> ## Documentation Index > Fetch the complete documentation index at: https://apidocs.paylias.xyz/llms.txt > Use this file to discover all available pages before exploring further. # Fetch Transaction > Fetch Transaction ## OpenAPI ````yaml get /api/v1/csp/payments/{payment_id}/transactions/{transaction_id} openapi: 3.1.0 info: title: Paylias API description: >- Paylias is a network that enables developers to orchestrate money movement between different financial institutions with ease and speed. The Paylias API makes it simple for financial platforms to issue virtual addresses, manage connections and exchange value by sending and receiving money. Our API is based upon REST principles, returns JSON responses, and uses standard HTTP response codes. version: 0.1.0 contact: {} servers: - url: https://sandbox.api.paylias.xyz/gateway security: [] tags: - name: API Authentication description: >- For server-to-server communication, Paylias supports authentication through JWT tokens as well as API keys. All APIs that are that deal with the `Organization` resource are authenticated using JWT tokens, while the rest of the system uses API Keys to authenticate To use a JWT token, set the Authorization header to `Bearer`. To use an API key, set a header called `X-PAYLIAS-API-KEY` and use the API key as the value. ## JWT token When making requests to Paylias from a browser, you can use JSON Web Tokens (JWT). This requires the credentials of a user that has admin access. The validity of JWT tokens issued by Paylias is 7 days. ## API key Longer lasting access tokens can be generated with fine grained permissions using the Create API key endpoint. These access tokens can be rotated, revoked and updated through the browser as well. API Keys are linked to a Namespace to allow finer access controls when dealing with API requests using long lived tokens. While account admins can take actions on API keys from the dashboard, the `X-Partner-ID` header must be set to the id of the Namespace for which the API key was originally issued against. - name: Organizations description: >- In the Paylias network, an `Organization` represents a legal entity, specifically a financial institution. It stands at the top of the system's hierarchy, overseeing sub-entities like `api keys`, `webhooks`, and `partners`. Given its financial nature, the Paylias network has certain verification processes to fulfill. When users join the Paylias dashboard, they initially receive an account in a sandboxed environment. This phase allows for familiarization without impacting the main system. Full access is granted once a member of the Paylias team validates and completes all necessary formalities for the user. For efficient management, users can either use the dashboard or APIs, with the latter requiring a valid JWT Token for secure interactions. - name: Namespace description: >- A `namespace` is a logical collection of payment addresses that are issued by an `organization`. Payment addresses issued inside a `namespace` will share a common `domain`. The domain helps identify organizations, country of issuance and other specifics around the brand, rewards and configurations. - name: Accounts - name: Validation - name: API Keys description: >- Longer lasting access tokens can be generated with fine grained permissions using the Create API key endpoint. These access tokens can be rotated, revoked and updated through the browser as well. API Keys are linked to a Namespace to allow finer access controls when dealing with API requests using long lived tokens. While account admins can take actions on API keys from the dashboard, the `X-Partner-ID` header must be set to the id of the Namespace for which the API key was originally issued against. - name: Webhooks description: >- Webhooks allow applications to communicate in real-time. When an event occurs, a webhook will deliver the event data to the application determined by the target endpoint. A webhook can be setup to be notified of all event types or specific ones. This allows your application to react to events, which is more efficient than polling an API to determine if an event has occurred. In the Paylias network, webhooks are used to communicate events related to Links and Payments. Similar to API Keys, Webhooks are created against a Namespace and thus require the `X-Partner-ID` header to be set in all requests ## Event types Here are the event types that we capture and send. This may not be a comprehensive list as we are continuing to add events to our system. | **Event Identifier** | **Description** | | --- | --- | | `link.create.resp` | A link request has been processed | | `link.propose.req` | A link request has been proposed | | `link_established` | A link has been established | | `link_update_resp` | A link has been updated | - name: Customers - name: Payments - name: Submissions - name: Admissions - name: Admission Tasks - name: Transactions - name: Settlements description: Settlement batches, partner merkle artefacts, and settlement net positions - name: Exceptions paths: /api/v1/csp/payments/{payment_id}/transactions/{transaction_id}: get: tags: - Transactions summary: Fetch Transaction description: Fetch Transaction operationId: fetchTransaction parameters: - $ref: '#/components/parameters/OrganizationIdHeader' - $ref: '#/components/parameters/PartnerIdHeader' - $ref: '#/components/parameters/PaymentIdParam' - $ref: '#/components/parameters/TransactionIdParam' responses: '200': $ref: '#/components/responses/TransactionResponse' '400': $ref: '#/components/responses/BadRequest' '401': $ref: '#/components/responses/Unauthorized' '404': $ref: '#/components/responses/NotFound' security: - apiKey: [] components: parameters: OrganizationIdHeader: name: x-org-id in: header required: true schema: type: string default: '' description: The Organization ID header used for authorization PartnerIdHeader: name: x-partner-id in: header required: true schema: type: string default: '' description: The Partner ID header used for authorization PaymentIdParam: name: payment_id in: path required: true schema: type: string example: pay_123456789 description: The unique identifier for the payment TransactionIdParam: name: transaction_id in: path required: true schema: type: string example: transaction_ct2504s20or30kh8if00 description: The unique identifier for the transaction responses: TransactionResponse: description: Response containing transaction information headers: Content-Length: $ref: '#/components/headers/ContentLengthHeader' Date: $ref: '#/components/headers/DateHeader' X-Csp-Version: $ref: '#/components/headers/CspVersionHeader' X-Partner-Id: $ref: '#/components/headers/PartnerIdHeader' X-Org-Id: $ref: '#/components/headers/OrgIdHeader' content: application/json: schema: allOf: - $ref: '#/components/schemas/StandardResponse' - type: object properties: data: $ref: '#/components/schemas/Transaction' examples: success: value: ok: true data: approval_code: '123456' created_on: '2023-08-12T08:55:04Z' initiated_on: '2023-08-12T08:55:04Z' payment_id: pay_123456789 status: 1 token: trans_123456789 transaction_id: transaction_123456789 updated_on: '2023-08-12T08:55:04Z' transaction_lines: - amount: currency: USD total: '10000' direction: TD_Credit partner_id: part_abc123 token: tline_1 transaction_id: transaction_123456789 transaction_type: TT_PAYMENT - amount: currency: USD total: '10000' direction: TD_Debit partner_id: part_xyz456 token: tline_2 transaction_id: transaction_123456789 transaction_type: TT_PAYMENT BadRequest: description: Bad request headers: Content-Length: $ref: '#/components/headers/ContentLengthHeader' Date: $ref: '#/components/headers/DateHeader' X-Csp-Version: $ref: '#/components/headers/CspVersionHeader' content: application/json: schema: allOf: - $ref: '#/components/schemas/ErrorResponse' - type: object properties: code: example: error.bad_request message: example: Invalid request parameters Unauthorized: description: Unauthorized headers: Content-Length: $ref: '#/components/headers/ContentLengthHeader' Date: $ref: '#/components/headers/DateHeader' X-Csp-Version: $ref: '#/components/headers/CspVersionHeader' content: application/json: schema: allOf: - $ref: '#/components/schemas/ErrorResponse' - type: object properties: code: example: error.unauthorized message: example: Authentication required NotFound: description: Resource not found headers: Content-Length: $ref: '#/components/headers/ContentLengthHeader' Date: $ref: '#/components/headers/DateHeader' X-Csp-Version: $ref: '#/components/headers/CspVersionHeader' content: application/json: schema: allOf: - $ref: '#/components/schemas/ErrorResponse' - type: object properties: code: example: error.not_found message: example: Requested resource not found headers: ContentLengthHeader: schema: type: string example: '256' DateHeader: schema: type: string example: Sat, 12 Aug 2023 08:55:04 GMT CspVersionHeader: schema: type: string example: gateway-csp/v1.0.0 PartnerIdHeader: schema: type: string example: part_123456789 OrgIdHeader: schema: type: string example: org_123456789 schemas: StandardResponse: type: object description: Standard response structure for successful operations properties: ok: type: boolean example: true description: Indicates if the operation was successful data: type: object description: Contains the response data Transaction: type: object description: Transaction information properties: approval_code: type: string example: '123456' description: Approval code of the transaction created_on: type: string format: date-time example: '2023-08-12T08:55:04Z' description: Creation time of the transaction initiated_on: type: string format: date-time example: '2023-08-12T08:55:04Z' description: Initiation time of the transaction payment_id: type: string example: pay_123456789 description: Payment identifier status: description: Status of the transaction type: number enum: - 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 example: 1 token: type: string example: trans_123456789 description: Transaction identifier token transaction_id: type: string example: transaction_123456789 description: Transaction identifier transaction_lines: type: array description: List of transaction lines items: $ref: '#/components/schemas/TransactionLine' updated_on: type: string format: date-time example: '2023-08-12T08:55:04Z' description: Update time of the transaction ErrorResponse: type: object description: Standard error response structure properties: code: type: string description: Error code identifying the type of error message: type: string description: Human-readable error message TransactionLine: type: object description: Transaction line information properties: amount: $ref: '#/components/schemas/Amount' direction: type: string enum: - TD_Credit - TD_Debit example: TD_Credit description: Direction of the transaction (credit/debit) partner_id: type: string example: part_123456789 description: Partner identifier token: type: string example: tline_123456789 description: Transaction line identifier token transaction_id: type: string example: transaction_123456789 description: Transaction identifier transaction_type: type: string enum: - TT_PAYMENT - TT_REFUND - TT_REVERSAL - TT_FEE example: TT_PAYMENT description: Type of the transaction Amount: type: object description: Amount information properties: currency: type: string example: USD description: Currency code total: type: string example: '100.00' description: Total amount securitySchemes: apiKey: type: apiKey name: X-PAYLIAS-API-KEY in: header ````