This library is under construction. See #25 to know the progress.
A Nginx module which tries to implement proxy wasm ABI in Nginx. The Wasm integration of Apache APISIX is powered by this module.
- Download the wasmtime C API package and rename it to
wasmtime-c-api/, with the./install-wasmtime.sh. Remember to add thewasmtime-c-api/libto the library search path when you build Nginx, for instance,
export wasmtime_prefix=/path/to/wasm-nginx-module/wasmtime-c-api
./configure ... \
--with-ld-opt="-Wl,-rpath,${wasmtime_prefix}/lib" \
- Download WasmEdge with the
./install-wasmedge.sh. Remember to add thewasmedge/libto the library search path when you build Nginx, for instance,
export wasmedge_prefix=/path/to/wasm-nginx-module/wasmedge
./configure ... \
--with-ld-opt="-Wl,-rpath,${wasmedge_prefix}/lib" \
syntax: wasm_vm wasmtime|wasmedge
default: -
context: http
Select the Wasm VM. Currently, only wasmtime and WasmEdge are supported. If the directive is not set, the Wasm VM won't be enabled.
Remember to set the wasm_vm directive!
syntax: plugin, err = proxy_wasm.load(name, path)
Load a .wasm file from the filesystem and return a Wasm plugin.
local plugin, err = proxy_wasm.load("plugin","t/testdata/plugin_lifecycle/main.go.wasm")
syntax: plugin_ctx, err = proxy_wasm.on_configure(plugin, conf)
Create a plugin ctx with the given plugin and conf.
local plugin, err = proxy_wasm.load("plugin","t/testdata/plugin_lifecycle/main.go.wasm") if not plugin then ngx.log(ngx.ERR, "failed to load wasm ", err) return end local ctx, err = wasm.on_configure(plugin, '{"body":512}') if not ctx then ngx.log(ngx.ERR, "failed to create plugin ctx ", err) return end
syntax: ok, err = proxy_wasm.on_http_request_headers(plugin_ctx)
Run the HTTP request headers filter in the plugin of the given plugin ctx.
local plugin, err = proxy_wasm.load("plugin","t/testdata/plugin_lifecycle/main.go.wasm") if not plugin then ngx.log(ngx.ERR, "failed to load wasm ", err) return end local ctx, err = wasm.on_configure(plugin, '{"body":512}') if not ctx then ngx.log(ngx.ERR, "failed to create plugin ctx ", err) return end assert(wasm.on_http_request_headers(ctx))
syntax: ok, err = proxy_wasm.on_http_request_body(plugin_ctx, body, end_of_body)
Run the HTTP request body filter in the plugin of the given plugin ctx.
local plugin, err = proxy_wasm.load("plugin","t/testdata/plugin_lifecycle/main.go.wasm") if not plugin then ngx.log(ngx.ERR, "failed to load wasm ", err) return end local ctx, err = wasm.on_configure(plugin, '{"body":512}') if not ctx then ngx.log(ngx.ERR, "failed to create plugin ctx ", err) return end -- get_body is a utility method to get the whole request body local body = request.get_body() -- if the body is not the whole request body, for example, it comes from -- lua-resty-upload, remember to set end_of_body to false assert(wasm.on_http_request_body(ctx, body, true))
syntax: ok, err = proxy_wasm.on_http_response_headers(plugin_ctx)
Run the HTTP response headers filter in the plugin of the given plugin ctx.
local plugin, err = proxy_wasm.load("plugin","t/testdata/http_lifecycle/main.go.wasm") if not plugin then ngx.log(ngx.ERR, "failed to load wasm ", err) return end local ctx, err = wasm.on_configure(plugin, '{"body":512}') if not ctx then ngx.log(ngx.ERR, "failed to create plugin ctx ", err) return end assert(wasm.on_http_response_headers(ctx))
syntax: ok, err = proxy_wasm.on_http_response_body(plugin_ctx)
Run the HTTP response body filter in the plugin of the given plugin ctx.
This method need to be called in body_filter_by_lua phase and may be run
multiple times.
local plugin, err = proxy_wasm.load("plugin","t/testdata/http_lifecycle/main.go.wasm") if not plugin then ngx.log(ngx.ERR, "failed to load wasm ", err) return end local ctx, err = wasm.on_configure(plugin, '{"body":512}') if not ctx then ngx.log(ngx.ERR, "failed to create plugin ctx ", err) return end assert(wasm.on_http_response_body(ctx))
Implemented proxy-wasm ABI can be found in proxy_wasm_abi.