| Client { |
| n1: circle label:"Start" |
| n2: rectangle label:"Send API request" |
| n3: rectangle label:"Receive response" |
| n4: circle label:"End" |
| n1.handle(right) -> n2.handle(left) |
| n2.handle(bottom) -> Gateway.n5.handle(top) [label="HTTP Request"] |
| n3.handle(right) -> n4.handle(left) |
| } |
| Gateway { |
| n5: rectangle label:"Receive incoming request" |
| n6: rectangle label:"Validate API key" |
| n7: diamond label:"Authenticated?" |
| n8: rectangle label:"Check rate limits" |
| n9: rectangle label:"Return 401 Unauthorized" |
| n10: diamond label:"Within rate limit?" |
| n11: rectangle label:"Route to service" |
| n12: rectangle label:"Return 429 Too Many Requests" |
| n13: rectangle label:"Transform response" |
| n5.handle(right) -> n6.handle(left) |
| n6.handle(right) -> n7.handle(left) |
| n7.handle(right) -> n8.handle(left) [label="Yes"] |
| n7.handle(bottom) -> n9.handle(top) [label="No"] |
| n8.handle(right) -> n10.handle(left) |
| n9.handle(top) -> Client.n3.handle(bottom) [label="401"] |
| n10.handle(right) -> n11.handle(left) [label="Yes"] |
| n10.handle(bottom) -> n12.handle(top) [label="No"] |
| n11.handle(bottom) -> Backend.n14.handle(top) [label="Forward"] |
| n12.handle(top) -> Client.n3.handle(bottom) [label="429"] |
| n13.handle(top) -> Client.n3.handle(bottom) [label="Response"] |
| } |
| Backend { |
| n14: rectangle label:"Process request" |
| n15: diamond label:"Request valid?" |
| n16: rectangle label:"Execute business logic" |
| n17: rectangle label:"Return error response" |
| n18: rectangle label:"Return success response" |
| n14.handle(right) -> n15.handle(left) |
| n15.handle(right) -> n16.handle(left) [label="Yes"] |
| n15.handle(bottom) -> n17.handle(top) [label="No"] |
| n16.handle(right) -> n18.handle(left) |
| n17.handle(top) -> Gateway.n13.handle(bottom) [label="Error"] |
| n18.handle(top) -> Gateway.n13.handle(bottom) [label="Success"] |
| } |
|
|
