Faker.js: Zipcode and state don't match

[si-mikey]

Is there a way to make faker.address.zipCode match a state, eg.
faker.address.zipCode('NY') and it will generate ny zip codes?

[nikmash]

I'm curious about this too. Anyone know if we can generate state specific zip codes?

[si-mikey]

@nikmash from the looks of it, it seems just to be random method specific data.

[nikmash]

@si-mikey got it. Not ideal for testing with systems that do geocode resolution.

[Marak]

@si-mikey @nikmash

This seems like a useful feature to have.

I don't know exactly how, but it seems like there is a known algorithm for determining zipcode min max ranges by state?

Check this out: http://www.structnet.com/instructions/zip_min_max_by_state.html

If anyone could turn this into code, or find an existing JavaScript solution which does, I'd be glad to add this feature to faker.

Good suggestion, thanks!

[ClarenceL]

This needs to be added, for one project we wanted to generate sandbox Stripe accounts for our test server but Stripe even in sandbox mode requires valid zip codes. Generating a set of address fields that are valid at least by city, state, zip would be really great.

[karllhughes]

I am going to start working on this. My current thought is to use davglass/zipcodes to support something like this:

// Lookup zip code by state
faker.address.zipCodeByState('CA');

// Lookup zip code by city and state
faker.address.zipCodeByCityAndState('Cupertino', 'CA');

Welcome to feedback on this strategy though!

[karllhughes]

I ended up not using @davglass's repo as I didn't want to introduce a new dependency and it doesn't account for localization in the same way as we would need. The PR I just made (#600) implements a zipCodeByState method that uses a new descriptor file to find min and max zip codes based on the two-letter state abbreviation.

[mkiddTempus]

Some of the min max numbers are incorrect as they left off the leading 0. For example: CT, MA, ME, NH, NJ, NY, RI, and VT.

I looked at the tests and none of the selected states zip codes would have this issue.