Phone validation API using Go

Motivation

Every business has the need to verify phone numbers in order to guarantee that they exist or in case we need to contact a specific customer or send a marketing SMS. The goal with this tool is to allow all businesses to deploy this solution in-house.

Install

Testing locally:

make docker-up 
make migrate

You can now call the API using curl or any other tool.

It will instantiate 2 containers (one MySQL and one executing the binary with the tool in development mode). In Development mode you can test the API and see the results in the output of docker-compose:

phovalapp_1_d00e1ca2feb7 | 2018/12/07 09:56:58 172.21.0.1:36848 - "HTTP/1.1 POST /phone/verification?phone_number=963695658&country_code=351"
phovalapp_1_d00e1ca2feb7 | 2018/12/07 09:56:58 SMS was sent: '{351 9611111111 This is your code: 799184
phovalapp_1_d00e1ca2feb7 |  phoval}'

Run the http server on your machine or in production

Define the following environment variables for AWS SES and MySQL Database configuration:

export AWS_SDK_LOAD_CONFIG=1
export AWS_ACCESS_KEY_ID=XXXXXX
export AWS_SECRET_ACCESS_KEY=XXXXXX
export AWS_DEFAULT_REGION=XXXXXX
export DB_USER=XXXXXX
export DB_PASSWORD=XXXXXX
export DB_HOST=XXXXXX
export DB_PORT=3306
export DB_NAME=XXXXXX

make build
make migrate
./bin/phoval-{linux,mac} or ./bin/phoval-windows.exe {flags}

Usage

• addr: Http network address and port to bind (e.g. 192.168.0.1:4000)
• userdb: database user
• passworddb: database user password
• hostdb: database host
• namedb: database name
• env: environment ("prod", "dev" or testing) - it will use a different SMS implementation according to the environment value.
• brand: brand name used in the SMS to specify the where it comes (e.g. phoval-brand)
• apikey: api key to protect the service. By default it's changeme. Better to change it in production.
• template-folder: template folder where are the SMS templates. Currently it's in messages folder.

Example:

bin/phoval-linux -addr=phoval-app.com:4000 -userdb=myDbUser -passworddb=myDbPassword -hostdb=phovaldb.com -namedb=phoval -env=prod -brand=phoval -apikey=secret -template-folder=/usr/messages/

API usage

Arguments:

• phone_number (string): phone number
• country code (string): needs to exist (it does not include the 00 or + as prefix)
• locale (optional, string): locale used to fetch the right message translation inside pkg/phoval/messages (only en locale supported at this moment)

Create a new phone number verification

POST /phone/verification&phone_number=919999999&country_code=351&locale=en

Responses

204: Verification was created with success. verification_id is in the header.

400: There is validation error with the arguments that were passed.

Phone number validation

PUT /phone/verification&phone_number=919999999&country_code=351&code=768782

204: Verification was validated with success

409: Verification does not exist or Verification exists and it was already validated

Contribution

How can you help and contribute to this tool:

• Creating issues with ideas
• Creating PRs of those ideas

Development environment:

Set the environment variables:

export DB_USER=root
export DB_PASSWORD=root
export DB_HOST=127.0.0.1
export DB_PORT=3306
export DB_NAME=verif2fa

make docker-up
make migrate
make deps
make run