Google API

Do I need a Google API key to use ProMaps?

NEW: June 11th 2018

Yes. While Google used to permit "keyless" usage in a variety of situations, starting on June 11th 2018, "you’ll need to enable billing with a credit card and have a valid API key for all projects."

Some map services will still work without an API key but not well. Here are the details from Google's announcement:

"Keyless calls to the Maps JavaScript API and Street View API will return low-resolution maps watermarked with 'for development purposes only.' Keyless calls to any of the following APIs will return an error: Maps Static API (including Static Street View), Directions API, Distance Matrix API, Geocoding API, Geolocation API, Places API, Roads API, and Time Zone API."

Fortunately, you'll likely never incur any actual charges on your Google Maps API key: along with requiring an API key, Google is also allowing $200 in free billing credits per month. This means most users will never incur any API charges. Here are the details of this $200 credit and how Google see it being applied: API piricing questions.

Note that having an API key was always a requirement if you wanted to route more than 8 properties at a time in ProMaps: with an API key you can create routes with 23 waypoints. More here: routing limits.

(Here are those usage limits for google maps api: )

Get an API key

Follow the instructions here to get a "Standard API Key":

You'll need to enable the access to the following 3 APIs to enable all features of ProMaps:

  • Maps JavaScript API
  • GeoCoding API
  • Directions API

Adding a Key to ProMaps

Note: These instructions only apply to ProMaps 1.05+. If you're looking to add your Google API key to ProMaps 1.03, please see the docs here.

If you're running ProMaps build 1.053 or earlier, before adding your API key to ProMaps, you'll need to make one small change to the MapSettings table; Select the "Use global storage" option under the Storage tab of the MapSettings::GoogleAPIKey field. This will allow the GeoCoding scripts to use the API key when querying Google's servers.

If you already have a maps API, add it to purchased version of ProMaps on the "General Settings" section of the Settings tab. API keys are supported in version 1.05 and higher. The quit and re-open ProMaps to put the new key into use.

If you have an older version of ProMaps, upgrade pricing is 40% off: please for an upgrade code.

Predicting Usage

With Google's new pricing on their API, it's a bit difficult to accurately predict the amount of credit that will be used for each ProMaps solution, but let's take a look at the things in ProMaps that will use the API:

Loading the map:

Each time the regular map is loaded, including when filters are applied, the "Refresh Map" button is clicked, or the layout is refreshed, will be considered a "Map Load" from Google. These are priced at 0.007 USD per each for the first 100,000, so it would take 28,572 map loads to exceed the $200 monthly credit.

Loading the Route map:

Depending on whether you have more than 10 waypoints/properties selected or not, loading the route map will cost either 0.005 or 0.01 USD per each for the first 100,000 loads. This means 20,000-40,000 loads of the Route map could exceed the $200 monthly credit.

GeoCoding or Constraining:

Since we need to get the geolocation of each property in your database, we use the GeoCode API to retrieve that from the address. Each of these calls costs 0.005 USD. Additionally, any time you do a find in the constrain map, we use the Distance API, which also costs 0.005 USD per each.

Since all of these calls to the different APIs add up, you can see why it's difficult to predict the usage based on the number of users in the solution. It's really something that would become more apparent after a few months of use.

Another thing to consider with this is that you can set Quotas in your Google account that limit the API usage so that you'll never exceed the $200 credit. The result of this, though, is that further calls to the API beyond the quota will fail and the map will no longer load. Details on this can be found in the "Manage Your Cost of Use" section of Google's docs here:

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