We just got a question from one of our prospects:
"How can I implement conditional error responses in my API mocks? Specifically, I want to:
- Return an error every 100th API call
- Return an error based on system time (e.g., every 10 minutes)
- Return a normal JSON response for most requests
- Return an error response after every 1000 requests
He is a sample of how you can return an error for a single mock whenever the minute is in the 10s (10, 20, 30,...), and every 100 requests randomly return an error as well.
This is for a single mock. You can also do it for all mocks or selected mocks, depending on your requirements, with a different solution, etc., which we are happy to share.
So please share your business requirement or testing scenario you are looking for with support@trafficparrot.com
Paste this in the response body (see screenshot attached):
{{#with (now format='mm') as |currentMinute|}}
{{#with (randomInteger 1 101) as |requestId|}}
{{#if (or
(eq (math currentMinute '%' 10) "0")
(eq (math requestId '%' 100) "0")
)}}{{modifyResponse 'statusCode' 503}}
{
"error": "Service temporarily unavailable",
"details": "Error triggered by time (10 min interval) or simulated request count",
"currentMinute": {{currentMinute}},
"requestId": {{requestId}}
}
{{else}}
{
"normalResponse": "This is your regular JSON response",
"timestamp": "{{now format='yyyy-MM-dd\'T\'HH:mm:ss.SSSXXX'}}",
"requestId": {{requestId}}
}
{{/if}}
{{/with}}
{{/with}}
You can test the randomness by running:
support@support-pcs:~/tmp$ for i in {1..1000}; do echo "Request $i" && curl -v http://localhost:8081/hello >> test_random.log 2>&1 && echo -e "\n---" >> test_random.log; done
support@support-pcs:~/tmp$ grep "Service temporarily unavailable" test_random.log | wc -l
10
support@support-pcs:~/tmp$ grep -B 20 "Service temporarily unavailable" test_random.log | head -n 20
> GET /hello HTTP/1.1
> Host: localhost:8081
> User-Agent: curl/7.81.0
> Accept: */*
>
* Mark bundle as not supporting multiuse
< HTTP/1.1 503 Service Unavailable
< Matched-Stub-Id: 8c4695d4-f94e-4ba8-9793-ee5dcbfba6b5
< Matched-Stub-Name: hello-8c4695d4-f94e-4ba8-9793-ee5dcbfba6b5.json
< Content-Length: 201
< Server: Jetty(9.4.56.v20240826)
<
{ [201 bytes data]
100 201 100 201 0 0 54046 0 --:--:-- --:--:-- --:--:-- 67000
* Connection #0 to host localhost left intact
You can test the time error response by running:
support@support-pcs:~/tmp$ while true; do current_time=$(date +"%H:%M:%S"); echo "Time: $current_time" && curl -i http://localhost:8081/hello && echo -e "\n-------------------\n" && sleep 10; done
