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how to unCompress gzip request with httpclient?#8909

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baloyou asked this question inQ&A
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I need to make a GET request via "HTTPClient", but the data is GZIP compressed, how can I decompress it?

This code would have been normal.But the API was changed to gzip form, and the received content became garbled.

if (https.begin(client, "https://devapi.qweather.com/v7/weather/now?location=101070102&key=mykey")) {  // HTTPS      Serial.print("[HTTPS] GET...\n");      int httpCode = https.GET();      if (httpCode > 0) {        Serial.printf("[HTTPS] GET... code: %d\n", httpCode);        if (httpCode == HTTP_CODE_OK || httpCode == HTTP_CODE_MOVED_PERMANENTLY) {          String payload = https.getString();          Serial.println(payload);        }      } else {        Serial.printf("[HTTPS] GET... failed, error: %s\n", https.errorToString(httpCode).c_str());      }            https.end();
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You can't, for most practical purposes. The smallest GZip library out there, uzlib, needs a 32K contiguous dictionary buffer plus a few K of other buffers and structures. You're unlikely to have that much free, contiguous RAM at runtime.

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@baloyou@earlephilhower
Converted from issue

This discussion was converted from issue #8908 on April 16, 2023 17:36.

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