API invocation related issues - Uptick Service Documentation

When using the API open platform, developers may encounter various common problems. The following are some common problems and their solutions to help you use the API more efficiently.

1. Authentication failure

Problem description: When calling the API, a 401 Unauthorized error occurs, indicating authentication failure.
Reason: It may be that the API key or access token is incorrect, or the authentication information is not set correctly.
Solution:
Ensure that the API key is correct and has not expired or been revoked.
Check whether the key is placed in the correct request header.
Confirm that the account has permission to access the API.

2. Request frequency limited

Problem description: When calling the API, a 429 Too Many Requests error is received, indicating that the request frequency exceeds the limit.
Reason: Exceeded the request frequency limit set by the platform.
Solution:
Check the API documentation to understand the frequency limit of the current service.
Implement rate limiting on requests (such as setting delays or making batch requests).
Consider upgrading the API level to obtain a higher request quota.

3. Response data parsing error

Problem description: The data returned by the API cannot be parsed normally, perhaps the format does not meet expectations.
Reason: The data format returned by the API may have changed, or the returned JSON data is not processed correctly.
Solution:
Check the API documentation to ensure that the parsed fields match the returned data structure.
Use try-catch or other error tolerance handling to catch parsing errors.
Update the code to adapt to the new data format and ensure correct data conversion.

4. Incorrect request parameters

Problem description: The API returns a 400 Bad Request error, indicating that the request parameters are incorrect.
Reason: Missing, incorrect, or incorrect format of request parameters.
Solution:
Read the API documentation carefully to ensure that all required parameters are included and the parameter format meets the requirements.
Check whether the JSON structure and data type of the request body are correct.
Use tools (such as Postman) to verify whether the request complies with the API specification.

5. Network timeout

Problem description: When calling the API, a network timeout occurs and data cannot be obtained.
Reason: Unstable network or slow response from the API server.
Solution:
Check the network connection to ensure a stable network environment.
If a retry mechanism is supported, try resending the request.
Set a reasonable timeout period and handle possible retry logic.

6. Unclear return status code

Problem description: The status code returned by the API is not within the common range (such as 200, 400, 401, 403, 500), making it difficult to determine where the problem lies.
Reason: Sometimes the API platform will return specific status codes to represent some more special errors.
Solution:
Check the API documentation or developer forum to find the meaning of relevant status codes.
If there is no official explanation, contact the technical support of the API platform for help.

7. Empty data returned

Problem description: The API request returns a status code of 200 successfully, but the data is empty.
Reason: The data does not meet the query conditions, or the data does not exist on the server.
Solution:
Check the query conditions to ensure that the input parameters are correct and meet the expected results.
Through logs or other tools, view the returned query information to further confirm whether there is data.

8. Signature verification failure

Problem description: The API returns a signature verification failure error and cannot be called normally.
Reason: The signature generation during the API call is incorrect. It may be that the parameter order is incorrect or the key configuration is incorrect.
Solution:
Ensure that the signature algorithm is consistent with the API requirements.
Check whether the order and key of signature calculation are correct.
Refer to the API documentation to ensure that the correct signature parameters and methods are used.

9. Cross-origin requests blocked

Problem description: When calling the API on the front end, the browser blocks cross-origin requests.
Reason: The API server does not set the CORS header that allows cross-origin, resulting in blocked requests.
Solution:
If you can control the API server, add a CORS header (Access-Control-Allow-Origin).
If you cannot control it, you can try using a proxy server to solve the cross-domain problem.

10. API service unavailable

Problem description: A 503 Service Unavailable error occurs when requesting, and the API service is temporarily unavailable.
Reason: API server maintenance or overload.
Solution:
Check the status page of the API platform to see if it is under maintenance.
Wait for a while and retry, or contact the support team to confirm the service status.
These problems and their solutions can help you find solutions more quickly when encountering API call problems.