Suggest Switzerland
BetaSuggest a Swiss address field.
https://api.pro6pp.nl/v2/suggest/ch/postalCodeOverview
Returns postal code suggestions for a partly typed postalCode.
ParametersQuery string
The partial postalCode contains at least 1 digit.
- Example
2000- Pattern
^[0-9].*$
The amount of results returned, a number between 1 and 999. Default value is 10.
- Default
10- Min
1- Max
999
The page to return, the variables for the next/previous pages can be found in the results Link header.
Responses
| Field | Type | Example value | Description |
|---|---|---|---|
| country | string | "Switzerland" | The country's name in English, "Switzerland". |
| countryCode | string | "CH" | ISO 3166-1 alpha-2 code of the country, "CH". |
| lat | numberNullable | 46.995 | Representative latitude of the postal code. A Swiss postal code can span several municipalities; in that case this is the centroid of the dominant municipality (the one with the most addresses). |
| lng | numberNullable | 6.929 | Representative longitude of the postal code. A Swiss postal code can span several municipalities; in that case this is the centroid of the dominant municipality (the one with the most addresses). |
| settlements | array of string | ["Neuchâtel"] | All municipalities that share this postal code. The representative lat/lng correspond to the dominant (largest by address count) one. |
| postalCode | string | "2000" | The four-digit postal code, such as "4001". |
| districts | array of string | not in example | The district (Bezirk) of each municipality, in the order of settlements; an empty string where it is unknown. |
| cantons | array of string | ["Neuchâtel"] | The canton (Kanton) of each municipality, in the order of settlements; an empty string where it is unknown. |
| regions | array of string | ["Espace Mittelland"] | The greater region (Grossregion) of each municipality, in the order of settlements; an empty string where it is unknown. |
[
{
"cantons": [
"Neuchâtel"
],
"country": "Switzerland",
"countryCode": "CH",
"lat": 46.995,
"lng": 6.929,
"postalCode": "2000",
"regions": [
"Espace Mittelland"
],
"settlements": [
"Neuchâtel"
]
}
]Errors
Fields of an error response
| Field | Type | Description |
|---|---|---|
| error_id | string | The reason the request failed, such as |
| errors | array of object | One entry per problem found in the request. |
| errors[].message | string | A readable explanation of the problem, in English. |
| errors[].help | string | A link to the documentation section that covers the problem. |
| errors[].parameter | any | The parameter the problem is about. Usually its name; a list when several parameters are involved, or a name with the values to choose from when the request must select one. |
| errors[].value | any | The value the request sent for |
MISSING_PARAMETERA parameter that other parameters depend on is missing. errors has one entry per missing parameter.
A parameter that other parameters depend on is missing. errors has one entry per missing parameter.
{
"error_id": "MISSING_PARAMETER",
"errors": [
{
"message": "Required parameter lat is missing",
"help": "https://pro6pp.nl/docs/v2/redoc",
"parameter": "lat"
}
]
}INVALID_PARAMETER_TYPEA value has the wrong type, such as text for a number.
A value has the wrong type, such as text for a number.
{
"error_id": "INVALID_PARAMETER_TYPE",
"errors": [
{
"message": "parameter: lat has invalid 1,0, should be number",
"help": "https://pro6pp.nl/docs/v2/redoc",
"parameter": "lat"
}
]
}INVALID_VALUEA required parameter is missing, or a value is malformed, out of bounds or cannot be found.
A required parameter is missing, or a value is malformed, out of bounds or cannot be found.
{
"error_id": "INVALID_VALUE",
"errors": [
{
"message": "value is invalid",
"help": "https://pro6pp.nl/docs/v2/redoc",
"parameter": "postalCode",
"value": "invalid"
}
]
}UNAUTHORIZEDThe API key is missing, unknown, revoked or expired, its subscription is not active, the request does not match the key's allowlist, or the subscription does not include this call.
The API key is missing, unknown, revoked or expired, its subscription is not active, the request does not match the key's allowlist, or the subscription does not include this call.
{
"error_id": "UNAUTHORIZED",
"errors": [
{
"message": "No authorization token provided",
"help": "https://pro6pp.nl/docs/v2/redoc#section/Authentication"
}
]
}Code examples
curl "https://api.pro6pp.nl/v2/suggest/ch/postalCode?postalCode=2000&authKey=YOUR_API_KEY"We encourage you to request example code in the language you prefer.
Step by step
Set up a quick form to try out the Switzerland Suggest functionality by following the steps below.
Build the HTML page
We start by creating an empty HTML page, containing a minimal web page structure. Create a new
.htmlfile namedpro6pp_switzerland_suggest.html. Add the following code between the<body>and</body>tags. It adds the input fields for entering the address.<form class="form" id="form"> <div>Call</div> <div> <label for="postalCode">postalCode:</label> <input id="postalCode" class="postalCode" placeholder="2000"/> <label for="maxResults">maxResults:</label> <input id="maxResults" class="maxResults" placeholder=""/> <label for="cursor">cursor:</label> <input id="cursor" class="cursor" placeholder=""/> </div> <div> <span style="color: red" class="message"></span> </div> <div> <button type="submit">Submit</button> </div> <br /> <div>Response</div> <br /> <div>Full Response</div> <pre class="jsonResponse"></pre> </form>Add interaction
Add the following JavaScript code in a separate
pro6pp_switzerland_suggest.jsfile. The IDs and Class names of the HTML elements should match with the ones specified in this JavaScript file in order to get the correct results.document.addEventListener("DOMContentLoaded", function() { const pro6ppAuthKey = "AUTH_KEY"; // Replace with your actual authorization key let messageSpan = document.querySelector(".message"); let jsonResponseSpan = document.querySelector(".jsonResponse"); const BASE_URL = "https://api.pro6pp.nl/v2"; function fetchAddress(authKey) { const queryParams = { postalCode: document.getElementById("postalCode").value, authKey: authKey }; const optionalQueryParams = [ "maxResults", "cursor", ]; for (const name of optionalQueryParams) { const value = document.getElementById(name).value; if (value !== "") { queryParams[name] = value; } } let encodedUrl = new URL(`${BASE_URL}/suggest/ch/postalCode`); encodedUrl.search = new URLSearchParams(queryParams); fetch(encodedUrl) .then(async (response) => { const data = await response.json(); if (data) { messageSpan.textContent = ""; jsonResponseSpan.textContent = JSON.stringify(data, null, 2); } }) .catch((error) => { console.error("Error fetching: ", error); messageSpan.textContent = error.message; }); } const form = document.getElementById("form"); form.onsubmit = function (event) { event.preventDefault(); fetchAddress(pro6ppAuthKey); } });Make it work
Link the JavaScript file inside the
pro6pp_switzerland_suggest.htmlright before closing the</body>tag.... <script src="pro6pp_switzerland_suggest.js"></script> </body> </html>To access the Pro6PP web service, you need to request your personal authorization key. This key is emailed to you right after signing up. Replace the above placeholder
AUTH_KEYwith your personal authorization key.If you don’t have an account yet, sign up for a free 2-month trial. After creating your account, go to your Subscription details and copy your
AUTH_KEY. You’ll need this key to authenticate your requests.See it in action
Once you’ve completed the previous steps, it’s time to run the form locally in your browser. You should now have two files in the same folder on your computer:
pro6pp_switzerland_suggest.html- the HTML page with the form.pro6pp_switzerland_suggest.js- the JavaScript file that handles the interaction.
You can now open the HTML file in your browser by simply double-clicking it in your file explorer (e.g., Finder on macOS or File Explorer on Windows). Alternatively, you can open it manually in the browser using the full
file:///path. For example:file:///C:/Users/YourName/Documents/pro6pp_switzerland_suggest.html file:///Users/yourname/Desktop/pro6pp_switzerland_suggest.htmlOnce the page opens, start typing in the form fields and hit Submit to see the API response displayed in the “Full Response” section.