All API calls can fail with network errors, rate limits (429), validation errors (422), or authentication errors (401). Always handle errors in production code:

# Check HTTP status code in response
response=$(curl -s -w "\n%{http_code}" \
  -X POST "https://api.telnyx.com/v2/messages" \
  -H "Authorization: Bearer $TELNYX_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"to": "+13125550001", "from": "+13125550002", "text": "Hello"}')

http_code=$(echo "$response" | tail -1)
body=$(echo "$response" | sed '$d')

case $http_code in
  2*) echo "Success: $body" ;;
  422) echo "Validation error — check required fields and formats" ;;
  429) echo "Rate limited — retry after delay"; sleep 1 ;;
  401) echo "Authentication failed — check TELNYX_API_KEY" ;;
  *)   echo "Error $http_code: $body" ;;
esac

Common error codes: 401 invalid API key, 403 insufficient permissions, 404 resource not found, 422 validation error (check field formats), 429 rate limited (retry with exponential backoff).

Get Enum

GET /10dlc/enum/{endpoint}

curl -H "Authorization: Bearer $TELNYX_API_KEY" "https://api.telnyx.com/v2/10dlc/enum/{endpoint}"

Retrieve Black Box Test Results

Returns the results of the various black box tests

GET /seti/black_box_test_results

curl -H "Authorization: Bearer $TELNYX_API_KEY" "https://api.telnyx.com/v2/seti/black_box_test_results"

Returns: black_box_tests (array[object]), product (string), record_type (string)

telnyx-seti-curl

Telnyx Seti - curl

Installation

Setup

Error Handling