AWS Transcribe

Deploy to your own AWS

• Setup AWS CLI and credential configuration (aws configure).
• Run yarn to install all dependencies.
• Run yarn build to build both front end and back end.
• Run yarn bootstrap to initialize AWS CDK deployment.
• Run yarn deploy to do the actual deployment.

If the deployment is successful, the cloudfront URL will be displayed in the output like:

Outputs:
AwsTranscribeDemoStack.CloudFrontURL = xxx.cloudfront.net

• Static website built by React and hosted on S3.
• Upload audio file via website (click upload button):
  • Call GetToken Lambda function via API gateway to get pre-signed URL for Audio File bucket.
  • Use S3 JS SDK to upload audio file directly to S3 with the pre-signed URL returned above.
    • Newly uploaded audio file will trigger NewAudio Lambda function which will:
      • Create a record in DynamoDB
      • Publish the record ID to NewAudio Topic in SNS
      • SNS will trigger TranscribeAudio Lambda function to submit audio transcription job via Amazon Transcribe service API
• Check audio transcription status via website (click search button):
  • Call GetAudios Lambda function via API gateway to get transcription status
    • After getting record ID from DB, check the corresponding transcription job via Amazon Transcribe service API.
    • If the job is ready, update the result URL to DB and return it to frontend.
    • If the job is still processing, do nothing.