(C++) Keeping Query Params in a Hashtable

Demonstrates how to use a Chilkat Hashtable to hold query params and re-emit as a query param string.

Note: The ToQueryString method was added in Chilkat v9.5.0.92.

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#include <CkHashtable.h>
#include <CkStringTable.h>

void ChilkatSample(void)
    {
    CkHashtable ht;
    bool success;

    // Add name/value pairs from an existing query param string where the values are already URL encoded.
    const char *qp = "txt=this%20is%20a%20test&color=blue&fruits=apples%26oranges";
    success = ht.AddQueryParams(qp);

    // Add some additional name/value pairs.
    ht.AddStr("name","Jack Sparrow");
    ht.AddStr("movie","Pirates of the Carribean");

    // Iterate over the hash table to show what we have..

    CkStringTable keys;
    ht.GetKeys(keys);
    int numKeys = keys.get_Count();
    const char *key = 0;
    const char *val = 0;
    int i = 0;
    while (i < numKeys) {
        key = keys.stringAt(i);
        val = ht.lookupStr(key);
        std::cout << key << " = " << val << "\r\n";
        i = i + 1;
    }

    // Output for the above loop:

    // color = blue
    // name = Jack Sparrow
    // fruits = apples&oranges
    // txt = this is a test
    // movie = Pirates of the Carribean

    // Get all name/value pairs as a query parm string with values URL encoded
    qp = ht.toQueryString();
    std::cout << qp << "\r\n";

    // Result:
    // color=blue&name=Jack%20Sparrow&fruits=apples%26oranges&txt=this%20is%20a%20test&movie=Pirates%20of%20the%20Carribean
    }