Error Handling

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Error and Error Handling

chpter. uses conventional HTTP response codes to indicate the success or failure of an API request.

In general: Codes in the 2xx range indicate success. Codes in the 4xx range indicate an error that failed given the information provided (e.g., a required parameter was omitted, a charge failed, etc.). Codes in the 5xx range indicate an error with the chpter. servers which are rare.

Some 4xx errors that could be handled programmatically (e.g., a payment is declined) and also include an error code that briefly explains the error reported.

Our Client libraries raise exceptions for many reasons, such as a failed checkout, invalid parameters, authentication errors, and network unavailability. We recommend writing code that gracefully handles all possible API exceptions.

Error
What
200 - OK
Everything worked as expected.
400 - Bad Request
The request was unacceptable, often due to missing a required parameter.
402 - Request Failed
The parameters were valid but the request failed.
403 - Forbidden
The API key doesn't have permissions to perform the request.
404 - Not Found
The requested resource doesn't exist
409 - Conflict
The request conflicts with another request (perhaps due to using the same idempotent key).
429 - Too Many Requests
Too many requests hit the API too quickly. We recommend an exponential backoff of your requests.
500, 502, 503, 504 - Server Errors
Something went wrong on chpter.’s end. (These are very rare).