> ## Documentation Index > Fetch the complete documentation index at: https://docs.tessera.edstratumlabs.ai/llms.txt > Use this file to discover all available pages before exploring further. # Get apiv1variants diff ## OpenAPI ````yaml /api/openapi.json get /api/v1/variants/{variantId}/diff openapi: 3.1.0 info: title: Tessera API version: '1' servers: - url: https://tessera.edstratumlabs.ai description: Production security: [] paths: /api/v1/variants/{variantId}/diff: get: tags: - session operationId: getVariantDiff parameters: - name: variantId in: path required: true schema: type: string minLength: 1 responses: '200': description: Success content: application/json: schema: $ref: '#/components/schemas/VariantDiff' '400': description: API error content: application/json: schema: $ref: '#/components/schemas/ApiErrorBody' '401': description: API error content: application/json: schema: $ref: '#/components/schemas/ApiErrorBody' '403': description: API error content: application/json: schema: $ref: '#/components/schemas/ApiErrorBody' '404': description: API error content: application/json: schema: $ref: '#/components/schemas/ApiErrorBody' '409': description: API error content: application/json: schema: $ref: '#/components/schemas/ApiErrorBody' '429': description: API error content: application/json: schema: $ref: '#/components/schemas/ApiErrorBody' security: - bearerAuth: [] components: schemas: VariantDiff: type: object properties: variant: $ref: '#/components/schemas/LessonVariant' rows: type: array items: $ref: '#/components/schemas/VariantDiffRow' required: - variant - rows additionalProperties: false ApiErrorBody: type: object required: - error properties: error: type: object required: - code - message properties: code: type: string enum: - unauthenticated - forbidden - not-found - invalid - conflict - not-ready - ai-disabled - ai-failed - rate-limited - too-large - unsupported message: type: string details: {} LessonVariant: type: object properties: lessonId: type: string minLength: 1 masterLessonId: type: string minLength: 1 audience: $ref: '#/components/schemas/VariantAudience' title: type: string minLength: 1 minutes: type: integer minimum: 1 maximum: 240 status: type: string enum: - draft - published syncedAt: type: string minLength: 1 divergedBlocks: type: number minimum: 0 uncoveredBlocks: type: number minimum: 0 required: - lessonId - masterLessonId - audience - title - minutes - status - syncedAt - divergedBlocks - uncoveredBlocks additionalProperties: false VariantDiffRow: type: object properties: state: type: string enum: - in-sync - diverged - master-removed - new-in-master - variant-only master: anyOf: - $ref: '#/components/schemas/Block' - type: 'null' variant: anyOf: - $ref: '#/components/schemas/Block' - type: 'null' required: - state - master - variant additionalProperties: false VariantAudience: type: string enum: - plain - micro Block: anyOf: - type: object properties: id: type: string minLength: 1 lessonId: type: string minLength: 1 position: type: integer minimum: 0 maximum: 9007199254740991 origin: type: string enum: - human - ai aiState: anyOf: - type: string enum: - draft - kept - type: 'null' provenance: anyOf: - $ref: '#/components/schemas/Provenance' - type: 'null' previous: anyOf: - $ref: '#/components/schemas/BlockContent' - type: 'null' updatedAt: type: string minLength: 1 templateKey: type: - string - 'null' source: anyOf: - type: object properties: blockId: type: string minLength: 1 hash: type: string minLength: 1 required: - blockId - hash additionalProperties: false - type: 'null' type: type: string const: heading level: anyOf: - type: number const: 2 - type: number const: 3 text: type: string minLength: 1 required: - id - lessonId - position - origin - aiState - provenance - previous - updatedAt - type - level - text additionalProperties: false - type: object properties: id: type: string minLength: 1 lessonId: type: string minLength: 1 position: type: integer minimum: 0 maximum: 9007199254740991 origin: type: string enum: - human - ai aiState: anyOf: - type: string enum: - draft - kept - type: 'null' provenance: anyOf: - $ref: '#/components/schemas/Provenance' - type: 'null' previous: anyOf: - $ref: '#/components/schemas/BlockContent' - type: 'null' updatedAt: type: string minLength: 1 templateKey: type: - string - 'null' source: anyOf: - type: object properties: blockId: type: string minLength: 1 hash: type: string minLength: 1 required: - blockId - hash additionalProperties: false - type: 'null' type: type: string const: text text: type: string minLength: 1 required: - id - lessonId - position - origin - aiState - provenance - previous - updatedAt - type - text additionalProperties: false - type: object properties: id: type: string minLength: 1 lessonId: type: string minLength: 1 position: type: integer minimum: 0 maximum: 9007199254740991 origin: type: string enum: - human - ai aiState: anyOf: - type: string enum: - draft - kept - type: 'null' provenance: anyOf: - $ref: '#/components/schemas/Provenance' - type: 'null' previous: anyOf: - $ref: '#/components/schemas/BlockContent' - type: 'null' updatedAt: type: string minLength: 1 templateKey: type: - string - 'null' source: anyOf: - type: object properties: blockId: type: string minLength: 1 hash: type: string minLength: 1 required: - blockId - hash additionalProperties: false - type: 'null' type: type: string const: callout tone: type: string enum: - info - tip - warning title: type: string text: type: string required: - id - lessonId - position - origin - aiState - provenance - previous - updatedAt - type - tone - title - text additionalProperties: false - type: object properties: id: type: string minLength: 1 lessonId: type: string minLength: 1 position: type: integer minimum: 0 maximum: 9007199254740991 origin: type: string enum: - human - ai aiState: anyOf: - type: string enum: - draft - kept - type: 'null' provenance: anyOf: - $ref: '#/components/schemas/Provenance' - type: 'null' previous: anyOf: - $ref: '#/components/schemas/BlockContent' - type: 'null' updatedAt: type: string minLength: 1 templateKey: type: - string - 'null' source: anyOf: - type: object properties: blockId: type: string minLength: 1 hash: type: string minLength: 1 required: - blockId - hash additionalProperties: false - type: 'null' type: type: string const: image src: type: string minLength: 1 alt: type: string decorative: type: boolean caption: type: string required: - id - lessonId - position - origin - aiState - provenance - previous - updatedAt - type - src - alt - decorative - caption additionalProperties: false - type: object properties: id: type: string minLength: 1 lessonId: type: string minLength: 1 position: type: integer minimum: 0 maximum: 9007199254740991 origin: type: string enum: - human - ai aiState: anyOf: - type: string enum: - draft - kept - type: 'null' provenance: anyOf: - $ref: '#/components/schemas/Provenance' - type: 'null' previous: anyOf: - $ref: '#/components/schemas/BlockContent' - type: 'null' updatedAt: type: string minLength: 1 templateKey: type: - string - 'null' source: anyOf: - type: object properties: blockId: type: string minLength: 1 hash: type: string minLength: 1 required: - blockId - hash additionalProperties: false - type: 'null' type: type: string const: check question: type: string options: minItems: 2 maxItems: 6 type: array items: type: object properties: id: type: string minLength: 1 text: type: string required: - id - text additionalProperties: false correctOptionId: type: string feedbackCorrect: type: string feedbackIncorrect: type: string required: - id - lessonId - position - origin - aiState - provenance - previous - updatedAt - type - question - options - correctOptionId - feedbackCorrect - feedbackIncorrect additionalProperties: false - type: object properties: id: type: string minLength: 1 lessonId: type: string minLength: 1 position: type: integer minimum: 0 maximum: 9007199254740991 origin: type: string enum: - human - ai aiState: anyOf: - type: string enum: - draft - kept - type: 'null' provenance: anyOf: - $ref: '#/components/schemas/Provenance' - type: 'null' previous: anyOf: - $ref: '#/components/schemas/BlockContent' - type: 'null' updatedAt: type: string minLength: 1 templateKey: type: - string - 'null' source: anyOf: - type: object properties: blockId: type: string minLength: 1 hash: type: string minLength: 1 required: - blockId - hash additionalProperties: false - type: 'null' type: type: string const: document title: type: string minLength: 1 sections: minItems: 1 maxItems: 40 type: array items: type: object properties: heading: type: string minLength: 1 text: type: string minLength: 1 required: - heading - text additionalProperties: false required: - id - lessonId - position - origin - aiState - provenance - previous - updatedAt - type - title - sections additionalProperties: false - type: object properties: id: type: string minLength: 1 lessonId: type: string minLength: 1 position: type: integer minimum: 0 maximum: 9007199254740991 origin: type: string enum: - human - ai aiState: anyOf: - type: string enum: - draft - kept - type: 'null' provenance: anyOf: - $ref: '#/components/schemas/Provenance' - type: 'null' previous: anyOf: - $ref: '#/components/schemas/BlockContent' - type: 'null' updatedAt: type: string minLength: 1 templateKey: type: - string - 'null' source: anyOf: - type: object properties: blockId: type: string minLength: 1 hash: type: string minLength: 1 required: - blockId - hash additionalProperties: false - type: 'null' type: type: string const: file fileId: type: string minLength: 1 title: type: string minLength: 1 description: type: string required: - id - lessonId - position - origin - aiState - provenance - previous - updatedAt - type - fileId - title - description additionalProperties: false - type: object properties: id: type: string minLength: 1 lessonId: type: string minLength: 1 position: type: integer minimum: 0 maximum: 9007199254740991 origin: type: string enum: - human - ai aiState: anyOf: - type: string enum: - draft - kept - type: 'null' provenance: anyOf: - $ref: '#/components/schemas/Provenance' - type: 'null' previous: anyOf: - $ref: '#/components/schemas/BlockContent' - type: 'null' updatedAt: type: string minLength: 1 templateKey: type: - string - 'null' source: anyOf: - type: object properties: blockId: type: string minLength: 1 hash: type: string minLength: 1 required: - blockId - hash additionalProperties: false - type: 'null' type: type: string const: video src: type: string minLength: 1 provider: type: string enum: - youtube - vimeo - upload title: type: string minLength: 1 captionsFileId: default: null anyOf: - type: string minLength: 1 - type: 'null' transcript: type: string minutes: default: 0 type: integer minimum: 0 maximum: 600 required: - id - lessonId - position - origin - aiState - provenance - previous - updatedAt - type - src - provider - title - captionsFileId - transcript - minutes additionalProperties: false - type: object properties: id: type: string minLength: 1 lessonId: type: string minLength: 1 position: type: integer minimum: 0 maximum: 9007199254740991 origin: type: string enum: - human - ai aiState: anyOf: - type: string enum: - draft - kept - type: 'null' provenance: anyOf: - $ref: '#/components/schemas/Provenance' - type: 'null' previous: anyOf: - $ref: '#/components/schemas/BlockContent' - type: 'null' updatedAt: type: string minLength: 1 templateKey: type: - string - 'null' source: anyOf: - type: object properties: blockId: type: string minLength: 1 hash: type: string minLength: 1 required: - blockId - hash additionalProperties: false - type: 'null' type: type: string const: table caption: type: string headerRow: type: boolean rows: minItems: 1 maxItems: 200 type: array items: minItems: 1 maxItems: 20 type: array items: type: string required: - id - lessonId - position - origin - aiState - provenance - previous - updatedAt - type - caption - headerRow - rows additionalProperties: false - type: object properties: id: type: string minLength: 1 lessonId: type: string minLength: 1 position: type: integer minimum: 0 maximum: 9007199254740991 origin: type: string enum: - human - ai aiState: anyOf: - type: string enum: - draft - kept - type: 'null' provenance: anyOf: - $ref: '#/components/schemas/Provenance' - type: 'null' previous: anyOf: - $ref: '#/components/schemas/BlockContent' - type: 'null' updatedAt: type: string minLength: 1 templateKey: type: - string - 'null' source: anyOf: - type: object properties: blockId: type: string minLength: 1 hash: type: string minLength: 1 required: - blockId - hash additionalProperties: false - type: 'null' type: type: string const: scenario title: type: string minLength: 1 setting: type: string nodes: minItems: 1 maxItems: 60 type: array items: type: object properties: id: type: string minLength: 1 text: type: string minLength: 1 choices: maxItems: 6 type: array items: type: object properties: id: type: string minLength: 1 text: type: string minLength: 1 nextNodeId: type: string minLength: 1 feedback: type: string quality: type: string enum: - best - okay - poor required: - id - text - nextNodeId - feedback - quality additionalProperties: false outcome: type: string required: - id - text - choices - outcome additionalProperties: false startNodeId: type: string minLength: 1 required: - id - lessonId - position - origin - aiState - provenance - previous - updatedAt - type - title - setting - nodes - startNodeId additionalProperties: false - type: object properties: id: type: string minLength: 1 lessonId: type: string minLength: 1 position: type: integer minimum: 0 maximum: 9007199254740991 origin: type: string enum: - human - ai aiState: anyOf: - type: string enum: - draft - kept - type: 'null' provenance: anyOf: - $ref: '#/components/schemas/Provenance' - type: 'null' previous: anyOf: - $ref: '#/components/schemas/BlockContent' - type: 'null' updatedAt: type: string minLength: 1 templateKey: type: - string - 'null' source: anyOf: - type: object properties: blockId: type: string minLength: 1 hash: type: string minLength: 1 required: - blockId - hash additionalProperties: false - type: 'null' type: type: string const: link href: type: string minLength: 1 pattern: ^https?:\/\/ text: type: string minLength: 1 description: type: string required: - id - lessonId - position - origin - aiState - provenance - previous - updatedAt - type - href - text - description additionalProperties: false Provenance: type: object properties: model: type: string minLength: 1 task: type: string enum: - brief - outline - lesson-draft - block-regenerate - announcement - feedback - alt-text - rewrite - link-text - element - tutor - tutor-summary - agent - readiness-item - variant generatedAt: type: string minLength: 1 sources: type: array items: type: object properties: id: type: string minLength: 1 name: type: string minLength: 1 required: - id - name additionalProperties: false summary: type: string required: - model - task - generatedAt - sources - summary additionalProperties: false BlockContent: oneOf: - type: object properties: type: type: string const: heading level: anyOf: - type: number const: 2 - type: number const: 3 text: type: string minLength: 1 required: - type - level - text additionalProperties: false - type: object properties: type: type: string const: text text: type: string minLength: 1 required: - type - text additionalProperties: false - type: object properties: type: type: string const: callout tone: type: string enum: - info - tip - warning title: type: string text: type: string required: - type - tone - title - text additionalProperties: false - type: object properties: type: type: string const: image src: type: string minLength: 1 alt: type: string decorative: type: boolean caption: type: string required: - type - src - alt - decorative - caption additionalProperties: false - type: object properties: type: type: string const: check question: type: string options: minItems: 2 maxItems: 6 type: array items: type: object properties: id: type: string minLength: 1 text: type: string required: - id - text additionalProperties: false correctOptionId: type: string feedbackCorrect: type: string feedbackIncorrect: type: string required: - type - question - options - correctOptionId - feedbackCorrect - feedbackIncorrect additionalProperties: false - type: object properties: type: type: string const: document title: type: string minLength: 1 sections: minItems: 1 maxItems: 40 type: array items: type: object properties: heading: type: string minLength: 1 text: type: string minLength: 1 required: - heading - text additionalProperties: false required: - type - title - sections additionalProperties: false - type: object properties: type: type: string const: file fileId: type: string minLength: 1 title: type: string minLength: 1 description: type: string required: - type - fileId - title - description additionalProperties: false - type: object properties: type: type: string const: video src: type: string minLength: 1 provider: type: string enum: - youtube - vimeo - upload title: type: string minLength: 1 captionsFileId: default: null anyOf: - type: string minLength: 1 - type: 'null' transcript: type: string minutes: default: 0 type: integer minimum: 0 maximum: 600 required: - type - src - provider - title - captionsFileId - transcript - minutes additionalProperties: false - type: object properties: type: type: string const: table caption: type: string headerRow: type: boolean rows: minItems: 1 maxItems: 200 type: array items: minItems: 1 maxItems: 20 type: array items: type: string required: - type - caption - headerRow - rows additionalProperties: false - type: object properties: type: type: string const: scenario title: type: string minLength: 1 setting: type: string nodes: minItems: 1 maxItems: 60 type: array items: type: object properties: id: type: string minLength: 1 text: type: string minLength: 1 choices: maxItems: 6 type: array items: type: object properties: id: type: string minLength: 1 text: type: string minLength: 1 nextNodeId: type: string minLength: 1 feedback: type: string quality: type: string enum: - best - okay - poor required: - id - text - nextNodeId - feedback - quality additionalProperties: false outcome: type: string required: - id - text - choices - outcome additionalProperties: false startNodeId: type: string minLength: 1 required: - type - title - setting - nodes - startNodeId additionalProperties: false - type: object properties: type: type: string const: link href: type: string minLength: 1 pattern: ^https?:\/\/ text: type: string minLength: 1 description: type: string required: - type - href - text - description additionalProperties: false securitySchemes: bearerAuth: type: http scheme: bearer description: Scoped tsk_… API token or Access JWT ````