diff --git a/.gitignore b/.gitignore
index c8b5e0fe..70cc5175 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 function-runner-*.gz*
 target/
+tmp/
 .DS_Store
\ No newline at end of file
diff --git a/Cargo.lock b/Cargo.lock
index 035b4bb6..4c65b7d3 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -160,6 +160,12 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "atomic-waker"
+version = "1.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1505bd5d3d116872e7271a6d4e16d81d0c8570876c8de68093a09ac269d8aac0"
+
 [[package]]
 name = "autocfg"
 version = "1.4.0"
@@ -187,6 +193,12 @@ version = "0.21.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9d297deb1925b89f2ccc13d7635fa0714f12c87adce1c75356b39ca9b7178567"
 
+[[package]]
+name = "base64"
+version = "0.22.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "72b3254f16251a8381aa12e40e3c4d2f0199f8c6508fbecb9d91f575e0fbb8c6"
+
 [[package]]
 name = "beef"
 version = "0.5.2"
@@ -267,9 +279,9 @@ dependencies = [
 
 [[package]]
 name = "bumpalo"
-version = "3.16.0"
+version = "3.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "79296716171880943b8470b5f8d03aa55eb2e645a4874bdbb28adb49162e012c"
+checksum = "46c5e41b57b8bba42a04676d81cb89e9ee8e859a1a66f80a5a72e1cb76b34d43"
 dependencies = [
  "allocator-api2",
 ]
@@ -365,9 +377,9 @@ dependencies = [
 
 [[package]]
 name = "cc"
-version = "1.2.4"
+version = "1.2.32"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9157bbaa6b165880c27a4293a474c91cdcf265cc68cc829bf10be0964a391caf"
+checksum = "2352e5597e9c544d5e6d9c95190d5d27738ade584fa8db0a16e130e5c2b5296e"
 dependencies = [
  "jobserver",
  "libc",
@@ -441,6 +453,16 @@ dependencies = [
  "windows-sys 0.59.0",
 ]
 
+[[package]]
+name = "core-foundation"
+version = "0.9.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "91e195e091a93c46f7102ec7818a2aa394e1e1771c3ab4825963fa03e45afb8f"
+dependencies = [
+ "core-foundation-sys",
+ "libc",
+]
+
 [[package]]
 name = "core-foundation-sys"
 version = "0.8.7"
@@ -655,7 +677,7 @@ dependencies = [
  "cap-primitives",
  "rand_core",
  "rand_pcg",
- "wasi",
+ "wasi 0.11.0+wasi-snapshot-preview1",
  "wasmtime",
  "wasmtime-wasi",
 ]
@@ -734,10 +756,6 @@ version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fea41bba32d969b513997752735605054bc0dfa92b4c56bf1189f2e174be7a10"
 
-[[package]]
-name = "echo"
-version = "0.1.0"
-
 [[package]]
 name = "either"
 version = "1.15.0"
@@ -827,6 +845,16 @@ dependencies = [
  "windows-sys 0.59.0",
 ]
 
+[[package]]
+name = "flate2"
+version = "1.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4a3d7db9596fecd151c5f638c0ee5d5bd487b6e0ea232e5dc96d5250f6f94b1d"
+dependencies = [
+ "crc32fast",
+ "miniz_oxide",
+]
+
 [[package]]
 name = "float-cmp"
 version = "0.10.0"
@@ -848,6 +876,21 @@ version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d9c4f5dac5e15c24eb999c26181a6ca40b39fe946cbe4c263c7209467bc83af2"
 
+[[package]]
+name = "foreign-types"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f6f339eb8adc052cd2ca78910fda869aefa38d22d5cb648e6485e4d3fc06f3b1"
+dependencies = [
+ "foreign-types-shared",
+]
+
+[[package]]
+name = "foreign-types-shared"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "00b0228411908ca8685dba7fc2cdd70ec9990a6e753e89b6ac91a84c40fbaf4b"
+
 [[package]]
 name = "form_urlencoded"
 version = "1.2.1"
@@ -887,6 +930,7 @@ dependencies = [
  "rust-embed",
  "serde",
  "serde_json",
+ "test-utils",
  "wasmprof",
  "wasmtime",
  "wasmtime-wasi",
@@ -947,10 +991,13 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9fa08315bb612088cc391249efdc3bc77536f16c91f6cf495e6fbe85b20a4a81"
 dependencies = [
  "futures-core",
+ "futures-io",
  "futures-sink",
  "futures-task",
+ "memchr",
  "pin-project-lite",
  "pin-utils",
+ "slab",
 ]
 
 [[package]]
@@ -993,7 +1040,19 @@ checksum = "c4567c8db10ae91089c99af84c68c38da3ec2f087c3f82960bcdbf3656b6f4d7"
 dependencies = [
  "cfg-if",
  "libc",
- "wasi",
+ "wasi 0.11.0+wasi-snapshot-preview1",
+]
+
+[[package]]
+name = "getrandom"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "26145e563e54f2cadc477553f1ec5ee650b00862f0a58bcd12cbdc5f0ea2d2f4"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "r-efi",
+ "wasi 0.14.2+wasi-0.2.4",
 ]
 
 [[package]]
@@ -1031,6 +1090,25 @@ dependencies = [
  "walkdir",
 ]
 
+[[package]]
+name = "h2"
+version = "0.4.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f3c0b69cfcb4e1b9f1bf2f53f95f766e4661169728ec61cd3fe5a0166f2d1386"
+dependencies = [
+ "atomic-waker",
+ "bytes",
+ "fnv",
+ "futures-core",
+ "futures-sink",
+ "http",
+ "indexmap",
+ "slab",
+ "tokio",
+ "tokio-util",
+ "tracing",
+]
+
 [[package]]
 name = "hashbrown"
 version = "0.15.2"
@@ -1053,6 +1131,124 @@ version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fbd780fe5cc30f81464441920d82ac8740e2e46b29a6fad543ddd075229ce37e"
 
+[[package]]
+name = "http"
+version = "1.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f4a85d31aea989eead29a3aaf9e1115a180df8282431156e533de47660892565"
+dependencies = [
+ "bytes",
+ "fnv",
+ "itoa",
+]
+
+[[package]]
+name = "http-body"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1efedce1fb8e6913f23e0c92de8e62cd5b772a67e7b3946df930a62566c93184"
+dependencies = [
+ "bytes",
+ "http",
+]
+
+[[package]]
+name = "http-body-util"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b021d93e26becf5dc7e1b75b1bed1fd93124b374ceb73f43d4d4eafec896a64a"
+dependencies = [
+ "bytes",
+ "futures-core",
+ "http",
+ "http-body",
+ "pin-project-lite",
+]
+
+[[package]]
+name = "httparse"
+version = "1.10.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6dbf3de79e51f3d586ab4cb9d5c3e2c14aa28ed23d180cf89b4df0454a69cc87"
+
+[[package]]
+name = "hyper"
+version = "1.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cc2b571658e38e0c01b1fdca3bbbe93c00d3d71693ff2770043f8c29bc7d6f80"
+dependencies = [
+ "bytes",
+ "futures-channel",
+ "futures-util",
+ "h2",
+ "http",
+ "http-body",
+ "httparse",
+ "itoa",
+ "pin-project-lite",
+ "smallvec",
+ "tokio",
+ "want",
+]
+
+[[package]]
+name = "hyper-rustls"
+version = "0.27.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e3c93eb611681b207e1fe55d5a71ecf91572ec8a6705cdb6857f7d8d5242cf58"
+dependencies = [
+ "http",
+ "hyper",
+ "hyper-util",
+ "rustls",
+ "rustls-pki-types",
+ "tokio",
+ "tokio-rustls",
+ "tower-service",
+]
+
+[[package]]
+name = "hyper-tls"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "70206fc6890eaca9fde8a0bf71caa2ddfc9fe045ac9e5c70df101a7dbde866e0"
+dependencies = [
+ "bytes",
+ "http-body-util",
+ "hyper",
+ "hyper-util",
+ "native-tls",
+ "tokio",
+ "tokio-native-tls",
+ "tower-service",
+]
+
+[[package]]
+name = "hyper-util"
+version = "0.1.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8d9b05277c7e8da2c93a568989bb6207bef0112e8d17df7a6eda4a3cf143bc5e"
+dependencies = [
+ "base64 0.22.1",
+ "bytes",
+ "futures-channel",
+ "futures-core",
+ "futures-util",
+ "http",
+ "http-body",
+ "hyper",
+ "ipnet",
+ "libc",
+ "percent-encoding",
+ "pin-project-lite",
+ "socket2 0.6.0",
+ "system-configuration",
+ "tokio",
+ "tower-service",
+ "tracing",
+ "windows-registry",
+]
+
 [[package]]
 name = "iana-time-zone"
 version = "0.1.61"
@@ -1270,6 +1466,16 @@ version = "2.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ddc24109865250148c2e0f3d25d4f0f479571723792d3802153c60922a4fb708"
 
+[[package]]
+name = "iri-string"
+version = "0.7.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dbc5ebe9c3a1a7a5127f920a418f7585e9e758e911d0466ed004f393b0e380b2"
+dependencies = [
+ "memchr",
+ "serde",
+]
+
 [[package]]
 name = "is-terminal"
 version = "0.4.16"
@@ -1342,9 +1548,9 @@ dependencies = [
 
 [[package]]
 name = "js-sys"
-version = "0.3.76"
+version = "0.3.77"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6717b6b5b077764fb5966237269cb3c64edddde4b14ce42647430a78ced9e7b7"
+checksum = "1cfaf33c695fc6e08064efbc1f72ec937429614f25eef83af942d0e227c3a28f"
 dependencies = [
  "once_cell",
  "wasm-bindgen",
@@ -1370,9 +1576,9 @@ checksum = "09edd9e8b54e49e587e4f6295a7d29c3ea94d469cb40ab8ca70b288248a81db2"
 
 [[package]]
 name = "libc"
-version = "0.2.168"
+version = "0.2.175"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5aaeb2981e0606ca11d79718f8bb01164f1d6ed75080182d3abf017e6d244b6d"
+checksum = "6a82ae493e598baaea5209805c49bbf2ea7de956d50d7da0da1164f9c6d28543"
 
 [[package]]
 name = "libm"
@@ -1500,11 +1706,17 @@ dependencies = [
  "rmpv",
 ]
 
+[[package]]
+name = "mime"
+version = "0.3.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6877bb514081ee2a7ff5ef9de3281f14a4dd4bceac4c09388074a6b5df8a139a"
+
 [[package]]
 name = "miniz_oxide"
-version = "0.8.1"
+version = "0.8.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a2ef2593ffb6958c941575cee70c8e257438749971869c4ae5acf6f91a168a61"
+checksum = "1fa76a2c86f704bdb222d66965fb3d63269ce38518b83cb0575fca855ebb6316"
 dependencies = [
  "adler2",
 ]
@@ -1516,7 +1728,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2886843bf800fba2e3377cff24abf6379b4c4d5c6681eaf9ea5b0d15090450bd"
 dependencies = [
  "libc",
- "wasi",
+ "wasi 0.11.0+wasi-snapshot-preview1",
  "windows-sys 0.52.0",
 ]
 
@@ -1535,6 +1747,23 @@ version = "0.1.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e943b2c21337b7e3ec6678500687cdc741b7639ad457f234693352075c082204"
 
+[[package]]
+name = "native-tls"
+version = "0.2.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "87de3442987e9dbec73158d5c715e7ad9072fda936bb03d19d7fa10e00520f0e"
+dependencies = [
+ "libc",
+ "log",
+ "openssl",
+ "openssl-probe",
+ "openssl-sys",
+ "schannel",
+ "security-framework",
+ "security-framework-sys",
+ "tempfile",
+]
+
 [[package]]
 name = "nix"
 version = "0.26.4"
@@ -1586,6 +1815,50 @@ version = "1.20.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1261fe7e33c73b354eab43b1273a57c8f967d0391e80353e51f764ac02cf6775"
 
+[[package]]
+name = "openssl"
+version = "0.10.73"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8505734d46c8ab1e19a1dce3aef597ad87dcb4c37e7188231769bd6bd51cebf8"
+dependencies = [
+ "bitflags 2.6.0",
+ "cfg-if",
+ "foreign-types",
+ "libc",
+ "once_cell",
+ "openssl-macros",
+ "openssl-sys",
+]
+
+[[package]]
+name = "openssl-macros"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a948666b637a0f465e8564c73e89d4dde00d72d4d473cc972f390fc3dcee7d9c"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "openssl-probe"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d05e27ee213611ffe7d6348b942e8f942b37114c00cc03cec254295a4a17852e"
+
+[[package]]
+name = "openssl-sys"
+version = "0.9.109"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "90096e2e47630d78b7d1c20952dc621f957103f8bc2c8359ec81290d75238571"
+dependencies = [
+ "cc",
+ "libc",
+ "pkg-config",
+ "vcpkg",
+]
+
 [[package]]
 name = "paste"
 version = "1.0.15"
@@ -1705,6 +1978,12 @@ dependencies = [
  "proc-macro2",
 ]
 
+[[package]]
+name = "r-efi"
+version = "5.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "69cdb34c158ceb288df11e18b4bd39de994f6657d83847bdffdbd7f346754b0f"
+
 [[package]]
 name = "rand"
 version = "0.8.5"
@@ -1732,7 +2011,7 @@ version = "0.6.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ec0be4795e2f6a28069bec0b5ff3e2ac9bafc99e6a9a7dc3547996c5c816922c"
 dependencies = [
- "getrandom",
+ "getrandom 0.2.15",
 ]
 
 [[package]]
@@ -1770,9 +2049,9 @@ version = "0.4.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ba009ff324d1fc1b900bd1fdb31564febe58a8ccc8a6fdbb93b543d33b13ca43"
 dependencies = [
- "getrandom",
+ "getrandom 0.2.15",
  "libredox",
- "thiserror",
+ "thiserror 1.0.69",
 ]
 
 [[package]]
@@ -1818,6 +2097,62 @@ version = "0.8.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2b15c43186be67a4fd63bee50d0303afffcef381492ebe2c5d87f324e1b8815c"
 
+[[package]]
+name = "reqwest"
+version = "0.12.23"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d429f34c8092b2d42c7c93cec323bb4adeb7c67698f70839adec842ec10c7ceb"
+dependencies = [
+ "base64 0.22.1",
+ "bytes",
+ "encoding_rs",
+ "futures-channel",
+ "futures-core",
+ "futures-util",
+ "h2",
+ "http",
+ "http-body",
+ "http-body-util",
+ "hyper",
+ "hyper-rustls",
+ "hyper-tls",
+ "hyper-util",
+ "js-sys",
+ "log",
+ "mime",
+ "native-tls",
+ "percent-encoding",
+ "pin-project-lite",
+ "rustls-pki-types",
+ "serde",
+ "serde_json",
+ "serde_urlencoded",
+ "sync_wrapper",
+ "tokio",
+ "tokio-native-tls",
+ "tower",
+ "tower-http",
+ "tower-service",
+ "url",
+ "wasm-bindgen",
+ "wasm-bindgen-futures",
+ "web-sys",
+]
+
+[[package]]
+name = "ring"
+version = "0.17.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a4689e6c2294d81e88dc6261c768b63bc4fcdb852be6d1352498b114f61383b7"
+dependencies = [
+ "cc",
+ "cfg-if",
+ "getrandom 0.2.15",
+ "libc",
+ "untrusted",
+ "windows-sys 0.52.0",
+]
+
 [[package]]
 name = "rmp"
 version = "0.8.14"
@@ -1933,6 +2268,39 @@ dependencies = [
  "windows-sys 0.59.0",
 ]
 
+[[package]]
+name = "rustls"
+version = "0.23.31"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c0ebcbd2f03de0fc1122ad9bb24b127a5a6cd51d72604a3f3c50ac459762b6cc"
+dependencies = [
+ "once_cell",
+ "rustls-pki-types",
+ "rustls-webpki",
+ "subtle",
+ "zeroize",
+]
+
+[[package]]
+name = "rustls-pki-types"
+version = "1.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "229a4a4c221013e7e1f1a043678c5cc39fe5171437c88fb47151a21e6f5b5c79"
+dependencies = [
+ "zeroize",
+]
+
+[[package]]
+name = "rustls-webpki"
+version = "0.103.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0a17884ae0c1b773f1ccd2bd4a8c72f16da897310a98b0e84bf349ad5ead92fc"
+dependencies = [
+ "ring",
+ "rustls-pki-types",
+ "untrusted",
+]
+
 [[package]]
 name = "rustversion"
 version = "1.0.18"
@@ -1954,6 +2322,38 @@ dependencies = [
  "winapi-util",
 ]
 
+[[package]]
+name = "schannel"
+version = "0.1.27"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1f29ebaa345f945cec9fbbc532eb307f0fdad8161f281b6369539c8d84876b3d"
+dependencies = [
+ "windows-sys 0.59.0",
+]
+
+[[package]]
+name = "security-framework"
+version = "2.11.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "897b2245f0b511c87893af39b033e5ca9cce68824c4d7e7630b5a1d339658d02"
+dependencies = [
+ "bitflags 2.6.0",
+ "core-foundation",
+ "core-foundation-sys",
+ "libc",
+ "security-framework-sys",
+]
+
+[[package]]
+name = "security-framework-sys"
+version = "2.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "49db231d56a190491cb4aeda9527f1ad45345af50b0851622a7adb8c03b01c32"
+dependencies = [
+ "core-foundation-sys",
+ "libc",
+]
+
 [[package]]
 name = "semver"
 version = "1.0.24"
@@ -2010,6 +2410,18 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "serde_urlencoded"
+version = "0.7.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d3491c14715ca2294c4d6a88f15e84739788c1d030eed8c110436aafdaa2f3fd"
+dependencies = [
+ "form_urlencoded",
+ "itoa",
+ "ryu",
+ "serde",
+]
+
 [[package]]
 name = "sha2"
 version = "0.10.8"
@@ -2036,6 +2448,45 @@ version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0fda2ff0d084019ba4d7c6f371c95d8fd75ce3524c3cb8fb653a3023f6323e64"
 
+[[package]]
+name = "shopify_function_provider"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1eb4e60eb2f8c6e02b1f1e7634ef91738b1104b5bc2fa30458d10cd00917dbbf"
+dependencies = [
+ "bumpalo",
+ "rmp",
+ "shopify_function_wasm_api_core",
+]
+
+[[package]]
+name = "shopify_function_wasm_api"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a57a2e64ef7d28cbe26bf591fd084093327d9d359e38355010720d818cd92ba9"
+dependencies = [
+ "rmp-serde",
+ "serde_json",
+ "shopify_function_provider",
+ "shopify_function_wasm_api_core",
+ "thiserror 2.0.14",
+]
+
+[[package]]
+name = "shopify_function_wasm_api_core"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4842376f01b3abe6c78596085f29ea0d1b605873d2855f812738072c38e32c34"
+dependencies = [
+ "strum",
+]
+
+[[package]]
+name = "slab"
+version = "0.4.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7a2ae44ef20feb57a68b23d846850f861394c2e02dc425a50098ae8c90267589"
+
 [[package]]
 name = "smallvec"
 version = "1.13.2"
@@ -2055,6 +2506,16 @@ dependencies = [
  "windows-sys 0.52.0",
 ]
 
+[[package]]
+name = "socket2"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "233504af464074f9d066d7b5416c5f9b894a5862a6506e306f7b816cdd6f1807"
+dependencies = [
+ "libc",
+ "windows-sys 0.59.0",
+]
+
 [[package]]
 name = "spin_sleep"
 version = "1.3.0"
@@ -2104,6 +2565,12 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "subtle"
+version = "2.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "13c2bddecc57b384dee18652358fb23172facb8a2c51ccc10d74c157bdea3292"
+
 [[package]]
 name = "syn"
 version = "2.0.90"
@@ -2115,6 +2582,15 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "sync_wrapper"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0bf256ce5efdfa370213c1dabab5935a12e49f2c58d15e9eac2870d3b4f27263"
+dependencies = [
+ "futures-core",
+]
+
 [[package]]
 name = "synstructure"
 version = "0.13.1"
@@ -2126,6 +2602,27 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "system-configuration"
+version = "0.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3c879d448e9d986b661742763247d3693ed13609438cf3d006f51f5368a5ba6b"
+dependencies = [
+ "bitflags 2.6.0",
+ "core-foundation",
+ "system-configuration-sys",
+]
+
+[[package]]
+name = "system-configuration-sys"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e1d1b10ced5ca923a1fcb8d03e96b8d3268065d724548c0211415ff6ac6bac4"
+dependencies = [
+ "core-foundation-sys",
+ "libc",
+]
+
 [[package]]
 name = "system-interface"
 version = "0.27.3"
@@ -2150,14 +2647,14 @@ checksum = "e502f78cdbb8ba4718f566c418c52bc729126ffd16baee5baa718cf25dd5a69a"
 
 [[package]]
 name = "tempfile"
-version = "3.14.0"
+version = "3.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "28cce251fcbc87fac86a866eeb0d6c2d536fc16d06f184bb61aeae11aa4cee0c"
+checksum = "e8a64e3985349f2441a1a9ef0b853f869006c3855f2cda6862a94d26ebb9d6a1"
 dependencies = [
- "cfg-if",
  "fastrand",
+ "getrandom 0.3.3",
  "once_cell",
- "rustix 0.38.44",
+ "rustix 1.0.5",
  "windows-sys 0.59.0",
 ]
 
@@ -2176,13 +2673,31 @@ version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3369f5ac52d5eb6ab48c6b4ffdc8efbcad6b89c765749064ba298f2c68a16a76"
 
+[[package]]
+name = "test-utils"
+version = "0.1.0"
+dependencies = [
+ "anyhow",
+ "flate2",
+ "reqwest",
+]
+
 [[package]]
 name = "thiserror"
 version = "1.0.69"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b6aaf5339b578ea85b50e080feb250a3e8ae8cfcdff9a461c9ec2904bc923f52"
 dependencies = [
- "thiserror-impl",
+ "thiserror-impl 1.0.69",
+]
+
+[[package]]
+name = "thiserror"
+version = "2.0.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0b0949c3a6c842cbde3f1686d6eea5a010516deb7085f79db747562d4102f41e"
+dependencies = [
+ "thiserror-impl 2.0.14",
 ]
 
 [[package]]
@@ -2196,6 +2711,17 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "thiserror-impl"
+version = "2.0.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cc5b44b4ab9c2fdd0e0512e6bece8388e214c0749f5862b114cc5b7a25daf227"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "tinystr"
 version = "0.7.6"
@@ -2217,10 +2743,43 @@ dependencies = [
  "libc",
  "mio",
  "pin-project-lite",
- "socket2",
+ "socket2 0.5.8",
  "windows-sys 0.52.0",
 ]
 
+[[package]]
+name = "tokio-native-tls"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bbae76ab933c85776efabc971569dd6119c580d8f5d448769dec1764bf796ef2"
+dependencies = [
+ "native-tls",
+ "tokio",
+]
+
+[[package]]
+name = "tokio-rustls"
+version = "0.26.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e727b36a1a0e8b74c376ac2211e40c2c8af09fb4013c60d910495810f008e9b"
+dependencies = [
+ "rustls",
+ "tokio",
+]
+
+[[package]]
+name = "tokio-util"
+version = "0.7.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "14307c986784f72ef81c89db7d9e28d6ac26d16213b109ea501696195e6e3ce5"
+dependencies = [
+ "bytes",
+ "futures-core",
+ "futures-sink",
+ "pin-project-lite",
+ "tokio",
+]
+
 [[package]]
 name = "toml"
 version = "0.8.19"
@@ -2255,6 +2814,51 @@ dependencies = [
  "winnow",
 ]
 
+[[package]]
+name = "tower"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d039ad9159c98b70ecfd540b2573b97f7f52c3e8d9f8ad57a24b916a536975f9"
+dependencies = [
+ "futures-core",
+ "futures-util",
+ "pin-project-lite",
+ "sync_wrapper",
+ "tokio",
+ "tower-layer",
+ "tower-service",
+]
+
+[[package]]
+name = "tower-http"
+version = "0.6.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "adc82fd73de2a9722ac5da747f12383d2bfdb93591ee6c58486e0097890f05f2"
+dependencies = [
+ "bitflags 2.6.0",
+ "bytes",
+ "futures-util",
+ "http",
+ "http-body",
+ "iri-string",
+ "pin-project-lite",
+ "tower",
+ "tower-layer",
+ "tower-service",
+]
+
+[[package]]
+name = "tower-layer"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "121c2a6cda46980bb0fcd1647ffaf6cd3fc79a013de288782836f6df9c48780e"
+
+[[package]]
+name = "tower-service"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8df9b6e13f2d32c91b9bd719c00d1958837bc7dec474d94952798cc8e69eeec3"
+
 [[package]]
 name = "tracing"
 version = "0.1.41"
@@ -2297,6 +2901,12 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "try-lock"
+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e421abadd41a4225275504ea4d6566923418b7f05506fbc9c0fe86ba7396114b"
+
 [[package]]
 name = "typenum"
 version = "1.17.0"
@@ -2327,6 +2937,12 @@ version = "0.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ebc1c04c71510c7f702b52b7c350734c9ff1295c464a03335b00bb84fc54f853"
 
+[[package]]
+name = "untrusted"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8ecb6da28b8a351d773b68d5825ac39017e680750f980f3a1a85cd8dd28a47c1"
+
 [[package]]
 name = "url"
 version = "2.5.4"
@@ -2362,6 +2978,12 @@ version = "1.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f8c5f0a0af699448548ad1a2fbf920fb4bee257eae39953ba95cb84891a0446a"
 
+[[package]]
+name = "vcpkg"
+version = "0.2.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "accd4ea62f7bb7a82fe23066fb0957d48ef677f6eeb8215f372f52e48bb32426"
+
 [[package]]
 name = "version_check"
 version = "0.9.5"
@@ -2387,28 +3009,47 @@ dependencies = [
  "winapi-util",
 ]
 
+[[package]]
+name = "want"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bfa7760aed19e106de2c7c0b581b509f2f25d3dacaf737cb82ac61bc6d760b0e"
+dependencies = [
+ "try-lock",
+]
+
 [[package]]
 name = "wasi"
 version = "0.11.0+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
 
+[[package]]
+name = "wasi"
+version = "0.14.2+wasi-0.2.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9683f9a5a998d873c0d21fcbe3c083009670149a8fab228644b8bd36b2c48cb3"
+dependencies = [
+ "wit-bindgen-rt",
+]
+
 [[package]]
 name = "wasm-bindgen"
-version = "0.2.99"
+version = "0.2.100"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a474f6281d1d70c17ae7aa6a613c87fce69a127e2624002df63dcb39d6cf6396"
+checksum = "1edc8929d7499fc4e8f0be2262a241556cfc54a0bea223790e71446f2aab1ef5"
 dependencies = [
  "cfg-if",
  "once_cell",
+ "rustversion",
  "wasm-bindgen-macro",
 ]
 
 [[package]]
 name = "wasm-bindgen-backend"
-version = "0.2.99"
+version = "0.2.100"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5f89bb38646b4f81674e8f5c3fb81b562be1fd936d84320f3264486418519c79"
+checksum = "2f0a0651a5c2bc21487bde11ee802ccaf4c51935d0d3d42a6101f98161700bc6"
 dependencies = [
  "bumpalo",
  "log",
@@ -2418,11 +3059,24 @@ dependencies = [
  "wasm-bindgen-shared",
 ]
 
+[[package]]
+name = "wasm-bindgen-futures"
+version = "0.4.50"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "555d470ec0bc3bb57890405e5d4322cc9ea83cebb085523ced7be4144dac1e61"
+dependencies = [
+ "cfg-if",
+ "js-sys",
+ "once_cell",
+ "wasm-bindgen",
+ "web-sys",
+]
+
 [[package]]
 name = "wasm-bindgen-macro"
-version = "0.2.99"
+version = "0.2.100"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2cc6181fd9a7492eef6fef1f33961e3695e4579b9872a6f7c83aee556666d4fe"
+checksum = "7fe63fc6d09ed3792bd0897b314f53de8e16568c2b3f7982f468c0bf9bd0b407"
 dependencies = [
  "quote",
  "wasm-bindgen-macro-support",
@@ -2430,9 +3084,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro-support"
-version = "0.2.99"
+version = "0.2.100"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "30d7a95b763d3c45903ed6c81f156801839e5ee968bb07e534c44df0fcd330c2"
+checksum = "8ae87ea40c9f689fc23f209965b6fb8a99ad69aeeb0231408be24920604395de"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2443,9 +3097,12 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-shared"
-version = "0.2.99"
+version = "0.2.100"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "943aab3fdaaa029a6e0271b35ea10b72b943135afe9bffca82384098ad0e06a6"
+checksum = "1a05d73b933a847d6cccdda8f838a22ff101ad9bf93e33684f39c1f5f0eece3d"
+dependencies = [
+ "unicode-ident",
+]
 
 [[package]]
 name = "wasm-encoder"
@@ -2467,6 +3124,14 @@ dependencies = [
  "wasmparser 0.230.0",
 ]
 
+[[package]]
+name = "wasm_api_v1"
+version = "0.1.0"
+dependencies = [
+ "anyhow",
+ "shopify_function_wasm_api",
+]
+
 [[package]]
 name = "wasmparser"
 version = "0.226.0"
@@ -2590,7 +3255,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e209505770c7f38725513dba37246265fa6f724c30969de1e9d2a9e6c8f55099"
 dependencies = [
  "anyhow",
- "base64",
+ "base64 0.21.7",
  "directories-next",
  "log",
  "postcard",
@@ -2644,7 +3309,7 @@ dependencies = [
  "pulley-interpreter",
  "smallvec",
  "target-lexicon",
- "thiserror",
+ "thiserror 1.0.69",
  "wasmparser 0.226.0",
  "wasmtime-environ",
  "wasmtime-versioned-export-macros",
@@ -2763,7 +3428,7 @@ dependencies = [
  "io-lifetimes",
  "rustix 0.38.44",
  "system-interface",
- "thiserror",
+ "thiserror 1.0.69",
  "tokio",
  "tracing",
  "url",
@@ -2846,6 +3511,16 @@ dependencies = [
  "wast 230.0.0",
 ]
 
+[[package]]
+name = "web-sys"
+version = "0.3.77"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "33b6dd2ef9186f1f2072e409e99cd22a975331a6b3591b12c764e0e55c60d5d2"
+dependencies = [
+ "js-sys",
+ "wasm-bindgen",
+]
+
 [[package]]
 name = "wiggle"
 version = "31.0.0"
@@ -2855,7 +3530,7 @@ dependencies = [
  "anyhow",
  "async-trait",
  "bitflags 2.6.0",
- "thiserror",
+ "thiserror 1.0.69",
  "tracing",
  "wasmtime",
  "wiggle-macro",
@@ -2931,7 +3606,7 @@ dependencies = [
  "regalloc2",
  "smallvec",
  "target-lexicon",
- "thiserror",
+ "thiserror 1.0.69",
  "wasmparser 0.226.0",
  "wasmtime-cranelift",
  "wasmtime-environ",
@@ -2946,6 +3621,41 @@ dependencies = [
  "windows-targets",
 ]
 
+[[package]]
+name = "windows-link"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5e6ad25900d524eaabdbbb96d20b4311e1e7ae1699af4fb28c17ae66c80d798a"
+
+[[package]]
+name = "windows-registry"
+version = "0.5.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5b8a9ed28765efc97bbc954883f4e6796c33a06546ebafacbabee9696967499e"
+dependencies = [
+ "windows-link",
+ "windows-result",
+ "windows-strings",
+]
+
+[[package]]
+name = "windows-result"
+version = "0.3.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "56f42bd332cc6c8eac5af113fc0c1fd6a8fd2aa08a0119358686e5160d0586c6"
+dependencies = [
+ "windows-link",
+]
+
+[[package]]
+name = "windows-strings"
+version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "56e6c93f3a0c3b36176cb1327a4958a0353d5d166c2a35cb268ace15e91d3b57"
+dependencies = [
+ "windows-link",
+]
+
 [[package]]
 name = "windows-sys"
 version = "0.52.0"
@@ -3047,6 +3757,15 @@ dependencies = [
  "windows-sys 0.59.0",
 ]
 
+[[package]]
+name = "wit-bindgen-rt"
+version = "0.39.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6f42320e61fe2cfd34354ecb597f86f413484a798ba44a8ca1165c58d42da6c1"
+dependencies = [
+ "bitflags 2.6.0",
+]
+
 [[package]]
 name = "wit-parser"
 version = "0.226.0"
@@ -3073,7 +3792,7 @@ checksum = "e366f27a5cabcddb2706a78296a40b8fcc451e1a6aba2fc1d94b4a01bdaaef4b"
 dependencies = [
  "anyhow",
  "log",
- "thiserror",
+ "thiserror 1.0.69",
  "wast 35.0.2",
 ]
 
@@ -3161,6 +3880,12 @@ dependencies = [
  "synstructure",
 ]
 
+[[package]]
+name = "zeroize"
+version = "1.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ced3678a2879b30306d323f4542626697a464a97c0a07c9aebf7ebca65cd4dde"
+
 [[package]]
 name = "zerovec"
 version = "0.10.4"
diff --git a/Cargo.toml b/Cargo.toml
index 883e29c5..1cd7213b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,12 +1,13 @@
 [workspace]
 members = [
+  "test-utils",
   "tests/fixtures/exit_code",
   "tests/fixtures/log_truncation_function",
   "tests/fixtures/exports",
   "tests/fixtures/noop",
   "tests/fixtures/messagepack-valid",
   "tests/fixtures/messagepack-invalid",
-  "tests/fixtures/echo",
+  "tests/fixtures/wasm_api_v1",
 ]
 
 [package]
@@ -63,3 +64,4 @@ bluejay-validator = { version = "=0.3.0" }
 assert_cmd = "2.0"
 predicates = "3.1"
 assert_fs = "1.1.3"
+test-utils = { path = "test-utils" }
diff --git a/src/engine.rs b/src/engine.rs
index f8d03701..064fe9db 100644
--- a/src/engine.rs
+++ b/src/engine.rs
@@ -468,17 +468,19 @@ mod tests {
     }
 
     #[test]
-    fn test_wasm_api_function() -> Result<()> {
-        let engine = new_engine()?;
-        let module = Module::from_file(
-            &engine,
-            Path::new("tests/fixtures/build/echo.trampolined.wasm"),
+    fn test_wasm_api_v1_function() -> Result<()> {
+        let trampolined_path = assert_fs::NamedTempFile::new("wasm_api_v1.trampolined.wasm")?;
+        test_utils::process_with_v1_trampoline(
+            "tests/fixtures/build/wasm_api_v1.wasm",
+            &trampolined_path,
         )?;
+        let engine = new_engine()?;
+        let module = Module::from_file(&engine, &trampolined_path)?;
         let expected_input_value = json!({"foo": "echo", "bar": "test"});
         let input = serde_json::to_vec(&expected_input_value).unwrap();
         let input_bytes = BytesContainer::new(BytesContainerType::Input, Codec::Json, input);
         let function_run_result = run(FunctionRunParams {
-            function_path: Path::new("tests/fixtures/build/echo.trampolined.wasm").to_path_buf(),
+            function_path: trampolined_path.to_path_buf(),
             input: input_bytes.unwrap(),
             export: DEFAULT_EXPORT,
             module,
diff --git a/test-utils/Cargo.toml b/test-utils/Cargo.toml
new file mode 100644
index 00000000..c463bde9
--- /dev/null
+++ b/test-utils/Cargo.toml
@@ -0,0 +1,9 @@
+[package]
+name = "test-utils"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+anyhow = "1.0"
+reqwest = { version = "0.12.23", features = ["blocking"] }
+flate2 = "1.1.2"
diff --git a/test-utils/src/lib.rs b/test-utils/src/lib.rs
new file mode 100644
index 00000000..f9dd2915
--- /dev/null
+++ b/test-utils/src/lib.rs
@@ -0,0 +1,78 @@
+use anyhow::{anyhow, bail, Result};
+use std::{
+    path::{Path, PathBuf},
+    process::Command,
+    sync::LazyLock,
+};
+
+pub fn process_with_v1_trampoline<P: AsRef<Path>, Q: AsRef<Path>>(
+    wasm_path: P,
+    trampolined_path: Q,
+) -> Result<()> {
+    let trampoline_path = TRAMPOLINE_1_0_PATH
+        .as_ref()
+        .map_err(|e| anyhow!("Failed to download trampoline: {e}"))?;
+    let status = Command::new(trampoline_path)
+        .arg("-i")
+        .arg(wasm_path.as_ref())
+        .arg("-o")
+        .arg(trampolined_path.as_ref())
+        .status()?;
+    if !status.success() {
+        bail!("Trampolining failed");
+    }
+    Ok(())
+}
+
+static TRAMPOLINE_1_0_PATH: LazyLock<Result<PathBuf>> = LazyLock::new(|| {
+    let binaries_path = Path::new(env!("CARGO_MANIFEST_DIR")).join("../tmp");
+    let path = binaries_path.join("trampoline-1.0.2");
+    if !path.exists() {
+        std::fs::create_dir_all(binaries_path)?;
+        download_trampoline(&path, "1.0.2")?;
+    }
+    Ok(path)
+});
+
+fn download_trampoline(destination: &Path, version: &str) -> Result<()> {
+    let target_os = if cfg!(target_os = "macos") {
+        "macos"
+    } else if cfg!(target_os = "linux") {
+        "linux"
+    } else if cfg!(target_os = "windows") {
+        "windows"
+    } else {
+        bail!("Unsupported target OS");
+    };
+
+    let target_arch = if cfg!(target_arch = "x86_64") {
+        "x86_64"
+    } else if cfg!(target_arch = "aarch64") {
+        "arm"
+    } else {
+        bail!("Unsupported target architecture");
+    };
+
+    let url = format!(
+            "https://github.com/Shopify/shopify-function-wasm-api/releases/download/shopify_function_trampoline/v{version}/shopify-function-trampoline-{target_arch}-{target_os}-v{version}.gz",
+        );
+
+    let response = reqwest::blocking::get(&url)?;
+    if !response.status().is_success() {
+        bail!("Failed to download artifact: {}", response.status());
+    }
+    let bytes = response.bytes()?;
+    let mut gz_decoder = flate2::read::GzDecoder::new(bytes.as_ref());
+    let mut file = std::fs::File::create(destination)?;
+    std::io::copy(&mut gz_decoder, &mut file)?;
+
+    #[cfg(unix)]
+    {
+        use std::os::unix::fs::PermissionsExt;
+        let mut perms = file.metadata()?.permissions();
+        perms.set_mode(0o755);
+        file.set_permissions(perms)?;
+    }
+
+    Ok(())
+}
diff --git a/tests/fixtures/README.md b/tests/fixtures/README.md
index bcd51909..6b177745 100644
--- a/tests/fixtures/README.md
+++ b/tests/fixtures/README.md
@@ -11,8 +11,8 @@ Example Functions used as test fixtures.
 
 **Rust examples:**
 ```
-cargo build --target wasm32-wasip1 --profile=wasm -p exit_code -p exports -p log_truncation_function -p noop &&
-  find target/wasm32-wasip1/wasm/{exit_code.wasm,exports.wasm,log_truncation_function.wasm,noop.wasm} | xargs -I {} sh -c 'name=$(basename {}); wasm-opt {} -Oz --enable-bulk-memory --strip-debug -o "tests/fixtures/build/$name"'
+cargo build --target wasm32-wasip1 --profile=wasm -p exit_code -p exports -p log_truncation_function -p noop -p wasm_api_v1 &&
+  find target/wasm32-wasip1/wasm/{exit_code.wasm,exports.wasm,log_truncation_function.wasm,noop.wasm,wasm_api_v1.wasm} | xargs -I {} sh -c 'name=$(basename {}); wasm-opt {} -Oz --enable-bulk-memory --strip-debug -o "tests/fixtures/build/$name"'
 ```
 
 **JS examples:**
diff --git a/tests/fixtures/build/echo.trampolined.wasm b/tests/fixtures/build/echo.trampolined.wasm
deleted file mode 100644
index 8924d438..00000000
Binary files a/tests/fixtures/build/echo.trampolined.wasm and /dev/null differ
diff --git a/tests/fixtures/build/echo.wasm b/tests/fixtures/build/echo.wasm
deleted file mode 100644
index d2f92ba7..00000000
Binary files a/tests/fixtures/build/echo.wasm and /dev/null differ
diff --git a/tests/fixtures/build/wasm_api_v1.wasm b/tests/fixtures/build/wasm_api_v1.wasm
new file mode 100644
index 00000000..368252f2
Binary files /dev/null and b/tests/fixtures/build/wasm_api_v1.wasm differ
diff --git a/tests/fixtures/echo/Cargo.toml b/tests/fixtures/echo/Cargo.toml
deleted file mode 100644
index 51d5eb6c..00000000
--- a/tests/fixtures/echo/Cargo.toml
+++ /dev/null
@@ -1,6 +0,0 @@
-[package]
-name = "echo"
-version = "0.1.0"
-edition = "2021"
-
-[dependencies]
diff --git a/tests/fixtures/echo/src/main.rs b/tests/fixtures/echo/src/main.rs
deleted file mode 100644
index ee274407..00000000
--- a/tests/fixtures/echo/src/main.rs
+++ /dev/null
@@ -1,7 +0,0 @@
-use std::io::{Read, Write};
-
-fn main() {
-    let mut buf: Vec<u8> = vec![];
-    std::io::stdin().read_to_end(&mut buf).unwrap();
-    std::io::stdout().write_all(&buf).unwrap();
-}
diff --git a/tests/fixtures/wasm_api_v1/Cargo.toml b/tests/fixtures/wasm_api_v1/Cargo.toml
new file mode 100644
index 00000000..05470971
--- /dev/null
+++ b/tests/fixtures/wasm_api_v1/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "wasm_api_v1"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+anyhow = "1.0"
+shopify_function_wasm_api = "0.1.0"
diff --git a/tests/fixtures/wasm_api_v1/src/main.rs b/tests/fixtures/wasm_api_v1/src/main.rs
new file mode 100644
index 00000000..f4568195
--- /dev/null
+++ b/tests/fixtures/wasm_api_v1/src/main.rs
@@ -0,0 +1,20 @@
+use anyhow::{anyhow, Result};
+
+fn main() -> Result<()> {
+    let mut ctx = shopify_function_wasm_api::Context::new();
+    let input = ctx.input_get()?;
+    let str = input
+        .get_obj_prop("hello")
+        .as_string()
+        .ok_or_else(|| anyhow!("Should be string"))?;
+    ctx.write_object(
+        |ctx| {
+            ctx.write_utf8_str("bye")?;
+            ctx.write_utf8_str(&str)?;
+            Ok(())
+        },
+        1,
+    )?;
+    ctx.finalize_output()?;
+    Ok(())
+}
diff --git a/tests/integration_tests.rs b/tests/integration_tests.rs
index b429fc12..a12e95bc 100644
--- a/tests/integration_tests.rs
+++ b/tests/integration_tests.rs
@@ -379,24 +379,27 @@ mod tests {
     }
 
     #[test]
-    fn run_wasm_api_function() -> Result<()> {
+    fn run_wasm_api_v1_function() -> Result<()> {
+        let trampolined_module = assert_fs::NamedTempFile::new("wasm_api_v1.trampolined.wasm")?;
+        test_utils::process_with_v1_trampoline(
+            "tests/fixtures/build/wasm_api_v1.wasm",
+            &trampolined_module,
+        )?;
+
         let mut cmd = Command::cargo_bin("function-runner")?;
-        let input_file = temp_input(json!({
-            "test": "echo"
-        }))?;
+        let input_file = temp_input(json!({"hello": "world"}))?;
 
-        cmd.args(["--function", "tests/fixtures/build/echo.trampolined.wasm"])
+        cmd.arg("--function")
+            .arg(trampolined_module.as_os_str())
             .arg("--json")
             .arg("--input")
             .arg(input_file.as_os_str())
             .stdout(Stdio::piped())
-            .spawn()
-            .expect("Failed to spawn child process")
-            .wait_with_output()
-            .expect("Failed waiting for output");
+            .spawn()?
+            .wait_with_output()?;
 
         cmd.assert().success();
-        cmd.assert().stdout(contains("\"test\": \"echo\""));
+        cmd.assert().stdout(contains("world"));
 
         Ok(())
     }