Manage course lessons

Lesson types are lecture, video, text, quiz, and assignment. A new lecture placeholder can become a video or text lesson; other established types cannot be changed. Rich text is cleaned before storage to remove unsafe markup.

Quiz and assignment arrays replace the corresponding structured question set when present. is_preview applies only to video lessons. is_published controls enrolled-customer visibility independently from the course listing visibility.

Video fields in responses are references to existing Mux or external video records. Upload lifecycle and signed playback tokens remain in the existing dashboard and preview flows.

Authorization

AuthorizationBearer <token>

Provide your SellApp API key as a bearer token.

In: header

Path Parameters

course*string

The course path parameter.

section*integer

The section path parameter.

Header Parameters

X-STORE?string

Store slug. Required for OAuth access tokens. API keys may omit it to use their current store, or the first accessible store when no current store is selected.

Request Body

application/json

TypeScript Definitions

Use the request body type in TypeScript.

title*string

Lengthlength <= 255

type*string

Value in"lecture" | "video" | "text" | "quiz" | "assignment"

content?string|null

is_preview?boolean

Preview is available only for video lessons.

is_published?boolean

assignment?

questions?array<>

Itemsitems <= 12

expected_updated_at?string

Formatdate-time

Response Body

`application/json`

curl -X POST "https://sell.app/api/v2/courses/string/sections/0/lessons" \  -H "X-STORE: launch-lab" \  -H "Content-Type: application/json" \  -d '{    "title": "Welcome",    "type": "text",    "content": "Welcome to Launch Lab.",    "is_published": false  }'

{
  "data": {
    "id": 52,
    "section_id": 51,
    "title": "Welcome",
    "content": "Welcome to Launch Lab.",
    "type": "text",
    "is_preview": false,
    "is_published": false,
    "sort_order": 1,
    "video": null,
    "attachments": [],
    "assignment": null,
    "questions": [],
    "created_at": "2026-09-01T12:00:00Z",
    "updated_at": "2026-09-01T12:00:00Z"
  }
}

{
  "type": "invalid_request_error",
  "code": "bad_request",
  "message": "The request could not be understood.",
  "status": 400,
  "param": null,
  "request_id": "01992a65-e064-71ba-b38f-902b7966a6be",
  "docs_url": "https://sell.app/docs/api/errors#bad-request"
}

{
  "type": "authentication_error",
  "code": "unauthenticated",
  "message": "Unauthenticated.",
  "status": 401,
  "param": null,
  "request_id": "01992a65-e064-71ba-b38f-902b7966a6be",
  "docs_url": "https://sell.app/docs/api/errors#unauthenticated"
}

{
  "type": "authorization_error",
  "code": "forbidden",
  "message": "This action is unauthorized.",
  "status": 403,
  "param": null,
  "request_id": "01992a65-e064-71ba-b38f-902b7966a6be",
  "docs_url": "https://sell.app/docs/api/errors#forbidden"
}

{
  "type": "not_found_error",
  "code": "resource_not_found",
  "message": "Not Found.",
  "status": 404,
  "param": null,
  "request_id": "01992a65-e064-71ba-b38f-902b7966a6be",
  "docs_url": "https://sell.app/docs/api/errors#resource-not-found"
}

{
  "type": "validation_error",
  "code": "validation_failed",
  "message": "The selected product variant id is invalid.",
  "status": 422,
  "param": "product_variant_id",
  "request_id": "01992a65-e064-71ba-b38f-902b7966a6be",
  "docs_url": "https://sell.app/docs/api/errors#validation-failed",
  "errors": {
    "product_variant_id": [
      "The selected product variant id is invalid."
    ]
  }
}

{
  "type": "rate_limit_error",
  "code": "rate_limit_exceeded",
  "message": "Too Many Attempts.",
  "status": 429,
  "param": null,
  "request_id": "01992a65-e064-71ba-b38f-902b7966a6be",
  "docs_url": "https://sell.app/docs/api/errors#rate-limit-exceeded"
}

{
  "type": "api_error",
  "code": "api_error",
  "message": "Server Error",
  "status": 500,
  "param": null,
  "request_id": "01992a65-e064-71ba-b38f-902b7966a6be",
  "docs_url": "https://sell.app/docs/api/errors#api-error"
}

Authorization

AuthorizationBearer <token>

Provide your SellApp API key as a bearer token.

In: header

Path Parameters

course*string

The course path parameter.

lesson*integer

The lesson path parameter.

Header Parameters

X-STORE?string

Store slug. Required for OAuth access tokens. API keys may omit it to use their current store, or the first accessible store when no current store is selected.

Request Body

application/json

TypeScript Definitions

Use the request body type in TypeScript.

title?string

Lengthlength <= 255

type?string

Value in"lecture" | "video" | "text" | "quiz" | "assignment"

content?string|null

is_preview?boolean

Preview is available only for video lessons.

is_published?boolean

assignment?

questions?array<>

Itemsitems <= 12

expected_updated_at?string

Formatdate-time

Response Body

`application/json`

curl -X PATCH "https://sell.app/api/v2/courses/string/lessons/0" \  -H "X-STORE: launch-lab" \  -H "Content-Type: application/json" \  -d '{    "title": "Welcome",    "is_published": false  }'

{
  "data": {
    "id": 52,
    "section_id": 51,
    "title": "Welcome",
    "content": "Choose a template and add your project details.",
    "type": "lecture",
    "is_preview": false,
    "is_published": false,
    "sort_order": 1,
    "video": null,
    "attachments": [],
    "assignment": null,
    "questions": [],
    "created_at": "2026-09-01T12:00:00Z",
    "updated_at": "2026-09-01T12:00:00Z"
  }
}

{
  "type": "invalid_request_error",
  "code": "bad_request",
  "message": "The request could not be understood.",
  "status": 400,
  "param": null,
  "request_id": "01992a65-e064-71ba-b38f-902b7966a6be",
  "docs_url": "https://sell.app/docs/api/errors#bad-request"
}

{
  "type": "authentication_error",
  "code": "unauthenticated",
  "message": "Unauthenticated.",
  "status": 401,
  "param": null,
  "request_id": "01992a65-e064-71ba-b38f-902b7966a6be",
  "docs_url": "https://sell.app/docs/api/errors#unauthenticated"
}

{
  "type": "authorization_error",
  "code": "forbidden",
  "message": "This action is unauthorized.",
  "status": 403,
  "param": null,
  "request_id": "01992a65-e064-71ba-b38f-902b7966a6be",
  "docs_url": "https://sell.app/docs/api/errors#forbidden"
}

{
  "type": "not_found_error",
  "code": "resource_not_found",
  "message": "Not Found.",
  "status": 404,
  "param": null,
  "request_id": "01992a65-e064-71ba-b38f-902b7966a6be",
  "docs_url": "https://sell.app/docs/api/errors#resource-not-found"
}

{
  "type": "validation_error",
  "code": "validation_failed",
  "message": "The selected product variant id is invalid.",
  "status": 422,
  "param": "product_variant_id",
  "request_id": "01992a65-e064-71ba-b38f-902b7966a6be",
  "docs_url": "https://sell.app/docs/api/errors#validation-failed",
  "errors": {
    "product_variant_id": [
      "The selected product variant id is invalid."
    ]
  }
}

{
  "type": "rate_limit_error",
  "code": "rate_limit_exceeded",
  "message": "Too Many Attempts.",
  "status": 429,
  "param": null,
  "request_id": "01992a65-e064-71ba-b38f-902b7966a6be",
  "docs_url": "https://sell.app/docs/api/errors#rate-limit-exceeded"
}

{
  "type": "api_error",
  "code": "api_error",
  "message": "Server Error",
  "status": 500,
  "param": null,
  "request_id": "01992a65-e064-71ba-b38f-902b7966a6be",
  "docs_url": "https://sell.app/docs/api/errors#api-error"
}

Authorization

AuthorizationBearer <token>

Provide your SellApp API key as a bearer token.

In: header

Path Parameters

course*string

The course path parameter.

lesson*integer

The lesson path parameter.

Header Parameters

X-STORE?string

Store slug. Required for OAuth access tokens. API keys may omit it to use their current store, or the first accessible store when no current store is selected.

Request Body

application/json

TypeScript Definitions

Use the request body type in TypeScript.

title?string

Lengthlength <= 255

type?string

Value in"lecture" | "video" | "text" | "quiz" | "assignment"

content?string|null

is_preview?boolean

Preview is available only for video lessons.

is_published?boolean

assignment?

questions?array<>

Itemsitems <= 12

expected_updated_at?string

Formatdate-time

Response Body

`application/json`

curl -X PUT "https://sell.app/api/v2/courses/string/lessons/0" \  -H "X-STORE: launch-lab" \  -H "Content-Type: application/json" \  -d '{    "title": "Welcome",    "is_published": false  }'

{
  "data": {
    "id": 52,
    "section_id": 51,
    "title": "Welcome",
    "content": "Choose a template and add your project details.",
    "type": "lecture",
    "is_preview": false,
    "is_published": false,
    "sort_order": 1,
    "video": null,
    "attachments": [],
    "assignment": null,
    "questions": [],
    "created_at": "2026-09-01T12:00:00Z",
    "updated_at": "2026-09-01T12:00:00Z"
  }
}

{
  "type": "invalid_request_error",
  "code": "bad_request",
  "message": "The request could not be understood.",
  "status": 400,
  "param": null,
  "request_id": "01992a65-e064-71ba-b38f-902b7966a6be",
  "docs_url": "https://sell.app/docs/api/errors#bad-request"
}

{
  "type": "authentication_error",
  "code": "unauthenticated",
  "message": "Unauthenticated.",
  "status": 401,
  "param": null,
  "request_id": "01992a65-e064-71ba-b38f-902b7966a6be",
  "docs_url": "https://sell.app/docs/api/errors#unauthenticated"
}

{
  "type": "authorization_error",
  "code": "forbidden",
  "message": "This action is unauthorized.",
  "status": 403,
  "param": null,
  "request_id": "01992a65-e064-71ba-b38f-902b7966a6be",
  "docs_url": "https://sell.app/docs/api/errors#forbidden"
}

{
  "type": "not_found_error",
  "code": "resource_not_found",
  "message": "Not Found.",
  "status": 404,
  "param": null,
  "request_id": "01992a65-e064-71ba-b38f-902b7966a6be",
  "docs_url": "https://sell.app/docs/api/errors#resource-not-found"
}

{
  "type": "validation_error",
  "code": "validation_failed",
  "message": "The selected product variant id is invalid.",
  "status": 422,
  "param": "product_variant_id",
  "request_id": "01992a65-e064-71ba-b38f-902b7966a6be",
  "docs_url": "https://sell.app/docs/api/errors#validation-failed",
  "errors": {
    "product_variant_id": [
      "The selected product variant id is invalid."
    ]
  }
}

{
  "type": "rate_limit_error",
  "code": "rate_limit_exceeded",
  "message": "Too Many Attempts.",
  "status": 429,
  "param": null,
  "request_id": "01992a65-e064-71ba-b38f-902b7966a6be",
  "docs_url": "https://sell.app/docs/api/errors#rate-limit-exceeded"
}

{
  "type": "api_error",
  "code": "api_error",
  "message": "Server Error",
  "status": 500,
  "param": null,
  "request_id": "01992a65-e064-71ba-b38f-902b7966a6be",
  "docs_url": "https://sell.app/docs/api/errors#api-error"
}

Authorization

AuthorizationBearer <token>

Provide your SellApp API key as a bearer token.

In: header

Path Parameters

course*string

The course path parameter.

lesson*integer

The lesson path parameter.

Header Parameters

X-STORE?string

Store slug. Required for OAuth access tokens. API keys may omit it to use their current store, or the first accessible store when no current store is selected.

Response Body

`application/json`

curl -X DELETE "https://sell.app/api/v2/courses/string/lessons/0" \  -H "X-STORE: launch-lab"

{
  "data": {
    "id": 52,
    "section_id": 51,
    "title": "Build your first design",
    "content": "Choose a template and add your project details.",
    "type": "lecture",
    "is_preview": false,
    "is_published": false,
    "sort_order": 1,
    "video": null,
    "attachments": [],
    "assignment": null,
    "questions": [],
    "created_at": "2026-09-01T12:00:00Z",
    "updated_at": "2026-09-01T12:00:00Z"
  }
}

{
  "type": "invalid_request_error",
  "code": "bad_request",
  "message": "The request could not be understood.",
  "status": 400,
  "param": null,
  "request_id": "01992a65-e064-71ba-b38f-902b7966a6be",
  "docs_url": "https://sell.app/docs/api/errors#bad-request"
}

{
  "type": "authentication_error",
  "code": "unauthenticated",
  "message": "Unauthenticated.",
  "status": 401,
  "param": null,
  "request_id": "01992a65-e064-71ba-b38f-902b7966a6be",
  "docs_url": "https://sell.app/docs/api/errors#unauthenticated"
}

{
  "type": "authorization_error",
  "code": "forbidden",
  "message": "This action is unauthorized.",
  "status": 403,
  "param": null,
  "request_id": "01992a65-e064-71ba-b38f-902b7966a6be",
  "docs_url": "https://sell.app/docs/api/errors#forbidden"
}

{
  "type": "not_found_error",
  "code": "resource_not_found",
  "message": "Not Found.",
  "status": 404,
  "param": null,
  "request_id": "01992a65-e064-71ba-b38f-902b7966a6be",
  "docs_url": "https://sell.app/docs/api/errors#resource-not-found"
}

{
  "type": "validation_error",
  "code": "validation_failed",
  "message": "The selected product variant id is invalid.",
  "status": 422,
  "param": "product_variant_id",
  "request_id": "01992a65-e064-71ba-b38f-902b7966a6be",
  "docs_url": "https://sell.app/docs/api/errors#validation-failed",
  "errors": {
    "product_variant_id": [
      "The selected product variant id is invalid."
    ]
  }
}

{
  "type": "rate_limit_error",
  "code": "rate_limit_exceeded",
  "message": "Too Many Attempts.",
  "status": 429,
  "param": null,
  "request_id": "01992a65-e064-71ba-b38f-902b7966a6be",
  "docs_url": "https://sell.app/docs/api/errors#rate-limit-exceeded"
}

{
  "type": "api_error",
  "code": "api_error",
  "message": "Server Error",
  "status": 500,
  "param": null,
  "request_id": "01992a65-e064-71ba-b38f-902b7966a6be",
  "docs_url": "https://sell.app/docs/api/errors#api-error"
}

Manage course lessons

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