A simpler implementation of rust in a lambda with api gateway v1 in front of it
- Node.js
- NPM / Yarn
- Rust
- Cargo
- x86_64-unknown-linux-musl (*)
- Docker
- Docker Compose
If you are going to build this project locally, in order to build the project
properly to use in AWS Lambda, its expected that you install the
x86_64-unknown-linux-musl target on all platforms with:
$ rustup target add x86_64-unknown-linux-musl
On Linux platforms, you will need to install musl-tools
On Mac OSX, you will need to install a MUSL cross compilation toolchain:
$ brew install filosottile/musl-cross/musl-cross
In the root of the project, install Node.js dependencies:
yarn
In the functions/api directory, install Rust dependencies (only if you want to modify something on Rust project):
cargo build
To configure localstack locally, put this configuration on your ~/.aws/credentials:
[default]
aws_access_key_id = temp
aws_secret_access_key = temp
Get localstack up and running:
yarn docker:up:logs
Use env var DEBUG=1 to see all logs:
DEBUG=1 yarn docker:up:logs
After that, deploy with the command:
yarn deploy:local
To make a request, get the URL given from localstack + the path set in
serverless.yml (/hello, in this case) and use curl:
curl -i -X POST http://localhost:4566/restapis/SOME_ID/local/_user_request_/hello -H 'Content-Type: application/json' -d '{"first_name": "John", "last_name": "Doe"}'
You should see the response:
Data: {"message": "The name is John Doe"}%
The data is being validated with serde. If you don't pass some of the required
keys (first_name or last_name in this case), you will see an error message.
Try calling without last_name, for example:
curl -i -X POST http://localhost:4566/restapis/SOME_ID/local/_user_request_/hello -H 'Content-Type: application/json' -d '{"first_name": "John"}'
You should see the response:
{"error":true,"message":"Deserialization error: missing field `last_name` at line 1 column 49"}%
MIT