...
  "return_url": "https://platform.example.edu/terms/201601/courses/7/sections/1/resources/2"
  }
...
}
```

--------------------------------

### LTI 1.1 Course Data

Source: https://www.imsglobal.org/spec/lti/v1p3/impl

Example of course-related identifiers and titles in LTI 1.1.

```python
context_id = "c1d887f0-a1a3-4bca-ae25-c375edcc131a"
context_title = "CPS 435 Learning Analytics"
context_label = "CPS 435"
context_type = "CourseOffering"
```

--------------------------------

### LTI 1.1 User ID

Source: https://www.imsglobal.org/spec/lti/v1p3/impl

Example of a user identifier in LTI 1.1.

```python
user_id = "4676-8317-719e225aacdd"
```

--------------------------------

### LTI 1.1 Resource Link Data

Source: https://www.imsglobal.org/spec/lti/v1p3/impl

Example of resource link identifiers and descriptions in LTI 1.1.

```python
resource_link_id = "A200d101f2c14"
resource_link_description = "Assignment to introduce who you are"
resource_link_title = "Introduction Assignment"
```

--------------------------------

### Resolved Custom Parameter Substitution

Source: https://www.imsglobal.org/spec/lti/v1p3

Example of a custom parameter 'xstart' resolved with a date-time value from 'CourseSection.timeFrame.begin'. This occurs when the platform supports the variable and authorizes its access.

```json
{
...
"https://purl.imsglobal.org/spec/lti/claim/custom": {
  "xstart": "2017-04-21T01:00:00Z",
  ...
  }
...
}
```

--------------------------------

### LTI 1.3 Course Data Claim

Source: https://www.imsglobal.org/spec/lti/v1p3/impl

Example of the course context claim in LTI 1.3, including ID, title, label, and type.

```json
{
  "https://purl.imsglobal.org/spec/lti/claim/context": {
    "id": "c1d887f0-a1a3-4bca-ae25-c375edcc131a",
    "title":  "CPS 435 Learning Analytics",
    "label": "CPS 435",
    "type": ["http://purl.imsglobal.org/vocab/lis/v2/course#CourseOffering"]
  }
}
```

--------------------------------

### Unresolved Custom Parameter Substitution

Source: https://www.imsglobal.org/spec/lti/v1p3

Example of a custom parameter 'xstart' passed unresolved as '$CourseSection.timeframe.begin'. This happens when the platform does not support the variable or has not authorized the tool to access it.

```json
{
...
"https://purl.imsglobal.org/spec/lti/claim/custom": {
  "xstart": "$CourseSection.timeframe.begin",
  ...
  }
...
}
```

--------------------------------

### LTI 1.1 Authentication Data

Source: https://www.imsglobal.org/spec/lti/v1p3/impl

Example of OAuth 1.0 authentication parameters used in LTI 1.1.

```python
oauth_version = "1.0"
oauth_nonce = "fc5fdc6d-5dd6-47f4-b2c9-5d1216e9b771"
oauth_timestamp = "1510185728"
oauth_consumer_key = "12345"
oauth_signature_method = "HMAC-SHA1"
oauth_callback = "about:blank"
oauth_signature = "TPFPK4u3NwmtLt0nDMP1G1zG30U="
```

--------------------------------

### LTI 1.3 Roles Claim

Source: https://www.imsglobal.org/spec/lti/v1p3/impl

Example of the roles claim in LTI 1.3, which is an array of role URIs.

```json
{
  "https://purl.imsglobal.org/spec/lti/claim/roles": [
    "http://purl.imsglobal.org/vocab/lis/v2/institution/person#Student",
    "http://purl.imsglobal.org/vocab/lis/v2/membership#Learner",
    "http://purl.imsglobal.org/vocab/lis/v2/membership#Mentor"
  ]
}
```

--------------------------------

### LTI Role-Scope Mentor Claims Example

Source: https://www.imsglobal.org/spec/lti/v1p3

This snippet illustrates the 'https://purl.imsglobal.org/spec/lti/claim/role_scope_mentor' claim, which contains an array of user IDs that the current user can access as a mentor. The sender must include 'http://purl.imsglobal.org/vocab/lis/v2/membership#Mentor' in the 'roles' claim to send this information.

```json
{
...
  "https://purl.imsglobal.org/spec/lti/claim/role_scope_mentor": [
    "fad5fb29-a91c-770-3c110-1e687120efd9",
    "5d7373de-c76c-e2b-01214-69e487e2bd33",
    "d779cfd4-bc7b-019-9bf1a-04bf1915d4d0"
  ]
...
}
```

--------------------------------

### LTI 1.3 LIS Claim

Source: https://www.imsglobal.org/spec/lti/v1p3/impl

Example of the LIS claim in LTI 1.3, including person, course offering, and section sourced IDs.

```json
{
  "https://purl.imsglobal.org/spec/lti/claim/lis": {
    "person_sourcedid": "example.edu:71ee7e42-f6d2-414a-80db-b69ac2defd4",
    "course_offering_sourcedid": "example.edu:SI182-F16",
    "course_section_sourcedid": "example.edu:SI182-001-F16"
  }
}
```

--------------------------------

### Vendor-Specific Extension Claim Example

Source: https://www.imsglobal.org/spec/lti/v1p3

Demonstrates how a vendor can extend the LTI message information model by adding custom claims using fully-qualified URLs as claim names.

```json
"http://www.ExamplePlatformVendor.com/session": {
  "id": "89023sj890dju080"
}
```

--------------------------------

### LTI 1.3 Resource Link Claim

Source: https://www.imsglobal.org/spec/lti/v1p3/impl

Example of the resource link claim in LTI 1.3, including ID, description, and title.

```json
{
  "https://purl.imsglobal.org/spec/lti/claim/resource_link": {
    "id": "200d101f-2c14-434a-a0f3-57c2a42369fd",
    "description": "Assignment to introduce who you are",
    "title": "Introduction Assignment"
  }
}
```

--------------------------------

### LTI 1.1 LIS Information

Source: https://www.imsglobal.org/spec/lti/v1p3/impl

Example of LIS (Learning Information Services) person sourced ID in LTI 1.1.

```python
lis_person_sourcedid = "example.edu:71ee7e42-f6d2-414a-80db-b69ac2defd4"
```

--------------------------------

### LTI 1.3 Authentication Data (JWT Claims)

Source: https://www.imsglobal.org/spec/lti/v1p3/impl

Example of JWT claims used for authentication in LTI 1.3.

```json
{
  "iss": "https://platform.example.edu",
  "sub": "a6d5c443-1f51-4783-ba1a-7686ffe3b54a",
  "aud": ["292832126"],
  "exp": 1510185728,
  "iat": 1510185228,
  "azp": "962fa4d8-bcbf-49a0-94b2-2de05ad274af",
  "nonce": "fc5fdc6d-5dd6-47f4-b2c9-5d1216e9b771"
}
```

--------------------------------

### LTI 1.3 User Data Claims

Source: https://www.imsglobal.org/spec/lti/v1p3/impl

Example of user-related claims in LTI 1.3, including name, email, and locale.

```json
{
  "name": "Ms Jane Marie Doe",
  "given_name": "Jane",
  "family_name": "Doe",
  "middle_name": "Marie",
  "picture": "https://platform.example.edu/jane.jpg",
  "email": "jane@platform.example.edu",
  "locale": "en-US"
}
```

--------------------------------

### LTI Context Claim Example

Source: https://www.imsglobal.org/spec/lti/v1p3

This snippet shows the structure of the 'https://purl.imsglobal.org/spec/lti/claim/context' claim, which provides details about the course or learning environment from which the LTI launch originates. The 'id' is a required, stable identifier for the context.

```json
{
...
"https://purl.imsglobal.org/spec/lti/claim/context": {
"id": "c1d887f0-a1a3-4bca-ae25-c375edcc131a",
"label": "CPS 435",
"title":  "CPS 435 Learning Analytics",
"type": ["http://purl.imsglobal.org/vocab/lis/v2/course#CourseOffering"]
}
...
}
```

--------------------------------

### LTI Resource Link Claim Example

Source: https://www.imsglobal.org/spec/lti/v1p3

Illustrates the structure of the resource link claim, including the required 'id' and optional 'description' and 'title' properties. The 'id' must be a stable, locally unique identifier.

```json
{
...
"https://purl.imsglobal.org/spec/lti/claim/resource_link": {
...
"id": "200d101f-2c14-434a-a0f3-57c2a42369fd",
...
}
...
}
```

--------------------------------

### Referencing LTI Link in Organization Section

Source: https://www.imsglobal.org/spec/lti/v1p3

An example of how to reference a basic LTI link defined in the resources section from the organization section of the IMS Common Cartridge manifest. The 'identifierref' attribute links to the resource's identifier.

```xml
<item identifier="BasicLTI1" identifierref="I_00010_R">
  <title>Homework Problems</title>
</item>
```

--------------------------------

### LTI 1.1 Non-Claim User Data

Source: https://www.imsglobal.org/spec/lti/v1p3/impl

Example of user-related data not part of standard claims in LTI 1.1.

```python
lis_person_name_full = "Ms Jane Marie Doe"
lis_person_name_given = "Jane"
lis_person_name_family = "Doe"
lis_person_contact_email_primary = "jane@platform.example.edu"
user_image = "https://platform.example.edu/jane.jpg"
launch_presentation_locale = "en-US"
```

--------------------------------

### LTI 1.3 Custom Parameter

Source: https://www.imsglobal.org/spec/lti/v1p3/impl

Example of a custom parameter within the claims of an LTI 1.3 resource link request.

```json
{
  "https://purl.imsglobal.org/spec/lti/claim/custom": {
    "xstart": "2017-04-21T01:00:00Z"
  }
}

```

--------------------------------

### Full LTI 1.3 Resource Link Launch Request JSON

Source: https://www.imsglobal.org/spec/lti/v1p3

This JSON object represents a complete LTI 1.3 resource link launch request. It includes standard JWT claims and LTI-specific claims for roles, context, resource link details, tool platform information, and launch presentation.

```json
{
  "iss": "https://platform.example.edu",
  "sub": "a6d5c443-1f51-4783-ba1a-7686ffe3b54a",
  "aud": ["962fa4d8-bcbf-49a0-94b2-2de05ad274af"],
  "exp": 1510185728,
  "iat": 1510185228,
  "azp": "962fa4d8-bcbf-49a0-94b2-2de05ad274af",
  "nonce": "fc5fdc6d-5dd6-47f4-b2c9-5d1216e9b771",
  "name": "Ms Jane Marie Doe",
  "given_name": "Jane",
  "family_name": "Doe",
  "middle_name": "Marie",
  "picture": "https://platform.example.edu/jane.jpg",
  "email": "jane@platform.example.edu",
  "locale": "en-US",
  "https://purl.imsglobal.org/spec/lti/claim/deployment_id":
    "07940580-b309-415e-a37c-914d387c1150",
  "https://purl.imsglobal.org/spec/lti/claim/message_type": "LtiResourceLinkRequest",
  "https://purl.imsglobal.org/spec/lti/claim/version": "1.3.0",
  "https://purl.imsglobal.org/spec/lti/claim/roles": [
    "http://purl.imsglobal.org/vocab/lis/v2/institution/person#Student",
    "http://purl.imsglobal.org/vocab/lis/v2/membership#Learner",
    "http://purl.imsglobal.org/vocab/lis/v2/membership#Mentor"
  ],
  "https://purl.imsglobal.org/spec/lti/claim/role_scope_mentor": [
    "fad5fb29-a91c-770-3c110-1e687120efd9",
    "5d7373de-c76c-e2b-01214-69e487e2bd33",
    "d779cfd4-bc7b-019-9bf1a-04bf1915d4d0"
  ],
  "https://purl.imsglobal.org/spec/lti/claim/context": {
      "id": "c1d887f0-a1a3-4bca-ae25-c375edcc131a",
      "label": "ECON 1010",
      "title": "Economics as a Social Science",
      "type": ["http://purl.imsglobal.org/vocab/lis/v2/course#CourseOffering"]
  },
  "https://purl.imsglobal.org/spec/lti/claim/resource_link": {
      "id": "200d101f-2c14-434a-a0f3-57c2a42369fd",
      "description": "Assignment to introduce who you are",
      "title": "Introduction Assignment"
  },
  "https://purl.imsglobal.org/spec/lti/claim/tool_platform": {
      "guid": "ex/48bbb541-ce55-456e-8b7d-ebc59a38d435",
      "contact_email": "support@platform.example.edu",
      "description": "An Example Tool Platform",
      "name": "Example Tool Platform",
      "url": "https://platform.example.edu",
      "product_family_code": "ExamplePlatformVendor-Product",
      "version": "1.0"
  },
  "https://purl.imsglobal.org/spec/lti/claim/target_link_uri":
      "https://tool.example.com/lti/48320/ruix8782rs",
  "https://purl.imsglobal.org/spec/lti/claim/launch_presentation": {
      "document_target": "iframe",
      "height": 320,
      "width": 240,
      "return_url": "https://platform.example.edu/terms/201601/courses/7/sections/1/resources/2"
  },
  "https://purl.imsglobal.org/spec/lti/claim/custom": {
    "xstart": "2017-04-21T01:00:00Z",
    "request_url": "https://tool.com/link/123"
  },
  "https://purl.imsglobal.org/spec/lti/claim/lis": {
      "person_sourcedid": "example.edu:71ee7e42-f6d2-414a-80db-b69ac2defd4",
      "course_offering_sourcedid": "example.edu:SI182-F16",
      "course_section_sourcedid": "example.edu:SI182-001-F16"
  },
  "http://www.ExamplePlatformVendor.com/session": {
      "id": "89023sj890dju080"
}


}
```

--------------------------------

### LTI 1.3 User ID (Subject Claim)

Source: https://www.imsglobal.org/spec/lti/v1p3/impl

Example of the user identifier within the 'sub' claim in LTI 1.3.

```json
{
  "sub": "4676-8317-719e225aacdd"
}
```