Feat: add Docker+wasm examples (#309)
* Add a Docker+wasm sample application featuring a WasmEdge-based microservice, a MySQL database and an Nginx web server for frontend UI files. Signed-off-by: Michael Yuan <michael@secondstate.io> * Add a logo to indicate Docker+wasm compatibility. Add project descriptions to README. Signed-off-by: Michael Yuan <michael@secondstate.io> * Add the example for WasmEdge + Kafka / Redpanda + MySQL application to take messages from a queue and save into a database table. Signed-off-by: Michael Yuan <michael@secondstate.io> * Add a SVG icon to indicate Docker + Wasm req Signed-off-by: Michael Yuan <michael@michaelyuan.com> Signed-off-by: Michael Yuan <michael@michaelyuan.com> * Update the docker compose files for the new Docker Desktop release Signed-off-by: Michael Yuan <michael@secondstate.io> * Use the correct platform to be compatible with Docker Desktop 4.15 Signed-off-by: Michael Yuan <michael@secondstate.io> * Update README.md Co-authored-by: David Karlsson <35727626+dvdksn@users.noreply.github.com> Signed-off-by: Michael Yuan <michael@michaelyuan.com> * Update wasmedge-kafka-mysql/README.md Signed-off-by: Michael Yuan <michael@michaelyuan.com> Co-authored-by: David Karlsson <35727626+dvdksn@users.noreply.github.com> Signed-off-by: Michael Yuan <michael@michaelyuan.com> * Update wasmedge-kafka-mysql/README.md Signed-off-by: Michael Yuan <michael@michaelyuan.com> Co-authored-by: David Karlsson <35727626+dvdksn@users.noreply.github.com> Signed-off-by: Michael Yuan <michael@michaelyuan.com> * Update wasmedge-kafka-mysql/etl/Dockerfile Signed-off-by: Michael Yuan <michael@michaelyuan.com> Co-authored-by: David Karlsson <35727626+dvdksn@users.noreply.github.com> Signed-off-by: Michael Yuan <michael@michaelyuan.com> * Update wasmedge-mysql-nginx/README.md Signed-off-by: Michael Yuan <michael@michaelyuan.com> Co-authored-by: David Karlsson <35727626+dvdksn@users.noreply.github.com> Signed-off-by: Michael Yuan <michael@michaelyuan.com> * Update wasmedge-mysql-nginx/README.md Signed-off-by: Michael Yuan <michael@michaelyuan.com> Co-authored-by: David Karlsson <35727626+dvdksn@users.noreply.github.com> Signed-off-by: Michael Yuan <michael@michaelyuan.com> * Update wasmedge-mysql-nginx/README.md Signed-off-by: Michael Yuan <michael@michaelyuan.com> Co-authored-by: David Karlsson <35727626+dvdksn@users.noreply.github.com> Signed-off-by: Michael Yuan <michael@michaelyuan.com> * Update wasmedge-mysql-nginx/README.md Signed-off-by: Michael Yuan <michael@michaelyuan.com> Co-authored-by: David Karlsson <35727626+dvdksn@users.noreply.github.com> Signed-off-by: Michael Yuan <michael@michaelyuan.com> * Update wasmedge-mysql-nginx/README.md Signed-off-by: Michael Yuan <michael@michaelyuan.com> Co-authored-by: David Karlsson <35727626+dvdksn@users.noreply.github.com> Signed-off-by: Michael Yuan <michael@michaelyuan.com> * Update wasmedge-mysql-nginx/README.md Signed-off-by: Michael Yuan <michael@michaelyuan.com> Co-authored-by: David Karlsson <35727626+dvdksn@users.noreply.github.com> Signed-off-by: Michael Yuan <michael@michaelyuan.com> * Update wasmedge-mysql-nginx/README.md Co-authored-by: David Karlsson <35727626+dvdksn@users.noreply.github.com> Signed-off-by: Michael Yuan <michael@michaelyuan.com> * Update wasmedge-mysql-nginx/README.md Co-authored-by: David Karlsson <35727626+dvdksn@users.noreply.github.com> Signed-off-by: Michael Yuan <michael@michaelyuan.com> * Update wasmedge-mysql-nginx/README.md Co-authored-by: David Karlsson <35727626+dvdksn@users.noreply.github.com> Signed-off-by: Michael Yuan <michael@michaelyuan.com> * Update wasmedge-mysql-nginx/README.md Co-authored-by: David Karlsson <35727626+dvdksn@users.noreply.github.com> Signed-off-by: Michael Yuan <michael@michaelyuan.com> * Change the Nginx port to the default non-privileged 8090 Signed-off-by: Michael Yuan <michael@secondstate.io> * My apologies. Need to correct the syntax for the Nginx port 8090. Signed-off-by: Michael Yuan <michael@secondstate.io> * Remove commented lines Signed-off-by: Michael Yuan <michael@secondstate.io> * Change wasi/wasm32 to wasi/wasm to conform with the latest spec Signed-off-by: Michael Yuan <michael@secondstate.io> * Update README.md Co-authored-by: Michael Irwin <mikesir87@gmail.com> Signed-off-by: Michael Yuan <michael@michaelyuan.com> Signed-off-by: Michael Yuan <michael@secondstate.io> Signed-off-by: Michael Yuan <michael@michaelyuan.com> Co-authored-by: David Karlsson <35727626+dvdksn@users.noreply.github.com> Co-authored-by: Michael Irwin <mikesir87@gmail.com>
This commit is contained in:
Michael Yuan
GitHub
parent
6f15838d24
commit
e6b1d2755f
@ -20,6 +20,8 @@ These samples provide a starting point for how to integrate different services u
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<a href="https://docs.docker.com/desktop/dev-environments/"><img src="icon_devenvs.svg" alt="Use with Docker Dev Environments" height="30" align="top"/></a> Icon indicates Sample is compatible with [Docker Dev Environments](https://docs.docker.com/desktop/dev-environments/) in Docker Desktop version 4.10 or later.
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<a href="https://docs.docker.com/desktop/wasm/"><img src="icon_wasm.svg" alt="Docker + wasm" height="30" align="top"/></a> Icon indicates Sample is compatible with [Docker+Wasm](https://docs.docker.com/desktop/wasm/).
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- [`ASP.NET / MS-SQL`](aspnet-mssql) - Sample ASP.NET core application
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with MS SQL server database.
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- [`Elasticsearch / Logstash / Kibana`](elasticsearch-logstash-kibana) - Sample Elasticsearch, Logstash, and Kibana stack.
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@ -49,6 +51,8 @@ application with a Rust backend and a Postgres database. <a href="react-rus
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- [`React / Nginx`](react-nginx) - Sample React application with Nginx. <a href="react-nginx"><img src="icon_devenvs.svg" alt="Use with Docker Dev Environments" height="30" align="top"/></a>
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- [`Spring / PostgreSQL`](spring-postgres) - Sample Java application
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with Spring framework and a Postgres database. <a href="spring-postgres"><img src="icon_devenvs.svg" alt="Use with Docker Dev Environments" height="30" align="top"/></a>
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- [`WasmEdge / MySQL / Nginx`](wasmedge-mysql-nginx) - Sample Wasm-based web application with a static HTML frontend, using a MySQL (MariaDB) database. The frontend connects to a Wasm microservice written in Rust, that runs using the WasmEdge runtime. <a href="wasmedge-mysql-nginx"><img src="icon_wasm.svg" alt="Compatible with Docker+wasm" height="30" align="top"/></a>
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- [`WasmEdge / Kafka / MySQL`](wasmedge-kafka-mysql) - Sample Wasm-based microservice that subscribes to a Kafka (Redpanda) queue topic, and transforms and saves any incoming message into a MySQL (MariaDB) database. <a href="wasmedge-kafka-mysql"><img src="icon_wasm.svg" alt="Compatible with Docker+wasm" height="30" align="top"/></a>
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## Single service samples
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13
icon_wasm.svg
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13
icon_wasm.svg
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@ -0,0 +1,13 @@
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<svg id="WA-icon" xmlns="http://www.w3.org/2000/svg" width="144" height="111" viewBox="0 0 1440 1110">
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<defs>
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<style>
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.cls-1 {
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fill: #6f45f9;
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fill-rule: evenodd;
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}
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</style>
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</defs>
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<path id="shape_4" data-name="shape 4" class="cls-1" d="M445,280H651v7s0.437,32.383,29,49c30.515,17.752,62.137,4.583,72-4,10.362-9.017,22.2-23.3,23-45v-7H981V816H445V280ZM569,567h36l24,128,30-128h33l27,128,28-127h35L737,759H702L675,631,646,759H610ZM776,759l46-191h57l55,191H897l-12-42H820l-9,42H776Z" transform="translate(0.594 9.312)"/>
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<path id="shape_1" data-name="shape 1" class="cls-1" d="M827,685.471l16-71h15l19,71H827Z" transform="translate(0.594 9.312)"/>
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<path id="shape_3" data-name="shape 3" class="cls-1" d="M323,232.471l-122,54s-32,12.311-32,51v412s-4.458,38.615,29,54,497,221,497,221,22.409,11.15,46,1,116-51,116-51,14.081-5.669,14-22c-0.088-17.6-16.3-33.023-36-24s-96,43-96,43-17.573,10.1-37,2-449-198-449-198-24-11.257-24-40v-374a42.353,42.353,0,0,1,25-38c25.972-12.225,88-39,88-39s18-5.765,18-26C360,237.118,338.709,225.966,323,232.471Zm284-127,93-41s19.94-8.9,51,5,485,216,485,216,34,14.168,34,51v422s0.85,30.084-26,43-116,53-116,53-14.98,4.522-25-7-8.79-32.833,5-39,67-29,67-29l8-4s23-12.024,23-46v-369s1.61-26.142-28-39-437-194-437-194-21.48-9.931-40-2-77,34-77,34-22.162,7.988-33-8S584.324,115.515,607,105.471Z" transform="translate(0.594 9.312)"/>
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</svg>
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After Width: | Height: | Size: 1.4 KiB |
36
wasmedge-kafka-mysql/.docker/docker-compose.yml
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36
wasmedge-kafka-mysql/.docker/docker-compose.yml
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services:
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redpanda:
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image: docker.redpanda.com/vectorized/redpanda:v22.2.2
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command:
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- redpanda start
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- --smp 1
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- --overprovisioned
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- --node-id 0
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- --kafka-addr PLAINTEXT://0.0.0.0:29092,OUTSIDE://0.0.0.0:9092
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- --advertise-kafka-addr PLAINTEXT://redpanda:29092,OUTSIDE://redpanda:9092
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- --pandaproxy-addr 0.0.0.0:8082
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- --advertise-pandaproxy-addr localhost:8082
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ports:
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- 8081:8081
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- 8082:8082
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- 9092:9092
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- 9644:9644
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- 29092:29092
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volumes:
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- ./kafka:/app
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etl:
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image: etl-kafka
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platform: wasi/wasm
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build:
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context: etl
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environment:
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DATABASE_URL: mysql://root:whalehello@db:3306/mysql
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KAFKA_URL: kafka://redpanda:9092/order
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RUST_BACKTRACE: full
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RUST_LOG: info
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restart: unless-stopped
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runtime: io.containerd.wasmedge.v1
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db:
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image: mariadb:10.9
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environment:
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MYSQL_ROOT_PASSWORD: whalehello
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117
wasmedge-kafka-mysql/README.md
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wasmedge-kafka-mysql/README.md
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# Compose sample application
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This sample demonstrates a WebAssembly (Wasm) microservice written in Rust. It subscribes to a Kafka queue topic on a Redpanda server, and then transforms and saves each message into a MySQL (MariaDB) database table. The microservice is compiled into Wasm and runs in the WasmEdge runtime, which is a secure and lightweight alternative to natively compiled Rust apps in Linux containers.
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## Use with Docker Development Environments
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You will need a version of Docker Desktop or Docker CLI with Wasm support.
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* [Install Docker Desktop + Wasm (Beta)](https://docs.docker.com/desktop/wasm/)
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* [Install Docker CLI + Wasm](https://github.com/chris-crone/wasm-day-na-22/tree/main/server)
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## WasmEdge server with Redpanda and MySQL database
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Project structure:
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```
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.
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+-- compose.yml
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|-- etl
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|-- Dockerfile
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|-- Cargo.toml
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+-- src
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|-- main.rs
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|-- kafka
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|-- order.json
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|-- db
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|-- db-password.txt
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```
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The [compose.yml](compose.yml) is as follows.
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```yaml
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services:
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redpanda:
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image: docker.redpanda.com/vectorized/redpanda:v22.2.2
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command:
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- redpanda start
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- --smp 1
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- --overprovisioned
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- --node-id 0
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- --kafka-addr PLAINTEXT://0.0.0.0:29092,OUTSIDE://0.0.0.0:9092
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- --advertise-kafka-addr PLAINTEXT://redpanda:29092,OUTSIDE://redpanda:9092
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- --pandaproxy-addr 0.0.0.0:8082
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- --advertise-pandaproxy-addr localhost:8082
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ports:
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- 8081:8081
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- 8082:8082
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- 9092:9092
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- 9644:9644
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- 29092:29092
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volumes:
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- ./kafka:/app
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etl:
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image: etl-kafka
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build:
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context: etl
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platforms:
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- wasi/wasm32
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environment:
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DATABASE_URL: mysql://root:whalehello@db:3306/mysql
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KAFKA_URL: kafka://redpanda:9092/order
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RUST_BACKTRACE: full
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RUST_LOG: info
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restart: unless-stopped
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runtime: io.containerd.wasmedge.v1
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db:
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image: mariadb:10.9
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environment:
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MYSQL_ROOT_PASSWORD: whalehello
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```
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The compose file defines an application with three services `redpanda`, `etl` and `db`. The `redpanda` service is a Kafka-compatible messaging server that produces messages in a queue topic. The `etl` service, in the WasmEdge container that subscribes to the queue topic and receives incoming messages. Each incoming message is parsed and stored in the `db` MySQL (MariaDB) database server.
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## Deploy with docker compose
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```bash
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$ docker compose up -d
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...
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⠿ Network wasmedge-kafka-mysql_default Created 0.1s
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⠿ Container wasmedge-kafka-mysql-redpanda-1 Created 0.3s
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⠿ Container wasmedge-kafka-mysql-etl-1 Created 0.3s
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⠿ Container wasmedge-kafka-mysql-db-1 Created 0.3s
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```
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## Expected result
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```bash
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$ docker compose ps
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NAME COMMAND SERVICE STATUS PORTS
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wasmedge-kafka-mysql-db-1 "docker-entrypoint.s…" db running 3306/tcp
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wasmedge-kafka-mysql-etl-1 "kafka.wasm" etl running
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wasmedge-kafka-mysql-redpanda-1 "/entrypoint.sh 'red…" redpanda running 0.0.0.0:8081-8082->8081-8082/tcp, :::8081-8082->8081-8082/tcp, 0.0.0.0:9092->9092/tcp, :::9092->9092/tcp, 0.0.0.0:9644->9644/tcp, :::9644->9644/tcp, 0.0.0.0:29092->29092/tcp, :::29092->29092/tcp
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```
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After the application starts,
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log into the Redpanda container and send a message to the queue topic `order` as follows.
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```bash
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$ docker compose exec redpanda /bin/bash
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redpanda@1add2615774b:/$ cd /app
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redpanda@1add2615774b:/app$ cat order.json | rpk topic produce order
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Produced to partition 0 at offset 0 with timestamp 1667922788523.
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```
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To see the data in the database container, you can use the following commands.
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```bash
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$ docker compose exec db /bin/bash
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root@c97c472db02e:/# mysql -u root -pwhalehello mysql
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mysql> select * from orders;
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... ...
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```
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36
wasmedge-kafka-mysql/compose.yml
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36
wasmedge-kafka-mysql/compose.yml
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services:
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redpanda:
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image: docker.redpanda.com/vectorized/redpanda:v22.2.2
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command:
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- redpanda start
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- --smp 1
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- --overprovisioned
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- --node-id 0
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- --kafka-addr PLAINTEXT://0.0.0.0:29092,OUTSIDE://0.0.0.0:9092
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- --advertise-kafka-addr PLAINTEXT://redpanda:29092,OUTSIDE://redpanda:9092
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- --pandaproxy-addr 0.0.0.0:8082
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- --advertise-pandaproxy-addr localhost:8082
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ports:
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- 8081:8081
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- 8082:8082
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- 9092:9092
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- 9644:9644
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- 29092:29092
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volumes:
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- ./kafka:/app
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etl:
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image: etl-kafka
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platform: wasi/wasm
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build:
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context: etl
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environment:
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DATABASE_URL: mysql://root:whalehello@db:3306/mysql
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KAFKA_URL: kafka://redpanda:9092/order
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RUST_BACKTRACE: full
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RUST_LOG: info
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restart: unless-stopped
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runtime: io.containerd.wasmedge.v1
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db:
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image: mariadb:10.9
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environment:
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MYSQL_ROOT_PASSWORD: whalehello
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1
wasmedge-kafka-mysql/db/db-password.txt
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1
wasmedge-kafka-mysql/db/db-password.txt
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whalehello
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17
wasmedge-kafka-mysql/etl/Cargo.toml
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17
wasmedge-kafka-mysql/etl/Cargo.toml
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[package]
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name = "kafka"
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version = "0.1.0"
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edition = "2021"
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# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
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[dependencies]
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anyhow = "1.0.65"
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mega_etl = {git = "https://github.com/second-state/MEGA.git"}
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tokio_wasi = {version = '1.21', features = ["rt", "macros"]}
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env_logger = "0.9"
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log = "0.4"
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serde = { version = "1.0", features = ["derive"] }
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serde_json = "1.0"
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http_req_wasi = "0.10"
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lazy_static = "1.4.0"
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27
wasmedge-kafka-mysql/etl/Dockerfile
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27
wasmedge-kafka-mysql/etl/Dockerfile
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# syntax=docker/dockerfile:1
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FROM --platform=$BUILDPLATFORM rust:1.64 AS buildbase
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RUN <<EOT bash
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set -ex
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apt-get update
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apt-get install -y \
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git \
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clang
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rustup target add wasm32-wasi
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EOT
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# This line installs WasmEdge including the AOT compiler
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RUN curl -sSf https://raw.githubusercontent.com/WasmEdge/WasmEdge/master/utils/install.sh | bash
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FROM buildbase AS build
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COPY Cargo.toml .
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COPY src ./src
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# Build the Wasm binary
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RUN --mount=type=cache,target=/usr/local/cargo/git/db \
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--mount=type=cache,target=/usr/local/cargo/registry/cache \
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--mount=type=cache,target=/usr/local/cargo/registry/index \
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cargo build --target wasm32-wasi --release
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# This line builds the AOT Wasm binary
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RUN /root/.wasmedge/bin/wasmedgec target/wasm32-wasi/release/kafka.wasm kafka.wasm
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FROM scratch
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ENTRYPOINT [ "kafka.wasm" ]
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COPY --link --from=build /kafka.wasm /kafka.wasm
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58
wasmedge-kafka-mysql/etl/src/main.rs
Normal file
58
wasmedge-kafka-mysql/etl/src/main.rs
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use mega_etl::{async_trait, Pipe, Transformer, TransformerError, TransformerResult};
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use serde::{Deserialize, Serialize};
|
||||
#[derive(Serialize, Deserialize, Debug)]
|
||||
struct Order {
|
||||
order_id: i32,
|
||||
product_id: i32,
|
||||
quantity: i32,
|
||||
amount: f32,
|
||||
shipping: f32,
|
||||
tax: f32,
|
||||
shipping_address: String,
|
||||
}
|
||||
|
||||
#[async_trait]
|
||||
impl Transformer for Order {
|
||||
async fn transform(inbound_data: &Vec<u8>) -> TransformerResult<Vec<String>> {
|
||||
let s = std::str::from_utf8(&inbound_data)
|
||||
.map_err(|e| TransformerError::Custom(e.to_string()))?;
|
||||
let order: Order = serde_json::from_str(String::from(s).as_str())
|
||||
.map_err(|e| TransformerError::Custom(e.to_string()))?;
|
||||
log::info!("{:?}", &order);
|
||||
let mut ret = vec![];
|
||||
let sql_string = format!(
|
||||
r"INSERT INTO orders VALUES ({:?}, {:?}, {:?}, {:?}, {:?}, {:?}, {:?}, CURRENT_TIMESTAMP);",
|
||||
order.order_id,
|
||||
order.product_id,
|
||||
order.quantity,
|
||||
order.amount,
|
||||
order.shipping,
|
||||
order.tax,
|
||||
order.shipping_address,
|
||||
);
|
||||
dbg!(sql_string.clone());
|
||||
ret.push(sql_string);
|
||||
Ok(ret)
|
||||
}
|
||||
|
||||
async fn init() -> TransformerResult<String> {
|
||||
Ok(String::from(
|
||||
r"CREATE TABLE IF NOT EXISTS orders (order_id INT, product_id INT, quantity INT, amount FLOAT, shipping FLOAT, tax FLOAT, shipping_address VARCHAR(50), date_registered TIMESTAMP DEFAULT CURRENT_TIMESTAMP);",
|
||||
))
|
||||
}
|
||||
}
|
||||
|
||||
#[tokio::main(flavor = "current_thread")]
|
||||
async fn main() -> anyhow::Result<()> {
|
||||
env_logger::init();
|
||||
|
||||
// can use builder later
|
||||
let database_uri = std::env::var("DATABASE_URL")?;
|
||||
let kafka_uri = std::env::var("KAFKA_URL")?;
|
||||
let mut pipe = Pipe::new(database_uri, kafka_uri).await;
|
||||
|
||||
// This is async because this calls the async transform() function in Order
|
||||
pipe.start::<Order>().await?;
|
||||
Ok(())
|
||||
}
|
||||
1
wasmedge-kafka-mysql/kafka/order.json
Normal file
1
wasmedge-kafka-mysql/kafka/order.json
Normal file
@ -0,0 +1 @@
|
||||
{"order_id": 1,"product_id": 12,"quantity": 2,"amount": 56.0,"shipping": 15.0,"tax": 2.0,"shipping_address": "Mataderos 2312"}
|
||||
25
wasmedge-mysql-nginx/.docker/docker-compose.yml
Normal file
25
wasmedge-mysql-nginx/.docker/docker-compose.yml
Normal file
@ -0,0 +1,25 @@
|
||||
services:
|
||||
frontend:
|
||||
image: nginx:alpine
|
||||
ports:
|
||||
- 8090:80
|
||||
volumes:
|
||||
- ./frontend:/usr/share/nginx/html
|
||||
|
||||
backend:
|
||||
image: demo-microservice
|
||||
platform: wasi/wasm
|
||||
build:
|
||||
context: backend/
|
||||
ports:
|
||||
- 8080:8080
|
||||
environment:
|
||||
DATABASE_URL: mysql://root:whalehello@db:3306/mysql
|
||||
RUST_BACKTRACE: full
|
||||
restart: unless-stopped
|
||||
runtime: io.containerd.wasmedge.v1
|
||||
|
||||
db:
|
||||
image: mariadb:10.9
|
||||
environment:
|
||||
MYSQL_ROOT_PASSWORD: whalehello
|
||||
125
wasmedge-mysql-nginx/README.md
Normal file
125
wasmedge-mysql-nginx/README.md
Normal file
@ -0,0 +1,125 @@
|
||||
# Compose sample application
|
||||
|
||||
|
||||
|
||||
This sample demonstrates a web application with a WebAssembly (Wasm) microservice, written in Rust. The Wasm microservice is an HTTP API connected to a MySQL (MariaDB) database. The API is invoked via from JavaScript in a web interface serving static HTML. The microservice is compiled into WebAssembly (Wasm) and runs in the WasmEdge Runtime, a secure and lightweight alternative to natively compiled Rust apps in Linux containers. Checkout [this article](https://blog.logrocket.com/rust-microservices-server-side-webassembly/) or [this video](https://www.youtube.com/watch?v=VSqMPFr7SEs) to learn how the Rust code in this microservice works.
|
||||
|
||||
## Use with Docker Development Environments
|
||||
|
||||
You will need a version of Docker Desktop or Docker CLI with Wasm support.
|
||||
|
||||
* [Install Docker Desktop + Wasm (Beta)](https://docs.docker.com/desktop/wasm/)
|
||||
* [Install Docker CLI + Wasm](https://github.com/chris-crone/wasm-day-na-22/tree/main/server)
|
||||
|
||||
## WasmEdge server with Nginx proxy and MySQL database
|
||||
|
||||
Project structure:
|
||||
|
||||
```
|
||||
.
|
||||
+-- compose.yml
|
||||
|-- backend
|
||||
+-- Dockerfile
|
||||
|-- Cargo.toml
|
||||
|-- src
|
||||
+-- main.rs
|
||||
|-- frontend
|
||||
+-- index.html
|
||||
|-- js
|
||||
+-- app.js
|
||||
|-- db
|
||||
+-- orders.json
|
||||
|-- update_order.json
|
||||
```
|
||||
|
||||
The [compose.yml](compose.yml) file:
|
||||
|
||||
```yaml
|
||||
services:
|
||||
frontend:
|
||||
image: nginx:alpine
|
||||
ports:
|
||||
- 8090:80
|
||||
volumes:
|
||||
- ./frontend:/usr/share/nginx/html
|
||||
|
||||
backend:
|
||||
image: demo-microservice
|
||||
build:
|
||||
context: backend/
|
||||
platforms:
|
||||
- wasi/wasm32
|
||||
ports:
|
||||
- 8080:8080
|
||||
environment:
|
||||
DATABASE_URL: mysql://root:whalehello@db:3306/mysql
|
||||
RUST_BACKTRACE: full
|
||||
restart: unless-stopped
|
||||
runtime: io.containerd.wasmedge.v1
|
||||
|
||||
db:
|
||||
image: mariadb:10.9
|
||||
environment:
|
||||
MYSQL_ROOT_PASSWORD: whalehello
|
||||
```
|
||||
|
||||
The compose file defines an application with three services `frontend`, `backend` and `db`. The `frontend` is a simple Nginx server that hosts static web pages that access the `backend` web service, in the WasmEdge container, via HTTP port 8080. When deploying the application, docker compose maps port 8090 of the `frontend` service container to port 8090 of the host as specified in the file. Make sure that ports 8090 and 8080 on the host are not already being used.
|
||||
|
||||
## Deploy with docker compose
|
||||
|
||||
```bash
|
||||
$ docker compose up -d
|
||||
...
|
||||
⠿ Network wasmedge-mysql-nginx_default Created
|
||||
⠿ Container wasmedge-mysql-nginx-db-1 Created
|
||||
⠿ Container wasmedge-mysql-nginx-frontend-1 Created
|
||||
⠿ Container wasmedge-mysql-nginx-backend-1 Created
|
||||
```
|
||||
|
||||
## Expected result
|
||||
|
||||
```bash
|
||||
$ docker compose ps
|
||||
NAME COMMAND SERVICE STATUS PORTS
|
||||
wasmedge-mysql-nginx-backend-1 "order_demo_service.…" backend running 0.0.0.0:8080->8080/tcp, :::8080->8080/tcp
|
||||
wasmedge-mysql-nginx-db-1 "docker-entrypoint.s…" db running 3306/tcp
|
||||
wasmedge-mysql-nginx-frontend-1 "/docker-entrypoint.…" frontend running 0.0.0.0:8090->80/tcp, :::8090->80/tcp
|
||||
```
|
||||
|
||||
After the application starts, go to `http://localhost:8090` in your web browser to display the web frontend.
|
||||
|
||||
### Using the API with `curl`
|
||||
|
||||
As an alternative to the web frontend, you can use `curl` to interact with the WasmEdge API directly (the `backend` service).
|
||||
|
||||
When the WasmEdge web service receives a GET request to the `/init` endpoint, it would initialize the database with the `orders` table.
|
||||
|
||||
```bash
|
||||
curl http://localhost:8080/init
|
||||
```
|
||||
|
||||
When the WasmEdge web service receives a POST request to the `/create_order` endpoint, it extracts the JSON data from the POST body and inserts an `Order` record into the database table.
|
||||
To insert multiple records, use the `/create_orders` endpoint and POST a JSON array of `Order` objects:
|
||||
|
||||
```bash
|
||||
curl http://localhost:8080/create_orders -X POST -d @db/orders.json
|
||||
```
|
||||
|
||||
When the WasmEdge web service receives a GET request to the `/orders` endpoint, it gets all rows from the `orders` table and return the result set in a JSON array in the HTTP response.
|
||||
|
||||
```bash
|
||||
curl http://localhost:8080/orders
|
||||
```
|
||||
|
||||
When the WasmEdge web service receives a POST request to the `/update_order` endpoint, it extracts the JSON data from the POST body and update the `Order` record in the database table that matches the `order_id` in the input data.
|
||||
|
||||
```bash
|
||||
curl http://localhost:8080/update_order -X POST -d @db/update_order.json
|
||||
```
|
||||
|
||||
When the WasmEdge web service receives a GET request to the `/delete_order` endpoint, it deletes the row in the `orders` table that matches the `id` GET parameter.
|
||||
|
||||
```bash
|
||||
curl http://localhost:8080/delete_order?id=2
|
||||
```
|
||||
|
||||
13
wasmedge-mysql-nginx/backend/Cargo.toml
Normal file
13
wasmedge-mysql-nginx/backend/Cargo.toml
Normal file
@ -0,0 +1,13 @@
|
||||
[package]
|
||||
name = "order_demo_service"
|
||||
version = "0.1.0"
|
||||
edition = "2021"
|
||||
|
||||
[dependencies]
|
||||
anyhow = "1.0"
|
||||
serde_json = "1.0"
|
||||
serde = { version = "1.0", features = ["derive"] }
|
||||
url = "2.3"
|
||||
mysql_async_wasi = "0.30"
|
||||
hyper_wasi = { version = "0.15", features = ["full"] }
|
||||
tokio_wasi = { version = "1", features = ["io-util", "fs", "net", "time", "rt", "macros"] }
|
||||
29
wasmedge-mysql-nginx/backend/Dockerfile
Normal file
29
wasmedge-mysql-nginx/backend/Dockerfile
Normal file
@ -0,0 +1,29 @@
|
||||
# syntax=docker/dockerfile:1
|
||||
|
||||
FROM --platform=$BUILDPLATFORM rust:1.64 AS buildbase
|
||||
WORKDIR /src
|
||||
RUN <<EOT bash
|
||||
set -ex
|
||||
apt-get update
|
||||
apt-get install -y \
|
||||
git \
|
||||
clang
|
||||
rustup target add wasm32-wasi
|
||||
EOT
|
||||
# This line installs WasmEdge including the AOT compiler
|
||||
RUN curl -sSf https://raw.githubusercontent.com/WasmEdge/WasmEdge/master/utils/install.sh | bash
|
||||
|
||||
FROM buildbase AS build
|
||||
COPY Cargo.toml .
|
||||
COPY src ./src
|
||||
# Build the Wasm binary
|
||||
RUN --mount=type=cache,target=/usr/local/cargo/git/db \
|
||||
--mount=type=cache,target=/usr/local/cargo/registry/cache \
|
||||
--mount=type=cache,target=/usr/local/cargo/registry/index \
|
||||
cargo build --target wasm32-wasi --release
|
||||
# This line builds the AOT Wasm binary
|
||||
RUN /root/.wasmedge/bin/wasmedgec target/wasm32-wasi/release/order_demo_service.wasm order_demo_service.wasm
|
||||
|
||||
FROM scratch
|
||||
ENTRYPOINT [ "order_demo_service.wasm" ]
|
||||
COPY --link --from=build /src/order_demo_service.wasm /order_demo_service.wasm
|
||||
237
wasmedge-mysql-nginx/backend/src/main.rs
Normal file
237
wasmedge-mysql-nginx/backend/src/main.rs
Normal file
@ -0,0 +1,237 @@
|
||||
use hyper::service::{make_service_fn, service_fn};
|
||||
use hyper::{Body, Method, Request, Response, StatusCode, Server};
|
||||
pub use mysql_async::prelude::*;
|
||||
pub use mysql_async::*;
|
||||
use std::convert::Infallible;
|
||||
use std::net::SocketAddr;
|
||||
use std::result::Result;
|
||||
use std::collections::HashMap;
|
||||
use serde::{Deserialize, Serialize};
|
||||
|
||||
fn get_url() -> String {
|
||||
if let Ok(url) = std::env::var("DATABASE_URL") {
|
||||
let opts = Opts::from_url(&url).expect("DATABASE_URL invalid");
|
||||
if opts
|
||||
.db_name()
|
||||
.expect("a database name is required")
|
||||
.is_empty()
|
||||
{
|
||||
panic!("database name is empty");
|
||||
}
|
||||
url
|
||||
} else {
|
||||
"mysql://root:pass@127.0.0.1:3306/mysql".into()
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Serialize, Deserialize, Debug)]
|
||||
struct Order {
|
||||
order_id: i32,
|
||||
product_id: i32,
|
||||
quantity: i32,
|
||||
amount: f32,
|
||||
shipping: f32,
|
||||
tax: f32,
|
||||
shipping_address: String,
|
||||
}
|
||||
|
||||
impl Order {
|
||||
fn new(
|
||||
order_id: i32,
|
||||
product_id: i32,
|
||||
quantity: i32,
|
||||
amount: f32,
|
||||
shipping: f32,
|
||||
tax: f32,
|
||||
shipping_address: String,
|
||||
) -> Self {
|
||||
Self {
|
||||
order_id,
|
||||
product_id,
|
||||
quantity,
|
||||
amount,
|
||||
shipping,
|
||||
tax,
|
||||
shipping_address,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
async fn handle_request(req: Request<Body>, pool: Pool) -> Result<Response<Body>, anyhow::Error> {
|
||||
match (req.method(), req.uri().path()) {
|
||||
(&Method::GET, "/") => Ok(Response::new(Body::from(
|
||||
"The valid endpoints are /init /create_order /create_orders /update_order /orders /delete_order",
|
||||
))),
|
||||
|
||||
// Simply echo the body back to the client.
|
||||
(&Method::POST, "/echo") => Ok(Response::new(req.into_body())),
|
||||
|
||||
// CORS OPTIONS
|
||||
(&Method::OPTIONS, "/init") => Ok(response_build(&String::from(""))),
|
||||
(&Method::OPTIONS, "/create_order") => Ok(response_build(&String::from(""))),
|
||||
(&Method::OPTIONS, "/create_orders") => Ok(response_build(&String::from(""))),
|
||||
(&Method::OPTIONS, "/update_order") => Ok(response_build(&String::from(""))),
|
||||
(&Method::OPTIONS, "/delete_order") => Ok(response_build(&String::from(""))),
|
||||
(&Method::OPTIONS, "/orders") => Ok(response_build(&String::from(""))),
|
||||
|
||||
(&Method::GET, "/init") => {
|
||||
let mut conn = pool.get_conn().await.unwrap();
|
||||
"DROP TABLE IF EXISTS orders;".ignore(&mut conn).await?;
|
||||
"CREATE TABLE orders (order_id INT, product_id INT, quantity INT, amount FLOAT, shipping FLOAT, tax FLOAT, shipping_address VARCHAR(20));".ignore(&mut conn).await?;
|
||||
drop(conn);
|
||||
Ok(response_build("{\"status\":true}"))
|
||||
}
|
||||
|
||||
(&Method::POST, "/create_order") => {
|
||||
let mut conn = pool.get_conn().await.unwrap();
|
||||
|
||||
let byte_stream = hyper::body::to_bytes(req).await?;
|
||||
let order: Order = serde_json::from_slice(&byte_stream).unwrap();
|
||||
|
||||
"INSERT INTO orders (order_id, product_id, quantity, amount, shipping, tax, shipping_address) VALUES (:order_id, :product_id, :quantity, :amount, :shipping, :tax, :shipping_address)"
|
||||
.with(params! {
|
||||
"order_id" => order.order_id,
|
||||
"product_id" => order.product_id,
|
||||
"quantity" => order.quantity,
|
||||
"amount" => order.amount,
|
||||
"shipping" => order.shipping,
|
||||
"tax" => order.tax,
|
||||
"shipping_address" => &order.shipping_address,
|
||||
})
|
||||
.ignore(&mut conn)
|
||||
.await?;
|
||||
|
||||
drop(conn);
|
||||
Ok(response_build("{\"status\":true}"))
|
||||
}
|
||||
|
||||
(&Method::POST, "/create_orders") => {
|
||||
let mut conn = pool.get_conn().await.unwrap();
|
||||
|
||||
let byte_stream = hyper::body::to_bytes(req).await?;
|
||||
let orders: Vec<Order> = serde_json::from_slice(&byte_stream).unwrap();
|
||||
|
||||
"INSERT INTO orders (order_id, product_id, quantity, amount, shipping, tax, shipping_address) VALUES (:order_id, :product_id, :quantity, :amount, :shipping, :tax, :shipping_address)"
|
||||
.with(orders.iter().map(|order| {
|
||||
params! {
|
||||
"order_id" => order.order_id,
|
||||
"product_id" => order.product_id,
|
||||
"quantity" => order.quantity,
|
||||
"amount" => order.amount,
|
||||
"shipping" => order.shipping,
|
||||
"tax" => order.tax,
|
||||
"shipping_address" => &order.shipping_address,
|
||||
}
|
||||
}))
|
||||
.batch(&mut conn)
|
||||
.await?;
|
||||
|
||||
drop(conn);
|
||||
Ok(response_build("{\"status\":true}"))
|
||||
}
|
||||
|
||||
(&Method::POST, "/update_order") => {
|
||||
let mut conn = pool.get_conn().await.unwrap();
|
||||
|
||||
let byte_stream = hyper::body::to_bytes(req).await?;
|
||||
let order: Order = serde_json::from_slice(&byte_stream).unwrap();
|
||||
|
||||
"UPDATE orders SET product_id=:product_id, quantity=:quantity, amount=:amount, shipping=:shipping, tax=:tax, shipping_address=:shipping_address WHERE order_id=:order_id"
|
||||
.with(params! {
|
||||
"product_id" => order.product_id,
|
||||
"quantity" => order.quantity,
|
||||
"amount" => order.amount,
|
||||
"shipping" => order.shipping,
|
||||
"tax" => order.tax,
|
||||
"shipping_address" => &order.shipping_address,
|
||||
"order_id" => order.order_id,
|
||||
})
|
||||
.ignore(&mut conn)
|
||||
.await?;
|
||||
|
||||
drop(conn);
|
||||
Ok(response_build("{\"status\":true}"))
|
||||
}
|
||||
|
||||
(&Method::GET, "/orders") => {
|
||||
let mut conn = pool.get_conn().await.unwrap();
|
||||
|
||||
let orders = "SELECT * FROM orders"
|
||||
.with(())
|
||||
.map(&mut conn, |(order_id, product_id, quantity, amount, shipping, tax, shipping_address)| {
|
||||
Order::new(
|
||||
order_id,
|
||||
product_id,
|
||||
quantity,
|
||||
amount,
|
||||
shipping,
|
||||
tax,
|
||||
shipping_address,
|
||||
)},
|
||||
).await?;
|
||||
|
||||
drop(conn);
|
||||
Ok(response_build(serde_json::to_string(&orders)?.as_str()))
|
||||
}
|
||||
|
||||
(&Method::GET, "/delete_order") => {
|
||||
let mut conn = pool.get_conn().await.unwrap();
|
||||
|
||||
let params: HashMap<String, String> = req.uri().query().map(|v| {
|
||||
url::form_urlencoded::parse(v.as_bytes()).into_owned().collect()
|
||||
}).unwrap_or_else(HashMap::new);
|
||||
let order_id = params.get("id");
|
||||
|
||||
"DELETE FROM orders WHERE order_id=:order_id"
|
||||
.with(params! { "order_id" => order_id, })
|
||||
.ignore(&mut conn)
|
||||
.await?;
|
||||
|
||||
drop(conn);
|
||||
Ok(response_build("{\"status\":true}"))
|
||||
}
|
||||
|
||||
// Return the 404 Not Found for other routes.
|
||||
_ => {
|
||||
let mut not_found = Response::default();
|
||||
*not_found.status_mut() = StatusCode::NOT_FOUND;
|
||||
Ok(not_found)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// CORS headers
|
||||
fn response_build(body: &str) -> Response<Body> {
|
||||
Response::builder()
|
||||
.header("Access-Control-Allow-Origin", "*")
|
||||
.header("Access-Control-Allow-Methods", "GET, POST, OPTIONS")
|
||||
.header("Access-Control-Allow-Headers", "api,Keep-Alive,User-Agent,Content-Type")
|
||||
.body(Body::from(body.to_owned()))
|
||||
.unwrap()
|
||||
}
|
||||
|
||||
#[tokio::main(flavor = "current_thread")]
|
||||
async fn main() -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
|
||||
let opts = Opts::from_url(&*get_url()).unwrap();
|
||||
let builder = OptsBuilder::from_opts(opts);
|
||||
// The connection pool will have a min of 5 and max of 10 connections.
|
||||
let constraints = PoolConstraints::new(5, 10).unwrap();
|
||||
let pool_opts = PoolOpts::default().with_constraints(constraints);
|
||||
let pool = Pool::new(builder.pool_opts(pool_opts));
|
||||
|
||||
let addr = SocketAddr::from(([0, 0, 0, 0], 8080));
|
||||
let make_svc = make_service_fn(|_| {
|
||||
let pool = pool.clone();
|
||||
async move {
|
||||
Ok::<_, Infallible>(service_fn(move |req| {
|
||||
let pool = pool.clone();
|
||||
handle_request(req, pool)
|
||||
}))
|
||||
}
|
||||
});
|
||||
let server = Server::bind(&addr).serve(make_svc);
|
||||
if let Err(e) = server.await {
|
||||
eprintln!("server error: {}", e);
|
||||
}
|
||||
Ok(())
|
||||
}
|
||||
25
wasmedge-mysql-nginx/compose.yml
Normal file
25
wasmedge-mysql-nginx/compose.yml
Normal file
@ -0,0 +1,25 @@
|
||||
services:
|
||||
frontend:
|
||||
image: nginx:alpine
|
||||
ports:
|
||||
- 8090:80
|
||||
volumes:
|
||||
- ./frontend:/usr/share/nginx/html
|
||||
|
||||
backend:
|
||||
image: demo-microservice
|
||||
platform: wasi/wasm
|
||||
build:
|
||||
context: backend/
|
||||
ports:
|
||||
- 8080:8080
|
||||
environment:
|
||||
DATABASE_URL: mysql://root:whalehello@db:3306/mysql
|
||||
RUST_BACKTRACE: full
|
||||
restart: unless-stopped
|
||||
runtime: io.containerd.wasmedge.v1
|
||||
|
||||
db:
|
||||
image: mariadb:10.9
|
||||
environment:
|
||||
MYSQL_ROOT_PASSWORD: whalehello
|
||||
47
wasmedge-mysql-nginx/db/orders.json
Normal file
47
wasmedge-mysql-nginx/db/orders.json
Normal file
@ -0,0 +1,47 @@
|
||||
[
|
||||
{
|
||||
"order_id": 1,
|
||||
"product_id": 12,
|
||||
"quantity": 2,
|
||||
"amount": 56.0,
|
||||
"shipping": 15.0,
|
||||
"tax": 2.0,
|
||||
"shipping_address": "Mataderos 2312"
|
||||
},
|
||||
{
|
||||
"order_id": 2,
|
||||
"product_id": 15,
|
||||
"quantity": 3,
|
||||
"amount": 256.0,
|
||||
"shipping": 30.0,
|
||||
"tax": 16.0,
|
||||
"shipping_address": "1234 NW Bobcat"
|
||||
},
|
||||
{
|
||||
"order_id": 3,
|
||||
"product_id": 11,
|
||||
"quantity": 5,
|
||||
"amount": 536.0,
|
||||
"shipping": 50.0,
|
||||
"tax": 24.0,
|
||||
"shipping_address": "20 Havelock"
|
||||
},
|
||||
{
|
||||
"order_id": 4,
|
||||
"product_id": 8,
|
||||
"quantity": 8,
|
||||
"amount": 126.0,
|
||||
"shipping": 20.0,
|
||||
"tax": 12.0,
|
||||
"shipping_address": "224 Pandan Loop"
|
||||
},
|
||||
{
|
||||
"order_id": 5,
|
||||
"product_id": 24,
|
||||
"quantity": 1,
|
||||
"amount": 46.0,
|
||||
"shipping": 10.0,
|
||||
"tax": 2.0,
|
||||
"shipping_address": "No.10 Jalan Besar"
|
||||
}
|
||||
]
|
||||
9
wasmedge-mysql-nginx/db/update_order.json
Normal file
9
wasmedge-mysql-nginx/db/update_order.json
Normal file
@ -0,0 +1,9 @@
|
||||
{
|
||||
"order_id": 3,
|
||||
"product_id": 12,
|
||||
"quantity": 2,
|
||||
"amount": 56.0,
|
||||
"shipping": 15.0,
|
||||
"tax": 2.0,
|
||||
"shipping_address": "123 Main Street"
|
||||
}
|
||||
102
wasmedge-mysql-nginx/frontend/index.html
Normal file
102
wasmedge-mysql-nginx/frontend/index.html
Normal file
@ -0,0 +1,102 @@
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
<title>Demo App</title>
|
||||
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.2.2/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-Zenh87qX5JnK2Jl0vWa8Ck2rdkQ2Bzep5IDxbcnCeuOxjzrPF/et3URy9Bv1WTRi" crossorigin="anonymous" />
|
||||
<style>.d-none { display: none; }</style>
|
||||
</head>
|
||||
<body class="mb-5">
|
||||
<div class="container mt-5">
|
||||
<div id="app-loading-display">
|
||||
<h1>Loading...</h1>
|
||||
</div>
|
||||
|
||||
<div id="order-display" class="d-none">
|
||||
<h1>Welcome to the Demo!</h1>
|
||||
<p>This application is served using nginx for the website, Wasm for the backend, and MariaDB for the database.</p>
|
||||
|
||||
<div id="order-empty-text" class="d-none">
|
||||
<em>There are currently no orders to display!</em>
|
||||
</div>
|
||||
|
||||
<table id="order-table" class="d-none table table-striped">
|
||||
<thead>
|
||||
<tr>
|
||||
<th>Id</th>
|
||||
<th>Product Id</th>
|
||||
<th>Quantity</th>
|
||||
<th>Amount</th>
|
||||
<th>Shipping</th>
|
||||
<th>Tax</th>
|
||||
<th>Address</th>
|
||||
<th></th>
|
||||
</tr>
|
||||
</thead>
|
||||
<tbody></tbody>
|
||||
</table>
|
||||
|
||||
<hr />
|
||||
|
||||
<div id="add-order-wrapper" class="d-none row">
|
||||
<div class="col-6">
|
||||
<div class="accordion" id="accordionExample">
|
||||
<div class="accordion-item">
|
||||
<h2 class="accordion-header" id="addOrderHeading">
|
||||
<button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#addOrder" aria-controls="addOrder">
|
||||
Add an order
|
||||
</button>
|
||||
</h2>
|
||||
|
||||
<div id="addOrder" class="accordion-collapse collapse p-3" aria-labelledby="addOrderHeading" data-bs-parent="#accordionExample">
|
||||
<form id="add-order-form">
|
||||
<div class="mb-3">
|
||||
<label for="order-id" class="form-label">Order Id</label>
|
||||
<input type="number" required class="form-control" id="order-id" aria-describedby="orderIdHelp">
|
||||
<div id="orderIdHelp" class="form-text">The ID of the order</div>
|
||||
</div>
|
||||
<div class="mb-3">
|
||||
<label for="product-id" class="form-label">Product Id</label>
|
||||
<input type="number" required class="form-control" id="product-id" aria-describedby="productIdHelp">
|
||||
<div id="productIdHelp" class="form-text">The ID of the product</div>
|
||||
</div>
|
||||
<div class="mb-3">
|
||||
<label for="quantity" class="form-label">Quantity</label>
|
||||
<input type="number" required class="form-control" id="quantity" aria-describedby="quantityHelp">
|
||||
<div id="quantityHelp" class="form-text">How many of the product?</div>
|
||||
</div>
|
||||
<div class="mb-3">
|
||||
<label for="amount" class="form-label">Amount</label>
|
||||
<input type="number" required class="form-control" id="amount" aria-describedby="amountHelp">
|
||||
<div id="amountHelp" class="form-text">The total amount</div>
|
||||
</div>
|
||||
<div class="mb-3">
|
||||
<label for="tax" class="form-label">Tax</label>
|
||||
<input type="number" required class="form-control" id="tax" aria-describedby="taxHelp">
|
||||
<div id="taxHelp" class="form-text">The total amount of tax</div>
|
||||
</div>
|
||||
<div class="mb-3">
|
||||
<label for="shippingAmount" class="form-label">Shipping Amount</label>
|
||||
<input type="number" required class="form-control" id="shippingAmount" aria-describedby="shippingAmountHelp">
|
||||
<div id="shippingAmountHelp" class="form-text">The total amount for shipping</div>
|
||||
</div>
|
||||
<div class="mb-3">
|
||||
<label for="shippingAddress" class="form-label">Shipping Address</label>
|
||||
<input type="text" required class="form-control" id="shippingAddress" aria-describedby="addressHelp">
|
||||
<div id="addressHelp" class="form-text">Where to send the order</div>
|
||||
</div>
|
||||
|
||||
<input type="submit" class="btn btn-success" value="Add Order" />
|
||||
</form>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
|
||||
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.2.2/dist/js/bootstrap.bundle.min.js" integrity="sha384-OERcA2EqjJCMA+/3y+gxIOqMEjwtxJY7qPCqsdltbNJuaOe923+mo//f6V8Qbsw3" crossorigin="anonymous"></script>
|
||||
<script type="text/javascript" src="/js/app.js"></script>
|
||||
</body>
|
||||
</html>
|
||||
135
wasmedge-mysql-nginx/frontend/js/app.js
Normal file
135
wasmedge-mysql-nginx/frontend/js/app.js
Normal file
@ -0,0 +1,135 @@
|
||||
(function() {
|
||||
let orders = null;
|
||||
const appLoadingEle = document.getElementById("app-loading-display");
|
||||
const orderWrapperEle = document.getElementById("order-display");
|
||||
const orderEmptyTextEle = document.getElementById("order-empty-text");
|
||||
const orderTableEle = document.getElementById("order-table");
|
||||
const orderTableBodyEle = document.querySelector("#order-table tbody");
|
||||
const addOrderEle = document.getElementById("add-order-wrapper");
|
||||
const addOrderForm = document.getElementById("add-order-form");
|
||||
|
||||
const orderIdField = document.getElementById("order-id");
|
||||
const productIdField = document.getElementById("product-id");
|
||||
const quantityField = document.getElementById("quantity");
|
||||
const amountField = document.getElementById("amount");
|
||||
const taxField = document.getElementById("tax");
|
||||
const shippingField = document.getElementById("shippingAmount");
|
||||
const shippingAddressField = document.getElementById("shippingAddress");
|
||||
|
||||
function fetchOrders() {
|
||||
fetch("http://localhost:8080/orders")
|
||||
.then(r => r.json())
|
||||
.then(r => orders = r)
|
||||
.then(renderOrders)
|
||||
.catch((e) => {
|
||||
init();
|
||||
});
|
||||
}
|
||||
|
||||
function init() {
|
||||
fetch("http://localhost:8080/init")
|
||||
.then(() => fetchOrders())
|
||||
.catch((e) => displayError(e));
|
||||
}
|
||||
|
||||
function renderOrders() {
|
||||
appLoadingEle.classList.add("d-none");
|
||||
orderWrapperEle.classList.remove("d-none");
|
||||
addOrderEle.classList.remove("d-none");
|
||||
|
||||
if (orders.length === 0) {
|
||||
orderEmptyTextEle.classList.remove("d-none");
|
||||
orderTableEle.classList.add("d-none");
|
||||
return;
|
||||
}
|
||||
|
||||
orderEmptyTextEle.classList.add("d-none");
|
||||
orderTableEle.classList.remove("d-none");
|
||||
|
||||
while (orderTableBodyEle.firstChild) {
|
||||
orderTableBodyEle.removeChild(orderTableBodyEle.firstChild);
|
||||
}
|
||||
|
||||
orders.forEach((order) => {
|
||||
const orderId = order.order_id;
|
||||
|
||||
const row = document.createElement("tr");
|
||||
|
||||
row.appendChild(createCell(order.order_id));
|
||||
row.appendChild(createCell(order.product_id));
|
||||
row.appendChild(createCell(order.quantity));
|
||||
row.appendChild(createCell(order.amount));
|
||||
row.appendChild(createCell(order.shipping));
|
||||
row.appendChild(createCell(order.tax));
|
||||
row.appendChild(createCell(order.shipping_address));
|
||||
|
||||
const actionCell = document.createElement("td");
|
||||
|
||||
const deleteButton = document.createElement("button");
|
||||
deleteButton.classList.add(...["btn","btn-sm","btn-danger"]);
|
||||
deleteButton.innerText = "Delete";
|
||||
|
||||
deleteButton.addEventListener("click", (e) => {
|
||||
e.preventDefault();
|
||||
deleteOrder(orderId);
|
||||
});
|
||||
|
||||
actionCell.appendChild(deleteButton);
|
||||
|
||||
row.appendChild(actionCell);
|
||||
|
||||
orderTableBodyEle.appendChild(row);
|
||||
});
|
||||
}
|
||||
|
||||
function createCell(contents) {
|
||||
const cell = document.createElement("td");
|
||||
cell.innerText = contents;
|
||||
return cell;
|
||||
}
|
||||
|
||||
function deleteOrder(orderId) {
|
||||
fetch(`http://localhost:8080/delete_order?id=${orderId}`)
|
||||
.then(() => fetchOrders());
|
||||
}
|
||||
|
||||
function displayError(err) {
|
||||
alert("Error:" + err);
|
||||
}
|
||||
|
||||
function onAddFormSubmit(e) {
|
||||
e.preventDefault();
|
||||
|
||||
const data = {
|
||||
order_id : parseFloat(orderIdField.value),
|
||||
product_id : parseFloat(productIdField.value),
|
||||
quantity : parseFloat(quantityField.value),
|
||||
amount : parseFloat(amountField.value),
|
||||
shipping : parseFloat(shippingField.value),
|
||||
tax : parseFloat(taxField.value),
|
||||
shipping_address : shippingAddressField.value,
|
||||
};
|
||||
|
||||
fetch("http://localhost:8080/create_order", {
|
||||
method: "POST",
|
||||
body: JSON.stringify(data),
|
||||
headers: { "Content-type": "application/json" },
|
||||
}).then(() => fetchOrders())
|
||||
.then(() => resetAddOrderForm());
|
||||
|
||||
alert("Order added");
|
||||
}
|
||||
|
||||
function resetAddOrderForm() {
|
||||
orderIdField.value = "";
|
||||
productIdField.value = "";
|
||||
quantityField.value = "";
|
||||
amountField.value = "";
|
||||
shippingField.value = "";
|
||||
taxField.value = "";
|
||||
shippingAddressField.value = "";
|
||||
}
|
||||
|
||||
fetchOrders();
|
||||
addOrderForm.addEventListener("submit", onAddFormSubmit);
|
||||
})();
|
||||
Loading…
Reference in New Issue
Block a user