npm install @googlemaps/addressvalidation

/** * This snippet has been automatically generated and should be regarded as a code template only. * It will require modifications to work. * It may require correct/in-range values for request initialization. * TODO(developer): Uncomment these variables before running the sample. *//** *  Required. The address being validated. Unformatted addresses should be *  submitted via `address_lines` google.type.PostalAddress.address_lines. *  The total length of the fields in this input must not exceed 300 *  characters. *  Supported regions can be found in the *  FAQ (https://developers.google.com/maps/documentation/address-validation/faq#which_regions_are_currently_supported). *  The language_code google.type.PostalAddress.language_code  value in the *  input address is reserved for future uses and is ignored today. The *  validated address result will be populated based on the preferred language *  for the given address, as identified by the system. *  The Address Validation API ignores the values in *  recipients google.type.PostalAddress.recipients  and *  organization google.type.PostalAddress.organization. Any values in those *  fields will be discarded and not returned. Please do not set them. */// const address = {}/** *  This field must be empty for the first address validation request. If *  more requests are necessary to fully validate a single address (for *  example if the changes the user makes after the initial validation need to *  be re-validated), then each followup request must populate this field with *  the *  response_id google.maps.addressvalidation.v1.ValidateAddressResponse.response_id *  from the very first response in the validation sequence. */// const previousResponseId = 'abc123'/** *  Enables USPS CASS compatible mode. This affects _only_ the *  google.maps.addressvalidation.v1.ValidationResult.usps_data  field of *  google.maps.addressvalidation.v1.ValidationResult. Note: for USPS CASS *  enabled requests for addresses in Puerto Rico, a *  google.type.PostalAddress.region_code  of the `address` must be provided *  as "PR", or an google.type.PostalAddress.administrative_area  of the *  `address` must be provided as "Puerto Rico" (case-insensitive) or "PR". *  It's recommended to use a componentized `address`, or alternatively specify *  at least two google.type.PostalAddress.address_lines  where the first line *  contains the street number and name and the second line contains the city, *  state, and zip code. */// const enableUspsCass = true// Imports the Addressvalidation libraryconst {AddressValidationClient} = require('@googlemaps/addressvalidation').v1;// Instantiates a clientconst addressvalidationClient = newAddressValidationClient();async function callValidateAddress() {  // Construct request  const request = {    address: {      regionCode: 'US',      addressLines: ['1600 Amphitheatre Pkwy', 'Mountain View CA 94040'],    },  };  // Run request  const response = await addressvalidationClient.validateAddress(request);  console.log(response);}callValidateAddress();