> ## Documentation Index > Fetch the complete documentation index at: https://partner-help.letsdothis.com/llms.txt > Use this file to discover all available pages before exploring further. # Get a discount code > Returns one of your discount codes by ID, described with the same fields an import accepts. The `id` is the `discountCodeId` an import reports for the code. Codes belonging to another organizer, and deleted codes, return 404. This endpoint is restricted and not generally available: organizations that have not been enabled receive a `403`. Contact your Let's Do This representative if you'd like access. ## OpenAPI ````yaml /openapi.json get /v0/discount-codes/{id} openapi: 3.1.0 info: title: Let's Do This API version: 0.1.0 description: > The full reference — getting started, pagination, error responses, rate limits and the changelog — lives at [partner-help.letsdothis.com/api-reference](https://partner-help.letsdothis.com/api-reference/overview). This page is the interactive OpenAPI view of the same specification. # Authentication Create an API key from **Settings** → **Credentials** in your Let's Do This account and send it as a bearer token: ```bash curl --request GET \ --url "https://api.letsdothis.com/v0/participants" \ --header "Authorization: Bearer YOUR-API-KEY" ``` Keep the key secret: it identifies your organization, so do not ship it in a website or native app. If a key is exposed, revoke it from the same section and create a replacement. # OpenAPI schema Download the [OpenAPI schema](https://api.letsdothis.com/documentation/json) to use with Postman or an OpenAPI client generator. servers: - url: https://api.letsdothis.com description: Production - url: https://api.staging.letsdothis.com description: Staging security: - bearerAuth: [] tags: - name: Events x-group: Events description: Events that participants can register for. - name: EventOccurrences x-group: Event occurrences description: >- Event occurrences scoped to the organizer associated with your Public API credentials. Unlike the public Events catalog, results are limited to your own events. - name: Races x-group: Races description: >- Races within an event occurrence. An event occurrence may have one or more races, for example a 5K and a 10K within the same race day. - name: Tickets x-group: Tickets description: Tickets that are available for events. - name: BookingForms x-group: Booking forms description: >- Booking forms define the questions a booker answers when registering for a ticket. A ticket usually references a single booking form, so expect zero or one, while a booking form may be shared across multiple tickets. - name: BookingFormFields x-group: Booking form fields description: >- Booking form fields are the individual questions on a booking form — their type, label, options, and whether an answer is required. A field can be reused across multiple forms. - name: Bookings x-group: Bookings description: >- Bookings are the transaction record for a registration. A booking may contain one or more participants (entries). - name: Participant x-group: Participants description: Participants are users who successfully booked an event. - name: LineItem x-group: Line items description: Financial details related to individual items within transactions. - name: AddOns x-group: Add-ons description: >- Organizer-owned products that can be purchased and allocated to participants. Imported products retain stable external identities. - name: DiscountCodes x-group: Discount codes description: >- Discount codes participants enter at checkout to reduce the price of a booking. - name: Credits x-group: Credits description: >- Credits are balances participants can spend at checkout, identified by their email address. - name: Referrals x-group: Referrals description: >- Referral programs, the referrers registered on them, and asynchronous imports of historical referrals. - name: Application x-group: Applications description: >- Applications are created when a user applies for tickets that are set up to require an application process, such as balloted or "Good For Age" entries. - name: Partner x-group: Partners description: >- Partners that were created by the organization who can have Reserved Entries assigned to them. - name: ReservedEntries x-group: Reserved entries description: >- Reserved Entries are entries that are reserved for a partner. After being assigned, the partner can then allocate these entries to participants. - name: Timing x-group: Timing description: >- Timing providers push bib numbers and bib-pack shipments back to Let's Do This for the startlist entries they received. Available to select timing partners only. paths: /v0/discount-codes/{id}: get: tags: - DiscountCodes summary: Get a discount code description: >- Returns one of your discount codes by ID, described with the same fields an import accepts. The `id` is the `discountCodeId` an import reports for the code. Codes belonging to another organizer, and deleted codes, return 404. parameters: - schema: type: string example: '67123' in: path name: id required: true description: The ID of the resource to query by responses: '200': description: Default Response content: application/json: schema: $ref: '#/components/schemas/DiscountCode' '403': description: Forbidden content: application/json: schema: description: Forbidden type: object properties: statusCode: type: number enum: - 403 error: type: string message: type: string '404': description: Not found content: application/json: schema: description: Not found type: object properties: statusCode: type: number enum: - 404 error: type: string message: type: string components: schemas: DiscountCode: title: DiscountCode type: object properties: id: type: string description: The unique ID of the discount code. code: type: string description: The code participants enter at checkout, uppercased. group: type: string description: >- The internal code name: a free-form grouping label shown in the organizer dashboard and never seen by participants. Omitted when the code has none. description: type: string description: >- An internal description of the code, shown in the organizer dashboard. percentage: type: integer description: >- The percentage discount the code applies. Omitted for flat-rate codes. flatRate: type: integer description: >- The fixed discount the code applies, in the minor unit of the event's currency (e.g. pence, cents). maxValue: type: integer description: >- The maximum total value the code can discount, in the minor unit of the event's currency. startDate: $ref: '#/components/schemas/ISODate' expiresAt: $ref: '#/components/schemas/ISODate' firstBookingOnly: type: boolean description: Whether the code only applies to a booker's first booking. limitUsage: type: integer description: How many times the code can be used in total. limitUsagePerUser: type: integer description: How many times a single user can use the code. limitUsagePerTransaction: type: integer description: How many entries a single transaction can apply the code to. eventIds: type: array items: type: string description: >- The events the code is restricted to. Empty when it allows all of them. eventOccurrenceIds: type: array items: type: string description: >- The event occurrences the code is restricted to. Empty when it allows all of them. appliesTo: type: array items: $ref: '#/components/schemas/DiscountCodeAppliesTo' description: >- Which parts of the basket the code discounts. Omitted when the code is restricted to none of the categories this API names — an unrestricted code comes off the whole basket. appliesPer: $ref: '#/components/schemas/DiscountCodeAppliesPer' createdAt: $ref: '#/components/schemas/ISODate' required: - id - code - eventIds - eventOccurrenceIds - appliesPer additionalProperties: false description: A discount code belonging to your organizer. example: id: 661718293a4b5c6d7e8f901a code: FLEETFEET5 group: fleet-feet-2026 description: Fleet Feet post-race in-store incentive flatRate: 500 maxValue: 500 startDate: '2026-09-01T00:00:00.000Z' expiresAt: '2026-12-31T23:59:59.000Z' limitUsage: 1 limitUsagePerUser: 1 eventIds: [] eventOccurrenceIds: - '21111177799' appliesTo: - TICKETS appliesPer: TRANSACTION createdAt: '2026-08-01T09:15:00.000Z' ISODate: title: ISODate type: string description: >- Represents a date and time in ISO 8601 format as a string. The string should follow the format `YYYY-MM-DDTHH:mm:ss.sssZ`, where: - `YYYY`: Four-digit year - `MM`: Two-digit month (01-12) - `DD`: Two-digit day of the month (01-31) - `T`: Delimiter indicating the start of the time component - `HH`: Two-digit hour in 24-hour format (00-23) - `mm`: Two-digit minutes (00-59) - `ss.sss`: Seconds with milliseconds (00.000-59.999) - `Z`: UTC timezone designator **Example:** To represent 11:30 AM on May 8th, 2026, the value would be: `"2026-05-08T11:30:00.000Z"`. example: '2026-05-08T11:30:00.000Z' DiscountCodeAppliesTo: title: DiscountCodeAppliesTo type: string enum: - TICKETS - BOOKING_FEE - MERCH_AND_ADDONS - FORM_ITEMS - MEMBERSHIPS description: >- The part of the basket a discount code applies to. These are the same categories the organizer dashboard offers, so a code created through the API and one created in the dashboard describe themselves the same way. `MERCH_AND_ADDONS` covers every merchandise and add-on category; `FORM_ITEMS` covers the remaining booking form items. DiscountCodeAppliesPer: title: DiscountCodeAppliesPer type: string enum: - TRANSACTION - ENTRY description: >- How often a discount code comes off a basket. These are the same two options the organizer dashboard offers as its discount type. `TRANSACTION` discounts the basket once, however many entries it holds. `ENTRY` discounts each participant's entry separately, so a basket of three entries is discounted three times. securitySchemes: bearerAuth: type: http scheme: bearer bearerFormat: JWT ````