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Update calling modes

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Alex Ellis
2017-11-08 17:54:51 +00:00
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guide/asynchronous.md
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# Guide on Asynchronous processing
By default functions are accessed synchronously via the following route:
Asynchronous function calls can be queued up using the following route:
```
$ curl --data "message" http://gateway/function/{function_name}
```
As of [PR #131](https://github.com/openfaas/faas/pull/131) asynchronous invocation is available for testing.
Summary of modes for calling functions via API Gateway:
| Mode | Method | URL | Body | Headers | Query string
| -------------|--------|------------------------------------------------|------|--------- |------------------- |
| Synchronous | POST | http://gateway/function/{function_name} | Yes | Yes | Yes |
| Synchronous | GET | http://gateway/function/{function_name} | Yes | Yes | Yes |
| Asynchronous | POST | http://gateway/async-function/{function_name} | Yes | Yes | Yes [#369](https://github.com/openfaas/faas/issues/369) |
| Asynchronous | GET | Not supported | - | - | - |
This work was carried out under [PR #131](https://github.com/openfaas/faas/pull/131).
*Logical flow for synchronous functions:*