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Add Envoy filter metadata example. #289

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merged 9 commits into from
Jan 15, 2025
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Add Envoy filter metadata example. #289

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5d7089c
chore: add metadata example
Swaagie Nov 4, 2024
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doc: adjust example
Swaagie Nov 4, 2024
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doc: add example to list
Swaagie Nov 4, 2024
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chore: implement suggestion
Swaagie Nov 28, 2024
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fix: update response and doc
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fix: add example to CI
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fix: formatting
Swaagie Dec 3, 2024
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Merge branch 'main' into metadata-example
PiotrSikora Jan 15, 2025
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review: style.
PiotrSikora Jan 15, 2025
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review: style. 
Signed-off-by: Piotr Sikora <code@piotrsikora.dev>
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PiotrSikora committed Jan 15, 2025
commit ec7ce256adf45506e005be8ba3aded00d338d957
10 changes: 6 additions & 4 deletions examples/envoy_filter_metadata/README.md
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@@ -1,6 +1,6 @@
## Proxy-Wasm plugin example: Envoy metadata

Proxy-Wasm plugin that demonstrates reading metadata set by other Envoy filters
Proxy-Wasm plugin that demonstrates reading metadata set by other Envoy filters.

### Building

Expand All @@ -17,15 +17,17 @@ and has a matching Envoy configuration.
$ docker compose up
```

Send a HTTP request to `localhost:10000` will return the configured response.
Send a HTTP request to `localhost:10000` that will return the configured response.

```sh
$ curl localhost:10000
Welcome, set the `x-custom-metadata` header to change the response!
```

Send a HTTP request to `localhost:10000` with a `x-custom-metadata` header value to get the uppercased value in the response.
The response will also set a response header `uppercased-metadata: SOME-VALUE`.
Send a HTTP request to `localhost:10000` with a `x-custom-metadata` header value to get
the uppercased value in the response.

The response will also contain a response header `uppercased-metadata: SOME-VALUE`.

```sh
$ curl localhost:10000 -H "x-custom-metadata: some-value"
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