关于HERE Geocoding API获取伦敦W2开头邮政编码的技术咨询

Hey there! Since you're migrating from MapServer to HERE and need all London postcodes starting with W2, let's break down how to get this done, plus how to access your paid support resources:

The Autocomplete API is built for real-time, multi-dimensional suggestions—not full list retrieval. Instead, you'll want to leverage HERE's Geocoding & Search API, which supports targeted filtering and prefix matching specifically for postcodes.

方法1：实时查询（适合小批量/动态场景） #

Use the Search API's wildcard matching and type filters to return only valid postcode results, no mixed address suggestions:

• Use q=W2* to specify the postcode prefix wildcard
• Add countryCodes=GBR to restrict results to the UK
• Narrow the scope to London with a geographic filter (e.g., a circle around central London) to avoid unrelated W2 postcodes from other regions
• Use types=postalCode to filter out all non-postcode results

Here's a sample request (replace YOUR_PAID_API_KEY with your actual credentials):

https://geocode.search.hereapi.com/v1/search
?apikey=YOUR_PAID_API_KEY
&q=W2*
&countryCodes=GBR
&in=circle:51.5074,-0.1278;r=20000
&types=postalCode

This will return a structured GeoJSON response with all matching W2 postcodes, including their geographic boundaries and coordinate data.

方法2：批量导出（适合一次性获取完整列表） #

If you need a full, static list of all W2 postcodes in London, use HERE's Batch Geocoding API:

1. Create a simple CSV input file where each row contains your query (e.g., W2*,GBR,London)
2. Submit the batch job via the API or HERE's developer portal
3. Once the job completes, download the results file containing all matching postcodes

Since you hold a paid HERE license, you have access to dedicated support channels:

• Support Tickets: Log into your HERE developer portal's paid user console, navigate to the "Support" section, and submit a detailed ticket. The HERE technical team will prioritize your request during business hours.
• Account Manager: If your plan includes a dedicated account manager, reach out directly—they can escalate your issue and provide tailored guidance for your migration needs.
• Premium Documentation: Access the paid customer-exclusive documentation library for advanced API guides, best practices, and tutorials specific to bulk postcode retrieval.

内容的提问来源于stack exchange，提问作者Raúl