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Update CLI instructions to use cargo-lambda with the output-format flag #446

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Mar 11, 2022
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Update CLI instructions to use cargo-lambda with the output-format flag #446

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10 changes: 5 additions & 5 deletions README.md
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Expand Up @@ -92,18 +92,18 @@ You can find the `bootstrap` binary for your function under the `target/lambda`

#### 2.1. Deploying with the AWS CLI

First, you will need to create a ZIP archive of your Lambda function. For example, if you are using the `basic` example and aarch64-unknown-linux-gnu as your target, you can run:
First, you will need to create a ZIP archive of your Lambda function. Cargo-lambda can do that for you automatically when it builds your binary if you add the `output-format` flag. For example, if you are using the `basic` example and aarch64-unknown-linux-gnu as your target, you can run:

```bash
zip -j lambda.zip target/lambda/basic/bootstrap
cargo lambda build --release --target aarch64-unknown-linux-gnu --output-format zip
```

Now that we have a deployment package (`lambda.zip`), we can use the [AWS CLI](https://aws.amazon.com/cli/) to create a new Lambda function. Make sure to replace the execution role with an existing role in your account!
Now that we have a deployment package (`target/lambda/basic/bootstrap.zip`), we can use the [AWS CLI](https://aws.amazon.com/cli/) to create a new Lambda function. Make sure to replace the execution role with an existing role in your account!

```bash
$ aws lambda create-function --function-name rustTest \
--handler doesnt.matter \
--zip-file fileb://./lambda.zip \
--handler bootstrap \
--zip-file fileb://./target/lambda/basic/bootstrap.zip \
--runtime provided.al2 \ # Change this to provided.al if you would like to use Amazon Linux 1.
--role arn:aws:iam::XXXXXXXXXXXXX:role/your_lambda_execution_role \
--environment Variables={RUST_BACKTRACE=1} \
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