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aws-python-rest-api-with-pymongo

Create the Mongo Atlas backend

  1. Follow Part 1: Cluster Creation of this artice to create a cluster on Mongo Atlas' Free Tier.

Deploy the Serverless API to AWS

  1. Install Serverless

    npm install -g serverless
    
  2. Install serverless-python-requirements

    npm i --save serverless-python-requirements
    
  3. Define necessary environment variables

    Append this to your ~/.bash_profile

    export MONGO_DB_USER=
    export MONGO_DB_PASS=
    export MONGO_DB_NAME=SampleDatabase
    export MONGO_COLLECTION_NAME=SampleCollection
    export MONGO_DB_URL=
    
  4. Deploy the API

    sls deploy
    

    Your results should look something like this:

    Serverless: Stack update finished...
    Service Information
    service: serverless-pymongo-item-api
    stage: dev
    region: us-east-1
    stack: serverless-pymongo-item-api-dev
    resources: 28
    api keys:
      None
    endpoints:
      POST - https://0xfyi15qci.execute-api.us-east-1.amazonaws.com/dev/item
      GET - https://0xfyi15qci.execute-api.us-east-1.amazonaws.com/dev/item
      GET - https://0xfyi15qci.execute-api.us-east-1.amazonaws.com/dev/item/{id}
      DELETE - https://0xfyi15qci.execute-api.us-east-1.amazonaws.com/dev/item/{id}
    functions:
      create: serverless-pymongo-item-api-dev-create
      list: serverless-pymongo-item-api-dev-list
      get: serverless-pymongo-item-api-dev-get
      delete: serverless-pymongo-item-api-dev-delete
    layers:
      None
    Serverless: Removing old service artifacts from S3...
    Serverless: Run the "serverless" command to setup monitoring, troubleshooting and testing.
    

Test the API by Creating and Querying items

Substitute your endpoints into these curl commands to test the Create, Read, and Delete operations

CREATE

curl --request POST \
  --url https://0xfyi15qci.execute-api.us-east-1.amazonaws.com/dev/item \
  --header 'content-type: application/json' \
  --data '{
	"attribute_1": "Pet",
	"attribute_2": "Rock"
}'

Expected Response

204 status

{
  "_id": "c6f03ca0-f792-11e9-9534-260a4b91bfe9",
  "data": {
    "attribute_1": "Pet",
    "attribute_2": "Rock"
  }
}

GET

curl --request GET \
  --url https://0xfyi15qci.execute-api.us-east-1.amazonaws.com/dev/item/c6f03ca0-f792-11e9-9534-260a4b91bfe9 \
  --header 'content-type: application/json'

Expected Response

200 status

{
  "_id": "c6f03ca0-f792-11e9-9534-260a4b91bfe9",
  "data": {
    "attribute_1": "Pet",
    "attribute_2": "Rock"
  }
}

LIST

curl --request GET \
  --url https://0xfyi15qci.execute-api.us-east-1.amazonaws.com/dev/item \
  --header 'content-type: application/json'

Expected Response

200 status

{
  "response_items": [
    {
      "_id": "c6f03ca0-f792-11e9-9534-260a4b91bfe9",
      "data": {
        "attribute_1": "Pet",
        "attribute_2": "Rock"
      }
    },
    {
      "_id": "717c5f36-f799-11e9-a921-1e0e685be73c",
      "data": {
        "attribute_1": "Pete",
        "attribute_2": "Rock"
      }
    }
  ],
  "filter": null
}

Delete

curl --request DELETE \
  --url https://0xfyi15qci.execute-api.us-east-1.amazonaws.com/dev/item/c6f03ca0-f792-11e9-9534-260a4b91bfe9 \
  --header 'content-type: application/json'

Expected Response

204 status